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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... |
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9036759 |
Method and apparatus for performing synchronization between devices
A method performed by a device for performing synchronization between devices for a Device-to-Device (D2D) communication is provided. The method includes setting, according to a process of the... |
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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... |
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8976302 |
Radio frequency front end for television band receiver and spectrum sensor
A radio frequency front end for a television band receiver and spectrum sensor includes a low noise amplifier that amplifies a received signal output of a radio frequency antenna connected to the... |
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8892062 |
Closed-loop efficiency modulation for use in network powered applications
Methods for reducing power dissipation from an input power source in a telecommunications system are disclosed. In one embodiment the method includes: utilizing a first I2C device to monitor an... |
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8861641 |
Wireless communication device and wireless communication method
A wireless communication device includes a mixer that multiplies quadrature-modulated transmission data by a local oscillation frequency signal and outputs a high-frequency signal; a distributor... |
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8837635 |
Controlling a transmit path based on monitored error vector magnitude (EVM) performance
Embodiments provide systems and methods to dynamically control a radio frequency (RF) transmitter based on monitored error vector magnitude (EVM) performance. Embodiments are enabled by a feedback... |
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8824986 |
Multi-channel radiofrequency receiver
The invention relates to a multichannel radio-frequency receiver (1) for electromagnetic waves, having a radio-frequency analogue section (2) which has an input (3) for an electrical signal of a... |
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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... |
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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... |
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8750811 |
Method, apparatus and system for phase difference adjustment in transmit diversity
A method and apparatus for using an antenna selection signal for selecting a transmit diversity parameter, including phase difference and/or power ratio between concurrently transmitting antennas. |
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8725214 |
Method of tuning a frequency agile electrically small tactical AM broadcast band antenna system
A Method of Tuning a Frequency Agile Electrically Small Tactical AM Broadcast Band Antenna System (NC#102174) comprising determining a desired operating frequency for a frequency agile... |
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8712348 |
Apparatus and method for controlling a tunable matching network in a wireless network
An apparatus and method manage impedance values in a radio in a wireless network. The apparatus includes a tunable matching network (TMN) positioned on a path between a transceiver and an antenna.... |
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8706051 |
Device and method for adjusting loop filter gain in automatic frequency controller
Provided is a device and a method for adjusting a loop filter gain in an automatic frequency controller, which can allow the automatic frequency controller to operate while maintaining an optimal... |
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8700108 |
Mobile wireless communications device with RF shield and related methods
A mobile wireless communications device may include a housing, an antenna carried by the housing, and a circuit board carried by the housing. The mobile wireless communications device may also... |
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8666524 |
Portable music player and transmitter
A hand-held music player for use in conjunction with radios, including a casing, a receiver socket on the casing through which digital audio data is received, a digital-to-analog audio converter... |
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8655290 |
Antenna with built-in filter and electronic device
An antenna with a built-in filter for use in an electronic device includes: an antenna element; and a circuit board unit connected to the antenna element, wherein the circuit board unit includes:... |
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8620236 |
Techniques for improved adaptive impedance matching
An embodiment of the present invention provides a method for limiting tuning of a matching network having variable reactive elements coupled to a variable load impedance to at least reduce an... |
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8583183 |
Transmission and reception parameter control
A system and method for implementing transmission parameter control at a transmitting station is described. The exemplary system and method comprises querying a transmission parameter control... |
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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... |
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8494539 |
Congestion management in radio access networks
A method for congestion management in a radio access network is provided. The radio network controller maintains available bandwidth information for each of the downstream links towards the base... |
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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... |
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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... |
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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... |
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8452246 |
Antenna tuner in combination with modified feedback receiver for improved antenna matching
Some embodiments of the present disclosure relate to techniques for automatically measuring antenna mismatching conditions for a given mobile phone with a given antenna in a given environment and... |
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8452299 |
Allocating code space to base stations
In addition to other aspects disclosed, a portable base station requests a mobile handset to measure signal strengths associated with a portion of a code space. The portable base station also... |
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8436693 |
Filter-tracking and control method
A method to track and control the resonance frequency of a band-pass filter provides a solution for the sensitivity limitations against temperature and process variations. A phase sensing module... |
