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Match Document Document Title
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,...
9026062 Method and apparatus for managing operations of a communication device  
A system that incorporates teachings of the present disclosure may include, for example, a communication device having a controller to provision a matching network that controls one or more...
9020447 Electronic devices, methods, and computer program products for making a change to an antenna element based on a power level of a transmission power amplifier  
A method of operating an electronic device includes providing a plurality of antenna elements, determining that a change is to be made to at least one of the plurality of antenna elements, and...
9020449 Software-defined radio with broadband amplifiers and antenna matching  
Mobile phone handsets include a CMOS front end configured for operating across multiple transmit and receive frequencies. The front end typically includes multiple receivers, each covering a...
9002306 Providing multiple inductors for a radio tuner  
A method includes receiving a desired channel indication in a radio tuner, determining a band of operation in which the channel is located, and if the channel is within a first band coupling...
9002295 SAW-less receiver including an if frequency translated BPF  
A SAW-less receiver includes an FEM interface module, an RF to IF receiver section, and a receiver IF to baseband section. The RF to IF receiver section includes a mixing module, a mixed buffer...
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...
8971826 Antenna element as capacitive proximity/touch sensor for adaptive antenna performance improvement  
A method and communications device for providing antenna tuning to compensate for antenna de-tuning caused by a presence of an object detected using an antenna element within a capacitive touch...
8942657 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...
8862072 Information handling system tunable antenna for wireless network adaptability  
A tuning circuit disposed between an antenna and wireless network interface card selectively adjusts transmissions from the antenna to plural frequency bands, each band associated with wireless...
8849347 Method and system for a transceiver for bluetooth and near field communication (NFC)  
Frequency conversion methods and systems are disclosed for a transceiver for personal area networks (PAN) and near field communication (NFC). NFC data may be received and/or transmitted via the...
8843084 Antenna diversity apparatus  
Apparatus for providing antenna diversity for a radio transmitter/receiver (TR) comprising measuring means for measuring relative received signal strengths in a plurality of antennas in a...
8818309 Providing multiple inductors for a radio tuner  
A method includes receiving a desired channel indication in a radio tuner, determining a band of operation in which the channel is located, and if the channel is within a first band coupling...
8744386 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...
8698581 Automatically controllable, frequency tunable filter  
A frequency tunable filter is disclosed. The disclosed filter comprises a filter unit having a sliding member so as to be capable of tuning a frequency band of a frequency signal being filtered; a...
8660604 Method and system for a transceiver for bluetooth and near field communication (NFC)  
Frequency conversion methods and systems for a transceiver for Bluetooth and near field communication. NFC data may be received and/or transmitted via the NFC radio and Bluetooth data may be...
8620247 Adaptive impedance matching module (AIMM) control architectures  
A system that incorporates teachings of the present disclosure can include, for example, determining from nodal voltages sampled at an input port of a matching network an impedance of a variable...
8620246 Adaptive impedance matching module (AIMM) control architectures  
A system that incorporates teachings of the present disclosure can include, for example, determining at a port of a matching network reflection information from a signal sampled across at least...
8571489 Front end module with tone injection  
A radio front end includes a power amplifier, a tone injection module, a duplexer, a balancing network, and a processing module. The tone injection module is operable, in a first mode, to produce...
8554156 Frequency generator and gain calibration technique for two-point modulation in a phase-locked loop  
A frequency generator includes a phase-locked loop (PLL) and a voltage controlled oscillator (VCO), where the VCO is arranged to receive low-pass data via a first input and high-pass data at a...
8463218 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...
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...
8433256 Communication devices with integrated thermal sensing circuit and methods for use therewith  
A communication device includes an integrated circuit having an on-chip thermal sensing circuit that generates a temperature signal based on a temperature of the integrated circuit. A processing...
8417195 Method and apparatus adapted to transmit data  
The present invention relates to the field of data transmission. The invention has application to amplifiers, the transmission of data modulated signals, filters and/or matching circuits connected...
8412122 Apparatus and method for antenna matching in portable terminal  
An apparatus and method for antenna matching according to a position and an angle of a portable terminal is provided. Operations of the portable terminal include, when at least one of a position...
8396431 Mobile station traffic state antenna tuning systems and methods  
Wireless communication device antenna matching circuit tuning responsive to power control signals, and, optionally, responsive to received signal quality indicators in a traffic channel. Systems...
8369817 Analog FIR filter  
An analog finite impulse response (AFIR) filter including at least one variable transconductance block having an input for receiving an input voltage and being adapted to sequentially apply each...
8364093 Wireless transmitting/receiving method and wireless transmitting/receiving apparatus  
It is an object of the present invention to provide a wireless transmitting/receiving method for achieving both a high-speed data transfer and a power-saving operation by using wireless...
