Class / Patent application number | Description | Number of patent applications / Date published |
330250000 |
WITH SEMICONDUCTOR AMPLIFYING DEVICE (E.G., TRANSISTOR)
| 3247 |
330149000 |
HUM OR NOISE OR DISTORTION BUCKING INTRODUCED INTO SIGNAL CHANNEL
| 270 |
330124000 |
WITH PLURAL AMPLIFIER CHANNELS (E.G., PARALLEL AMPLIFIER CHANNELS)
| 251 |
330127000 |
WITH CONTROL OF POWER SUPPLY OR BIAS VOLTAGE
| 246 |
330075000 |
SIGNAL FEEDBACK
| 124 |
330069000 |
SUM AND DIFFERENCE AMPLIFIERS
| 75 |
330010000 |
MODULATOR-DEMODULATOR-TYPE AMPLIFIER
| 72 |
330009000 |
WITH PERIODIC SWITCHING INPUT-OUTPUT (E.G., FOR DRIFT CORRECTION)
| 67 |
330192000 |
OUTPUT NETWORKS
| 42 |
330002000 |
WITH AMPLIFIER CONDITION INDICATING OR TESTING MEANS
| 40 |
330051000 |
COMBINED WITH AUTOMATIC AMPLIFIER DISABLING SWITCH MEANS
| 26 |
330185000 |
INPUT NETWORKS
| 24 |
330207000 |
MISCELLANEOUS
| 23 |
330144000 |
VARIABLE IMPEDANCE FOR SIGNAL CHANNEL CONTROLLED BY SEPARATE CONTROL PATH
| 16 |
330199000 |
WITH POWER OR BIAS VOLTAGE SUPPLY
| 15 |
330053000 |
WITH DISTRIBUTED PARAMETER-TYPE COUPLING MEANS
| 13 |
330151000 |
WITH AMPLIFIER BYPASS MEANS (E.G., FORWARD FEED)
| 10 |
330065000 |
INVOLVING STRUCTURE OTHER THAN THAT OF TRANSFORMERS PER SE
| 7 |
330007000 |
WITH CAPACITIVE AMPLIFYING DEVICE
| 7 |
330147000 |
PLURAL SIGNAL INPUTS
| 6 |
330005000 |
WITH SOLID ELEMENT WAVE PROPAGATING AMPLIFYING DEVICE
| 6 |
330043000 |
WITH TRAVELING WAVE-TYPE TUBE | 5 |
20120268201 | Very High Efficiency Flexible Travelling Wave Amplifier - A travelling wave tube amplifier includes: a travelling wave tube comprising a cathode, a helix, an RF input, an RF output, and a plurality of collectors, and an electronic power conditioner providing power supply and electrode polarization to said travelling wave tube, wherein said electronic power conditioner comprises flexibility control means allowing to adjust, via control commands sent through a databus, the helix to cathode voltage and the collector voltages. | 10-25-2012 |
20140118062 | RF CHANNEL AMPLIFICATION MODULE WITH INSTANTANEOUS POWER LIMITING FUNCTION - A radio frequency channel amplification module for communication satellite, comprises an input configured to convey an input radio frequency signal, an output configured to restore a pre-amplified output radio frequency signal intended to power a travelling wave tube amplifier that can be equipped with linearization means with predistortion, at least one first upstream gain control module arranged downstream of the input and one second downstream gain control module arranged downstream of the first upstream gain control module and upstream of any linearization means by predistortion. The channel amplification module also comprises an instantaneous power limiter intended to clip the peaks of the input radio frequency signals with a level exceeding a determined threshold value, the instantaneous power limiter being arranged in series between said first upstream gain control module and said second downstream gain control module. | 05-01-2014 |
20140253230 | Method for Operating a Traveling-Wave Tube Module - A method for operating a traveling-wave tube module of a communication satellite involves receiving of a high-frequency signal from an antenna of the satellite and determining that the high-frequency signal is to be amplified. The cathode current of a traveling-wave tube is increased to a predetermined operating value if the high-frequency signal is to be amplified and the high-frequency signal is amplified by the traveling-wave tube. | 09-11-2014 |
20140285259 | Method for Operating an Amplifier Module of a Satellite - A method for operating an amplifier module of a communication satellite involves establishing an undesired state of the amplifier module, storing state data, which indicate the undesired state, in a nonvolatile memory of the amplifier module, after the undesired state has been established, and deactivating the amplifier module after the storage of the state data. | 09-25-2014 |
20160006405 | AMPLIFIER DEVICE WITH AT LEAST ONE MICROWAVE TUBE - An amplifier device with at least one microwave tube, intended to be mounted on a satellite, includes a high voltage section directly connected to said microwave tube or tubes, a low voltage section, and a low voltage cabling assembly provided with low voltage connectors at the ends thereof connecting said low and high voltage sections. | 01-07-2016 |
330157000 |
INTERSTAGE COUPLING | 4 |
