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7612634 |
High frequency module utilizing a plurality of parallel signal paths
A high frequency module incorporates a layered substrate. The layered substrate has a bottom surface and a top surface. Terminals are disposed on the bottom surface. SAW filters and inductors are...
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7610060 |
Mobile wireless communication terminal and method of matching antenna in the same
The mobile wireless communication terminal includes a first antenna, a second antenna, a signal-level detector which detects a level of a signal having been transmitted from the second antenna and...
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7606553 |
Information processing apparatus with antenna switching function, communication apparatus, antenna switching control unit and computer-readable recording medium recording antenna switching control program
In an information processing apparatus such as a notebook type personal computer having radio communication functions, for communication units to simultaneously carry out transmission/reception...
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7606536 |
Temporal co-site interference reduction
The present invention is a method and system for managing a transmitter located in close proximity to a sensitive receiver. In an exemplary embodiment, the method may include recognizing incomplete...
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7599667 |
Wireless communication apparatus and semiconductor device
A wireless communication apparatus includes a mounting substrate having a duplexer, receiving and transmitting amplifiers individually connected to the duplexer, a processor unit having receiving...
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7596357 |
High-frequency switching circuit, high-frequency module, and wireless communications device
The present invention provides a high-frequency switching circuit comprising: two or more high-frequency switches SW 1 and SW 2 provided correspondingly to a plurality of communication systems...
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7590429 |
RF transceiver configuring for a MIMO communication
An RF transceiver includes a baseband processing module, a transmitter section, and a receiver section. The baseband processing module convert outbound data into a plurality of outbound symbol...
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7590390 |
Method and apparatus for signal power loss reduction in RF communication systems
Multiple power amplifiers in an RF front end are coupled to multiple antennas without diversity switching between the PAs and antennas. Diversity switches direct signals to broadcast by a selected...
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7589602 |
Antenna switch module
An antenna switch module between several radio-frequency transmit and/or receive paths including, between a common terminal on the antenna side and an access capacitor specific to each path, at...
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7587177 |
Electronically configurable transmit and receive paths for FDD wireless communication devices
Methods and systems are provided for allowing an FDD radio to be configured to operate in Rx-high/Tx-low or Rx-low/Tx-high modes of operation. In accordance with one aspect, this is achieved in an...
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7587176 |
Mode switching in transceiver of a mobile terminal
A mode switching method in a mobile communication system is provided. The method comprises providing a mode switching start point between an uplink signal and a downlink signal of a transceiver;...
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7586388 |
Filter module and communication apparatus
In a filter module, a common input/output portion of a switch circuit is set as a first port. A first filter arranged to pass a signal in a first frequency band is connected between a first...
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7583949 |
Radio wave receiving device and radio wave receiving circuit
A frequency switching signal for switching a reception frequency of an antenna based on a reception success or failure signal output from a detection circuit and a standard time code output from a...
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7583936 |
Circuit with reduced insertion loss and component comprising one such circuit
An electrical circuit has at least two parallel signal paths connected to one another on the antenna side and for which a band reject filter corresponding to the transmission range is implemented...
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7583934 |
Transceiver apparatus for use in a multi-frequency communication system, base station of a multi-frequency communication system, method for use of the transceiver apparatus, method of transceiving a multi-frequency signal in a multi-frequency communication system
In a transceiver apparatus for use in a multi-frequency communication system a multi-frequency antenna terminal operation allows antenna transmission and reception-modes to be combined. A frequency...
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7583931 |
Animal identification and entry control system
There is disclosed an animal identification and entry control system based on a radio frequency identification (RFID) system including an animal collar-mounted RFID tag, and RFID circuitry...
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7580006 |
Portable telephone
In a portable telephone according to the present invention, a display displays a block indicative of an operator, predetermined information and a pointer; the operator can be operated in directions...
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7577404 |
High-frequency device, high-frequency module and communications device comprising them
A high-frequency module constituted by an integral laminate for handling a plurality of transmitting/receiving systems having different passbands comprises (a) a switch module part for branching...
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7570973 |
Programmable mobile radiotelephone terminal
A programmable mobile phone terminal includes a transmitter stage, a receiver stage, a switch-over and adapter stage having an arrangement of passive structural elements connected to a plurality of...
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7567820 |
Scanning for network connnections with variable scan rate
A wireless communication terminal includes a radio frequency (RF) transceiver and a baseband processing circuit, which is arranged to detect an indication of a rate of movement of the terminal. The...
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7565116 |
High frequency module
A high frequency module comprises a layered substrate. Inside the layered substrate, a reception diplexer for processing reception signals and a transmission diplexer for processing transmission...
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7561853 |
Radio frequency switch
A switch that selectively changes radio frequency signals includes at least three FETs, which are connected in series. The source electrodes or drain electrodes arranged at an intermediate stage...
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7561005 |
High frequency front-end module and duplexer
A high frequency front-end module includes an antenna terminal ANT, a diplexer, high frequency switches, LC filters, and SAW duplexers. The SAW duplexer is defined by SAW filters and high-pass...
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7558556 |
Adaptive radio transceiver with subsampling mixers
An exemplary embodiment of the present invention described and shown in the specification and drawings is a transceiver with a receiver, a transmitter, a local oscillator (LO) generator, a...
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7555258 |
Integrated circuit device and low noise block down converter including same
A switch block 1 includes: N inputs; M outputs; N amplification sections each of which amplifies one of each pair of 2N input signals which are generated by dividing N input signals supplied to...
