Match Document Document Title
US20120142285 ANTENNA SWITCHING SYSTEM AND ANTENNA SWITCHING METHOD  
According to one embodiment, an antenna switching system includes a (a≧3) antennas and a selector. The selector selects b1 (2≦b1
US20150162949 Independent Control of Branch FETs for RF Performance Improvement  
A FET-based RF switch architecture and method that provides for independent control of FETs within component branches of a switching circuit. With independent control of branch FETs, every RF FET...
US20120289172 ARRAY ANTENNA SYSTEM  
A method for an antenna system including a transmitting phase array antenna including a transmitting antenna subarray including a number of antenna elements transmitting on a first frequency and a...
US20130072135 WIRELESS COEXISTENCE THROUGH ANTENNA SWITCHING  
Systems, methods, and other embodiments associated with wireless coexistence through antenna switching are described. According to one embodiment, a method includes selecting one or both of a...
US20140113573 AMPLIFIERS WITH SHUNT SWITCHES  
Amplifiers with shunt switches to mitigate interference are disclosed. In an exemplary design, an apparatus includes an amplifier and a shunt switch. The amplifier has an input operatively coupled...
US20140302803 COMBINED INTELLIGENT RECEIVE DIVERSITY (IRD) AND MOBILE TRANSMIT DIVERSITY (MTD) WITH INDEPENDENT ANTENNA SWITCHING FOR UPLINK AND DOWNLINK  
Methods and apparatus are provided for allowing a transmitter (Tx) to perform antenna selection independently of a receiver (Rx) in a transceiver supporting both transmit diversity and receive...
US20110136446 COMBINED INTELLIGENT RECEIVE DIVERSITY (IRD) AND MOBILE TRANSMIT DIVERSITY (MTD) WITH INDEPENDENT ANTENNA SWITCHING FOR UPLINK AND DOWNLINK  
Methods and apparatus are provided for allowing a transmitter (Tx) to perform antenna selection independently of a receiver (Rx) in a transceiver supporting both transmit diversity and receive...
US20120129472 MOBILE WIRELESS COMMUNICATIONS DEVICE WITH HUMAN INTERFACE DIVERSITY ANTENNA AND RELATED METHODS  
A mobile wireless communications device may include a portable handheld housing, and a wireless transceiver carried by the housing. A pair of an antennas are positioned in side-by-side relation...
US20150214994 THREE-DIMENSIONAL POWER AMPLIFIER ARCHITECTURE  
The present disclosure provides a three-dimensional (3-D) transformer-based (TF-based) power amplifier architecture, including a power splitting plane having at least one input transformer-based...
US20120190312 RADIO ANTENNA SWITCH  
A radio antenna switch module for a high frequency radio transceiver enables the radio transceiver to have a small number of receivers and transmitters and a larger number of antennas, whereby...
US20120309327 RF AMPLIFIER WITH OPEN CIRCUIT INPUT OFF-STATE  
An amplifier including an amplifier transistor, and a switch transistor, wherein the amplifier is configured to be switched on and off by controlling bias voltages of the transistors.
US20140141732 Wireless Transceivers with Filter Arrangement for WiFi and LTE Coexistence  
Embodiments provide WiFi and LTE tailored transceiver radio frequency (RF) filtering techniques and configurations to enable coexistence between WiFi and LTE transceivers operating in close...
US20140256274 RX-TX Switch with Two Power Amplifiers  
There is described a RF front end circuit comprising: a common impedance matching network (4) connected to an output terminal (5), a first power amplifier (1), PA, arranged to drive power to the...
US20110021135 RF REDIRECTION MODULE AND SYSTEM INCORPORATING THE RF REDIRECTION MODULE  
An RF redirection module incorporated into an RF system already having a receive antenna and a first transmit antenna allows the RF system to be coupled to a second transmit antenna and to provide...
US20140220910 GAIN SYNCHRONIZATION CIRCUITRY FOR SYNCHRONIZING A GAIN RESPONSE BETWEEN OUTPUT STAGES IN A MULTI-STAGE RF POWER AMPLIFIER  
A multi-stage radio frequency (RF) power amplifier includes a high-power amplifier path and a low-power amplifier path. The low-power amplifier path includes gain synchronization circuitry in...
US20130078931 Transmit-Receive Front End  
The present invention discloses a transmit-receive (TR) front end. The TR front end includes a low-noise amplifier (LNA); a power amplifier (PA); a transformer, coupled to the PA, for increasing a...
