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Match Document Document Title
9042816 Methods and apparatus for improving NFC coil tuning based on proximity to a remote NFC device  
Aspects disclosed herein relate to improving tuning of a NFC coil for operation in one or more modes based on a distance between a NFC device and a remote NFC device. In one example, a NFC device...
9037103 MRC antenna diversity for FM IBOC digital signals  
A method for processing a radio signal includes: receiving a signal on two antennas; demodulating the signal using first and second independent signal paths that are synchronized by symbol number;...
9031523 Systems and methods for determining antenna impedance  
A method for measuring an impedance of an antenna includes generating, by a signal source coupled to the antenna, a radio frequency (RF) signal, applying the RF signal to a directional coupler,...
9026073 Device for receiving signals, antenna device and mobile terminal  
The disclosure discloses a device for receiving signals, which includes: equipment with lead wires configured to be reused as a receiving antenna to receive Frequency Modulation (FM) signals. The...
9026050 Communication circuit  
In a communication circuit, an RFIC includes an IO terminal and a control IC includes an IO terminal. A variable capacitance element includes control terminals, a capacitance element with a...
9020455 Power control system for a receiver chain in a transceiver  
A transceiver may include an antenna tuning control system operably associated with an antenna tuner to control the current power levels of the transmission signal and the receive signal. The...
9014645 Wireless communication device, method for controlling wireless communication device, program, and storage medium  
In a wireless communication device (10), adjustment means (matching controlling means (152)) changes a reactance of a matching section (17), determination means (calculation means (151), matching...
8996080 Radio-frequency device and wireless communication device  
A radio-frequency (RF) device for a wireless communication device includes a grounding element, an antenna, a first DC blocking element for cutting off a direct-current (dc) signal route between a...
8976762 Radio frequency architecture for spectrum access networks  
Radio frequency (RF) architectures for spectrum access networks are provided. Embodiments of the invention generally provide a radio frequency (RF) architecture for customer premise equipment...
8942654 System and method for controlling antenna tuning using an auxiliary channel of an embedded display port interface  
An information handling system includes a capacitor, an antenna, a wireless wide area network card, an embedded display port interface, and a digital-to-analog converter. The capacitor has a...
8923789 Method of diminishing the minimum range of operation of a communication link  
A portable electronic device comprises a wireless receiver unit for receiving a wireless signal from a transmitting device, the wireless receiver unit comprising an antenna receiving an...
8918070 Frequency tuning for LC circuits  
Apparatus and methods are disclosed related to tuning a resonant frequency of an LC circuit. In some implementations, the LC circuit can be embodied in a low noise amplifier (LNA) of a receiver....
8909182 Physically small tunable narrow band antenna  
A narrow band, tunable antenna uses a series of small inductors wired in series to produce different resonant frequencies from a single antenna across a wide frequency spectrum. Radio Frequency...
8897734 Standing wave ratio meter for integrated antenna tuner  
The invention provides circuitry integrated into a silicon chip that measures aspects of an RF signal on a transmission line in order to provide data that is ultimately used by an antenna tuner...
8897733 Dynamic tuning and calibration of antenna with on-chip array of capacitors  
Methods and systems for dynamically tuning and calibrating an antenna using on-chip digitally controlled array of capacitors are disclosed. Aspects of one method may include dynamically tuning a...
8886145 Antenna adjustment circuit, antenna adjustment method, and communication unit  
An antenna adjustment circuit includes: a drive section that inputs an alternating drive signal to a variable capacitance connected to an antenna; and a control section that sets a capacitance...
8880015 Dynamic impedance matching in wireless communications  
Aspects of a method and system for LNA adjustment to compensate for dynamic impedance matching are provided. In this regard, an antenna matching network may be configured to maximize received...
8868014 Immersible UHF antenna with low power auto tuning system  
An antenna is provided having a good matching characteristics when immersed in a fluid such as saline water, oil, or other liquids (“the phantom liquid”). In some embodiments, the antenna provides...
8831546 MRC antenna diversity for FM IBOC digital signals  
A radio receiver includes a first signal path including a first tuner configured to receive a first signal from a first antenna, and a first demodulator configured to demodulate symbols from an...
8824982 Time-variant antenna enabled by switched capacitor array on silicon  
A time-variant antenna is disclosed that uses a switched capacitor array in silicon to improve the performance and integration options of the time-variant antenna. Parasitic effects of the...
8818308 Multi-tuner apparatus for receiving RF signals  
A multi-tuner apparatus comprises a splitter (S) for received RF signals. The splitter has a splitter output (U) for connection to a plurality of tuners. To reduce signal degradation and...
8811911 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...
8792937 Computing device with configurable antenna  
A computing device with a configurable antenna. The antenna is configured through a switching circuit operating under software control. Operating characteristics of the antenna are configured...
8781417 Hybrid techniques for antenna retuning utilizing transmit and receive power information  
An embodiment of the present invention provides an apparatus, comprising a transceiver, an antenna tuner connecting said transceiver to an antenna, a power sensor adapted to acquire measurements...
