49th week of 2021 patent applcation highlights part 68 |
Patent application number | Title | Published |
20210384869 | ENVELOPE TRACKING CIRCUIT AND RELATED POWER AMPLIFIER APPARATUS - An envelope tracking (ET) circuit and related power amplifier apparatus is provided. An ET power amplifier apparatus includes an ET circuit and a number of amplifier circuits. The ET circuit is configured to provide a number of ET modulated voltages to the amplifier circuits for amplifying concurrently a number of radio frequency (RF) signals. The ET circuit includes a target voltage circuit for generating a number of ET target voltages adapted to respective power levels of the RF signals and/or respective impedances seen by the amplifier circuits, a supply voltage circuit for generating a number of constant voltages, and an ET voltage circuit for generating the ET modulated voltages based on the ET target voltages and a selected one of the constant voltages. By employing a single ET circuit, it may be possible to reduce the footprint and improve heat dissipation of the ET power amplifier apparatus. | 2021-12-09 |
20210384870 | APPARATUS AND METHODS FOR AMPLIFIER INPUT-OVERVOLTAGE PROTECTION WITH LOW LEAKAGE CURRENT - Apparatus and methods for amplifier input-overvoltage protection with low leakage current are provided herein. In certain embodiments, amplifier input circuitry for an amplifier includes a pair of input terminals, a pair of input transistors each having a control input (for instance, a transistor gate), a pair of protection transistors each connected between one of the input terminals and the control input of a corresponding one of the input transistors, and a bidirectional clamp connected between the control inputs of the input transistors. Implementing the amplifier input circuitry in this manner provides a number of advantages including, but not limited to, robust protection against input overvoltage and low input-leakage current. | 2021-12-09 |
20210384871 | VACUUM TUBE FOR AMPLIFIER CIRCUIT, AND AMPLIFIER CIRCUIT USING SAME - A vacuum tube for amplifier circuit includes: a light incidence window that transmits signal light; a photoelectric conversion unit that converts the signal light transmitted through the light incidence window into photoelectrons; an output unit that has an anode, on which the photoelectrons are incident, and outputs a signal corresponding to the incident photoelectrons; and a grid electrode that is disposed in a path of the photoelectrons from the photoelectric conversion unit to the anode and controls the amount of photoelectrons incident on the anode. | 2021-12-09 |
20210384872 | TRANS-IMPEDANCE AMPLIFIER FOR ULTRASOUND DEVICE AND RELATED APPARATUS AND METHODS - A variable current trans-impedance amplifier (TIA) for an ultrasound device is described. The TIA may be coupled to an ultrasonic transducer to amplify an output signal of the ultrasonic transducer representing an ultrasound signal received by the ultrasonic transducer. During acquisition of the ultrasound signal by the ultrasonic transducer, one or more current sources in the TIA may be varied. | 2021-12-09 |
20210384873 | AUDIO OUTPUT DEVICE - An audio output device includes PWM output devices, a weighting unit, a mixer, and an amplifier. The PWM output devices divide audio data into multiple parts including an upper bit part to a lower bit part, and output the multiple parts of the audio data as PWM outputs. The weighting unit weights the PWM outputs from the PWM output devices. The mixer synthesizes the PWM outputs after being weighted. The amplifier supplies an electric current to a sounding body in accordance with a synthesis result by the mixer to cause the sounding body to emit a sound. | 2021-12-09 |
20210384874 | FLOATING INVERTER AMPLIFIER DEVICE - An exemplary system and method is disclosed employing a floating inverter amplifier comprising an inverter-based circuit comprising an input configured to be switchable between a floating reservoir capacitor during a first phase of operation and to a device power source during a second phase of operation. In some embodiments, the floating inverter amplifier is further configured for current reuse and dynamic bias. In other embodiments, the floating inverter amplifier is further configured with a dynamic cascode mechanism that does not need any additional bias voltage. The dynamic cascode mechanism may be used in combination with 2-step fast-settling operation to provide high-gain and high-speed noise suppression operation. | 2021-12-09 |
20210384875 | COMPOSITE CASCODE POWER AMPLIFIERS FOR ENVELOPE TRACKING APPLICATIONS - Composite cascode power amplifiers for envelope tracking applications are provided herein. In certain embodiments, an envelope tracking system includes a composite cascode power amplifier that amplifies a radio frequency (RF) signal and that receives power from a power amplifier supply voltage, and an envelope tracker that generates the power amplifier supply voltage based on an envelope of the RF signal. The composite cascode power amplifier includes an enhancement mode (E-MODE) field-effect transistor (FET) for amplifying the RF signal and a depletion mode (D-MODE) FET in cascode with the E-MODE FET. | 2021-12-09 |
20210384876 | POWER AMPLIFIERS WITH ADAPTIVE BIAS FOR ENVELOPE TRACKING APPLICATIONS - Power amplifiers with adaptive bias for envelope tracking applications are provided herein. In certain embodiments, an envelope tracking system includes a power amplifier that amplifies a radio frequency (RF) signal and that receives power from a power amplifier supply voltage, and an envelope tracker that generates the power amplifier supply voltage based on an envelope of the RF signal. The power amplifier includes a field-effect transistor (FET) for amplifying the RF signal, and a current mirror including an input that receives a reference current and an output connected to the power amplifier supply voltage. An internal voltage of the current mirror is used to bias the gate of the FET to compensate the FET for changes in the power amplifier supply voltage arising from envelope tracking. | 2021-12-09 |
20210384877 | RF POWER SOURCE WITH IMPROVED GALVANIC ISOLATION - Disclosed is an RF (Radio Frequency) power source having a power supply configured to convert an AC (Alternating Current) voltage at a power supply input to a second voltage at a power supply output, and an RF generator configured to receive the second voltage at an RF generator input and to use the second voltage to produce an output RF signal at an RF generator output. According to an embodiment of the disclosure, the power supply performs the voltage conversion without galvanic isolation between the power supply input and the power supply output, which can increase energy efficiency while reducing complexity and cost as well. Instead, the RF generator is provided with galvanic isolation between the RF generator input and the RF generator output, which can be sufficient for achieving galvanic isolation between the power supply input and the RF generator output for safety reasons. | 2021-12-09 |
20210384878 | Superconducting Signal Amplifier - A system includes a plurality of superconducting wires connected in parallel with one another. The plurality of superconducting wires includes a first superconducting wire and a second superconducting wire. The plurality of superconducting wires are configured to, while receiving a bias current provided to the parallel combination of the plurality of superconducting wires, operate in a superconducting state in the absence of a trigger current. The first superconducting wire is configured to, while receiving the bias current, transition to a non-superconducting state in response to receiving the trigger current. The second superconducting wire is configured to, while receiving the bias current, transition to a non-superconducting state in response to the first superconducting wire transitioning to the non-superconducting state. | 2021-12-09 |
20210384879 | ACOUSTIC SIGNAL PROCESSING DEVICE, ACOUSTIC SIGNAL PROCESSING METHOD, AND NON-TRANSITORY COMPUTER-READABLE RECORDING MEDIUM THEREFOR - According to aspects of the present disclosures, an acoustic signal processing device includes a sound pressure measurement section configured to measure a sound pressure of a sound output from a speaker, a recording level obtaining section configured to obtain a recording level of an audio signal which is a signal representing the sound, and a gain increasing section configured to increase a gain to the audio signal when the sound pressure measured by the sound pressure measurement section is equal to or larger than a first threshold and the recording level obtained by the recording level obtaining section is less than a second threshold. | 2021-12-09 |
20210384880 | ADVANCED GAIN SHAPING FOR ENVELOPE TRACKING POWER AMPLIFIERS - Envelope tracking power amplifiers with advanced gain shaping are provided. In certain implementations, a power amplifier system includes a power amplifier that amplifies a radio frequency (RF) signal and an envelope tracker that controls a voltage level of a supply voltage of the power amplifier based on an envelope of the RF signal. The power amplifier system further includes a gain shaping circuit that generates a gain shaping current that changes with the voltage level of the supply voltage from the envelope tracker. For example, the gain shaping circuit can include an analog look-up table (LUT) mapping a particular voltage level of the supply voltage to a particular current level of gain shaping current. Additionally, the gain shaping circuit biases the power amplifier based on the gain shaping current. | 2021-12-09 |
