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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... |
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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... |
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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... |
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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.... |
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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... |
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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... |
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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... |
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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,... |
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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... |
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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:... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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,... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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,... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |