| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 455179100 |
Channel or station selection
| 99 |
| 455161100 |
Frequency scanning
| 54 |
| 455188100 |
Band selection
| 32 |
| 455193100 |
With antenna circuit tuning
| 28 |
| 455192100 |
With frequency control
| 23 |
| 455200100 |
With other control (e.g., volume, gain, bandwidth, etc.)
| 16 |
| 455154100 |
With indication of frequency, channel, or selector condition (e.g., tuning aid)
| 16 |
| 455196100 |
Including variation of local oscillator frequency
| 13 |
| 455160100 |
Plural tuning modes (e.g., manual and scanning, etc.)
| 8 |
| 455151100 |
Remote control of channel or station selection | 5 |
| 20140349599 | System And Method for Searching Stored Audio Data Based on a Search Pattern - A system for searching stored audio data is described. The system includes a memory configured to store audio data received from a radio receiver and a processing circuit. The processing circuit is configured to receive a search pattern, search the stored audio data for the search pattern, and provide audio data based on the search. | 11-27-2014 |
| 20080261546 | Method and Apparatus for Controlling Antenna Connectivity as a Function of Antenna Orientation - Methods and apparatuses presented herein control antenna connectivity for a wireless communication device as a function of rotation of a connector assembly plugged into the device, such as where an external antenna or cable includes the connector assembly. Assuming the device has a mating connector for the external antenna that changes the connections of internal and external antennas as a function of the connector mating depth, the method comprises configuring the wireless communication device and/or the external antenna with a mechanical feature that changes the mating depth between the device's and the antenna's mating connectors responsive to external antenna rotation. In one embodiment, a body portion of the external antenna retains the mating connector and includes a cam feature or other mechanical feature that engages an edge or surface of the device as the antenna is rotated, thereby pushing the antenna out from the device. | 10-23-2008 |
| 20090088107 | METHOD AND SYSTEM FOR UTILIZING UNDERSAMPLING AND/OR A DIGITAL DELAY LINE TO REMOVE OUT-OF-BAND BLOCKER SIGNALS - Methods and systems for wireless communication are disclosed and may include generating first and second signals by band-limiting a received wireless signal in two frequency ranges utilizing programmable bandpass filters. The first and second signals may be undersampled utilizing a clock signal. A delay of the second signal may be coarse-tuned by delaying the undersampling clock signal and may be fine-tuned by delaying the undersampled second signal utilizing a programmable delay line. The delayed, undersampled second signal may be subtracted from the undersampled first signal. A center frequency of the first range may be configured to a desired signal frequency, and a center frequency of the second range may be configured to a blocker signal frequency. The delay line may include an array of CMOS inverters, and may be fine-tuned utilizing programmable capacitors. The bandpass filters may include one or more coplanar waveguide or microstrip bandpass filters. | 04-02-2009 |
| 20120208481 | REMOTELY CONTROLLING SOUND SYSTEM IN ENCLOSURE - A sound reproducing system having at least a radio and left and right loudspeakers in a base enclosure is free of at least manually selectable volume controlling and radio tuning A remote controller includes at least manually selectable volume and tuning controls. | 08-16-2012 |
| 20140323069 | System and Method for Selecting Input Feeds to a Media Player - A system and method are provided for enabling a plurality of media feeds, such as internet radio stations, to be played through a standard media player, such as a radio receiving device, using the tuning or input selection controls of the media player to control the selection of which media feed to play. Identification signatures are added to channels and transmitted to the media player by transmitter. A controller captures the feedback of the media player and, if it detects one of the signature signals in the feedback, instructs the media feed selector to select a media feed which corresponds to the detected identification signature. The selected audio feed may then be transmitted to the media player on the corresponding channel for playback. | 10-30-2014 |
| 455170100 |
With mechanical or electromechanical selection | 4 |
| 20150105037 | ADAPTIVE MATCHING NETWORK - A system that incorporates teachings of the present disclosure can include, for example, an apparatus having a matching network adapted to reduce a magnitude of a signal reflection at a port of the matching network. The matching network can have one or more controllable variable reactive elements. A controller can be adapted to determine reflection coefficient information from incident and reflected waves sampled at the port of the matching network, and follow at least one cycle of a coarse tune process for generating one or more control signals to tune one or more reactances of the one or more controllable variable reactive elements. Additional embodiments are disclosed. | 04-16-2015 |
| 20150133068 | TUNABLE RF N-PATH FILTER - Methods and apparatus, including computer program products, are provided for tunable filters. In one aspect there is provided an apparatus. The apparatus may include a bandpass filter comprising a resistive-capacitive configuration of N-path filters tunable to a first center frequency based on at least a first clock frequency; a notch filter comprising a capacitive-resistive configuration of N-path filters tunable to a second center frequency based on at least a second clock frequency; and a combiner coupled to the bandpass filter and the notch filter to combine a bandpass output signal provided by the bandpass filter and a notch output signal provided by the notch filter, wherein the combiner outputs a combined output. Related apparatus, systems, methods, and articles are also described. | 05-14-2015 |
| 20100009645 | Controlling Fine Frequency Changes In An Oscillator - In one embodiment, the present invention includes a method for determining if a frequency control instruction would cause a first capacitor bank to reach a limit and adjusting the first capacitor bank in a first direction using a calibration value and adjusting a second capacitor bank in a second direction if the first capacitor bank would reach the limit. Furthermore, the calibration value may be calculated and stored in accordance with other embodiments. In such manner, small changes in capacitance and correspondingly small changes in frequency may be effected. | 01-14-2010 |
| 20140018024 | Sliding Method and Device for Tuning Radio Stations - The invention relates to a sliding method and device for tuning radio stations and, more particularly, to the sliding method and device using the car audio touch panel for tuning radio stations and fine tuning frequency by the finger. The device includes a radio module, a CPU and a touch panel. The touch panel includes a touch operation area and a frequency display area. By the device consisted of the above components, a control method is provided to tune radio station and fine tune frequency by using the sliding directions of the finger. | 01-16-2014 |