8358728 Calibration of synthesizer phase using reference harmonic  
Arbitrary phase variations of a shared frequency synthesizer can be calibrated using a reference harmonic each time the shared frequency synthesizer is allocated to a network device to enable one...
8301102 Correcting quadrature crosstalk contamination in receivers  
An apparatus, a method and a system for correcting a phase imbalance are described. Embodiments may measure the phase imbalance inherent in a tuner and use the imbalance measure to correct the...
8260215 Efficient receiver frequency plan for covering multiple frequency bands  
A communications system includes a radio frequency (RF) element (104) for transforming an input RF signal into at least one of a first conditioned RF input signal associated with a first frequency...
8260213 Method and apparatus to adjust a tunable reactive element  
A system that incorporates teachings of the present disclosure may include, for example, a method involving a step to tune a plurality of tunable reactive elements by measuring a drift in...
8254849 FM radio frequency plan using programmable output counter  
An FM radio with a wide frequency range operates in a cell phone without interfering with the VCO of the RF transceiver. The FM transceiver generates a VCO signal whose frequency varies by less...
8244198 Wireless device local oscillator generation apparatus and methods  
Apparatus and methods disclosed herein operate to determine a base oscillator frequency and a frequency conversion factor associated with a radio receiver local oscillator (LO). Base oscillator...
8238839 Receiver, transceiver, and mobile terminal device  
Variable operating currents are generated in relation to input signal power and output signal power and achieving both low noise and low power consumption. Emitter follower circuits are attached...
8238859 Radio receiver  
There is provided a method of configuring a radio receiver, the radio receiver comprising signal receiving means, and at least one adjustable component coupled to the signal receiving means; the...
8224260 Radio frequency signal transmission/reception apparatus and radio frequency signal transmission/reception method  
A radio frequency (RF) signal transmission/reception apparatus and an RF signal transmission/reception method are disclosed. The RF signal transmission/reception apparatus is adapted to perform a...
8219145 Universal radio card for wireless devices  
A multi-band wireless system includes a wireless device and a detachable radio card. The wireless device includes an application processor, an electric interface, and an antenna. The detachable...
8150348 TV tuner and the manufacturing method thereof  
A TV tuner includes an Ultra High Frequency (UHF)/Very High Frequency (VHF) tracking filter, an UHF/VHF matching circuit and a single conversion Tuner IC. The UHF/VHF tracking filter includes a...
8145141 Frequency agile transceiver for use in a multi-band handheld communications device  
A multi-band handheld communications device includes a transceiver including a transmitter having a transmit filter and a receiver having a receive filter, each of the transmit and receive filters...
8121558 Local oscillator generator architecture using a wide tuning range oscillator  
A local oscillator (LO) generator architecture using a wide tuning range oscillator is disclosed. In one embodiment, a wide tuning oscillator based LO generator system includes a wide tuning range...
8116706 Method and apparatus for calibrating a bandpass filter  
To calibrate a bandpass filter, a received signal strength corresponding to a received communication channel is determined. A variable element of the bandpass filter is adjusted based on the...
8073982 Method for setting an operating parameter a peripheral IC and device for carrying out said method  
The invention relates to a method for setting an operating parameter in a peripheral IC. In this method, the operating parameter is transmitted from a central IC via a bus connection to the...
8068791 Apparatus for protecting receiver in TDD wireless communication system  
A Time Division Duplex (TDD) switch of a TDD wireless communication system is provided. By its unique arrangement, the TDD switch protects a receiver of the wireless system. The TDD switch...
8064949 Method and system for bluetooth and FM radio communication  
Frequency conversion methods and systems for Bluetooth and FM radio communication are provided. FM data may be received and/or transmitted via the FM radio and Bluetooth data may be received...
8018914 Radio communication device, demodulation method, and frequency deflection correction circuit  
A demodulation section 13 receives a TDMA-TDD based phase-modulated burst signal of mobile communications and demodulates the burst signal by a synchronous detection system (or a quasi-synchronous...
8000668 Transmit/receive circuit with PIN diodes  
Structurally simple transmit/receive circuits for hearing devices are to be able to be deployed for higher frequencies as well. It is therefore proposed according to the invention that at least...
7995973 Own transmitter interference tolerant transceiver and receiving methods  
Circuits and methods are disclosed for reducing interference from transmitter leakage in a radio transceiver. An exemplary method for reducing interference from transmitter leakage in a radio...
7933553 Tuneable radio-frequency identification tag reader and method of reading such a tag  
A radio-frequency identification (RFID) system is provided that includes an RFID reader that is provided with a capacitor apparatus or circuit that may be used to tune the transmitter to a...
7894778 LO generator to reject unwanted sideband  
According to an example embodiment, an apparatus is provided in a wireless transceiver. The apparatus may include a circuit configured to generate a first frequency signal (e.g., a VCO signal). A...

Matches 1 - 50 out of 160 1 2 3 4 >