20210384881 | METHOD FOR DETERMINING CLEANLINESS OF CLEANING MEMBER, METHOD FOR DETERMINING ADSORPTION CHARACTERISTICS OF CONTAMINANTS THAT CONTAMINATE CLEANING MEMBER, METHOD FOR DETERMINING CLEANLINESS OF SUBSTRATE, PROGRAM FOR DETERMINING CLEANLINESS OF SUBSTRATE, AND PROGRAM FOR DETERMINING END POINT OF CLEANING PROCESS - In a method for determining cleanliness of a cleaning member that contacts a substrate and with which scrub cleaning is performed, the method includes a first step of self-cleaning a cleaning member by releasing contaminants from the cleaning member into a cleaning liquid, and a second step of bringing a self-cleaning discharged liquid into contact with an electrode of a crystal oscillator, attaching the contaminants contained in the discharged liquid onto the electrode of the crystal oscillator, then measuring a frequency response of the crystal oscillator in which the contaminants are attached onto the electrode, and determining cleanliness of the cleaning member based on the measured frequency response. | 2021-12-09 |
20210384882 | RESONANCE DEVICE AND METHOD FOR MANUFACTURING RESONANCE DEVICE - A resonator is provided that includes a vibrating section that vibrates in a contour vibration mode, a frame that surrounds at least a portion of the vibrating section, supporting sections extending along a Y-axis direction and connecting the vibrating section and the frame. The vibrating section includes a through hole that extends along an X-axis direction perpendicular to the Y-axis direction such that a coupling section is disposed between the through hole and each of the supporting sections. The length SL of the through hole in the X-axis direction is longer than the length Sd of the coupling section in the Y-axis direction. | 2021-12-09 |
20210384883 | ELECTRONIC DEVICE AND MANUFACTURING METHOD THEREFOR - An electronic device that includes a base substrate having a mounting surface; an electronic component having a mechanical vibration portion mounted on the mounting surface of the base substrate; an intermediate layer mounted on the base substrate and forming an internal space with the base substrate so as to accommodate the electronic component therein, the intermediate layer having at least one through-hole that opens the internal space to an outside; and a sealing layer on the intermediate layer and sealing the internal space by closing the at least one through-hole. | 2021-12-09 |
20210384884 | VIBRATOR AND OSCILLATOR - A vibrator includes a vibration element having an excitation section which is provided with excitation electrodes, and which excites a thickness shear vibration, and a fixation section electrically coupled to at least one of the excitation electrodes, a vibration attenuator disposed on at least one of principal surfaces of the vibration element, and a support substrate having a coupling electrode which is electrically coupled to the fixation section, and which supports the vibration element, wherein the vibration attenuator is disposed at the fixation section side of the excitation electrodes, and at an outer circumferential edge side of the vibration element from the fixation section in a direction perpendicular to a direction in which the excitation electrodes and the fixation section are arranged side by side. | 2021-12-09 |
20210384885 | SURFACE ACOUSTIC WAVE DEVICE - A surface acoustic wave device includes a piezoelectric substrate including principal surfaces and an IDT electrode on a first principal surface side of the principal surfaces, and the first principal surface is a polarization positive potential surface of the piezoelectric substrate. | 2021-12-09 |
20210384886 | ACOUSTIC WAVE FILTER DEVICE AND MULTIPLEXER - An acoustic wave filter device includes a first longitudinally coupled acoustic wave resonator including an odd number of first IDT electrodes arranged along an acoustic wave propagation direction and a second longitudinally coupled acoustic wave resonator including an odd number of second IDT electrodes arranged in the acoustic wave propagation direction. Among the first IDT electrodes, the odd-numbered IDT electrodes are connected to a node and the even-numbered IDT electrodes are connected to a node. Among the second IDT electrodes, the odd-numbered IDT electrodes are connected to the node and the even-numbered IDT electrodes are connected to the node. The number of first IDT electrodes connected to the node and the number of second IDT electrodes connected to the node are the same. | 2021-12-09 |
20210384887 | BULK ACOUSTIC WAVE RESONATORS EMPLOYING MATERIALS WITH PIEZOELECTRIC AND NEGATIVE PIEZOELECTRIC COEFFICIENTS - Bulk acoustic wave resonators are presented. Such resonators typically operate based on a dynamic nonuniform effective piezoelectricity in composite multilayer ferroelectrics with large electrostriction coefficients, like barium strontium titanate (BST). Harmonic resonance modes of a multilayer bulk acoustic wave resonator can be selectively excited with an electromechanical coupling coefficient equal to the fundament mode, which is contrary to the trend K2∝1/n2 exhibited by conventional piezoelectric bulk acoustic resonators. Such a resonator allows for the design of a new class of band-switching filters. | 2021-12-09 |
20210384888 | CRYSTAL DEVICE AND METHOD FOR MANUFACTURING CRYSTAL DEVICE - A crystal device includes a bearing base, an integrated chip and a conductive adhesive unit. The bearing base includes a conductive seat. The integrated chip includes a principal reference plane facing the conductive seat, and having a first major axis. The conductive adhesive unit has a second major axis and an aspect ratio, and is at least partly disposed between the conductive seat and the integrated chip. The aspect ratio ranges from 1.1 to 1.9. The principal reference plane further has a perpendicular projection straight line defined according to the second major axis. A practical angle is included by the first perpendicular projection straight line and the first major axis, and ranges from 0 degree to 90 degrees. | 2021-12-09 |
20210384889 | BANDPASS FILTER WITH FREQUENCY SEPARATION BETWEEN SHUNT AND SERIES RESONATORS SET BY DIELECTRIC LAYER THICKNESS - An acoustic filter includes a piezoelectric plate on a substrate. Portions of the piezoelectric plate form one or more diaphragms, each diaphragm spanning a respective cavity in the substrate. A conductor pattern on a front surface of the piezoelectric plate includes interdigital transducers (IDTs) of acoustic resonators including a shunt resonator and a series resonator. Interleaved fingers of each IDT are on a diaphragm of the one or more diaphragms. A first dielectric layer with a first thickness is between the fingers of the IDT of the shunt resonator, and a second dielectric layer with a second thickness less than the first thickness is between the fingers of the IDT of the series resonator. The piezoelectric plate and the IDTs are configured such that radio frequency signals applied to the IDTs excite respective primary shear acoustic modes within the diaphragms. | 2021-12-09 |
20210384890 | SPLIT-TYPE, HALF-LATTICE MICRO-ACOUSTIC FILTER USING A PHASE SHIFTER AND HAVING BROAD BANDWIDTH - A micro-acoustic RF filter comprises first and second ports ( | 2021-12-09 |
20210384891 | METHOD AND APPARATUS FOR NONLINEAR SIGNAL PROCESSING - The present disclosure relates to a concept of nonlinear signal processing which may be used for predistortion for RF power amplifiers. The concept includes generating time variant filter coefficients for a linear filter circuit based on a nonlinear mapping of an input signal, and filtering the input signal with the linear filter circuit using the time variant filter coefficients in order to generate a filtered output signal. Thus, it is proposed to implement a non-linear filter by a time-varying linear filter where the time-varying coefficients are derived from the input signal. | 2021-12-09 |
20210384892 | PARALLEL IMPLEMENTATIONS OF FRAME FILTERS WITH RECURSIVE TRANSFER FUNCTIONS - The exemplary embodiments provide a parallel implementation of filters with recursive transfer functions. This can enable a filter to act as a frame filter that may process a frame of multiple samples of data in parallel rather than being limited to processing a single sample of data at a time. Each frame contains plural input samples of data values. The input samples are from a common source and have a time dependency. The exemplary embodiments are suitable for implementing various types of filters in parallel, such as cascaded integrator comb filters, biquad filters and other types of infinite impulse response (IIR) filters. The exemplary embodiments may use polyphase decomposition to decompose a filter with a recursive transfer function into multiple polyphase component filters. The polyphase component filters may be applied to respective samples of data in a parallel pipelined configuration to produce filtered output for the samples of data in parallel. | 2021-12-09 |
20210384893 | PULSE WIDTH SIGNAL OVERLAP COMPENSATION TECHNIQUES - A pulse signal compensation circuit of a pulse generator can include a pulse measurement circuit and a compensation generator circuit. The pulse measurement circuit can be configured to receive a plurality of pulse signals and to generate an average duty cycle or pulse overlap signal proportional to the duty cycle or pulse overlap of the plurality of pulses. The compensation generator circuit can be configured to receive the average duty cycle or pulse overlap signal and generate a duty cycle or pulse overlap compensation signal based on the average duty cycle or pulse overlap signal. The compensation signal can be utilized to adjust the duty cycle, amount of positive or negative pulse width overlap, and or the like of the plurality of pulse signals. | 2021-12-09 |
20210384894 | BIAS GENERATION CIRCUIT, BUFFER CIRCUIT INCLUDING THE BIAS GENERATION CIRCUIT AND SEMICONDUCTOR SYSTEM INCLUDING THE BUFFER CIRCUIT - A bias generation circuit may include a bias generator and compensator. The bias generator may be configured to generate a bias voltage based on a reference voltage. The compensator may be configured to detect level changes of a power voltage. The compensator may be configured to control a level of the bias voltage based on detection results. | 2021-12-09 |