20090212860 | INTEGRATED CIRCUIT DEVICE AND ELECTRONIC INSTRUMENT - An integrated circuit device includes an amplifier circuit that includes first to Nth amplifiers that are cascaded and receives an input signal, an A/D converter that performs an A/D conversion process on a signal amplified by the amplifier circuit, first to Nth D/A converters that are provided corresponding to the first to Nth amplifiers and used to perform an offset adjustment of the first to Nth amplifiers, and a control circuit that sets an offset adjustment of the first to Nth amplifiers using the first to Nth D/A converters and a gain adjustment of the first to Nth amplifiers. | 08-27-2009 |
20090002069 | VARIABLE CIRCUIT, COMMUNICATION APPARATUS, MOBILE COMMUNICATION APPARATUS AND COMMUNICATION SYSTEM - A variable circuit that has a device that changes the mechanical state thereof and has a characteristic that is changed by a change of the mechanical state of the device, the variable circuit including: a controlling section | 01-01-2009 |
20120007673 | AMPLIFIER WITH WIDE GAIN RANGE - An amplifier with wide gain range includes a signal converting unit, a channel unit, and multiple amplifiers. The signal converting unit receives a gain modulation signal and accordingly outputs multiple modulation signals and multiple selection signals. Based on a level of the gain modulation signal, one of the selection signals is set at a first logic state and the other selection signals are at a second logic state. The channel unit has multiple channels, respectively controlled by the selection signals, so as to conduct the channel with at the first logic state. The amplifiers are connected in series. Output terminals of the amplifiers are also respectively output to the channels of the channel unit. The amplifiers are also controlled by the modulation signals of the signal converting unit. | 01-12-2012 |
20120169419 | Receiver with Wide Dynamic Range and Low Power Consumption - Some embodiments of the invention relate a circuit having a first and a second electrically connected voltage domains, respectively biased at different supply voltages (e.g., the first voltage domain biased at a low bias voltage and the second voltage domain biased at a second, different supply voltage). The apparatus further comprises a first DC current source coupled to one of the voltage domains (e.g., the first voltage domain having a low DC voltage potential) and a second DC current source coupled to the other voltage domain (e.g., the second voltage domain having a high DC voltage potential). The first and second DC current sources are configured to provide a DC cancellation current having a value that cancels a DC current generated by the potential difference between the first and second voltage domains. | 07-05-2012 |
330003000 |
WITH PLURAL DIVERSE-TYPE AMPLIFYING DEVICES | 4 |
20080204131 | VACUUM TUBE REPLACEMENT DEVICE, CIRCUIT AND SYSTEM - A system is provided for a solid-state implementation of a vacuum tube replacement device. The system may derive power from a target amplifier filament supply. The system may include active or passive functions for noise reduction, voltage isolation, servo biasing, and other functions. The vacuum tube replacement device is pin-for-pin compatible with standard vacuum tube circuit pin configurations. The vacuum tube replacement device system architecture is equally useful for non-vacuum tube systems such as audio amplifier circuits. | 08-28-2008 |
20100019840 | POWER AMPLIFIER - A power amplifier is provided with an AD converter pulse modulating an envelope signal extracted from a high frequency modulation signal; a switching amplifier amplifying an output signal from the AD converter; a low-pass filter removing high frequency noise from an output signal from the switching amplifier; a voltage control device controlling a power supply voltage of the switching amplifier; and a high frequency amplifier amplifying a phase-modulated signal having a constant envelope and having output from the low-pass filter as a power supply. The average power of the envelope signal to be inputted to the AD converter is permitted to be constant so that an input dynamic range of the AD converter can be most efficiently used. In addition the average power of the output signal from the power amplifier is adjusted by a power supply voltage to be supplied to the switching amplifier. | 01-28-2010 |
20100182080 | DC-OFFSET CANCELLED PROGRAMMABLE GAIN ARRAY FOR LOW-VOLTAGE WIRELESS LAN SYSTEM AND METHOD USING THE SAME - An amplifier circuit includes a transconductance amplifier at an input side of the amplifier circuit, a transimpedance amplifier connected to an output of the transconductance amplifier, and a voltage amplifier connected to an output of the transimpedance amplifier. The transconductance amplifier and the transimpedance amplifier form a low-impedance node at an interface thereof. A feedback circuit is connected between an output of the voltage amplifier and the low-impedance node between the transconductance amplifier and the transimpedance amplifier. The transconductance amplifier, the transimpedance amplifier, and the voltage amplifier form a main amplifier stage. The feedback circuit senses an imbalance in an output of the main amplifier stage, whereby a correction signal is integrated and negatively fed back to the low-impedance node between the transconductance amplifier and the transimpedance amplifier. | 07-22-2010 |
