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7623896 |
Wireless communication circuit and wireless communication apparatus using the same
When power to be transmitted varies, a control section instructs an AGC control section to control a gain of an IQ modulation processing section 6 in accordance with the power. A switch selects a...
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7623830 |
Auto-calibrating receiver and methods for use therewith
A voice, data and RF integrated circuit includes a processing module that generates at least one control signal that indicates a receive calibration mode. An RF transmitter generates a transmit...
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7620373 |
Apparatus and method for calibration of gain and/or phase imbalance and/or DC offset in a communication system
A radio frequency transceiver for off-line transmit and receive calibrations includes: a transmit pre-distortion module configured to receive a transmit calibration signal during a transmit...
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7620372 |
Communication device, method for controlling communication, game machine, and game system
A technology for realizing real-time frequency hopping in an environment containing a plurality of masters. A game machine includes a plurality of communication modules which carry out the...
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7620371 |
Transmitter signal strength indicator
A single chip radio transceiver includes circuitry that enables received wideband RF signals to be down-converted to baseband frequencies and baseband signals to be up-converted to wideband RF...
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7613429 |
NRD guide transceiver, download system using the same, and download memory used for the same
The invention aims at providing an NRD guide transceiver not requiring a change-over switch for transmission and reception, a download system being of a simple structure and capable of downloading...
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7610500 |
Link power saving state
Disclosed are embodiments of a method, apparatus and system for a low power state for a point-to-point link. During the low power state, the signal on both conductors of a differential transmit...
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7610065 |
Method and apparatus for antenna selection in a diversity antenna system for communicating with implantable medical device
A far-field radio frequency telemetry (RF) system for communicating with an implantable medical device includes a diversity antenna system. An antenna control circuit selects one or more antennas...
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7610022 |
Filter circuit with negative transconductance
Apparatus, systems, and methods implementing techniques for filtering signals are described. A filter circuit receives an input signal and produces a corresponding filtered signal. The filter...
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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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7606233 |
Method for micro-controller and DSP based data communication within a transceiver
The present invention provides a method for improved data communication and a transceiver employing the method. In one embodiment, the method includes generating data blocks to transmit to a second...
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7599679 |
Remotely configurable wireless intercom system for an establishment
A remotely configurable wireless intercom system and method for an establishment having a staff. A base station is connectable to a wide area communication network. A plurality of headsets are in...
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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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7599666 |
Communication system and method using transmit diversity
Influencing the transmission of signals from a transmitting device to a receiving device in a communication system comprising at least one transmitting device and at least one receiving device is...
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7599427 |
Micro range radio frequency (RF) communications link
A micro range RF data transmission system comprising at least one transmitter incorporated in a moving device and at least one receiver positioned along a fixed path that can be aligned to create a...
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7596356 |
On-chip baseband-to-RF interface and applications thereof
An on-chip baseband-to-RF interface includes a receive/transmit section, a control section, and a clock section. The receive/transmit section, when in a receive mode, provides the stream of inbound...
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7593696 |
Tunable radio frequency filter
The present invention provides a filter unit cell. The filter unit cell includes a variable capacitor coupled in series between first and second nodes and an inductor coupled in series between the...
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7593695 |
RF transceiver incorporating dual-use PLL frequency synthesizer
A dual-use PLL frequency synthesizer for use in a transceiver is capable of operating as a local oscillation generator in a receiving mode and as a transmitter in a transmitting mode. The PLL...
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7592898 |
Wireless communication systems, interrogators and methods of communicating within a wireless communication system
A wireless communication system includes an interrogator including a housing including circuitry configured to generate a forward link communication signal; communication circuitry configured to...
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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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7590201 |
Method for detecting signal in multiple input multiple output system and receiving device of multiple input multiple output system
The present invention relates to a method for detecting a signal in an MIMO system. In the method, a received signal is detected in a zero forcing (ZF) method, and a first detection interval is...
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7587223 |
Terminal for mobile phone and method for controlling the synchronism of terminal for mobile phone
In a mobile phone terminal, in which a sound, such as the audio, may be synchronized with a moving picture even in case a sound processor unit processing the sound, such as audio, is controlled by...
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7583989 |
Sliding-type hinge
A sliding-type hinge includes a base, a slider, and a sliding means adapted to slide the slider on the base. The sliding means includes a first torsion spring and a second torsion spring. The 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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7583935 |
Method and system for mitigating co-channel interference
A method of communicating data between a first transceiver and any of a plurality of second transceivers, wherein areas serviced by each of the plurality of second transceivers either overlap or...
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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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7583650 |
Frequency multiplexed architecture
A receiver ( 10 ) is arranged to simultaneously receive at least a first (S 1 ) radio frequency signal having a first frequency band ( 1 ) and a second radio frequency signal (S 3 ) having a second...