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7546093 |
Antenna unit for mobile terminal
An antenna unit for a mobile terminal comprises an antenna module rotatably coupled to a terminal body. The antenna module comprises a plurality of antennas disposed inside the antenna module. Each...
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7546091 |
High-frequency circuit and high-frequency device
A high-frequency circuit for branching high-frequency signals for pluralities of communications systems of different frequencies, which comprises a lowpass filter circuit disposed between first and...
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7546090 |
Method to reduce power consumption in a radio communication system and apparatus therefor
A slave radio station establishes communization with a master radio station by transmitting a signal intermittently, listening for a response, and saving power by deactivating its transmitter and...
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7546089 |
Switchable directional coupler for use with RF devices
The embodiments of the present invention provide a directional coupler switchable between a normal state and a bypass state. In one embodiment, the directional coupler comprises shunt switches for...
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7532867 |
Transceiver architecture for supporting multi-band RF
Transceiver architectures for supporting multi-band radio frequencies are disclosed. According to one aspect of the present invention, a number of processing channels are designed, each for one...
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7526257 |
Mobile communication terminal and cell search circuit
A mobile communication terminal includes a module configured to measure, at a first frequency, the reception quality of a radio signal transmitted from a base station serving the mobile...
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7526256 |
Transformer-based multi-band RF front-end architecture
An apparatus and method for allowing two different signal paths to be coupled to a multi-tap transformer balun. The multi-tap transformer has a first port, which is coupled to a single antenna, and...
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7522887 |
Wireless signal switching circuit and wireless communication apparatus
A wireless signal switching circuit for switching a plurality of wireless transmitter signals or a plurality of wireless receiver signals with low loss in a dual mode compatible mobile phone...
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7519390 |
Transmitter and receiver architecture for multi-mode wireless device
A multi-mode wireless device having a transceiver including a multi-mode transmitter and a multi-mode receiver. The transmitter can include a multi-mode transmit baseband portion configured to...
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7519383 |
Method for efficient calibration of EVM using compression characteristics
A method for estimating and measuring error vector magnitude (EVM) is provided by correlating a transmitter compression level to an EVM.
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7519334 |
***WITHDRAWN PATENT AS PER THE LATEST USPTO WITHDRAWN LIST***
Multi-mode I/O circuitry supporting low interference signaling schemes for high speed digital interfaces
A multi-mode I/O circuit or cell ( 10 ) is provided for transmitting and receiving data between ICs, where each IC contains at least one of the I/O circuits. Each data link includes transmitter...
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7519333 |
Radio architecture for use with frequency division duplexed systems
A radio such as a frequency division duplex (FDD) radio ( 100 ) has a first local oscillator (LO 1 I and LO 1 Q) that is set to coincide with the transmitter section's ( 126 ) center frequency or a...
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7519327 |
Athletic monitoring system and method
A system and method are disclosed for monitoring the athletic performance of a user while also providing the user with entertainment such as an outputting of music. A system that incorporates...
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7515894 |
System and method for providing a multiband antenna
A system and a method for wireless communications includes an antenna, a GPS circuit with a GPS matching circuit that is coupled to the antenna, a communications circuit with a communications...
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7515882 |
Apparatus, methods and articles of manufacture for a multi-band switch
The invention is directed to a multi-band switch having a transmitter switching section with a plurality of transmission ports, and a receiver switching section with a plurality of receiver ports,...
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7515881 |
Resonance frequency shift canceling in wireless hearing aids
Systems, devices and methods are provided to switch between transmit and receive modes in wireless hearing aids. Various aspects of the present subject matter relate to a communication system....
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7515880 |
Variable gain frequency multiplier
A variable gain frequency multiplier comprises a multiplier circuit and a control circuit configured to receive a power control signal, the power control signal being proportional to a power output...
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7515555 |
Wireless LAN transceiver and wireless LAN transmitting/receiving method
The present invention addresses a problem that switching antennas along with an unexpected variation of a received electrical field strength brings about a loss over a long period of data...
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7515193 |
Portable communication terminal switchably displaying pictures based on a plurality of video signal sources
A cellular phone having a plurality of cameras and being able to switch display of a picture without interrupting display for the camera is provided. Processes executed by a control unit of the...
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7512383 |
Transmit-receive switching in wireless hearing aids
Systems, devices and methods are provided to switch between transmit and receive modes in wireless hearing aids. One aspect relates to an apparatus for use within a communication system that has an...
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7502596 |
Mobile communication systems
A mobile communication system includes a base station connected to a backbone network, and a mobile station configured to communicate with the base station using a radio frequency. The system has a...
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7502592 |
Adaptive antenna apparatus provided with controller for controlling to select best demodulated signal
An adaptive antenna apparatus including a reception adaptive control circuit is provided. The reception adaptive control circuit adaptively controls respective received signals received by a...
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7499678 |
Antenna sharing device and wireless communication terminal using the same
A compact, inexpensive antenna sharing device meeting requirements in terms of transmitter distortion characteristic and ESD characteristic is provided which separates and combines signals...
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7499677 |
Low voltage differential signaling transceiver
A low voltage differential signaling transceiver includes a transmitter and a receiver, the transmitter having a first terminal in signal communication with a transmission line, a source resistance...
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7499676 |
Low voltage differential signaling transceiver
A low voltage differential signaling transceiver includes a transmitter and a receiver, the transmitter having a first terminal in signal communication with a transmission line, a source resistance...
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