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8412136 |
Measuring load impedance of an amplifier driving a variable load
According to an aspect of the present invention, the magnitude and phase angle of looking-in impedance driven by an amplifier are computed in digital domain during normal operation within a module... |
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8406358 |
Radio-frequency apparatus with programmable performance and associated methods
A radio frequency (RF) apparatus has a receiver. The receiver includes a mixer, a clock generator, and a common mode controller. The clock generator couples to the mixer. The common mode... |
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8369796 |
Multi-band tunable frequency reconfigurable antennas using higher order resonances
A wireless device using natural higher order harmonics on multi-band reconfigurable antenna designs where the antenna higher order resonance is used to build a multi-band to multi-band frequency... |
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8340714 |
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... |
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8320850 |
Power control loop using a tunable antenna matching circuit
The present disclosure relates to combining tunable antenna matching circuit adjustments and RF power amplifier output power adjustments of a first RF terminal in response to output power... |
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8306489 |
Circuit for a loop antenna and method for tuning
A circuit for a loop antenna having a first antenna terminal and a second antenna terminal with an antenna impedance, and method for tuning an overall impedance that has an antenna impedance of a... |
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8285228 |
Signal transmitting circuit and related method
A signal transmitting circuit includes: a signal generating circuit arranged to generate an output signal to a loading device according to an input signal; an adjusting circuit; and a matching... |
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8260347 |
Radio frequency communication devices and methods
One embodiment relates to a circuit for efficient wireless communication. The circuit includes a communication port adapted to be coupled to an antenna feed. Multiple communication paths stem from... |
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8233861 |
Switched impedance synthesis transmit antenna matching system for electrically small antenna radiators
A system for transmitting a broadband signal over an electrically short antenna which includes a plurality of switched impedance synthesis transmit antenna matching circuits which are dynamically... |
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8233856 |
MEMS capacitor circuit and method
A communications circuit processes a signal in at least one predetermined communications standard such as GSM or UMTS. A switched capacitor impedance matching unit is provided, controlled by... |
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8219053 |
Automatic tuning reader
A system and method of automatically tuning a reading device that remotely monitors RFID tags or transponders. The reading device utilizes the phase signal of an antenna signal wherein the... |
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8213886 |
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 the transceiver to an antenna, a power sensor adapted to acquire measurements... |
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8204458 |
Transmitting device and method of tuning the transmitting device
A transmitting device comprising a transmitter, an antenna and a tuning means comprising a matching network connectable between the transmitter and the antenna, the matching network comprising a... |
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8200168 |
Programmable antenna assembly and applications thereof
A programmable antenna assembly includes a configurable antenna structure, a configurable antenna interface, and a control module. The configurable antenna structure includes a plurality of... |
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8195229 |
Communication devices with gyrating circuits and methods for use therewith
A device includes a gyrating circuit that generates a motion parameter based on motion of the device. An RF transceiver generates an outbound RF signal from an outbound symbol stream, transmits... |
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8190109 |
Dynamic real-time calibration for antenna matching in a radio frequency transmitter system
Real-time calibration of a tunable matching network that matches the dynamic impedance of an antenna in a radio frequency transmitter system. The radio frequency transmitter system includes two... |
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8185062 |
Configurable antenna assembly
A configurable antenna assembly includes an antenna structure and a configurable antenna interface. The antenna structure is operable, in a first mode, to provide a first antenna structure and a... |
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8170627 |
Wireless communications system having reduced noise mode operation capability
A wireless communication system having a terminal unit operates in a reduced noise state during receipt of a wireless transmission from a control unit. The terminal unit includes terminal... |
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8145124 |
Method and apparatus to broadcast content to handheld wireless devices via digital set-top-box receivers
Delivery of programming from a content provider to one or more hand held devices is effected via a set-top box (STB). The STB receives a transport stream, recognizes and de-multiplexes out a... |
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8121561 |
Power tuning system and method for power amplifier
An automatic power tuning system and method, and a transmitter employing either the system or the method. In one embodiment, the system includes: (1) a power detector circuit coupled to an output... |
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8099065 |
Transmitting apparatus and method
Communication with less noise is to be performed. A voltage value control signal functioning as an instruction to change the voltage value supplied from a voltage converting section to an LFI is... |
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8073392 |
Transmitter architecture based on antenna parasitic switching
The invention is a radio transmitter that includes an antenna having at least one driven element and at least one reflector element. The driven element is electrically coupled to a radio carrier... |
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8064935 |
Ubiquitous connectivity and control system for remote locations
A thermostat control system for monitoring and controlling environmental characteristics of a building includes a base station unit and a remote access unit continuously interfacing through... |