20210384895 | LOW POWER INPUT RECEIVER USING A SCHMITT TRIGGER CIRCUIT - An input signal having a logic low level at a first voltage and a logic high level at a second voltage is received by a Schmitt trigger. A voltage generator outputs a reference voltage generated from a third voltage that is higher than the second voltage. A first transistor coupled between the third voltage and a power supply node of the Schmitt trigger is biased by the reference voltage to apply a fourth voltage to the power supply node of the Schmitt trigger that is dependent on the reference voltage. The reference voltage has a value which causes the fourth voltage to be less than or equal to the second voltage. A second transistor coupled between the input signal and the input of the Schmitt trigger circuit is also biased by the reference voltage to control the logic high level voltage of the input signal at the Schmitt trigger. | 2021-12-09 |
20210384896 | MULTI-RESONANT COUPLING ARCHITECTURES FOR ZZ INTERACTION REDUCTION - Systems and techniques that facilitate multi-resonant couplers for preserving ZX interaction while reducing ZZ interaction are provided. In various embodiments, a first qubit can have a first operational frequency and a second qubit can have a second operational frequency, and a multi-resonant architecture can couple the first qubit to the second qubit. In various embodiments, the multi-resonant architecture can comprise a first resonator and a second resonator. In various cases, the first resonator can capacitively couple the first qubit to the second qubit, and a second resonator can capacitively couple the first qubit to the second qubit. In various aspects, the first resonator and the second resonator can be in parallel. In various instances, the first resonator can have a first resonant frequency less than the first operational frequency and the second operational frequency, and the second resonator can have a second resonant frequency greater than the first operational frequency and the second operational frequency. In various other embodiments, the multi-resonant architecture can comprise a resonator, a first end of which can be capacitively coupled to the first qubit and to the second qubit, and a second end of which can be coupled to ground. In various instances, the resonator can have a first harmonic less than the first operational frequency and the second operational frequency, and can have a second harmonic greater than the first operational frequency and the second operational frequency. In various other embodiments, the multi-resonant architecture can comprise a resonator and a direct coupler. In various embodiments, the resonator and the direct coupler can both capacitively couple the first qubit to the second qubit, and the resonator and the direct coupler can be in parallel. In various cases, the direct coupler can couple opposite pads of the first qubit and the second qubit. In various embodiments, a first end of the resonator can be capacitively coupled to the first qubit and the second qubit, a second end of the resonator can be coupled to ground, and the direct coupler can capacitively couple common pads of the first qubit and the second qubit. | 2021-12-09 |
20210384897 | MULTI-LEVEL OUTPUT DRIVER WITH ADJUSTABLE PRE-DISTORTION CAPABILITY - A PAM (Pulse Amplitude Modulation) modulator driver is configured to receive a PAM input signal having N input amplitude levels and provide a PAM output signal having N output amplitude levels, where N is an integer. The PAM modulator driver circuit configured to electrically adjust amplitude levels in the PAM output signal. | 2021-12-09 |
20210384898 | SEMICONDUCTOR DEVICE - A semiconductor device, including a control circuit that has a gate control circuit driving a power semiconductor element. The control circuit further includes a plurality of alarm detection circuits respectively detecting a plurality of abnormalities, a protection circuit stopping the gate control circuit responsive to the detection of any abnormality, an alarm signal generation circuit generating an alarm signal responsive to the detected abnormality, a warning detection circuit detecting a warning before any of the abnormalities is detected, and a pulse generation circuit generating a warning signal while the warning is being detected. The alarm signal is a one-shot pulse having a pulse width thereof corresponding to the detected abnormality, such that alarm signals generated responsive to different abnormalities have different pulse widths. The warning signal includes a plurality of successive pulses, each of which has a pulse width smaller than any of the pulse widths of the alarm signals. | 2021-12-09 |
20210384899 | SELF-BIASING SHUNT SWITCH WITH BOOTSTRAPPING - A shunt switch. In some embodiments, the shunt switch includes a transistor stack including a first transistor and a capacitor. The transistor stack may have a first end terminal and a second end terminal, the first transistor being connected to the first end terminal, the first end terminal being connected to a switching terminal of the shunt switch. The capacitor may have a first terminal connected to the second end terminal of the transistor stack, and a second terminal connected to a low-impedance node. | 2021-12-09 |
20210384900 | METHOD AND SYSTEM OF CURRENT SHARING AMONG BIDIRECTIONAL DOUBLE-BASE BIPOLAR JUNCTION TRANSISTORS - Current sharing among bidirectional double-base bipolar junction transistors. One example is a method comprising: conducting current through a first bidirectional double-base bipolar junction transistor (first B-TRAN); conducting current through a second B-TRAN the second B-TRAN coupled in parallel with the first B-TRAN; measuring a value indicative of conduction of the first B-TRAN, and measuring a value indicative of conduction of the second B-TRAN; and adjusting a current flow through the first B-TRAN, the adjusting responsive to the value indicative of conduction of the first B-TRAN being different than the value indicative of conduction of the second B-TRAN. | 2021-12-09 |
20210384901 | GLITCH POWER ANALYSIS AND OPTIMIZATION ENGINE - A switching activity report of simulated switching activities of a semiconductor circuit is accessed. A plurality of glitch bottleneck ratios corresponding to a plurality of pins in the semiconductor circuit are determined, comprising by: setting an initial bottleneck ratio on a leaf output pin; and backward traversing the semiconductor circuit to determine a plurality of glitch bottleneck ratios of pins in a fan-in cone of the leaf output pin. | 2021-12-09 |
20210384902 | SWITCH CONTROL DEVICE - The present description concerns a method of controlling at least one switch (TH), including: the reception of signals (S | 2021-12-09 |
20210384903 | SWITCHABLE DIODE DEVICES HAVING TRANSISTORS IN SERIES - An electronic chip includes a chip core including an input terminal, an output terminal, an external pad, and an input-output circuit coupled to the chip core and the external pad. The input-output circuit includes an enable terminal coupled to the chip core, a connection terminal coupled to the external pad, a switchable diode device coupled between a supply voltage and a reference voltage, and a levelling circuit. The switchable diode device is coupled to the connection terminal and the enable terminal and is configured to operate as a diode in response to a control signal in a first state applied to the enable terminal and to operate as an open circuit in response to the control signal in a second state applied to the enable terminal. The levelling circuit is coupled to the connection terminal, the input terminal of the chip core, and the output terminal of the chip core. | 2021-12-09 |
20210384904 | OPTICAL FINGERPRINT IDENTIFICATION CIRCUIT AND DISPLAY PANEL - An optical fingerprint identification circuit and a display panel are provided. The optical fingerprint identification circuit adds a reset unit at the gate of the driving transistor. The anode of the photodiode is electrically connected to the scan line. The optical fingerprint identification circuit could effectively avoid the reverse breakdown risk of the photodiode while realizing the fingerprint identification. It could reduce the requirement for the reverse breakdown voltage of the photodiode and requirement for the performance of the sensor. Furthermore, the circuit structure is simpler and the number of the TFTs is reduced. This improves the integration of the circuit. | 2021-12-09 |
20210384905 | ON DIE TERMINATION CIRCUIT AND MEMORY DEVICE - An on die termination (ODT) circuit includes a signal input terminal; a grounding terminal; a first transistor including a control terminal and a first terminal which are electrically connected with the signal input terminal, and a second terminal electrically connected with the grounding terminal; and a second transistor including a control terminal electrically connected with the signal input terminal, a first terminal, and a second terminal electrically connected with the grounding terminal, and when voltage of the signal input terminal changes, the first transistor has a change trend of resistance opposite to that of the second transistor. | 2021-12-09 |
20210384906 | SINGLE-POLARITY LEVEL SHIFTER CIRCUIT AND SEMICONDUCTOR DEVICE - A semiconductor device capable of level shifting in a negative potential direction using an n-channel transistor is provided. The semiconductor device includes a first source follower, a second source follower, and a comparator. The first source follower is supplied with a second high power supply potential and a low power supply potential; the second source follower is supplied with a first high power supply potential and the low power supply potential; and a digital signal which expresses a high level or a low level using the second high power supply potential or the first high power supply potential is input to the first source follower. Here, the second high power supply potential is a potential higher than the first high power supply potential, and the first high power supply potential is a potential higher than the low power supply potential. The comparator compares output potentials of the first source follower and the second source follower and outputs a digital signal which expresses a high level or a low level using the first high power supply potential or the low power supply potential. | 2021-12-09 |