US20140024322 RADIO FRONT END HAVING REDUCED DIVERSITY SWITCH LINEARITY REQUIREMENT  
A radio front end that includes a diversity switch module adapted to route diversity receive (RX) signals to transceiver circuitry from diversity antenna switch circuitry coupled to at least one...
US20110039504 MATCHING CIRCUIT FOR ADAPTIVE IMPEDANCE MATCHING IN RADIO  
An impedance matching circuit for a radio receives antenna signals and has its matching elements, such as capacitors, progressively switched into the circuit, with the matching element...
US20130035046 WIRELESS COMMUNICATION APPARATUS AND ELECTRONIC EQUIPMENT  
Provided is a wireless communication apparatus including at least one two-way antenna for power recovery, a wireless block processing a wireless signal which the two-way antenna for power recovery...
US20130265912 Antenna and RF Front-end Arrangement  
An antenna and RF front-end arrangement include at least one LTE or WCDMA Tx&Rx antenna, one MIMO Rx or diversity antenna adapted for low band LTE or WCDMA and one MIMO Rx or diversity antenna...
US20140361979 GRIP SENSOR DEVICE AND GRIP SENSING METHOD  
A grip sensor device and a grip sensing method are provided. The grip sensor device includes an antenna that is formed of metal within a mobile electronic device and communicates a signal of a...
US20140162574 Mobile Communication  
An apparatus for use in a mobile device includes a switch unit configured to switch a common connection of a transmitter and a first receiver from a first antenna to a second antenna and a...
US20110076967 IMPEDANCE MATCHED LANE REVERSAL SWITCHING SYSTEM  
An impedance matched lane reversal switching system including first and second transceiver pairs, each of the pairs including a transmitter connected to a receiver, the output of the transmitter...
US20090017776 RADIO RECEIVER CIRCUIT, RADIO TRANSCEIVER CIRCUIT AND CALIBRATION METHOD THEREOF  
Conventional digital calibration type analog-to-digital converters cannot converge calibration within an preamble period of a packet signal. An analog-to-digital converter is subjected to digital...
US20130130631 WIRELESS COMMUNICATION DEVICE FOR SWITCHING ANTENNAS  
A wireless communication device comprises a first antenna, a second antenna, a switch, and a balun. The first antenna and the second antenna transmit and receive signals. The wireless...
US20110003563 Radio Frequency Front End Circuit with Antenna Diversity for Multipath Mitigation  
A front end circuit for selectively coupling a first antenna and a second antenna to a transmit chain and a receive chain of a radio frequency (RF) transceiver is disclosed. There is a first power...
US20140357201 Wireless Communication Device and Wireless Communication Method  
A wireless communication device has a first wireless communication unit and a second wireless communication unit. A controller of the wireless communication device is configured to set a...
US20150222318 Transmit-Receive Front End  
The present invention discloses a transmit-receive (TR) front end. The TR front end comprises a low-noise amplifier (LNA); a power amplifier (PA); a transformer, coupled to the PA, for increasing...
US20140004805 Noise Reduction and Tilt Reduction in Passive FET Multi-Phase Mixers  
The noise response in a passive mixer circuit is improved by discharging the switching transistors in the mixer circuit in an appropriate time slot prior to activation. In addition to improving...
US20110299434 REDUCING POWER CONSUMPTION BY TAKING ADVANTAGE OF SUPERIOR IN-CIRCUIT DUPLEXER PERFORMANCE  
Although the duplexer in a full-duplex transceiver circuit may only be guaranteed by the duplexer manufacturer to have a transmit band rejection from its TX port to its RX port of a certain...
US20150056933 TX ANTENNA SELECTION FOR LTE IN MULTIPLE RADIO DEVICES  
Device antennas may be allocated such that a non-LTE module (e.g., GSM module or 1x module) shares the same antenna with an LTE DRx module. This may lead to degradation of a non-LTE voice service...
US20140065983 COMMUNICATION TERMINAL WITH ANTENNA SWITCHING FUNCTION AND METHOD FOR AUTOMATICALLY SWITCHING BETWEEN ANTENNAS  
A method for switching among antennas of a communication terminal includes receiving acceleration values periodically sensed by an accelerometer. The acceleration values indicate amount of changes...
US20110237207 ADAPTIVE ANTENNA NEUTRALIZATION NETWORK  
An adaptive antenna neutralization network (AANN) for neutralizing coupling between a first antenna and a second antenna of a mobile terminal is disclosed. The AANN includes an array of reactive...
