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Match Document Document Title
8165552 Method and system for identifying radio frequency identification (RFID) tag location using a switchable coil  
Aspects of a method and system for identifying a radio frequency identification (RFID) tag location using a switchable coil are presented. Aspects of the systems may include one or more processors...
8145173 Receiver and electronic apparatus having diversity and single receiving modes  
A receiver includes a first receiving section, a second receiving section, and a controller. A controller is operable to switch between a diversity receiving mode in which both of the first...
8126412 Ultra low power RF link  
A receiver including a processor. A plurality of Fast Fourier Transforms of a plurality of signal segments of a signal can be determined by the processor. The plurality of Fast Fourier Transforms...
8064824 Systems and methods for reducing power robbing impact of interference to a satellite  
Processing return feeder link signals at a satellite gateway including a first and second receive antennas includes receiving first and second return feeder link signals at the first and second...
7952464 Configurable RFID tag with protocol and band selection  
A multi-band and/or multi-protocol, configurable, RFID tag is provided. The tag can include one or more electrical or mechanical selectors for selecting from among multiple frequency bands and...
7929921 Diversity control in wireless communications devices and methods  
A wireless communications device (100) includes a primary radio frequency branch (134) and a diversity branch (136), which is enabled and disabled to balance performance and power consumption....
7917116 Method and system for antenna selection diversity with prediction  
Certain embodiments of the invention may be found in a method and system for antenna selection diversity with prediction. An antenna diversity system may use information that it has stored on the...
7907960 Method and apparatus for adjusting feedback of a remote unit  
Methods and apparatus implementing spatial processing in a remote unit. In general, in one aspect, the present invention provides a remote unit, that includes a plurality of antennas and a spatial...
7899497 System and method for transmission parameter control for an antenna apparatus with selectable elements  
A system and method for improved data transmission on a wireless link to a remote receiving node includes a communication device for converting packets to RF at a physical data rate, an antenna...
7899425 Multi-band wireless communication device and method  
The present invention relates to a wireless communication device, such as a transponder, that has a plurality of antennas for multi-frequency usage. The wireless communication device comprises a...
7881670 Non-capture one-tuner smart antenna  
In one-tuner smart antennas, a constant amplitude representation of the antenna element wideband signal is correlated with a representation of the smart antenna output signal to give a measure of...
7801556 Tunable dual-antenna system for multiple frequency band operation  
A tunable dual-antenna system for multiple frequency band operation is disclosed, which allows a device to switch between multiple frequencies and/or multiple modes, such as CDMA and GSM. The...
7792496 Transmitter receiver unit and electronic apparatus using same  
A transmitter receiver unit of the present invention comprises a phase shifter connected between a transistor and a filter multiplexer for decreasing a reactance component of an impedance, as...
7787846 Ultra low power RF link  
An RF system is capable of transmitting and receiving sensor data using an ultra low power narrowband RF signal. The system handles frequency drift and other problems inherent in such a system...
7711389 High frequency module  
A high frequency module for transmitting and receiving, for example, communication signals of GSM/DCS/PCS/WCDMA systems through a single antenna, is provided at a relatively small size and low...
7706768 Diversity switching  
A method for switched diversity, including: determining, on a pair-wise basis, a plurality of comparative quality factors corresponding to at least two antennas based on signals received by the at...
7706759 RF reception system with programmable impedance matching networks and methods for use therewith  
A (radio frequency) RF reception system includes an off-chip antenna interface and an integrated circuit. The an off-chip antenna interface includes at least one first off-chip impedance matching...
7684759 Method for determining the damped natural frequencies of a dynamic system  
The present invention is a novel device, system, and method for determining the damped natural frequencies of a dynamic system whose characteristics are available in the form of a “frequency r...
7684776 Wireless communication device having variable gain device and method therefor  
Briefly, in accordance with one embodiment of the invention, a wireless device has an array of antennas. A signal is provided to one of the antenna by two variable gain amplifiers, one of which...
7657232 Offset-frequency loop-back calibration  
Embodiments of methods and means for calibrating a linearization characteristic within an RF transceiver system are provided. Such embodiments generally include extracting a portion of an output...
7657243 RF transceiver front-end  
An RF transceiver front-end includes receiver and transmitter front-ends. The receiver front-end includes 1st and 2nd antennas, a ninety degree phase shift module and an LNA module. The 1st and 2nd...
7623835 Multi-band wireless communication device and method  
The present invention relates to a wireless communication device, such as a transponder, that has a plurality of antennas for multi-frequency usage. The wireless communication device comprises a...
7577403 Non-capture one-tuner smart antenna  
In one-tuner smart antennas, a representation of the antenna element wideband signal is correlated with a representation of the smart antenna output signal to give a measure of the selected channel...
7565126 RF receiver system having switched antenna diversity module  
An RF receiver system is provided having a plurality of selectable antennas. The system includes a receiver for receiving RF signals from one of the plurality of antennas at a time. The receiver...
7474875 Networking integration of wire-free electric power surface  
An apparatus including surface that includes a set of contact points, the surface to provide a medium to transmit data between a first device in contact with one or more contact points of the...