20210384907 | SEMICONDUCTOR CIRCUIT AND SEMICONDUCTOR SYSTEM - A signal is caused to have a small amplitude without increasing a voltage source, and power consumption is reduced. A semiconductor circuit includes a driver, and a pulse control circuit that controls the driver. The driver has a configuration in which first and second transistors are connected. The pulse control circuit supplies a first control signal to the first transistor, and supplies a second control signal to the second transistor. The first and second control signals to be supplied from the pulse control circuit are different in a pulse width from each other. Therefore, the pulse control circuit reduces an output amplitude of the driver. | 2021-12-09 |
20210384908 | DYNAMIC CONTROL CONVERSION CIRCUIT - The present disclosure relates to a dynamic control conversion circuit, which includes: a dynamic control unit configured to generate a dynamic control signal according to a received input signal; a first semiconductor switch, a control terminal of the first semiconductor switch is connected with a first signal output terminal of the dynamic control unit, and a first terminal of the first semiconductor switch is connected with a first voltage terminal; a second semiconductor switch, a control terminal of the second semiconductor switch is connected with a second signal output terminal of the dynamic control unit; and a circuit output unit having a first control terminal connected with a second terminal of the first semiconductor switch and a first terminal of the second semiconductor switch, and a second control terminal connected with a second terminal of the second semiconductor switch and a third signal output terminal of the dynamic control unit. | 2021-12-09 |
20210384909 | LOGIC CIRCUIT - A logic circuit includes a first pull-up driving circuit configured to drive a first inverted input signal to a supply voltage based on a first input signal, and configured to pull up an output signal based on the first input signal, a second input signal, and a third inverted input signal. The logic circuit also includes a first pull-down driving circuit configured to drive the third inverted input signal to a ground voltage based on the third input signal, and configured to pull down the output signal based on the first inverted input signal, the second input signal, and the third input signal. | 2021-12-09 |
20210384910 | Power Control Device, Driving Module and Switching Power Supply Device - The present disclosure relates to a power control device, a driving module and a switching power supply device. The power control device includes: a control terminal, configured to input and output a control signal to and from the driving module; an enable output terminal, configured to output an enable signal to the driving module; a control circuit; and an input/output circuit, configured to have the control signal be a first logic level when the output transistor is turned on and the synchronous rectifier transistor is turned off, and to have the control signal be a second logic level when the output transistor is turned off and the synchronous rectifier transistor is turned on, and to be able to become an input standby state according to an instruction from the control circuit. | 2021-12-09 |
20210384911 | HIGH-SPEED CORE INTERCONNECT FOR MULTI-DIE PROGRAMMABLE LOGIC DEVICES - Systems and methods related to multi-die integrated circuits that may include dies having high-speed core interconnects. The high-speed core interconnects may be used to directly connect two adjacent dies. | 2021-12-09 |
20210384912 | FAST MEMORY FOR PROGRAMMABLE DEVICES - An integrated circuit device may include a programmable fabric die having programmable logic fabric and configuration memory that may configure the programmable logic fabric. The integrated circuit device may also include a base die that may provide fabric support circuitry, including memory and/or communication interfaces as well as compute elements that may also be application-specific. The memory in the base die may be directly accessed by the programmable fabric die using a low-latency, high capacity, and high bandwidth interface. | 2021-12-09 |
20210384913 | PHASE-LOCKED LOOP SLIP DETECTOR - A phase-locked loop (PLL) includes a phase-frequency detector (PFD) having a first PFD input, a second PFD input, and a PFD output. The PFD is configured to generate a first signal on the PFD output. The first signal comprises pulses having pulse widths indicative of a phase difference between signals on the first and second PFD inputs. A low pass filter (LPF) has an LPF input and an LPF output. The LPF input is coupled to the PFD output. A flip-flop has a clock input and a flip-flop output. The clock input is coupled to the LPF output. A lock-slip control circuit is coupled to the flip-flop output and to the first PFD input. The lock-slip control circuit is configured to determine phase-lock and phase-slip based at least in part on a signal on the flip-flop output. | 2021-12-09 |
20210384914 | CIRCUIT FOR ANALOG/DIGITAL CONVERSION - A circuit for analog-digital conversion, which includes a first connection and a second connection and a third connection and a fourth connection for connecting a sensor, an analog-digital converter (ADC), whose first input is connected to the first connection and whose second input is connected to the second connection, a first current source circuit for outputting a first output current, a first switching device for the switchable connection of the first current source circuit to the first connection or to the third connection, a current source/sink circuit for outputting a second output current, a second switching device for the switchable connection of the current source/sink circuit to a reference potential or to the second connection, and a third switching device for the switchable connection of the reference potential to the second connection or to the fourth connection. | 2021-12-09 |
20210384915 | APPARATUS AND SYSTEM FOR A PROGRAMMABLE RESISTANCE CIRCUIT - A programmable resistance circuit provides a selected resistance by configuring a reference resistor to exhibit an effective resistance, in an operational sense, by achieving an average output voltage between a source line and a return line in the programmable resistance circuit. The average output voltage corresponds to the effective resistance. The effective resistance is achieved by utilizing a modulated voltage source to bias a transistor and intermittently draw current across the reference resistor according to the duty cycle of the modulated voltage source. A programmed resistance circuit can produce a selected resistance corresponding to button selection zones of a vehicle user interface when connected to a remote circuit that acts according to a user selection. | 2021-12-09 |
20210384916 | DTC DEVICE AND METHOD BASED ON CAPACITIVE DAC CHARGING - A DTC circuit, includes: a DAC connected to a first node; a first switch connected between a first power source and a second node, and to provide a charge current to the second node according to a first switching signal; and a second switch connected between the first node and the second node, and to electrically connect the DAC to the second node according to a second switching signal. The DAC is to be charged to generate a voltage ramp corresponding to the charge current during a first DTC operational phase when the first and second switching signals have an active level to turn on the first and second switches, and to generate an input control word dependent voltage according to an input control word during a second DTC operational phase when the first and second switching signals have an inactive level to turn off the first and second switches. | 2021-12-09 |
20210384917 | SEMICONDUCTOR DEVICE AND DECODING METHODS - The present invention is to reduce detection of an erroneous edge caused by variation in a case of a sampling frequency that is not larger than a data transmission frequency. A semiconductor device includes: a data reception circuit configured to receive first data at first time and receive second data at second time; and an edge recognition circuit configured to set a range and detect an edge contained in the range. The edge recognition circuit includes a measurement circuit configured to measure a first period taken from the reception of the first data to the reception of the second data, and is configured to determine the range in which the edge contained in the data that is received by the data reception circuit is detected, on the basis of the first period. | 2021-12-09 |
20210384918 | UNIVERSAL GUESSING RANDOM ADDITIVE NOISE DECODING (GRAND) DECODER - Described is a decoder suitable for use with any communication or storage system. The described decoder has a modular decoder hardware architecture capable of implementing a noise guessing process and due to its dependency only on noise, the decoder design is independent of any encoder, thus making it a universal decoder. Hence, the decoder architecture described herein is agnostic to any coding scheme. | 2021-12-09 |
20210384919 | ERROR CORRECTION DEVICE AND METHOD FOR GENERATING SYNDROMES AND PARTIAL COEFFICIENT INFORMATION IN A PARALLEL - An error correction device according to the technical idea of the present disclosure includes a syndrome generation circuit configured to receive data and generate a plurality of syndromes for the data, a partial coefficient generation circuit configured to generate partial coefficient information on a part of a coefficient of an error location polynomial by using the data while the plurality of syndromes are generated, an error location determination circuit configured to determine the coefficient of the error location polynomial based on the plurality of syndromes and the partial coefficient information, and obtain a location of an error in the data by using the error location polynomial, and an error correction circuit configured to correct the error in the data according to the location of the error. | 2021-12-09 |