| 455195100 |
Variable voltage or current tuning | 2 |
| 20080318538 | Simplified High Frequency Tuner and Tuning Method - A disclosed method tunes a signal from a channelized spectrum having a predetermined channel spacing. A signal of interest having a predetermined maximum bandwidth is mixed with a local oscillator signal, which has a frequency that is an integer multiple of the channel spacing or one-half of a channel spacing displaced from an integer multiple of the channel spacing. The local oscillator signal is selected to frequency translate the signal of interest to within a near-baseband passband whose lower edge is spaced from DC by at least about the maximum bandwidth of the signal of interest. Problems associated with 1/f noise, DC offsets, and self-mixing products are avoided or substantially diminished. Other methods and systems are also disclosed. | 12-25-2008 |
| 20120135699 | SUPERHETERODYNE RECEIVER APPARATUS, SUPERHETERODYNE RECEIVING METHOD AND SEMICONDUCTOR INTEGRATED CIRCUIT FOR SUPERHETERODYNE RECEIVER APPARATUS - A superheterodyne receiver apparatus includes a tuning circuit for selecting and receiving a high frequency signal, the circuit being composed of a voltage-variable capacitance element and an inductance element; and a frequency converting unit for frequency converting the high frequency signal to an intermediate frequency signal. The superheterodyne receiver apparatus further includes an electrically rewritable read only memory; a calculation unit for calculating tuning voltage setting data, which are used to set the tuning circuit to a tuning voltage corresponding to a desired reception frequency, in accordance with a mathematical expression that uses the data stored in the memory as coefficients; and a D/A conversion unit for D/A converting the tuning voltage setting data to the tuning voltage. | 05-31-2012 |
| Entries |
| Document | Title | Date |
|---|
| 20080220735 | FREQUENCY SELECTIVE AMPLIFIER WITH WIDE-BAND IMPEDANCE AND NOISE MATCHING - This disclosure is directed to a frequency-selective low noise amplifier (LNA) with wide-band impedance and noise matching. The LNAS may include a closed loop circuit that supports wideband input matching. For example, the closed loop circuit may be configure to impedance match an input signal and provide a low noise figure. In addition, the LNA may include an open loop circuit that amplifies the input signal and provides a high output impedance. The open loop circuit may further include a selectivity filter that filters out frequencies outside a desired frequency band. The LNA may drive a tunable band-pass filter via the open loop circuit. | 09-11-2008 |
| 20080305757 | Broadcast Receiver for and Method of Providing Broadcast Channel Information - A broadcast receiver for and a method of providing broadcast channel information in which a broadcast search list is dynamically created and provided to a user, the broadcast receiver including: a tuner unit to tune a broadcast channel from a plurality of broadcast channels and to output a digital broadcast signal of the tuned broadcast channel; a broadcast signal processing unit to receive service information included in the broadcast signal output by the tuner unit; a storage unit to store the received service information and a control unit to dynamically create a broadcast search list based on the service information and to generate a screen providing the broadcast search list. Accordingly, it is possible to dynamically change a broadcast search list that provides search information regarding broadcast channels and to provide a user with the dynamically changed broadcast search list. | 12-11-2008 |
| 20080318536 | Simplified High Frequency Tuner and Tuning Method - A disclosed method tunes a signal from a channelized spectrum having a predetermined channel spacing. A signal of interest having a predetermined maximum bandwidth is mixed with a local oscillator signal, which has a frequency that is an integer multiple of the channel spacing or one-half of a channel spacing displaced from an integer multiple of the channel spacing. The local oscillator signal is selected to frequency translate the signal of interest to within a near-baseband passband whose lower edge is spaced from DC by at least about the maximum bandwidth of the signal of interest. Problems associated with 1/f noise, DC offsets, and self-mixing products are avoided or substantially diminished. Other methods and systems are also disclosed. | 12-25-2008 |
| 20090011732 | Tuning circuitry utilizing frequency translation of an impedance from a fixed-filter frequency response - A circuit and method for tracking a local oscillator signal frequency in an RF tuner, for tuning input RF signals. The RF tuner includes a frequency-dependent impedance generator that generates a frequency-dependent impedance at the input by rejecting unwanted input RF signals and shunt feeding back the desired signal to the input. The desired signal frequency is centered at the local oscillator signal frequency. The frequency-dependent impedance generator is used with an amplifier circuit to generate a tracking amplifier, the frequency-dependent amplifier gain of which tracks the local oscillator signal frequency. | 01-08-2009 |
| 20090036073 | Small signal identification device - A portable device that scans a subset of frequencies, such as the FM band, and displays to user the best carrier frequency for transmissions based on the received signal strengths. This device will find the carrier frequency that can provide the least amount of signal interference due to other transmitters in the area, and display the results to the user and/or reconfigures the receiver to tune to the best carrier frequency detected. | 02-05-2009 |
| 20090061801 | FM Tuner - Adjacent interference is reliably detected in an FM tuner. A receiving field strength judgment circuit ( | 03-05-2009 |
| 20090088106 | RADIO FREQUENCY FILTERING - Radio frequency filtering includes receiving a signal and detecting a change in the direct current (DC) offset of the signal or a change in a component that affects the DC offset of the signal. The filtering also includes setting a cut-off frequency of a high-pass filter to a first frequency value in response to the detected change and filtering the signal using the high-pass filter with the cutoff frequency set to the first frequency value. The filtering further includes adjusting the cutoff frequency of the high-pass filter from the first frequency value to a second frequency value while filtering the signal using the high-pass filter where the second frequency value is less than the first frequency value. | 04-02-2009 |