8781522 Adaptable antenna system  
The invention utilizes small, narrow-band and frequency adaptable antennas to provide coverage to a wide range of wireless modes and frequency bands on a host wireless device. The antennas have...
8774743 Dynamic real-time calibration for antenna matching in a radio frequency receiver system  
Real-time calibration of a tunable matching network that matches the dynamic impedance of an antenna in a radio frequency receiver system. The radio frequency receiver system includes two...
8761705 Antenna, communication module, communication system, position estimating device, position estimating method, position adjusting device, and position adjusting method  
An antenna includes: a differential linear antenna that includes two antenna elements, which have a predetermined length, arranged so as to be separated from each other for to be symmetrical with...
8712355 Antenna tuning on an impedance trajectory  
A method, transceiver integrated circuit (IC), and communications device for generating antenna tuning states derived from a pre-established trajectory of tuning states to adjust a detected signal...
8699980 Car audio system including an integrated module comprising a tuner unit and an active antenna  
A car audio system having a tuner unit and an active antenna integrated into a single module, the car audio system being connected to an antenna for a vehicle and receiving broadcast signals, is...
8699965 Low loss quarter wave radio frequency relay switch apparatus and method  
A low loss quarter wave Radio Frequency (RF) relay switch apparatus and method provides more efficient transmission of RF energy to downstream antenna switching elements in an antenna switching...
8682258 High-frequency circuit, high-frequency device, and communication apparatus  
A high-frequency circuit comprising a switch circuit connected to an antenna terminal, first and second diplexer circuits connected to the switch circuit, first and second power amplifier circuits...
8660500 Method and system for a voltage-controlled oscillator with a leaky wave antenna  
Methods and systems for a voltage-controlled oscillator (VCO) with a leaky wave antenna are disclosed and may include transmitting wireless signals via one or more leaky wave antennas in one or...
8655410 Beam wobbling for increased downlink coverage and capacity  
A method and apparatus for reducing signal interference within a cellular radio system to increase both coverage and capacity. The method and apparatus include altering the direction of beams...
8639203 Antenna system comprising an electrically small antenna for reception of UHF band channel signals  
An antenna system for reception of channel signals form the UHF band by a receiver, including an electrically small antenna and, connected between the port connected to the antenna and that of the...
8611829 Tunable filter feedback to control antenna switch diversity  
A method, antenna switching integrated circuit (IC), and communications device that connect a transmitter to a selected antenna to propagate at least one transmission signal to the selected one of...
8594584 Method and apparatus for tuning a communication device  
A system that incorporates teachings of the present disclosure may include, for example, a tuning system for a communication device having an antenna, where the tuning system includes at least one...
8588717 Headphone antenna for radio communications device  
A radio communications device includes a headphone assembly, which includes at least one aural speaker or transducer and a headphone cable functioning as an antenna and providing electrical...
8583065 Digitally controlled antenna tuning circuit for radio frequency receivers  
A novel digitally controlled antenna tuning circuit that enables the implementation of low cost, wideband tuning circuits for antennas in receive applications. The invention is operative to switch...
8571503 Signal receiving methods and devices  
A signal receiving method for receiving a signal within a predetermined bandwidth for a broadcasting system using an embedded antenna is provided, comprising: obtaining an antenna bandwidth of the...
8509718 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...
8509720 Dynamic impedance matching with LNA  
Aspects of a method and system for LNA adjustment to compensate for dynamic impedance matching are provided. In this regard, an antenna matching network may be configured to maximize received...
8494601 Communication device  
The communication device includes: a first body; a second body; a connecting portion that connects the first body and the second body, so as to be capable of switching between a closed state in...
8489109 Portable wireless device  
A mobile wireless device enables effective use of space in a case while reducing degradation of antenna gain and maintaining communication quality even if a plurality of antennas having different...
8472904 Antenna with integrated tuning detection elements  
In various embodiments, systems and methods for automatically tuning an antenna to a desired frequency utilize a tuning detection element that sends or receives a signal in accordance with one...
8472905 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...
8463200 Wireless communication apparatus  
In a wireless communication apparatus, when a first switch electrically connects a second antenna to an impedance matching circuit and a second switch electrically connects a first antenna to a...
8457569 Hybrid techniques for antenna retuning utilizing transmit and receive power information  
An embodiment of the present invention provides an apparatus, comprising a transceiver, an antenna tuner connecting said transceiver to an antenna, a power sensor adapted to acquire measurements...
8457697 Antenna switching arrangement  
An antenna arrangement comprising an input/output connection and a first and a second tuning network with different transfer functions. The arrangement additionally comprises an antenna and a...
8437314 Radio frequency architecture for spectrum access networks  
Radio frequency (RF) architectures for spectrum access networks are provided. Embodiments of the invention generally provide a radio frequency (RF) architecture for customer premise equipment...
8437716 Broadcast receiver and method for regulating the same  
A broadcast receiver includes a tuner circuit and a demodulator circuit. The tuner circuit tunes a radio frequency (RF) signal to output an intermediate frequency (IF) signal. The demodulator...

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