20210384920 | METHOD FOR LAYERED ENCODING UNDER HIGH DIMENSIONAL MODULATION - A layered coding method based on high order modulation comprising: S1: inputting serial data flow from a serial data input end into a serial-to-parallel converter; S2: inputting the data flow treated by the serial-to-parallel converter into the a multi-layer coder; S3: correlating the coders at individual layers with each other and transmitting information based on high order modulation; S4: inputting the data flow treated by the coders at individual layers into a modulator for modulation mapping processing; S5: outputting the data flow from the output end of the modulator. By means of correlating coders at layers with each other, the coder at each layer can code the data of its own layer while transmitting the data to the coder at a higher layer for protection, until reaching the coder at the highest layer, improving the coding rate, error correcting ability and data processing performance in a multi-layer coder | 2021-12-09 |
20210384921 | OPTICAL TRANSMISSION DEVICE AND LIKELIHOOD GENERATION CIRCUIT - Provided is an optical transmission device including: a symbol demapping unit; a likelihood generation circuit configured to generate likelihoods relating to the reception signal; and an error correction decoding unit configured to execute soft decision decoding. The likelihood generation circuit includes: a first one-dimensional-modulation lookup table configured to input the signal of the I-axis component as an argument to output a first likelihood; a second one-dimensional-modulation lookup table configured to input the signal of the Q-axis component as an argument to output a second likelihood; and a two-dimensional-modulation lookup table configured to input, as an argument, the signal being the concatenation of the signal of the I-axis component and the signal of the Q-axis component, to generate a third likelihood. The error correction decoding unit is configured to execute the soft decision decoding based on the first likelihood, the second likelihood, and the third likelihood. | 2021-12-09 |
20210384922 | METHOD AND APPARATUS FOR LOW-DENSITY PARITY-CHECK (LDPC) CODING - An apparatus and method are described. The apparatus includes a transceiver and processor, which attach transport block (TB) level CRC bits to a TB, select an LDPC base graph (BG) based on a code rate (CR) and TB size of the TB including TB level CRC bits, determine a number of code blocks (CBs) to use for segmenting the TB including TB level CRC bits depending on the selected LDPC BG, determine a single CB size for each of the CBs based on the number of CBs, segment the TB including TB level CRC bits into the CBs based on the number of CBs and CB size, pad zeros to a last CB of the CBs in the segmented TB, attach CB level CRC bits to each CB in the segmented TB, encode each CB in the segmented TB using the selected LDPC base graph, and transmit the encoded CBs. | 2021-12-09 |
20210384923 | BAND SWITCHING BALUN - A band-switching network includes a dual-band balun and a switch network. The dual-band balun includes a first output and a second output. The switch network includes a first switch and a second switch in which an input to the first switch is coupled to the first output and an input to the second switch is coupled to the second balanced output. The dual-band balun further includes a primary coil, a first secondary coil and a second secondary coil in which the first secondary coil is coupled to the first balanced output and the second secondary coil is coupled to the second balanced output. In one embodiment, the primary coil and the first secondary coil are coupled by a first coupling factor k | 2021-12-09 |
20210384924 | FILTER, MULTIPLEXER, RADIO FREQUENCY FRONT-END CIRCUIT, AND COMMUNICATION DEVICE - A filter includes series resonators in a signal path. An IDT electrode included in the series resonators includes at least either first electrode fingers including variant portions or second electrode fingers not including variant portions. In the IDT electrode included in one or more series resonators of the series resonators, a direction that connects the respective other ends of a plurality of electrode fingers intersects an acoustic wave propagation direction. In a first portion and a second portion of the IDT electrode, the first and second electrode fingers are arranged in a predetermined order. | 2021-12-09 |
20210384925 | MULTIPLEXER, RADIO-FREQUENCY MODULE, AND COMMUNICATION APPARATUS - Attenuation on a receive path side in a pass band of a second filter is improved in a case where a first filter, which passes a receive signal, is an acoustic wave filter. A multiplexer includes a common terminal, a first terminal, a second terminal, a first filter, and a second filter. The first filter is an acoustic wave filter disposed on a receive path connecting the common terminal and the first terminal and passes a receive signal. The second filter is disposed on a transmit path connecting the common terminal and the second terminal and passes a transmit signal. The multiplexer further includes an LC filter. The LC filter is disposed on the receive path connecting the common terminal and the first terminal. | 2021-12-09 |
20210384926 | RADIO-FREQUENCY MODULE AND COMMUNICATION DEVICE - A radio-frequency module includes a module substrate; a power amplifier; a first switch connected to an input terminal of the power amplifier; a second switch connected to an output terminal of the power amplifier; and a switch control circuit that controls the first switch and the second switch. The first switch, the second switch, and the switch control circuit are included in a semiconductor IC being integrated into a single chip. The power amplifier and the semiconductor IC are mounted on or above the module substrate. When the module substrate is viewed in a plan view, in the semiconductor IC, the switch control circuit is disposed between the first switch and the second switch. | 2021-12-09 |
20210384927 | RADIO-FREQUENCY MODULE AND COMMUNICATION DEVICE - Provided is a radio-frequency module that includes a module substrate having first and second main surfaces on opposite sides of the module substrate, a resin member that covers the second main surface and includes a first groove and the second groove, a plurality of post electrodes that include a first post electrode and the second post electrode, that are arranged on the second main surface, and that penetrate through the resin member, and a semiconductor component that is arranged between the first post electrode and the second post electrode on the second main surface and that includes a surface that is not covered by the resin member. The first groove is arranged between the first post electrode and the semiconductor component. The second groove is arranged between the second post electrode and the semiconductor component. | 2021-12-09 |
20210384928 | DEVICE AND METHOD OF COMPENSATING FOR NONLINEARITY OF POWER AMPLIFIER - Systems and methods are described to perform wireless communication. The device includes a pre-distortion circuit configured to pre-distort an input signal based on a parameter set including a plurality of coefficients and generate a pre-distorted signal, a power amplifier configured to amplify the pre-distorted signal and generate an output signal, and a parameter obtaining circuit configured to perform an iterative approximation operation based on the output signal and the pre-distorted signal, which change over time, according to an indirect training structure configured to minimize a difference between an intermediate signal obtained based on the output signal and the pre-distorted signal, and obtain the parameter set. | 2021-12-09 |
20210384929 | HUMAN BODY COMMUNICATION RECEIVER AND OPERATING METHOD THEREOF - Disclosed are a human body communication receiver and an operating method thereof, which may effectively remove low frequency noise. The human body communication receiver according to the present disclosure includes a receiving electrode, a virtual electrode, a filter circuit that is connected between the receiving electrode and the virtual electrode, and removes low frequency noise from a signal received through the receiving electrode to generate a high frequency signal, a low frequency reconstruction circuit that is connected to a rear end of the filter circuit and reconstructs a low frequency baseband signal by rectifying the high frequency signal, and an amplifying circuit that is connected to a rear end of the low frequency reconstruction circuit, and amplifies the low frequency baseband signal. | 2021-12-09 |
20210384930 | RADIO APPARATUS, SIGNAL DETECTION METHOD, NON-TRANSITORY COMPUTER READABLE MEDIUM, AND RADIO COMMUNICATION SYSTEM - A radio apparatus capable of reducing the amount of calculation required to suppress an interference signal is provided. A radio apparatus ( | 2021-12-09 |
20210384931 | WIDEBAND RECEIVERS AND METHODS OF OPERATION - A receiver can include a first set of one or more amplifier stages configured to amplify input signals in a plurality of communication bands. The receiver can further include a second and third set of one or more amplifier stages. The second set of one or more amplifier stages can be configured to selectively receive the input signals in the plurality of communication bands amplified by the first set of one or more amplifier stages and to amplify one or more input signals in a first one of the plurality of communication bands. Alternatively, the third set of one or more amplifier stages can be configured to selectively receive the input signals in the plurality of communication bands amplified by the first set of one or more amplifier stages and to amplify one or more input signals in a second one of the plurality of communication bands. A first set of one or more mixers can be configured to receive the input signals in the first communication band amplified by the second set of one or more amplifier stages, to receive one or more local oscillator signals for the first communication band, and to generate a baseband signal from a frequency difference of the signal of the first communication band and the one or more local oscillator signals for the first communication band. A second set of one or more mixers can be configured to receive the input signal in the second communication band amplified by the third set of one or more amplifier stages, to receive one or more local oscillator signals for the second communication band, and to generate a baseband signal of the second communication band. | 2021-12-09 |