| 20090093226 | RECEIVING APPARATUS AND METHOD - The present invention provides a broadcast signal receiving apparatus and method both capable of reducing the influence of noise generated inside the receiving apparatus. A CPU transmits control information about an optimum TS output rate corresponding to a received channel signal to an OFDM-LSI, based on each output rate setting table stored in a memory in advance. The OFDM-LSI sets an optimum output rate and transmits a signal in accordance with the set optimum output rate. | 04-09-2009 |
| 20090111405 | Signal matching module for single or multiple systems - A signal matching module for single or multiple systems is disclosed, thereby enhancing the flexibility in using a communication module, and the performance of each subsystem. Further, a fine-tuning function is introduced into a selective matching circuit for the case that the inner matching components in the communication module cannot reach a required matching. Still further, a multi-stage matching circuit is used to reach a required Q-value (quality factor) for the matching circuit, thereby tuning the bandwidth. One of the preferred embodiments is to provide a unit cell which is used to connect with one or multiple subsystems, and a feeding point disposed outside the matching circuit to generate a better impedance matching and bandwidth. | 04-30-2009 |
| 20090111406 | Diversity reception in radio receiver - A method, apparatus, and computer program for controlling diversity reception in a radio receiver are provided. The radio receiver is configured to either activate or disable the diversity reception according to an application type of an application requesting transfer of data. | 04-30-2009 |
| 20090124224 | RADIO COMMUNICATION DEVICE, RECEIVER CONTROLLER OF A RADIO COMMUNICATION DEVICE, AND METHOD FOR SEARCHING FOR A RADIO CELL - Embodiments of the invention relate generally to a radio communication device, to a receiver controller of a radio communication device, and to a method for searching for a radio cell. In an embodiment of the invention, a method for searching for a radio cell is provided. The method may include scanning at least one frequency band of a first radio access technology, scanning at least one frequency band of a second radio access technology, wherein the at least one frequency band of the second radio access technology at least partially overlaps with the at least one frequency band of the first radio access technology, wherein at least one frequency sub-band of the first radio access technology is not scanned in the at least one frequency band of the second radio access technology. | 05-14-2009 |
| 20090124225 | TUNING CIRCUIT AND RADIO RECEIVER USING THE SAME - In a tuning circuit constituted by connecting a coil L and two capacitors C | 05-14-2009 |
| 20090131001 | SWITCH ARCHITECTURE - An apparatus may include a filtering network and a switch. From an amplified signal, the filtering network produces a filtered signal for wireless transmission in a frequency band. The switch includes a first terminal, a second terminal, and a switching element. The first terminal receives the filtered signal and the switching element selectively couples the first and second terminals. The filtering network also attenuates harmonics of the filtered signal that are generated by the switch. This attenuation establishes compliance with a harmonic emissions power limit associated with the frequency band. More particularly, this attenuation reduces at least one of the harmonics from a level exceeding the harmonic emissions power limit to a level within the harmonic emissions power limit. | 05-21-2009 |
| 20090143034 | Method for Tuning an RF Base-Band Circuit of a Receiver - A tuner for a wireless receiver is provided, which may include an input interface that is adapted to receive wireless signals, a mixer that is adapted to select a specific frequency from signals received at the input interface, and a controllable switch that is adapted to lead an output from the mixer towards a base-band unit of the receiver and to disconnect the output. The tuner may further include a controller which may be adapted to operate the controllable switch to disconnect the output of the mixer when the controller studies characteristics of the tuner and to reconnect the output of the mixer at other times. The studied characteristics may be associated with parasitic direct current voltages in the tuner, which may be associated with a low noise amplifier of the tuner, or programmable gain amplifier of the tuner or with both amplifiers. The controller may cause a compensation direct current voltage to be generated and applied to the mixer's output based on the ratio between programmed gain and actual/measured gain of the programmable gain amplifier. | 06-04-2009 |
| 20090149143 | METHOD AND APPARATUS FOR SELECTING A RADIO CHANNEL FOR TRANSMITTING AN AUDIO SIGNAL TO A RADIO LOCAL RECEIVER - A transmitter device ( | 06-11-2009 |
| 20090170456 | COHERENT TUNABLE FILTER APPARATUS AND WIRELESS COMMUNICATION FRONT-END CIRCUIT THEREOF - A front-end circuit with coherent tunable filters is provided. The circuit includes a first filter, an amplifier, and a second filter. The amplifier is coupled to the first filter, and the second filter is coupled to the amplifier. Furthermore, the amplifier is placed between the first and second filters. The first filter has a first tunable intermediate frequency, and is used to filter a received signal. The amplifier is used to amplify the output of the first filter. The second filter has a second tunable intermediate frequency, and is used to filter the output of the amplifier. The first and second intermediate frequencies have a coherent-tuning relation with each other. | 07-02-2009 |
| 20090191828 | METHOD AND SYSTEM FOR FLEXIBLE FM TUNING - A system for processing signals is disclosed and may include a single chip having an integrated Bluetooth radio and an integrated FM radio. The single chip may include at least one processor that enables selecting from a range of FM channels, a particular frequency for one of the FM channels based on an intermediate frequency (IF). The particular frequency may be selected so that it is an integer multiple of a channel spacing between neighboring allocated FM channels within the range of FM channels, and may be offset by at most one-half the channel spacing. The at least one processor may enable determining a frequency error of the selected particular frequency for the one of the FM channels. The at least one processor may also enable determining, whether the particular frequency includes an on-frequency channel based on the determined frequency error. | 07-30-2009 |
| 20090215414 | AM BROADCAST RECEIVING CIRCUIT | 08-27-2009 |
| 20090253391 | Frequency planning for switching devices for multi-band broadcast radios - Systems and methods are disclosed that use multiple DC-DC (direct-current-to-direct-current) regulators and configurable DC-DC regulators with respect to multi-band audio receivers in order to allow for the use of different DC-DC regulator switching clock signals for different audio broadcast bands. The systems and methods disclosed thereby help to alleviate interference problems typically caused by switching devices used in the DC-DC conversion process. The embodiments described are also applicable to switching power supplies run from alternating current (AC) power sources and to Class D amplifiers working with broadcast radios. | 10-08-2009 |