20130194037 | POWER AMPLIFIER, RADIO-FREQUENCY POWER AMPLIFICATION DEVICE, AND AMPLIFICATION CONTROL METHOD - The present invention allows amplification with low distortion and high efficiency. | 08-01-2013 |
330400500 |
PARAMETRIC AMPLIFIERS | 4 |
20090219086 | AMPLIFIER, AMPLIFYING METHOD, AND FILTER - An amplifier is provided which includes: a first variable capacitance device of which capacitance is variable, a second variable capacitance device of which capacitance is variable, electrically connected to the first variable capacitance device, and of an inverse conductivity type from the first variable capacitance device, and a first input unit for selectively inputting a bias voltage and a voltage signal to the first variable capacitance device and the second variable capacitance device, wherein, in the event that the bias voltage and the voltage signal are input to the first variable capacitance device and the second variable capacitance device, the capacitance of the first variable capacitance device and the second variable capacitance device is taken as a first value, and wherein the voltage signal is amplified with the capacitance of the first variable capacitance device and the second variable capacitance device as a second value smaller than the first value. | 09-03-2009 |
20120098594 | DISPERSION-ENGINEERED TRAVELING WAVE KINETIC INDUCTANCE PARAMETRIC AMPLIFIER - A traveling wave kinetic inductance parametric amplifier comprises a superconducting transmission line and a dispersion control element. The transmission line can include periodic variations of its dimension along its length. The superconducting material can include a high normal state resistivity material. In some instances the high normal state resistivity material includes nitrogen and a metal selected from the group consisting of titanium, niobium and vanadium. The traveling wave kinetic inductance parametric amplifier is expected to exhibit a noise temperature below 100 mK/GHz. | 04-26-2012 |
20160072462 | TRAVELING-WAVE AMPLIFIER - A traveling-wave amplifier includes a plurality of amplifier cells, an insulating layer, an input line, and an output line. The plurality of amplifier cells is provided on a semiconductor substrate. Each of the amplifier cells receives an input signal and generates a part of an output signal from the input signal. The insulating layer is provided on the semiconductor substrate. The input line is used to externally receive an input signal and to transmit the input signal to the amplifier cells respectively. The output line is used to transmit the output signal generated by the amplifier cells and to externally output the output signal. The thickness of the input line is smaller than the thickness of the output line, and the input line and the output line are provided on the same insulating layer. | 03-10-2016 |
20140266421 | NANOSCALE ELECTROMECHANICAL PARAMETRIC AMPLIFIER - This disclosure provides systems, methods, and apparatus related to a parametric amplifier. In one aspect, a device includes an electron source electrode, a counter electrode, and a pumping electrode. The electron source electrode may include a conductive base and a flexible conductor. The flexible conductor may have a first end and a second end, with the second end of the flexible conductor being coupled to the conductive base. A cross-sectional dimension of the flexible conductor may be less than about 100 nanometers. The counter electrode may be disposed proximate the first end of the flexible conductor and spaced a first distance from the first end of the flexible conductor. The pumping electrode may be disposed proximate a length of the flexible conductor and spaced a second distance from the flexible conductor. | 09-18-2014 |
330001000 |
WITH DIVERSE-TYPE ART DEVICE | 4 |