20210384932 | TIME INTERLEAVED PHASED ARRAY RECEIVERS - A phased array receiver can include a plurality of antennas, a plurality of compound analog-to-digital converters and a beam former. The plurality of antennas can be arranged in an array. The plurality of compound analog-to-digital converters can include respective inputs coupled to respective ones of the plurality of antennas. Respective output of the plurality of compound analog-to-digital converters can be coupled to the beam former. Each compound analog-to-digital converter can include a plurality of time interleaved sub-analog-to-digital converters. Sampling by the sub-analog-to-digital converters can be random between the sub-analog-to-digital converters within respective compound analog-to-digital converters and random between the plurality of compound analog-to-digital converters. In addition, dynamic element mismatch using a random bitstream generator can be employed in digital-to-analog converters and analog-to-digital converters. | 2021-12-09 |
20210384933 | WEARABLE DEVICE ANTENNA - A wearable device includes a frame and a magnetic coupler opening formed in the frame. Wearable device further includes a processor, a memory accessible to the processor, and a very high frequency (VHF) radio transceiver for data transmission and reception and connected to the processor. Wearable device further includes a magnetic coupler connected to the VHF radio transceiver. Magnetic coupler includes a diamagnetic material shaped to form a VHF transmission or reception terminal that partially or fully aligns with the magnetic coupler opening. During transmission, magnetic coupler is configured to radiate transmitted VHF band radio modulated signals into tissue of the user. During reception, magnetic coupler is configured to absorb received VHF band radio modulated signals from the tissue of the user. | 2021-12-09 |
20210384934 | MRI COMMUNICATION DEVICE - The present invention discloses an MRI communication device, which is provided with a control room communication module and a scan room communication module. The scan room communication module includes a receiver, delivering the received first audio signals to the first air tube, while the control room communication module comprises a first sound device, through which the first audio signals are amplified and broadcast. The present invention realizes free bidirectional communication for the control room and the scan room, wherein the receiver can transmit the sound messages to the operator in the control room, making it possible for the technician to manage emergencies of making sounds in the scan room; the air tube is used to transmit audio signals, ensuring the proper operation during MRI exams and preventing them from the influence of the audio signal electromagnetic field from voice calls during MRI scans. | 2021-12-09 |
20210384935 | IN-VEHICLE TRANSMISSION SYSTEM - An on-vehicle transmission system includes: a path part configured to transmit a radio signal received from the antenna side, to the on-vehicle-device side; an on-vehicle-device-side circuit unit including a plurality of wireless circuits configured to receive radio signals in frequency bands different from each other; and a power supply circuit configured to supply power from the on-vehicle-device side to a circuit on the antenna side via the path part. The plurality of wireless circuits are connected in series via a transmission line configured to transmit a radio signal, and are respectively connected to the plurality of on-vehicle devices via the transmission line configured to transmit a radio signal. The on-vehicle-device-side circuit unit splits the radio signal received from the path part and provides resultant radio signals to the respective wireless circuits. | 2021-12-09 |
20210384936 | Cellphone Case With Integrated Game Apparatus - A cellphone case with integrated game apparatus for providing entertainment and anxiety relief includes a case body having a case front side, a case back side, a case left side, a case right side, a case top side, a case bottom side, a case inner face, and a case outer face. The case body secures a cellphone. A game enclosure is coupled to the case body. The game enclosure has an enclosure back side coupled to the case outer face on the case back side and a transparent enclosure front side coupled to the enclosure back side and defining an enclosure inside. A game is coupled within the game enclosure and comprises at least one movable game piece within the enclosure inside. | 2021-12-09 |
20210384937 | DEVICE CASE WITH INTEGRATED VISUAL AID SYSTEM - A device case with integrated visual aid system includes a smartphone case body having a bottom wall and a continuous sidewall for receiving and protecting a smartphone device. An elongated, hollow housing is positioned along the bottom surface of the case body and has an opening along one side. A visual aid device having at least one corrective or magnification lens is selectively positioned within the housing and transitions to an extended orientation. In one extended orientation the visual aid device is positioned perpendicular to the case and is located outside of the housing. In another extended orientation the visual aid device is positioned parallel to the case and is located outside of the housing. | 2021-12-09 |
20210384938 | CASE FOR A MOBILE DEVICE AND A MOBILE DEVICE - A case for a mobile device and a mobile device includes a first cartridge removably attached to the compartment, the first cartridge configured to hold a fluid, the first cartridge further including a dispensing mechanism fluidly configured to dispense the fluid through a nozzle disposed on an outer surface of the first cartridge. | 2021-12-09 |
20210384939 | METHOD FOR ANTENNA SELECTION FOR CONCURRENT INDEPENDENT TRANSMISSIONS VIA MULTIPLE ANTENNAS - A communication device has a controller that selects one of at least two second antennas for concurrent transmission with a first antenna. The controller monitors concurrent communication activity of a first and a second transmitter. Based on the concurrent communication activity, the controller identifies respective transmit power limits associated with intermodulation distortion (IMD) for the first antenna transmitting at the first transmit frequency and one of the at least two second antennas transmitting at the second transmit frequency. The controller identifies available total radiated power (TRP), respectively, for each of the at least two second antennas and connects the second transmitter to one of the at least two second antennas having the highest available TRP to optimize communication performance. | 2021-12-09 |
20210384940 | GENERATING A COMPOSITE SIGNAL WITH CODE DIVISION MULTIPLEXING (CDM) AND TIME DIVISION MULTIPLEXING (TDM) PILOTS - A user equipment (UE) may be configured to receive a signal in a time slot, wherein the signal includes a first reference signal, a second reference signal and data scrambled using a data scrambling sequence. Further, the first reference signal and the second reference signal are not scrambled using the data scrambling sequence. The second reference signal having a code sequence being a non-zero power of two in length and is time multiplexed with the data. The UE recovers the data of the received signal using the first or second reference signal. | 2021-12-09 |
20210384941 | SYSTEMS AND METHODS FOR AUTOMATED NETWORK CABLING INTEGRITY MONITORING - Systems and methods for automated network cabling integrity monitoring are provided. In one embodiment a system manager for a network that includes a network switch coupled to patching equipment comprises: at least one processor configured to execute software, the software comprising a network integrity monitor. The network integrity monitor controls a cable diagnostic test function to obtain a fault-distance measurement for a port of the switch. The network integrity monitor correlates the fault-distance measurement with network cable length information associated with the switch port to identify one or both of a network cable segment associated with the fault-distance measurement and a fault location. The cable length information is retrieved from a database. The network integrity monitor produces an output identifying of one or both of the network cable segment associated with the fault-distance measurement and the fault location to be displayed on a display device. | 2021-12-09 |
20210384942 | TRANSACTION MANAGEMENT IN AN NFC DEVICE - The present disclosure concerns a near-field communication routing method and device, in a device including: a near-field communication router ( | 2021-12-09 |
20210384943 | COMMUNICATION DEVICE, COMMUNICATION METHOD, AND STORAGE MEDIUM - A communication device communicates a physical (PHY) frame including a preamble and a data field. The preamble includes a Legacy Short Training Field (L-STF), a Legacy Long Training Field (L-LTF), a Legacy Signal Field (L-SIG), an EHT Signal Field (EHT-SIG-A), an EHT Short Training Field (EHT-STF), and an EHT Long Training Field (EHT-LTF), and the EHT-SIG-A includes a subfield indicating the number of spatial streams which are formed by the communication device and not less than one communication device different from the communication device. | 2021-12-09 |
20210384944 | VIRTUAL BEAM STEERING USING MIMO RADAR - Examples disclosed herein relate to a Multiple-Input Multiple-Output (MIMO) radar for virtual beam steering. The MIMO radar has a plurality of transmit antennas and a receive antenna array having a plurality of radiating elements. The MIMO radar also includes a digital signal processor (DSP) configured to synthesize a virtual receive array having N×M receive subarrays from the plurality of transmit antennas and the receive antenna array, where N is the number of transmit antennas and M is the number of receiving elements. Other examples disclosed herein relate to a method of virtual beam steering. | 2021-12-09 |