| 20090258619 | RADIO DEVICE WITH VIRTUALLY INFINITE SIMULTANEOUS INPUTS - A method, system, media, and apparatus are directed to radio recording. Radio stations are simultaneously recorded based on a radio parameter including a processing parameter, a memory usage or allocation, a recording status, or the like. The radio parameter is adapted for an individual station, some radio stations, or all radio stations. The processing parameter is adapted based on a processor usage. The memory usage is adapted based on a memory requirement of a station being recorded. A station may be suspended from recording based on a loss of a signal and resumed based on a resumption of the signal. An access to a radio content recorded while a signal was available may be provided, if the signal is unavailable. The plurality of stations may be prioritized. | 10-15-2009 |
| 20090311981 | TUNER MODULE - A tuner module adapted to demodulate a signal received by an antenna device is disclosed. An electric device is mounted on a circuit board. A die-casted chassis is made of a conductive material and monolithically has a tubular part. A signal transmitting member is coaxially disposed in the tubular part and constitutes a coaxial connector with the tubular part. The signal transmitting member is electrically connected to the electric device to transmit the signal received by the antenna device to the electric device. | 12-17-2009 |
| 20090325521 | Auto-Tuning System for an On-Chip RF Filter - A Radio Frequency Receiver on a Single Integrated Circuit (“RFSIC”) is described. The RFSIC may include a mixer, a phase-locked loop (“PLL”) in signal communication with the mixer, and an on-chip auto-tuned RF filter in signal communication with both the mixer and PPL, such that the same PLL simultaneously tunes the frequency of the VCO and the frequency response of the auto-tuned RF filter. | 12-31-2009 |
| 20100056086 | Simplified High Frequency Tuner and Tuning Method - A disclosed method tunes a signal from a channelized spectrum having a predetermined channel spacing. A signal of interest having a predetermined maximum bandwidth is mixed with a local oscillator signal, which has a frequency that is an integer multiple of the channel spacing or one-half of a channel spacing displaced from an integer multiple of the channel spacing. The local oscillator signal is selected to frequency translate the signal of interest to within a near-baseband passband whose lower edge is spaced from DC by at least about the maximum bandwidth of the signal of interest. Problems associated with 1/f noise, DC offsets, and self-mixing products are avoided or substantially diminished. Other methods and systems are also disclosed. | 03-04-2010 |
| 20100093293 | RF Circuit with Improved Antenna Matching - In one embodiment, RF front-end circuit includes a tunable matching network having an input coupled to an RF interface port, a directional coupler with a first connection coupled to an RF input of a mixer, a second connection coupled to an RF signal generation port, and a third connection coupled to an output of the tunable matching network. The directional coupler is configured to direct a signal from the RF signal generation port to the tunable matching network and to direct a signal from the tunable matching network port to the RF port of the mixer. The RF front-end circuit also has a tunable matching network control unit coupled to the tunable matching network. The control unit is configured to optimize an impedance match between the RF interface port and the output of the tunable matching network. | 04-15-2010 |
| 20100099371 | AUTOMATIC RADIO TUNING SYSTEM - This invention relates to a system for automatically tuning a radio receiver ( | 04-22-2010 |
| 20100144293 | POWER SUPPLY DEVICE, POWER CABLE, AND RECEPTION DEVICE - A power supply device includes: a power supply unit configured to output the power of a mainframe; and a power transmission cable configured to supply the power output from the power supply unit to the mainframe via a connector; with the power transmission cable including a mainframe side high-frequency cutoff portion disposed between the power supply terminal of the connector, a power supply unit side high-frequency cutoff portion, which is disposed on the power supply unit side at a predetermined length from the connector, configured to restrict the length of a portion serving as an antenna, a first transmission line used for power supply to the mainframe via the mainframe side high-frequency cutoff portion, and a second transmission line to be connected to a tuner of the mainframe via the connector. | 06-10-2010 |
| 20100167673 | METHOD AND SYSTEM FOR RF FRONT-END CALIBRATION SCHEME USING FRACTIONAL-N FREQUENCY SYNTHESIZED SIGNALS AND RSSI - Aspects of a method and system for an RF front-end calibration scheme using signals from a fractional-N frequency synthesized and received signal strength indicator (RSSI) are provided. A frequency synthesizer within a wireless receiver may generate a signal for dynamically modifying a gain in an integrated low-noise amplifier (LNA) for each selected receiver channel. The frequency-synthesized signals may be applied to at least one tunable load communicatively coupled to the LNA. The tunable load may be an input load or an output load. The signal generated by the frequency synthesizer may be sequentially applied to the input load and the output load. A logarithmic amplifier may generate an RSSI signal from the LNA output during the calibration process. The RSSI signal may be utilized for controlling a tunable load coupled to the LNA and optimize the tuning of the LNA in a desired channel by adjusting the tunable load. | 07-01-2010 |
| 20100190458 | METHOD OF TUNING RECEIVER HAVING TUNABLE AMPLIFIER WITH INTEGRATED TRACKING FILTER - A method of tuning a receiver includes: providing a tunable Low Noise Amplifier (LNA) having a plurality of LNAs and a plurality of LC loads coupled to the plurality of LNAs; selecting a desired LNA and a LC load corresponding to the desired LNA; isolating the desired LNA from the selected LC load; generating a local oscillation (LO) signal; routing the LO signal to the output of the tunable LNA to generate a filtered LO signal; determining a first signal power level of the filtered LO signal; changing the capacitance in the selected LC load and determining a second signal power level of the filtered LO signal; comparing the first filtered signal power level to the second filtered signal power level; and according to the comparison result, determining whether or not to adjust the capacitance in the selected LC load. | 07-29-2010 |