20090009243 | Methods and Apparatus for Controlling Leakage and Power Dissipation in Radio Frequency Power Amplifiers - A radio frequency power amplifier (RF PA) apparatus includes an RF PA and a waveform converter. The waveform converter is configured to receive a sinusoidal RF signal and generate a nonsinusoidal RF signal, which is used to drive an active device (e.g., a field effect transistor (FET) or bipolar junction transistor (BJT)) of the RF PA. The nonsinusoidal RF signal, which may comprise a square wave or a substantially-square wave signal, has signal characteristics that result in less leakage through the active device's input-output parasitic capacitance, compared to the leakage that would result if the sinusoidal RF signal was used to drive the active device. The leakage control methods and apparatus of the present invention may be advantageously employed in a variety of applications including, for example, RF polar transmitters. | 01-08-2009 |
20110279177 | DUPLEXER MODULE - A duplexer module prevents a transmission signal and a reception signal in the same band from interfering with each other. The duplexer module includes a transmission line, a reception line, and an antenna common line. In addition, the duplexer module includes a plurality of mounting electrodes arranged along the four sides of an outer edge of a mounting surface of a multilayer substrate. The fourth mounting electrode defining a monitoring port is disposed on a side different from a side on which each of the first mounting electrode defining a transmission port, the second mounting electrode defining a reception port, and the third mounting electrode defining an antenna port is disposed. The fourth mounting electrode defining the monitoring port is a mounting electrode used to output a signal of the monitoring line through which a portion of electrical power is transmitted from the transmission line. | 11-17-2011 |
20120274398 | RF AGC Control - Embodiments of the present invention may provide a signal processor with a wide gain range. The signal processor may comprise at least a discrete step gain stage and a continuous variable gain amplifier (VGA) stage. The discrete step gain stage may comprise a programmable gain amplifier (PGA) (e.g., low noise amplifiers | 11-01-2012 |
20130249628 | LOW NOISE CRYOGENIC AMPLIFIER - A radiofrequency amplifier includes a low noise amplifier ( | 09-26-2013 |
330063000 |
WITH MAGNETIC MEANS AMPLIFYING DEVICE | 3 |
20100321106 | AMPLIFIER - This invention relates to an amplifier, especially an amplifier having electrical and magnetic input excitations. | 12-23-2010 |
20130241636 | Magnetic Logic Units Configured as an Amplifier - An apparatus includes a circuit and a field line. The circuit includes a magnetic tunnel junction including a storage layer and a sense layer. The field line is configured to generate a magnetic field based on an input signal, where the magnetic tunnel junction is configured such that a magnetization direction of the sense layer and a resistance of the magnetic tunnel junction vary based on the magnetic field. The circuit is configured to amplify the input signal to generate an output signal that varies in response to the resistance of the magnetic tunnel junction. | 09-19-2013 |
20140176235 | Signal Absorption Circuit - This patent pertains to a new technique of maximizing the power transferred from a signal source. It accomplishes this by increasing the ratio of the electric to magnetic field and creating a high field impedance on the receiving end of the signal. | 06-26-2014 |
330150000 |
CASCADED SIMILAR AMPLIFYING DEVICE OF DIFFERENT CHARACTERISTICS | 3 |
20100073087 | Cable Television Network - There is provided a cable television network ( | 03-25-2010 |
20120319776 | DC VOLTAGE ERROR PROTECTION CIRCUIT - This document discusses among other things apparatus and methods for protecting circuit elements from harmful voltages. In an example, an apparatus can include an amplifier configured to receive an input signal and to provide an estimate of a first output signal, a peak detector to receive the estimate and to generate a comparison signal that is active when the amplified input signal exceeds a threshold value, and a timer configured to activate a second output signal if the comparison signal is active for at least a selected time period. The timer can include a first digital input and the selected time period can be set using a state of the first digital input. | 12-20-2012 |
20140167846 | AMPLIFIER, MOBILE COMMUNICATION DEVICE AND METHOD FOR AMPLIFYING - An amplifier includes an amplifying stage configured to provide an amplifier output signal based on a combination of a received amplifying stage input signal and a received amplified version of the amplifying stage input signal. | 06-19-2014 |
330044000 |
WITH ELECTRON BEAM TUBE AMPLIFYING DEVICE | 3 |
20110199155 | Controlling the Performance of a Thermionic tube - Controlling the performance of the thermionic tube ( | 08-18-2011 |
