Matches 1 - 43 out of 43


Match Document Document Title
US20120135694 UNSCHEDULED PROTOCOLS FOR SWITCHED ANTENNA ARRAYS  
In an example embodiment, an apparatus, comprising a first wireless transceiver, a first directional antenna coupled to the first wireless transceiver, a second wireless transceiver, a second...
US20130260699 GENERATING TEST MEASUREMENT VALUES FOR AUTOMATIC CALIBRATION USING AN INTERNAL TESTING LOAD  
A wireless communication device configured for automatic calibration is described. The wireless communication device includes a testing load. The wireless communication device also includes a...
US20130331044 FACILITATING SWITCHING BETWEEN TRANSMITTING ANTENNAS IN PORTABLE ELECTRONIC DEVICES  
The disclosed embodiments provide a system that uses a first antenna and a second antenna in a portable electronic device. During operation, the system receives a request to switch from the first...
US20120225626 REUSE OF A SWITCH IC AS A STEP ATTENUATOR  
The present invention concerns a system and associated method for providing attenuation of a received signal in a two-way communication circuit without the use of a separate switchable attenuator....
US20150024697 WIRELESS DOCKING WITH CARRIER SENSE CONTROL  
A wireless docking system in a shared radio spectrum environment includes a docking station (220) configured with a radio (224) connected to an antenna (222), a dockee (210) configured with a...
US20150099475 WIRELESS COMMUNICATION APPARATUS  
A wireless communication apparatus includes a first wireless communication unit performing a first type wireless communication and a second wireless communication unit performing a second type...
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...
US20130012143 Method of Controlling a Plurality of Internal Antennas in a Mobile Communication Device  
In one embodiment, a mobile communication device comprises a first antenna; a second antenna; a transceiver for processing a received signal and generating a transmit signal; and a controller,...
US20130155911 Radio Transceiver With IM2 Mitigation  
A structure and method to reduce second order intermodulation (IM2) of a receiver in a transceiver is provided. Specifically, the output of a detector in a transmit power control loop is utilized...
US20130309982 ANTENNA SWITCH CONFIGURATION DEVICES, METHODS, & SYSTEMS  
A wireless communication apparatus is provided that includes a plurality of antennas and at least one receive or transmit circuit. The apparatus further includes a controller configured to:...
US20130183912 BASEBAND STRUCTURE OF TRANSCEIVER  
There is provided a baseband structure of a transceiver. In an embodiment, a baseband structure of a transceiver includes a Variable Gain Amplifier (VGA) configured to amplify an input signal by...
US20130344821 Power-Aware Coexistence  
A communication device comprising: a receiver operable to receive radio transmissions according to a first communication protocol; a transmitter operable to transmit radio transmissions according...
US20070072557 Wireless microphone device having built-in memory element  
A wireless microphone device having a built-in memory element is provided herein. The wireless microphone device mainly contains a memory element for storing digital audio information. The stored...
US20120295558 Dynamic Cancellation of Passive Intermodulation Interference  
A wireless communication node (10) dynamically estimates passive intermodulation (PIM) interference coupled into the node's receive path from the transmission of a composite signal through the...
US20060135085 Wireless telephone with uni-directional and omni-directional microphones  
A wireless telephone having a first microphone and a second microphone and a method for processing audio signal in a wireless telephone having a first microphone and a second microphone. The...
US20130210375 Cancellation of RF Second-Order Intermodulation Distortion  
The disclosed invention relates to a transceiver system configured to cancel RF second-order intermodulation distortion (IMD2) within a differential reception path. In some embodiments, the...
US20060205362 Audio signal transmitting apparatus  
An audio signal transmitting apparatus utilizes an encoder/decoder and an audio signal controller to convert an audio signal received by a mobile phone into a file executable by a computer system,...
US20130259102 TUNABLE NOTCH FILTER USING FEEDBACK THROUGH AN EXISTING FEEDBACK RECEIVER  
A wireless communication device configured for reducing Tx leakage in a receive signal is described. The wireless communication device includes a transceiver chip. The transceiver chip includes a...
US20130259099 TUNABLE NOTCH FILTER USING FEEDBACK THROUGH AN EXISTING FEEDBACK RECEIVER  
A wireless communication device configured for reducing Tx leakage in a receive signal is described. The wireless communication device includes a transceiver chip. The transceiver chip includes a...
US20130035047 METHODS AND APPARATUS FOR ANTENNA ISOLATION-DEPENDENT COEXISTENCE IN WIRELESS SYSTEMS  
Methods and apparatus for selectively switching one or more antennas in a multiple-input, multiple-output (MIMO) antenna array so as to mitigate interference with another RF interface within the...
US20140119244 COGNITIVE RADIO RF FRONT END  
Embodiments are directed to a circuit comprising separately tunable receive and transmit frequency bands, wherein the circuit is configured to minimize undesired transmitter signals in a receiver...
US20130225101 SECOND-ORDER FILTER WITH NOTCH FOR USE IN RECEIVERS TO EFFECTIVELY SUPPRESS THE TRANSMITTER BLOCKERS  
The disclosed invention relates to a transceiver system comprising a notch filter element configured to suppress transmitter blockers (i.e., transmitter interferer signals) within a reception...