| 20100203855 | RECEPTION APPARATUS AND RECEPTION METHOD - A reception apparatus includes: a local oscillation section; first and second frequency mixing sections that mix received radio waves from AM and FM broadcast stations with an output signal from the local oscillation section to produce first and second intermediate frequency signals, respectively; an amplitude limiting section that limits an amplitude of the first or second intermediate frequency signal to a predetermined amplitude, and detects an intensity of the radio wave and a frequency offset from the signal; a multipath detecting section that extracts an amplitude change component in the signal amplitude-limited by the amplitude limiting section; and a control section that supplies a control signal for fixing the frequency to the local oscillation section when the intensity of the radio wave from the AM broadcast station and the frequency offset fulfill predetermined criteria, and when the amplitude change component is equal to or lower than a predetermined level. | 08-12-2010 |
| 20100203856 | RECEPTION MODULE AND RECEPTION APPARATUS INCLUDING THE SAME - A reception module includes a tuner for performing a tuning process on a received broadcasting signal, a signal processing device for performing a predetermined process on the broadcasting signal after the tuning process, a first memory which is used as a working region for the signal processing device, and a second memory which stores a program for operating the signal processing device, in which the individual elements are disposed on the same component side of a circuit board, and the tuner is disposed in a first space on the component side, the signal processing device is disposed in a second space that is located substantially in the middle on the component side, the first memory and the second memory are disposed in a third space on the component side, and the first space and the third space are located on the opposite sides with respect to the second space. The reception module is capable of suppressing influence of noise generated by the memory to operations of the tuner as much as possible with a main component group and without preventing downsizing as much as possible. | 08-12-2010 |
| 20100323648 | DEMODULATION DEVICE, RECEPTION DEVICE, AND DEMODULATION METHOD - A device mitigates reduction in reception performance caused by a harmonic component of a clock used for demodulation. The device includes a tuner performing frequency conversion by multiplying a received signal by a signal having a frequency corresponding to a frequency of a desired signal included in the received signal, and outputting the obtained frequency-converted signal; and a demodulation section generating a demodulated signal by demodulating the frequency-converted signal. The demodulation section operates in response to a master clock having a frequency corresponding to the frequency of the desired signal. | 12-23-2010 |
| 20110059708 | METHOD AND SYSTEM FOR TUNING AN ANTENNA USING INJECTION - A method for wireless communication includes adding a received DVB-H signal with a reference oscillator signal to generate an added DVB-H signal. The reference oscillator signal may be added at an input of a matching load. The matching load may be used to tune a wireless antenna that receives the received DVB-H signal based on a received signal strength indicator (RSSI) associated with the added DVB-H signal. The reference oscillator signal may be generated, and the generated reference oscillator signal may be amplified. The added DVB-H signal may be amplified subsequent to the adding. The RSSI associated with the added DVB-H signal may be determined. The tuning may occur during receiving of a preamble of a packet for the received DVB-H signal. | 03-10-2011 |
| 20110065401 | RECEIVING DEVICE AND CONTROL METHOD FOR RECEIVING DEVICE - A receiving device that can maintain a desired search condition is provided. | 03-17-2011 |
| 20110076971 | RECEIVING APPARATUS - A receiving apparatus discriminates RDS data containing traffic information corresponding to the vehicle's own position from RDS data of broadcasting stations searched for by frequency sweeping by a sub tuner front end | 03-31-2011 |
| 20110105067 | LOW NOISE AMPLIFIER - A wideband tuneable low noise amplifier that is capable of receiving signals over a wide range of frequencies, providing tuneable filtering to remove out of band interferer signals, and providing variable gain for a wide range of frequencies. To accommodate variable gain, the low noise amplifier has an amplifier stage comprising two gain stages, and the relationship between the gain stages is controlled responsive to changes in the voltage gain of an input stage. Linearity monitoring combined with Q-enhance may be employed to increase performance at low signal levels. | 05-05-2011 |
| 20110111712 | BROADCASTING RECEIVER - Provided is a broadcasting receiver (A), which includes: a tuner unit ( | 05-12-2011 |
| 20110136453 | Emergency Broadcast Receiver - Disclosed is an emergency broadcast radio receiver. The receiver can comprise a signal detector circuit adapted to detect, when powered, a predetermined emergency broadcast signal, and a timing generator circuit adapted to couple a battery to the signal detector circuit to periodically power the signal detector circuit. The receiver also can comprise a demodulator circuit adapted to demodulate, when powered, an audio signal modulated on a radio frequency signal at a tuning frequency. The signal detector circuit can be adapted, on detection of the predetermined emergency broadcast signal, to couple the battery to the demodulator circuit to power the demodulator circuit. Other embodiments are also disclosed. | 06-09-2011 |
| 20110151811 | Wireless Device With Selectable Antennas - Systems and methods for improving antenna performance and reducing antenna volume are disclosed herein. In one embodiment, a wireless communication device includes a first antenna, a second antenna, and a radio frequency receiver. The first antenna is tuned to support a first set of radio frequency bands. The second antenna is tuned to support a second set of radio frequency bands. The radio frequency receiver combines signals detected by the first and second antennas to produce a baseband signal. The second set of radio frequency bands is different from the first set of radio frequency bands. | 06-23-2011 |
| 20110159828 | Configurable Radio Front End - In one embodiment, the present invention includes a single chip radio tuner, which may be adapted within an integrated circuit (IC). The tuner may be provided with a configurable front end to receive and process a radio frequency (RF) signal via a signal path. This configurable front end may be differently controlled depending on a particular radio implementation in which the tuner is adapted. | 06-30-2011 |
| 20110159829 | Integrating Components In A Radio Tuner Integrated Circuit (IC) For A Tracking Filter - In one embodiment, the present invention includes a method for configuring a single chip radio tuner having a configurable front end, which may be adapted within an integrated circuit (IC). The method may include setting a controller of the tuner with configuration information for a radio in which the tuner is located. Then, control signals responsive to the configuration information can be sent to the configurable front end to configure the tuner. | 06-30-2011 |