20140253231 | Method for Operating an Amplifier Module of a Satellite - A method for operating an amplifier module of a communication satellite involves saving at least one configuration parameter of the amplifier module in a non-volatile memory designed to store the configuration parameter when the amplifier module is not energized. The configuration parameter can be loaded from the non-volatile memory and used to configure the amplifier module. | 09-11-2014 |
20160181996 | TUBE AMPLIFIER ASSEMBLY HAVING A POWER TUBE AND A CAPACITOR ASSEMBLY | 06-23-2016 |
330116000 |
WITH BALANCED-TO-UNBALANCED COUPLING | 3 |
20120075016 | CALIBRATE OUTPUT MATCHING FOR CORRECT OUTPUT POWER - A calibration unit calibrates a power amplifier load impedance to achieve a nominal amplifier load impedance after the connection of one or more external elements, e.g., antenna, to improve the accuracy and effectiveness of output power calibration. The calibration unit comprises an adaptive impedance unit and a controller. The adaptive impedance unit includes first and second variable impedance elements connected between the amplifier and the external load, e.g., antenna. The controller independently calibrates the imaginary and real parts of the load impedance by respectively selecting first and second calibration values for the first and second variable impedance elements based on a reference voltage. More particularly, the controller selects calibration values for the first and second variable impedance elements from a plurality of impedance values based on a comparison between a reference voltage and the calibrated voltages produced at the output of the power amplifier responsive to the impedance values. | 03-29-2012 |
20120188010 | HIGH FREQUENCY POWER AMPLIFIER - A power amplifier includes an amplifying circuit, and first through third transmission lines. The amplifying circuit amplifies an input signal having a fundamental frequency to generate a first amplified signal and a second amplified signal whose phase is opposed to the first amplified signal. The first transmission line adds a first group of phases, different in correspondence with a frequency, to the first amplified signal by using a left-handed material to generate a first transmission signal. The second transmission line adds a second group of phases, different in correspondence with a frequency, to the second amplified signal by using a right-handed material to generate a second transmission signal. The third transmission line overlaps the first and the second transmission signals to generate an output signal. The first and the second group of phases include a phase difference configured to weaken a second harmonic and a third harmonic. | 07-26-2012 |
20130135042 | BROADBAND LINEARIZATION BY ELIMINATION OF HARMONICS AND INTERMODULATION IN AMPLIFIERS - An amplifier device includes an initial amplifier stage configured to receive a differential input signal at a first leg and a second leg; a final amplifier stage coupled to outputs of the initial amplifier stage, the final amplifier stage including a primary signal amplifier and an error amplifier in each of the first and second legs; and wherein an output of the error amplifier of the first leg is combined with an output of the primary signal amplifier in the second leg, and an output of the error amplifier of the second leg is combined with an output of the primary signal amplifier in the first leg. | 05-30-2013 |
330118000 |
INCLUDING A PUSH-PULL STAGE | 2 |
20100171552 | Push-Pull Linear Hybrid Class H Amplifier - Several push-pull linear hybrid class H amplifiers are disclosed. A split power rail provides a positive supply rail and a negative supply rail in response to a power supply control voltage. A push-pull amplifier stage is powered by the positive and negative supply rails. The amplifier stage receives an input signal and provides a corresponding amplified output signal. A power supply control circuit provides the power supply control voltage in response to the smaller of the positive and negative supply rails, and the input signal. | 07-08-2010 |
20140306755 | LOW INDUCTANCE TRANSFORMER - A transformer has first and second transformer windings including multiple differential ports. Each of the first and second transformer windings include a first transformer half-winding coupled to a first differential port of the differential ports. Each of the first and second transformer windings also include a second transformer half-winding coupled to a second differential port of the differential ports. Each of the first and second transformer windings is divided symmetrically at a common node to form the respective first and second transformer half-windings. The first transformer half-winding is configured to form one half of an inductance in each of the first and second transformer windings. The second transformer half-winding is configured to form another half of the inductance in each of the first and second transformer windings. The common node of the first transformer winding is configured to receive a supply voltage. | 10-16-2014 |