7400872 Radio receiver for selecting appropriate diversity antennas by comparing correlation values and a method for the same  
In the diversity receiver, the RF switcher switches the received signals to supply them to the RSSI power detector equipped with diversity function. Subsequently, the RSSI power detector with...
7395084 Dynamic antenna allocation system  
A communication system with an antenna array having a respective antenna for each of a multitude of communication modules and a control system which seiectiyely reassigns communication over a first...
7373119 Method and apparatus for analog-to-digital conversion  
The present invention eliminates the need for an anti-aliasing filter in a receiver that employs an analog-to-digital converter. By maintaining a predetermined relationship between a local...
7356324 Mobile radio receiver device  
The invention is directed to a receiver arrangement, for example, in a mobile radio, which allows the use of slowly locking phase locked loops for a point-to-point connection between two...
7349691 System and apparatus for performing broadcast and localcast communications  
Described is a communication system including mobile communication devices. In the described system, the mobile devices many be wrist-worn watches such as are in common use today, except that the...
7299025 Harmonic rejection gated-switching mixer  
Rejection of local oscillator harmonic response is provided in a mixing circuit with a pair of harmonic gating switches serially connected to the outputs of a balanced differential switching mixer...
7286808 Broadcast receiving system and broadcast receiving method  
In a broadcast receiving system, a first antenna receives a broadcast signal of a first frequency band and a second antenna receives a signal of a second frequency band different from the first...
7277686 Antenna and frequency diversity receiving apparatus  
An apparatus determines an optimal antenna and frequency combination by selecting the optimal antenna from among a plurality, N, of antennas associated with a receiver and also selects the optimal...
7236759 Method for steering smart antenna beams for a WLAN using signal and link quality metrics  
An antenna steering algorithm for a smart antenna uses signal quality metrics and link quality metrics for selecting a preferred antenna beam. The link quality metrics supplement the signal quality...
7221922 Switch circuit and composite high frequency elements  
A switch circuit for switching the connection of the receiving or transmitting circuits of two communication systems to an antenna circuit, which comprises first and second switch means having two...
7212789 Tunable duplexer  
The method and apparatus herein identifies tunable duplexer in a communication system. The tunable duplexer includes a tunable receiver filter, a tunable transmitter filter, a variable receiver...
7184734 Radio communication apparatus  
A radio communication apparatus using an array antenna has a plurality of reception branches for conveying reception signals received at the antenna element of the array antenna, and a calibration...
7167688 RF transceiver module formed in multi-layered ceramic  
An RF transceiver module for wireless communication devices includes a multi-layered substrate, an RF transceiver IC mounted on the multi-layered substrate for receiving and transmitting voice or...
7072635 Method for combining data from phase indeterminate data streams for raking  
A received wireless signal contains a plurality of path components, each having a phase indeterminate data stream derived from an original data stream. The receiver splits the received signal into...
7031653 Switch matrix for satellite payloads with multiple uplink beams and on-board signal processing  
A method and apparatus for switching signals through a switch matrix are disclosed. The apparatus comprises an input module and an output module. The input module has a plurality of inputs...
7024163 Method and apparatus for adjusting feedback of a remote unit  
Methods and apparatus implementing spatial processing in a remote unit. In general, in one aspect, the present invention provides a remote unit, that includes a plurality of antennas and a spatial...
6892059 Closed-loop transmitting antenna diversity method, base station apparatus and mobile station apparatus therefor, in a next generation mobile telecommunications system  
A closed-loop transmitting antenna diversity method, and a base station and mobile station apparatus therefore in a next generation mobile telecommunications system, the closed-loop transmitting...
6845233 RF receivers with reduced spurious response for mobile stations and methods therefor  
A mobile wireless communication device (10) having a direct conversion receiver (20) reduces spurious mixer response by predicting blockers on the received RF signal. The chopping frequency of the...
6683906 Radio communication apparatus  
A radio communication apparatus subjects each signal which is received via a multi-path and demodulated, to a Hadamard transform at each of fingers, by use of an M-ary quadrature coding scheme,...
6574460 Radiotelephone system for motor vehicles with a group antenna  
A radiotelephone system for motor vehicles, having a group antenna system with a plurality of antenna elements, and a mobile radiotelephone with a high-frequency input for receiving radio signals....
6574459 Multiple branch receiver system and method  
A receiver provides received analog signals to a plurality of channel branches, and on at least one of the channel branches, the frequency of the received analog signals is adjusted independent of...
6516206 Transceiver operation in radio system  
The invention relates to a method of implementing transceiver operation at a base station. In the method, at least two transmitter units (300, 302) in different sectors transmit signals at...
6486795 Universal transmitter  
A universal remote control radio frequency transmitter for use with garage door operators, gate operators and other barrier movement operators is programmable through the use of external switches....
6459885 Radio transceiver switching circuit  
A radio transceiver circuit which includes an antenna, a transmitter, a receiver, an antenna switching circuit for selectively connecting the transmitter and the receiver to the antenna, and a...
6415140 Null elimination in a space diversity antenna system  
A space diversity antenna system provided with dither circuitry in the signal path to one of the antennas to switch a circuit element in and out of the signal path at a high rate. The circuit...
Matches 1 - 50 out of 85 1 2 >