| 20110183637 | MULTI-CARRIER-BASED TESTING - A device under test (DUT) may be connected to test equipment. The test equipment may include a multi-carrier signal generator and a host computer. The signal generator may provide a multi-carrier test signal that is fed to input-output devices of the DUT. The DUT may tune to a given radio channel on the test signal. The DUT may output an audio signal to the host computer to test for audio quality. Once desired measurements have been taken, the DUT may scan up or down to the next available radio channel on the test signal. The signal generator may not need to be reconfigured between scans, because the test signal contains multiple radio channels. The host computer may run a test program that directs a test program running on the DUT to perform the required tasks during testing. | 07-28-2011 |
| 20110230151 | FREQUENCY-SELECTIVE CIRCUIT WITH MIXER MODULE IMPLEMENTED FOR CONTROLLING FREQUENCY RESPONSE, AND RELATED SIGNAL PROCESSING APPARATUS AND METHOD - A frequency-selective circuit includes a signal input port, a signal output port, and a frequency response control block. The frequency response control block includes a mixer module and a filter module. The mixer module has a first port electrically connected to a signal path between the signal input port and the signal output port, a second port electrically connected to the filter module, and a local oscillator (LO) port. The mixer module operates according to an LO input received by the LO port. The filter module is electrically connected to the second port of the mixer module. | 09-22-2011 |
| 20110230152 | SIGNAL PROCESSING APPARATUS HAVING FREQUENCY-SELECTIVE CIRCUIT WITH MIXER MODULE IMPLEMENTED FOR CONTROLLING FREQUENCY RESPONSE AND RELATED METHOD THEREOF - A method of setting filtering characteristic of a signal processing apparatus includes following steps: configuring a first signal processing path, included in the signal processing apparatus and electrically connected to a signal input port of the signal processing apparatus, to have a first filtering characteristic; and configuring a second signal processing path, included in the signal processing apparatus and electrically connected between the signal input port and the first signal processing path, to have a second filtering characteristic different from the first filtering characteristic. When an input signal received at the signal input port includes a first signal component with a first frequency and a second signal component with a second frequency, most of the first signal component is processed by the first signal processing path, and most of the second signal component is processed by the second signal processing path. | 09-22-2011 |
| 20120003947 | Radio-frequency Processing Device and Method and Related Wireless Communication Device - A radio-frequency (RF) processing device, for a wireless communication device, is disclosed. The RF processing device comprises an antenna, an RF-signal processing module, a controller, for generating a control signal according to a band switching signal, and a matching adjustment module for adjusting an impedance between the antenna and the RF-signal processing module according to the control signal. | 01-05-2012 |
| 20120028593 | MOBILE RECEIVER APPARATUS - A mobile receiver apparatus includes first tuner | 02-02-2012 |
| 20120034889 | Sport Event Transducer - A sport event transducer having an output element that can emit a perceivable output in response to an event that relates to a sport team, such as for example by emitting an audio-visual output when a particular football team scores a touchdown. The transducer can be removable attached to a sport garment such as a cap or jersey, or can be an integral part of the garment. A transmission system remotely controls such transducers in response to sport team events by broadcasting an RF signal carrying team event messages, such as for example by transmitting an FM radio-data broadcast that carries a team event message embedded in the FM signal as RDS data. The sport event transducer receives and decodes such RF broadcast signals. If the transducer receives a team event message that relates to the transducer's affiliated team, the transducer's output element emits an audio and/or visual output signal in response to the message. | 02-09-2012 |
| 20120034890 | GEOGRAPHICALLY RELATED RADIO RECEPTION AND STATION SELECTION DEVICE AND METHOD - This invention relates a radio reception and station selection device related to geographical regions. It includes a tuning module and an AF output module, the tuning module interconnects the AF output module, the device further includes a positioning module, a display input module and a control module, each of the positioning module, the display input module and the tuning module connects the control module. This invention also provides a geographically related radio reception and station selection method. The device can display the station name, frequency, mode, and signal strength level of the local station signal source receivable on the display input module according to the Radio Regulations, and dynamically refresh with geographical changes. By using this device, listeners no longer need search for stations and store their names by themselves, it is a very convenient, time-saving device with an excellent visual operating system. | 02-09-2012 |
| 20120046006 | Selecting And Routing Sub-Signals From A Common Signal Path - According to certain embodiments, a system comprises a main transmission line, one or more piezoelectric filters coupled to the main transmission line, and one or more sub-signal transmission lines coupled to the one or more piezoelectric filters. The main transmission line communicates a main signal from an antenna to a main receiver. Each piezoelectric filter selects a sub-signal of a specific center frequency. Each sub-signal transmission line communicates a sub-signal to a sub-signal receiver. | 02-23-2012 |
| 20120071123 | Antenna System Monitor - A system is disclosed for monitoring of individual frequency channels in an RF signal band by configuration of the electronic processor to operate the tunable filter to select desired channel sub bands. Measurement of forward and/or reverse-propagating fields within the selected sub-bands may be performed and corresponding power levels recorded. The records may be used to provide monitoring signals, such as measures of forward and reflected power, as well as VSWR, return loss. Indications or alarms may be activated if any of these quantities, associated with any one or more channels, falls outside a predetermined acceptable operating range. | 03-22-2012 |