US20110211620 SWITCHING BETWEEN TRANSMIT AND RECEIVE MODES IN A WIRELESS TRANSCEIVER  
A wireless transceiver decodes a receive signal to extract data contained in the receive signal. A processing block contained in the wireless transceiver then initiates a power-ON of the transmit...
US20150188600 SWITCHING CIRCUIT AND RF SWITCH INCLUDING THE SAME  
A switching circuit may include: the switching circuit includes a switching circuit unit including a first transistor and a second transistor connected to each other in series, the second...
US20050136848 Multi-mode audio processors and methods of operating the same  
A portable electronic device is provided that includes a housing and first and second spaced apart transducers positioned in the housing. A multi-mode audio processor circuit is configured to...
US20090081962 Time Multiplexing for Coexistence Within Multiple Communication Systems  
Methods and apparatus permitting the coexistence of multiple communication links to distinct wireless systems in a client device are disclosed. A wireless device can interface with both a primary...
US20140273889 ESTIMATION AND REDUCTION OF SECOND ORDER DISTORTION IN REAL TIME  
A radio receiver method of reducing second order distortion components involves at a first mixer, mixing an input signal with an oscillator signal to generate an I component of a received radio...
US20130343245 SIGNAL AMPLIFIERS THAT SWITCH TO AN ATTENUATED OR ALTERNATE COMMUNICATIONS PATH IN RESPONSE TO A POWER INTERRUPTION  
RF signal amplifiers are provided that include an RF input port, a switching device having an input that is coupled to the RF input port, a first output and a second output, a first diplexer...
US20100222012 WIRELESS COMMUNICATION APPARATUS AND METHOD  
A wireless communication apparatus that performs communication uses a communication method in which a transmission period and a reception period alternate with each other. The wireless...
US20080198776 APPARATUS FOR OPTIONALLY SUPPORTING TIME DIVISION DUPLEX AND FREQUENCY DIVISION DUPLEX IN A WIRELESS COMMUNICATION SYSTEM  
A Radio Frequency (RF) front-end apparatus in a wireless communication system is provided. The apparatus includes a plurality of BandPass Filters (BPFs) for band-pass filtering a transmission...
US20140073267 FILTERS FOR MULTI-BAND WIRELESS DEVICE  
Techniques to implement a filter for a selected signal path by reusing a circuit component in an unselected signal path are disclosed. In an exemplary design, an apparatus includes first, second,...
US20120252376 WIRELESS COMMUNICATION DEVICE, WIRELESS COMMUNICATION SYSTEM, AND WIRELESS COMMUNICATION METHOD  
A wireless communication device avoids unnecessary reduction of transmission capacity of a data signal to ensure the reliability of a pilot signal. A determination unit determines a reception...
US20130028148 MOBILE TERMINAL  
A mobile terminal includes a main body and a wireless communication module mounted in the main body. The wireless communication module includes a first transceiver including transmit and receive...
US20170019144 IOT AUTOMATION AND DATA COLLECTION SYSTEM  
A system and method for automating a deployment site served by a distributed antenna system (DAS) is disclosed. The deployment site is configured with a plurality of remote antenna units (RAU). At...
US20170005626 CASCADE AMPLIFIER LINEARIZATION IN A RADIO FREQUENCY SYSTEM  
A linearization circuit reduces intermodulation distortion in a cascade amplifier that includes a first stage and a second stage. The linearization circuit receives a first signal that includes a...
US20160241300 UNPOWERED SWITCHING MODULE  
Unpowered switching module. A switching module can include a first input terminal, a second input terminal, and an output terminal. The output terminal can be configured to output a...
US20160211882 SWITCHED, SIMULTANEOUS AND CASCADED INTERFERENCE CANCELLATION  
Aspects of the disclosure are directed to interference cancellation and wireless communication. A method of performing analog interference cancellation in a wireless communications device having a...
US20160119017 MULTIPLEXER DEVICE WITH MULTIPLE NOTCH FILTERS CONNECTED IN PARALLEL  
A multiplexer device includes an antenna node connected to an antenna for at least one of receiving and transmitting signals; multiple band pass filters connected to the antenna node, each band...
US20160072593 TRANSCEIVER AND OPERATION METHOD THEREOF  
A transceiver and an operation method thereof are provided. The transceiver includes a transmitter and a receiver. The transmitter is configured to receive an output reference signal to provide an...
US20150365128 SYSTEM AND METHOD FOR LEAKAGE SUPPRESSION BY SEPARATING IMPAIRMENTS FROM THE RECEIVE PATH  
A system for reducing a local oscillator leakage component. The system includes a transmitter channel to transmit data modulated using a transmitter local oscillator frequency. A transmitted...
US20150296351 METHOD FOR AUTOMATICALLY SWITCHING TO A CHANNEL FOR TRANSMISSION ON A MULTI-WATCH PORTABLE RADIO  
A method for automatically switching to a channel for transmission on a portable radio is provided. In operation, a first microphone is assigned to respond to communications received on a primary...
US20140242924 ADAPTIVE MODE OPTIMIZER AND MODE SHIFTER  
A mode shifter connects via an input port to an antenna port of a transceiver. A port signal analyzer monitors the signal at the input port and informs a signal switch whether the signal power...
US20120282867 Transceiver Arrangement and Method for Processing a Signal  
A transceiver arrangement includes a first receive path including a first connection and a first receive amplifier, and a second receive path including a second connection, a second receive...

Matches 1 - 43 out of 43