20210384945 | CHANNEL STATE INFORMATION FEEDBACK COMPRESSION - Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may identify, based at least in part on a codebook, a set of beams to feedback in a channel state information (CSI) feedback communication, and may identify one or more beam groups associated with the set of beams. The UE may select respective one or more transfer domain bases, from a plurality of transfer domain bases, for each beam group of the one or more beam groups, and may determine a plurality of values, for a plurality of bits, that represent beam group identification information associated with the one or more beam groups and transfer domain basis selection information associated with the respective one or more transfer domain bases. The may transmit, to a base station (BS), the plurality of bits in the CSI feedback communication. Numerous other aspects are provided. | 2021-12-09 |
20210384946 | HYBRID FD-MIMO: COMBINING CODEBOOK-BASED AND RECIPROCITY-BASED BEAMFORMING - A method, system and apparatus for realizing FD_MIMO in codebook-based transmissions. The method, system and apparatus include the combing of one or more horizontal codebooks and one or more vertical codebooks. A 2D beamformer for downlink transmissions is generated based on the combination of the one or more horizontal codebooks and one or more vertical codebooks. | 2021-12-09 |
20210384947 | BASE STATION AND WIRELESS TERMINAL APPARATUS AND TRANSMISSION METHOD - The present disclosure provides a method of generating codebook in a wireless communication system with multiple antenna arrays, as well as a wireless communication system, base station and terminal using the codebook for communication. The method comprises steps of: providing a basic codebook which contains multiple pre-coding matrices; and assigning phase offsets to certain pre-coding matrices in the basic codebook to form a codebook with phase offset. The feedback overhead from a client to a base station side is reduced and a good precision of feedback for multi-antenna array is kept by applying the method of generating codebook and using the generated codebook in the wireless communication system, base station and terminal. | 2021-12-09 |
20210384948 | USER EQUIPMENT CONFIGURED FOR INCREASED DATA RATE - Aspects of this disclosure relate to a pair of wireless communication devices wirelessly communicating with a network system in a coordinated manner. The wireless communication devices of the pair can be in communication with each other via a wireless peer-to-peer link. A primary wireless communication device can communicate a first part of a multiple-input multiple-output (MIMO) transmission via cellular communications and a second part of the MIMO transmission via the peer-to-peer link. This can enable the primary wireless communication device to communicate with the network system at a higher data rate and/or at a higher MIMO rank. | 2021-12-09 |
20210384949 | SOUNDING REFERENCE SIGNAL ANTENNA SWITCHING IN A DUAL CONNECTIVITY MODE - Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may determine a collision between one or more sounding reference signal (SRS) resources to be used for an SRS antenna switching procedure for a first radio access technology (RAT) and a signal of a second RAT based at least in part on a time domain overlap of transmissions of the one or more SRS resources and an active time of the signal of the second RAT, and modify a configuration of the SRS antenna switching procedure to mitigate the collision, wherein the modified configuration indicates that the one or more SRS resources are configured to be transmitted using antenna elements of the UE that are different than antenna elements of the UE to be used for receiving the signal of the second RAT. Numerous other aspects are provided. | 2021-12-09 |
20210384950 | ELECTRONIC DEVICE FOR SELECTING ANTENNA TO SUPPORT DESIGNATED RADIO COMMUNICATION AMONG PLURALITY OF ANTENNAS - An electronic device includes a first antenna configured to process a first radio frequency (RF) signal within a first frequency band; a second antenna spaced apart from the first antenna configured to process a second RF within a second frequency band different from the first frequency band; a first radio frequency front end (RFFE) and a second RFFE configured to process a third RF signal within a third frequency band different from the first frequency band and the second frequency band; a communication processor electrically connected to the first switch and the second switch; and a memory operatively coupled to the communication processor and configured to store performance information having, at least, a first value indicating an efficiency of the first antenna when performing a first radio communication, and a second value indicating an efficiency of the second antenna when performing the first radio communication. The memory is configured to store instructions that, when executed, cause the communication processor to transmit or receive a signal within at least one of the first frequency band, the second frequency band or the third frequency band, and select an antenna to support the first radio communication among the first antenna and the second antenna based on the performance information having the first value or the second value. The first RFFE and the second RFFE support the first radio communication within the third frequency band. | 2021-12-09 |
20210384951 | DATA TRANSMISSION METHOD AND APPARATUS - Disclosed are a data transmission method and apparatus. The method includes: receiving, by a terminal, a media access control (MAC) signaling sent by a base station; receiving, by the terminal, downlink control information (DCI) sent by the base station; searching for a preset mapping relationship by the terminal; determining, by the terminal, a target beam used by the target antenna panel to transmit data according to the target beam indication information corresponding to the target antenna panel; and transmitting data by the terminal with the base station via the target beam corresponding to the target antenna panel. | 2021-12-09 |
20210384952 | SELECTIVE NULL-FORMING ON ONE OR MORE BEAMS BASED ON NULL-FORMING PROCEDURE INFORMATION - In an aspect, a network device (e.g., BS, core network component, etc.) determines a self-interference measurement (SIM) configuration associated with null-forming at a wireless device (e.g., UE or BS), the null-forming associated with steering at least one receive beam of the wireless device and/or at least one transmit beam of the wireless device away from one or more external sources of self-interference. The network device transmits the SIM configuration to the wireless device. The wireless device performs at least one null-forming procedure in accordance with the SIM configuration. | 2021-12-09 |
20210384953 | Deep Learning Eigen-Beamforming - According to one example embodiment, a method is provided including initializing a first recurrent neural network with a first vector; iteratively training a weight matrix for one or more layers of the first recurrent neural network, wherein W(t) is the weight matrix of the layer of the first recurrent neural network corresponding to iteration t, and wherein W(t) is based at least on a channel covariance matrix; the first vector; and an output from a previous layer of the first recurrent neural network corresponding to iteration, t−1: and determining a first eigenvector based on a converged output from the first recurrent neural network, wherein the first eigenvector is used to perform beamforming for multiple input multiple output reception and/or transmission. | 2021-12-09 |
20210384954 | UPLINK BEAM RECONFIGURATION - A method comprises: determining, from an indication that an initial uplink beam between a user equipment and a network node is misaligned with respect to a downlink beam between the network node and the user equipment, at least one misalignment angle between the initial uplink beam and the downlink beam; and reconfiguring the uplink beam based on the misalignment angle to produce a reconfigured uplink beam. | 2021-12-09 |
20210384955 | METHODS AND APPARATUSES FOR PROVIDING ANTENNA PORT RELATED INFORMATION IN A COMMUNICATIONS NETWORK - The embodiments herein relate to method performed by a radio base station, a radio base station, a method performed by a UE and a UE for providing antenna port-related information to the radio base station in a communications network. The method performed by the UE comprises: receiving at least one DownLink (DL) beam from the radio base station; and reporting at least one Sounding Reference Signal (SRS) resource identification information for said at least one received DL beam, wherein the SRS resource identification information is associated with at least one antenna port of the UE receiving the corresponding DL beam. | 2021-12-09 |
20210384956 | ANTENNA CONFIGURATION PARAMETERS - This disclosure describes systems, methods, and devices related to antenna configuration parameters. A device may determine one or more antennas having one or more phases. The device may determine a first delay associated with a first antenna of the one or more antennas. The device may determine a second delay associated with a second antenna of the one or more antennas. The device may cause to send a frame to a first station device using the first antenna, wherein the frame comprises a first indication of the delay associated with the first antenna and a second indication of the delay associated with the second antenna. | 2021-12-09 |
20210384957 | DYNAMIC BEAM-SWITCHING LATENCY FOR BEAM REFINEMENT PROCEDURES - Certain aspects of the present disclosure provide techniques for beam refinement procedures including dynamic signaling and/or selection of beam-switching latency for beam refinement procedures using inter- and/or intra-antenna module beam switching. A method by a base station (BS) includes configuring a user equipment (UE) with one or more reference signal (RS) resource sets. Each of the one or more RS resource sets is associated with a first or second type of beam refinement procedure. The BS receives an indication from the UE of at least a first latency and a second latency, longer than the first latency. The BS dynamically selects, for each RS transmission using one of the configured resource sets, the first or second latency. The BS sends the RS transmissions at the selected latency with respect to downlink control information (DCI) triggering the RS transmissions for the first or second type of beam refinement procedure. | 2021-12-09 |