| 20120094623 | BROADBAND RECEIVE ONLY TUNER COMBINED WITH RECEIVE SWITCH - An antenna tuner unit (ATU) that provides broadband tuning is disclosed. The disclosed ATU includes a radio frequency (RF) switch circuit having an N number of switch inputs, wherein N is a natural number equal to 2 or greater. An N number of reactance elements are coupled in series between an RF input and one of the N number of switch inputs. Taps between adjacent pairs of the N number of reactance elements, wherein each of the taps is coupled to a corresponding one of the N number of switch inputs. The ATU further includes a capacitive element for each of the taps, wherein each capacitive element is coupled between a corresponding one of the taps and a voltage node. In at least one embodiment, each of the capacitive elements is made up of a programmable capacitor array. | 04-19-2012 |
| 20120220247 | Systems And Methods For Tunable Wavelet Transform Analysis Of A Signal - Methods and systems are disclosed for tuning first and second wavelet functions to resolve at least one component of a signal. A first characteristic frequency corresponding to a first scale band of interest is determined, and a first wavelet function is tuned to the first characteristic frequency in at least a region of a first scale band of interest. A second characteristic frequency corresponding to a second scale band of interest is determined, and a second wavelet function is tuned to the second characteristic frequency in at least a region of the second scale band of interest. A signal is transformed for the first and second wavelet functions using a continuous wavelet transform to create a transform signal, and a scalogram is generated based at least in part on the transformed signal. | 08-30-2012 |
| 20120220248 | MOBILE COMMUNICATION TERMINAL AND CONTROL METHOD - A mobile communication terminal that receives a signal from a plurality of access points and performs a wireless communication using any one of the plurality of access points, includes: a scanning unit configured to perform a scanning periodically to receive a signal including an identifier from respective access points; and a controller configured to compare a plurality of first identifiers received by a first scanning by the scanning unit with a plurality of previous identifiers received by a previous scanning performed before the first scanning, wherein, when a number of first identifiers which are identical to any of the previous identifiers is a predetermined number or more, the controller sets a specific period, as a period from the first scanning to a second scanning performed after the first scanning, to be longer than a previous period from the previous scanning to the first scanning. | 08-30-2012 |
| 20120258678 | ENHANCED POWER CABLE ARRANGEMENT APPARATUS AND METHOD OF REDUCING A COMMON-MODE INTERFERENCE SIGNAL - An enhanced power cable arrangement apparatus ( | 10-11-2012 |
| 20120264384 | TUNER MODULE AND A RECEIVING APPARATUS - Provided are a tuner module and a receiving apparatus capable of providing great degrees of variation and freedom to a layout in a main board, improving a degree of freedom of design, and achieving low cost. | 10-18-2012 |
| 20120282870 | SATELLITE RECEIVER, METHOD FOR OPERATING A SATELLITE RECEIVER, COMPUTER PROGRAM AND SATELLITE SYSTEM - A satellite receiver that is operable in a single cable system and that is configured to receiver satellite signals via an interface, comprises a controller configured to instruct the interface to perform a blind channel scan process over a predetermined frequency range to obtain measured spectrum signals and to change the predetermined frequency range until a desired frequency range has been measured. The satellite receiver further comprises a processing device configured to receive the measured spectrum signals, to process the measured spectrum signals to obtain a spectrum section and to concatenate the measured spectrum sections to obtain a spectrum. | 11-08-2012 |
| 20120282871 | RADIO WAVE RECEIVER - A radio wave receiver having an antenna for receiving a radio wave; a tuning unit for switching a frequency characteristic of the antenna in a stepwise fashion; an oscillation unit for oscillating a circuit section including the antenna and the tuning unit; a receiving process unit for executing a signal process by extracting a signal of a desired wave among received signals received by the antenna; and a search control unit for causing the oscillation unit to generate an oscillation signal at the circuit section and for searching, by switching a setting of the tuning unit, a setting condition of the tuning unit at which condition the oscillation signal is extracted by the receiving process unit; wherein the search control unit changes the number of minimum switching steps to be taken at a time or set pattern according to an adjustable range of the tuning unit. | 11-08-2012 |
| 20120302188 | TUNABLE MULTI-BAND RECEIVER - A tunable multi-band receiver supporting operation on a plurality of frequency bands is disclosed. In an exemplary design, the tunable multi-band receiver includes an antenna tuning network, a tunable notch filter, and at least one low noise amplifier (LNA). The antenna tuning network tunes an antenna (e.g., a diversity antenna) to a receive band in a plurality of receive bands. The tunable notch filter is tunable to a transmit band in a plurality of transmit bands and attenuates signal components in the transmit band. One LNA among the at least one LNA amplifies an output signal from the tunable notch filter. The tunable multi-band receiver may further include one or more additional tunable notch filters to further attenuate the signal components in the transmit band. | 11-29-2012 |
| 20130130634 | Method for Arranging Tuning Parameters to an RF Radio Module - A mechanism for providing tuning values to an RF radio module that, does not have memory for storing tuning values. Tuning values are requested from a server maintaining tuning values. The request is made by a device including the RF radio module for which the tuning values are requested. Requested tuning values are then received in accordance with the request. The received tuning values are stored in to a memory of the device including the RF radio module and applied to the RF radio module. | 05-23-2013 |
| 20130210377 | WIRELESS COMMUNICATION DEVICE - A wireless communication device ( | 08-15-2013 |
| 20130244600 | Integrating Components In A Radio Tuner Integrated Circuit (IC) For A Tracking Filter - In one embodiment, the present invention includes a method for configuring a single chip radio tuner having a configurable front end, which may be adapted within an integrated circuit (IC). The method may include setting a controller of the tuner with configuration information for a radio in which the tuner is located. Then, control signals responsive to the configuration information can be sent to the configurable front end to configure the tuner. | 09-19-2013 |