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7580683 |
Radio transceiver on a chip
An entire radio transceiver can be completely integrated into one IC chip. In order to integrate the IF filters on the chip, a heterodyne architecture with a low IF is used. A single, directly...
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7580679 |
Communication apparatus changing measuring methods of communication quality
A mode determination section receives control signals from a quality IF section, a quality IF section, and a quality IF section, and determines whether a W-LAN communication section, a personal...
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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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7574220 |
Method and apparatus for alerting a target that it is subject to sensing and restricting access to sensed content associated with the target
A method and apparatus for protecting sensed content and warning a target of sensing is disclosed. A first transceiver, (e.g., a network server), includes a database which defines at least one zone...
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7573948 |
Radio transmitter incorporating digital modulator and circuitry to accommodate baseband processor with analog interface
A radio frequency (RF) transmitter includes a digital radio processor and a baseband processor. A complex analog-to-digital converter (ADC) within the radio processor provides an analog interface...
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7567610 |
Frequency conversion circuit, radio frequency wave receiver, and radio frequency transceiver
A frequency conversion circuit of the present invention includes: (i) a first mixer for mixing the radio frequency signal having a frequency f RF with a first oscillation signal having a frequency...
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7565171 |
Radio base system, transmission directional control method, and transmission directional control program
A radio unit ( 2000 ) separates a signal from a specific terminal among signals from array antennas (# 1 -# 4 ) based on a reception weight vector calculated by a reception weight vector calculator...
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7561852 |
Integrated multimode radio and components thereof
An integrated multimode radio includes a multimode receiver and a multimode transmitter. The multimode receiver includes a shared receiver front-end, a receiver multiplexor, and a plurality of...
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7561851 |
System and method for calibrating modules of a wide-range transceiver
The present invention provides a method, system, and processor instructions for calibrating a modular wide-range microwave communication system. In an exemplary embodiment, the system includes a...
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7558583 |
System and methods of radio interference based localization in sensor networks
A method for radio interference based sensor localization. In one embodiment, the method has the steps of creating an interference signal from a first transmitter and a second transmitter,...
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7558536 |
Antenna/transceiver configuration in a traffic sensor
A sensor for obtaining vehicular traffic data is described. The sensor includes a housing having a front surface. The sensor also includes an antenna plate having an antenna ground surface and a...
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7555062 |
Method and device for delay-sensitive measurement of a signal
A method and device for detecting the amplitude and/or the phase position of an intensity-modulated signal, including the following: detecting an instant value of the intensity-modulated signal and...
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7554407 |
Multi-mode power amplifier with low gain variation over temperature
A multi-mode RF amplifier is described having at least a higher and a lower power path coupling an input to an output. At a pre-selected output power level, the higher power path is enabled while...
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7551900 |
Apparatus and method for transmitting call holding message in mobile communication terminal
A call holding voice message transmitting apparatus and method in a mobile communication terminal are disclosed that transmit voice data, preferably stored in the terminal, to a caller in a...
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7551899 |
Intelligent dialing scheme for telephony application
Digits entered by a user are compared against phone numbers maintained in a lists such as address book, phone book, most recent calls, and most often called lists, etc. A number in the lists having...
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7551891 |
Method for detecting UWB pulse sequences without local pulse generation
The invention relates to a method for transmitting at least one sequence of Np pulses over Np time windows, each pulse being enclosed within a predetermined time chip Tc. The method according to...
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7548593 |
Baseband compensation of an offset phase locked loop
A phase modulator faithfully reproduces higher frequency modulation using an offset phase-locked loop (OPLL) without passing excessive noise through an increased bandwidth of the OPLL. A quadrature...
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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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7545856 |
Current mode phase shifter, mixer and amplifier
An integrated circuit radio transceiver includes a phase shift block that is operable to produce a phase shifted current signal at an output of the phase shift block and a mixer with a low input...
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7545855 |
Phase shifter and current mode mixer
An integrated circuit radio transceiver comprises an integrated phase shift mixer for generating a phase and frequency shifted output signal to at least a portion of one of a transmitter or...
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7542734 |
Data transmission scheme in wireless communication system
The invention provides a data transmission solution in a telecommunication system. According to the invention, a data transmission scheme is selected for a first transceiver unit, which comprises a...
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7542728 |
Dual-function wireless data terminal
Apparatus for communication includes at least one RF receiver circuit, which is coupled to receive and downconvert first and second RF signals that are transmitted respectively over different,...
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7542727 |
Method for receiving a signal on a single multi-band antenna
A system and method for providing a global positioning system (GPS:) enabled antenna system are provided. The GPS enabled antenna may be used, for example, on a wireless communications device such...
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