20210384958 | METHOD FOR OPTIMIZING USER EQUIPMENT WIRELESS LOCALIZATION USING RECONFIGURABLE INTELLIGENT SURFACES, RELATED DEVICE AND COMPUTER PROGRAM - A method for optimizing user equipment wireless localization using K reconfigurable intelligent surfaces reflecting signal(s) transmitted between a base station and the user equipment, the method including, whatever an a priori position of the user equipment selecting at least one reconfigurable intelligent surface to activate among the K reconfigurable intelligent surfaces, determining phases of elements of the at least one reconfigurable intelligent surface, by minimizing a predetermined cost function, depending on the a priori position, and accounting for a predetermined position error bound of the user equipment, while ensuring that at most K reconfigurable intelligent surfaces are selected, ensuring that the minimum Euclidian distance between two consecutive selected reconfigurable intelligent surfaces of a predetermined configuration, is strictly higher than a predetermined value limiting interference between additional multipath components generated by the at least one reconfigurable intelligent surface. | 2021-12-09 |
20210384959 | COMMUNICATION PROCESSING METHOD AND DEVICE, AND UNMANNED AERIAL VEHICLE - A method for communication processing includes obtaining a received power of each of two antennas in an antenna system of a mobile device; determining a difference between the received powers of the two antennas; determining a confidence level based on the difference, the difference being proportional to the confidence level; and determining a communication mode of the antenna system for communication based on the confidence level. | 2021-12-09 |
20210384960 | BEAM FAILURE RECOVERY METHOD AND DEVICE, AND TERMINAL DEVICE - The present disclosure provides a beam failure recovery method, a beam failure recovery device and a terminal device. The beam failure recovery method includes: judging whether it is necessary to delay initiating a BFR procedure when a beam failure occurs for the terminal device in a DRX inactive state; directly initiating, by the terminal device, the BFR procedure when it is unnecessary to delay initiating the BFR procedure; and determining an initiation time point for the BFR procedure when it is necessary to delay initiating the BFR procedure, and initiating the BFR procedure at the initiation time point. | 2021-12-09 |
20210384961 | METHOD FOR SENSING RF SIGNAL AND ELECTRONIC DEVICE FOR EXECUTING SAME - An electronic device, according to various embodiments of the present invention, is disclosed, comprising: an antenna array including a plurality of antenna elements disposed at intervals of a first distance; and a communication circuit electrically connected with the antenna array, wherein the communication circuit is configured to: supply power to a first antenna element and a second antenna element spaced apart from the first antenna element by a second distance among the plurality of antenna elements; form a beam comprising a main lobe and a grating lobe having a predetermined angle with the main lobe, by using the first antenna element and the second antenna element; and sense an RF signal incident from the outside by using the formed beam. Various other embodiments inferred from the present specification are also possible. | 2021-12-09 |
20210384962 | SYSTEM AND METHOD FOR DRONERAN CONTROLLER - Drone base stations (DBSs) create a radio access network (DRAN) that provides a quick on-demand coverage in areas either for lost coverage due to disasters (providing an emergency communications network (ECN)) or for specific military, governmental and IoT application needs. DRAN Control Functions may be modeled as Virtualized Network Functions (VNFs) to operate and control a flying DRAN that comprises a plurality of DBSs, providing near real-time configuration control functions. These unique functions apply to the combined drone and base station sub-components of each DBS. Unique configuration control actions are determining the number of drones, optimal 3D drone positioning, and the inter-drone graph topology by maximizing served cellular user clusters, while factoring in user slices, remaining drone flight times and RF interference. These functions can reside within a DRAN Controller for network-wide configuration control actions that precipitate across multiple DBSs, and within each DBS for node-specific configuration control actions. | 2021-12-09 |
20210384963 | Reconfigurable Wireless Radio System for Providing High Bandwidth Internet Access to Rural Areas Using a Limited Number of Frequencies and Adaptable Hardware - A communication system comprising a plurality of ground stations, each including a plurality of directional antennae arranged around a center axis, each directional antenna having a beam width associated with a particular area around the ground station; for each ground-based directional antenna, at least one software defined radio coupled to the directional antenna in such a manner as to enable the ground-based directional antenna to transmit radio frequency signals generated by the software defined radio and to provide to the software defined radio frequency signals received by the ground-based directional antenna; for each ground station, at least one control unit; wherein the control unit of a first ground station is configured to enable a transmission of a signal from a first directional antenna of the first ground station; wherein the control unit of a second ground station is configured to enable the reception of the signal from a first directional antenna of the second ground station; and wherein the second ground station has a link to the Internet. | 2021-12-09 |
20210384964 | SYSTEM AND METHOD FOR SINGLE-HOP SESSIONS IN SATELLITE SYSTEM - A system and method are disclosed for providing single-hop communication sessions in a satellite network. A timing offset is selected based on a system timing reference, and used to establishing a common timing reference. A synchronization signal is transmitted from a gateway to a satellite based on time slots aligned with the common timing reference, and subsequently forwarded from the satellite to all terminals managed by the gateway. Communication sessions are initiated by terminals using the common timing reference, and downlink transmissions from the satellite to the terminals are aligned with the synchronization signal. | 2021-12-09 |
20210384965 | Access Node Farm for End-to-End Beamforming - Methods and systems are described for providing end-to-end beamforming. For example, end-to-end beamforming systems include end-to-end relays and ground networks to provide communications to user terminals located in user beam coverage areas. The ground segment can include geographically distributed access nodes and a central processing system. Return uplink signals, transmitted from the user terminals, have multipath induced by a plurality of receive/transmit signal paths in the end to end relay and are relayed to the ground network. The ground network, using beamformers, recovers user data streams transmitted by the user terminals from return downlink signals. The ground network, using beamformers generates forward uplink signals from appropriately weighted combinations of user data streams that, after relay by the end-end-end relay, produce forward downlink signals that combine to form user beams. | 2021-12-09 |
20210384966 | Satellite for End to End Beamforming - Methods and systems are described for providing end-to-end beamforming. For example, end-to-end beamforming systems include end-to-end relays and ground networks to provide communications to user terminals located in user beam coverage areas. The ground segment can include geographically distributed access nodes and a central processing system. Return uplink signals, transmitted from the user terminals, have multipath induced by a plurality of receive/transmit signal paths in the end to end relay and are relayed to the ground network. The ground network, using beamformers, recovers user data streams transmitted by the user terminals from return downlink signals. The ground network, using beamformers generates forward uplink signals from appropriately weighted combinations of user data streams that, after relay by the end-end-end relay, produce forward downlink signals that combine to form user beams. | 2021-12-09 |
20210384967 | COMMUNITY BROADBAND LTE ACCESS OVER SATELLITE - A system and method for providing community-based broadband access are disclosed. The system is configured to provide private LTE based broadband access at remote areas that are served by satellite backhaul. The system is also configured to provide a community-based Wi-Fi like broadband service where users can purchase hourly, weekly, or monthly data packs as and when desired. The LTE base station, LTE core network, and satellite terminal included in the system are all deployed at the remote location to efficiently connect users to the internet over satellite backhaul. The system architecture further expands broadband reach for users in remote areas as compared to coverage with current satellite-based Community Wi-Fi hot spots, and provides an integrated backend system for LTE and Wi-Fi based access. | 2021-12-09 |
20210384968 | BEAM SPLITTING HAND OFF SYSTEMS ARCHITECTURE - A beam splitting hand off systems architecture and method for using the same are disclosed. In one embodiment, the method comprises: generating a first beam with a single electronically steered flat-panel antenna to track a first satellite; generating a second beam with the single electronically steered flat-panel antenna to track a second satellite simultaneously while generating the first beam to track the first satellite; and handing off traffic from the first satellite to the second satellite. | 2021-12-09 |