| 20130273864 | Systems and Methods for Providing Abbreviated Electronic Program Guides - Systems and methods for providing an abbreviated electronic program guide are provided. Some embodiments include receiving a radio signal that includes an audio content portion and an auxiliary information display portion, determining whether the vehicle is in operation, and in response to determining that the vehicle is not in operation, providing the auxiliary information display portion for display in the vehicle. In response to determining that the vehicle is in operation, some embodiments may be configured to create an altered auxiliary information by removing content from the auxiliary information display portion, provide the audio content portion for playback in the vehicle, and provide the altered auxiliary information for display in the vehicle, wherein the altered auxiliary information includes only a subset of features from the auxiliary information display portion. | 10-17-2013 |
| 20130273865 | Receiving Device And Method Thereof - A wireless signal receiving system, having an antenna, for receiving a wireless signal comprising a channel. The system also includes a tuner, coupling to the antenna, for converting the frequency of the wireless signal to generate a conversion signal. In addition, the system includes a processing unit, coupling to the tuner, for controlling the signal receiving direction of the antenna to detect the wireless signals of a first direction and a second direction, using the tuner to generate a first conversion signal and a second conversion signal so as to obtain a first reference value and a second reference value, and generating a control signal according to the first reference value and the second reference value to control the selected receiving direction of the antenna while the antenna is to receive the wireless signal of the channel. | 10-17-2013 |
| 20130288625 | Radio Receiver with Adaptive Tuner - A mobile radio receiver for a vehicle. The mobile radio receiver includes a tuner front-end section, a location data port, a sensor port, and a data processing unit. The location data port is used for receiving tuner location data. The sensor port is used for receiving one or more sensor signals. The data processing unit is operably connected with the tuner front-end section, with the location data port, and with the sensor port. The data processing unit further comprises predetermined tuner location data and predetermined relationship data sets for determining a set of tuner front-end section parameters based on the sensor signals. The mobile radio receiver provides an operational mode, a checking mode, a tuner parameter adjustment mode, and a tuner parameter application mode. | 10-31-2013 |
| 20140038535 | Dynamic Tuning in Dense Arrays of Electrically Small Elements - The purpose of dynamically tuning in dense arrays is to improve power received and signal quality. In traditional phased array the inherent design procedure is to design for good matching over the frequency and scan angle of operation. Typically this is done in the overall design based on a priori knowledge of the frequency, relative phasing and amplitude distribution of all the elements. With this a priori knowledge the design can be done based on known mutual coupling. | 02-06-2014 |
| 20140065993 | ADAPTIVE STEPPED GAIN AMPLIFIER SYSTEM AND METHOD - An adaptive stepped gain amplifier, for example for use in broadband receivers, has a step size which is dynamically compensated (for each received frequency) to cope with step error caused by frequency dependence of the amplifier performance. | 03-06-2014 |
| 20140141737 | ANTI-JAMMING SYSTEM - An anti-jamming system includes a tunable negative jamming signal feedback loop for feedback suppression of a received jamming signal. The system includes a zero IF phase locked loop (PLL) jamming signal receiver having a synchronous demodulator and a phase detector. A VCO is included in the PLL, as well as a phase detector and a loop filter. A replica jamming signal generator includes a tracking modulator with a baseband signal input coupled to an output of a synchronous demodulator in the receiver and a carrier input provided by the VCO. An output of the tracking modulator is negatively fed back to the input of the receiver to suppress the jamming signal in the received input. | 05-22-2014 |
| 20140148110 | ACCESSING RADIO CONTENT FROM A NON-RADIO SOURCE - Systems and methods are provided for accessing broadcast media items and segments from non-broadcast sources. In response to detecting that a user has not finished listening to a broadcast segment (e.g., a radio segment), an electronic device can automatically identify and access an alternate, non-broadcast source for the same broadcast segment (e.g., a corresponding podcast episode). Using the electronic device, a user can play back the segment from the non-broadcast source, starting playback at the last position of the broadcast segment when the user stopped listening to the broadcast. In some embodiments, the electronic device can update library counts (e.g., play counts and new/not new tags) based on media items and segments played back as part of a media broadcast. | 05-29-2014 |
| 20140315507 | Apparatus and Method for Detecting Co-Channels Signals - Apparatus and method for recognizing Global System for Mobile communication (GSM) signals are provided. The solution comprises obtaining position and timing information from a satellite positioning system; tuning to a frequency channel with GSM transmission; collecting a group of I/Q samples for the length of 12 GSM frames; performing peak detection using at least two peak detectors over the group of samples wherein the found peak values are the locations of synchronization bursts (SCH). For the found peaks, the timing information, carrier-to-noise ratio, in phase and quadrature values are determined. A group of I/Q samples for the length of 12 or 51 GSM frames are collected. From the found SCH, base station identification code BSIC, frame number and Broadcast Control Channel (BCCH) training sequence are determined. BCCHs corresponding to all SCH are decoded; and transmitting base stations identified. | 10-23-2014 |
| 20150094005 | RADIO DEVICE WITH VIRTUALLY INFINITE SIMULTANEOUS INPUTS - A method, system, media, and apparatus are directed to radio recording. Radio stations are simultaneously recorded based on a radio parameter including a processing parameter, a memory usage or allocation, a recording status, or the like. The radio parameter is adapted for an individual station, some radio stations, or all radio stations. The processing parameter is adapted based on a processor usage. The memory usage is adapted based on a memory requirement of a station being recorded. A station may be suspended from recording based on a loss of a signal and resumed based on a resumption of the signal. An access to a radio content recorded while a signal was available may be provided, if the signal is unavailable. The plurality of stations may be prioritized. | 04-02-2015 |
| 20160020517 | NON-STATIONARY MAGNETIC FIELD EMITTER, ITS CONNECTION IN SYSTEM AND DATA MODULATION METHOD - The emitter is intended to provide a contactless communication channel (particularly RFID/NFC) in miniature build space. The emitter has an oblong, at least partially ferrite core ( | 01-21-2016 |