330117000 |
WITH UNBALANCED-TO-BALANCED COUPLING | 2 |
20110187451 | POWER AMPLIFIER - There is provided a power amplifier that can reduce power consumption by selectively turning a plurality of amplifiers on or off according to the power of a signal to be transmitted. A power amplifier according to an aspect of the invention may include: a first amplification section amplifying an input signal by a predetermined gain; a second amplification section having a plurality of amplification units re-amplifying the input signal, amplified by the first amplification section, by predetermined gains; and a switch section supplying or cutting off power to the plurality of amplification units according to an switching signal to selectively operate the plurality of amplification units. | 08-04-2011 |
20140145786 | SYSTEM FOR AMPLIFYING A COMMON RF ENERGY SIGNAL AND SWITCHING THE AMPLIFIED SIGNAL BETWEEN ONE OF TWO OUTPUTS - A RF input signal system and method switches the RF input signal amplified by an amplifier PA | 05-29-2014 |
330148000 |
PLURAL SIGNAL OUTPUTS | 2 |
20130214859 | SWITCH CONFIGURATION FOR DEFAULT-ON N-WAY ACTIVE SPLITTERS - An apparatus comprising an amplifier and a switch network. The amplifier may be configured to generate a plurality of output signals in response to an input signal. The switch network may be configured to provide (i) a first path when a power signal is not present and (ii) a second path when said power signal is present. The first path may activate a first of the plurality of output signals. The second path may activate all of the plurality of output signals. An impedance may be connected to the amplifier only when the first path is activated. | 08-22-2013 |
20160013764 | AMPLIFIER DEVICE AND WIRELESS COMMUNICATION DEVICE | 01-14-2016 |
330060000 |
HAVING MAGNETOSTRICTIVE-TYPE AMPLIFYING DEVICE | 1 |
20090322419 | AMPLIFYING APPARATUS USING MAGNETO-RESISTIVE DEVICE - An amplifying apparatus includes a magneto-resistive device which has a magnetic free layer, a magnetic pinned layer having a magnetic moment larger than that of the magnetic free layer, and an intermediate layer provided in between the magnetic free layer and the magnetic pinned layer. The amplifying apparatus has a first electrode layer provided in a magnetic free layer side of the magneto-resistive device, and a second electrode layer provided in a magnetic pinned layer side of the magneto-resistive device. The amplifying apparatus further includes a direct-current bias power-source for applying a direct-current bias to the magneto-resistive device, and a load resistor. The amplifying apparatus continually causes the change of a magnetization direction of the magnetic free layer to make the magneto-resistive device show negative resistance, and thereby amplifies an input signal. | 12-31-2009 |
330006000 |
WITH HALL EFFECT TYPE MEANS | 1 |
20100001791 | CURRENT AMPLIFYING ELEMENT AND CURRENT AMPLIFICATION METHOD - A current amplifying element that operates at a higher speed than conventional semiconductor devices is provided. An input current flows through an input current path | 01-07-2010 |
330143000 |
THERMALLY RESPONSIVE IMPEDANCE | 1 |
20130113558 | AMPLIFIER THERMAL MANAGEMENT - A thermally regulated amplifier system includes an amplifier unit, a temperature-sensing unit and a controller. The amplifier unit includes a power amplifier that has an adjustable gain function. The controller receives temperature readings from the temperature-sensing unit, computes the gain G(n) of the amplifier unit, and provides the computed gain of the amplifier G(n) to the power amplifier unit. | 05-09-2013 |
330011000 |
WITH D.C. REINSERTION CIRCUIT | 1 |
20100271120 | DISTRIBUTED THRESHOLD ADJUSTMENT FOR HIGH SPEED RECEIVERS - According to one general aspect, an apparatus may include a terminal configured to receive an analog input signal. In various embodiments, the apparatus may also include a multistage amplifier configured to amplify the analog input signal by an amount of gain. In some embodiments, the apparatus may include a distributed threshold adjuster interspersed between the stages of the multistage amplifier configured to adjust the DC voltage of the analog input signal to facilitate a decision by an analog-to-digital converter (ADC). In one embodiment, the apparatus may include the ADC configured to convert the amplified analog input signal to a digital output signal. | 10-28-2010 |