US20140187179 Spatially Diverse Antennas for a Headset Computer  
The invention presented relates to wireless handsfree head worn headset computing devices including a microdisplay device and spatially diverse antenna system. The spatially diverse antenna system...
US20140273888 IMPLICIT SWITCH FOR SWITCHING BETWEEN RECEIVE AND TRANSMIT MODES OF ANTENNAS  
A millimeter-wave radio frequency front-end circuit is provided. The front-end circuit comprises a millimeter-wave antenna configured to receive and transmit millimeter-wave signals; a matching...
US20050245203 DEVICE AND METHOD FOR HANDS-FREE PUSH-TO-TALK FUNCTIONALITY  
A device for hands-free push-to-talk functionality may include a push-to-talk sensor or switch operable by at least one of a preset audible signal, a predetermined movement of the sensor or...
US20060286941 Selection of antenna patterns  
A wireless transceiver is disclosed. The wireless transceiver includes an antenna having an adjustable setting to perturb an antenna pattern of the antenna. A receive/transmit signal quality is...
US20140141731 ANTENNA ARRANGEMENT FOR 3G/4G SVLTE AND MIMO TO ENABLE THIN NARROW BOARDERED DISPLAY PHONES  
A method and system provides a multiple input multiple output (MIMO) antenna arrangement in a wireless communication device. A first antenna element and a second antenna element co-located within...
US20130344820 FRONT-END CIRCUIT  
The present invention concerns a front-end circuit (FEC) that is connectable to at least two radiators (RAD1M, RAD1D), wherein the front-end circuit (FEC) comprises sub-circuits (SC) and each...
US20140370826 WIRELESS SENSOR BASE STATION WITH COEXISTENCE OF MULTIPLE HOMOGENEOUS RADIOS  
Techniques are disclosed for reducing interference, in a network device, among multiple radio circuits operating in a same or similar frequency band and in close physical proximity. In some...
US20110159823 RF Front-end Circuit and Wireless Communication Device Using the Same  
The present invention discloses an RF front-end circuit for a wireless communication device, which includes an RF terminal coupled to an antenna of the wireless communication device, for receiving...
US20110269412 Selective Push-to-Talk  
A push-to-talk (PTT) switch with biasing to a first center position in which in which the PTT function of neither one of up to two audio devices is engaged, also having a first operated position...
US20140206300 METHODS AND SYSTEMS FOR NOISE AND INTERFERENCE CANCELLATION  
Signals propagating from an aggressor communication channel can cause detrimental interference in a victim communication channel. One or more noise cancellers can generate an interference...
US20130035044 EFFICIENT FRONT END AND ANTENNA IMPLEMENTATION  
A tightly integrated combined transmit and receive dual quadrifilar antenna is provided. The antenna comprises four helical transmit elements and four helical receive elements disposed about a...
US20070173286 Distribution of shared local oscillation to multiple RF intefaces of a wireless device  
A Radio Frequency (RF) transceiver Integrated Circuit (IC) includes a plurality -of RF transceivers, local oscillation generation circuitry that produces a local oscillation, and local oscillation...
US20130331043 HIGH LINEARITY TX/RX SWITCH  
A TX/RX switch includes a first switching device connectable with a power amplifier and a second switching device connectable with a low noise amplifier. Both the first switching device and the...
US20050208900 Co-existing BluetoothTM and wireless local area networks  
Two antennas provide signals and a diversity switch selects the antenna providing the highest signal strength for a WLAN module. A Bluetooth™ module is routed or switched to receive a signal from...
US20140045442 ELECTROMAGNETIC FIELD TRANSMITTING AND RECEIVING ANTENNAE ARRANGEMENT  
A method for minimizing an interfering current induced in an antenna receiving an electromagnetic field, where the field is generated by a transmitting antenna located near the receiving antenna....
US20150072629 WIRELESS COMMUNICATION DEVICE FRONT END AND DISTRIBUTED ANTENNA SYSTEM  
A wireless communication device front end includes power amplifiers, low noise amplifiers, and a distributed antenna system. The distributed antenna system includes antennas and an antenna...
US20110076966 METHOD FOR DRIVING AN ANTENNA OF A MOBILE DEVICE  
A method for driving an antenna of a mobile device, and a mobile device comprising an antenna, a plurality of antenna matching circuits, a selecting unit and a processing unit are described.