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7620378 |
Method and system for frequency up-conversion with modulation embodiments
A method and system is described wherein an information signals is gated at a frequency that is a sub-harmonic of the frequency of the desired output signal. In the modulation embodiments, the...
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7620127 |
High availability digital radio architecture
The present invention is a high availability digital radio architecture which includes an analog interface subsystem and a baseband digital processing subsystem. The analog interface subsystem...
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RE40978 |
Communication system
At the transmitter side, carrier waves are modulated according to an input signal for producing relevant signal points in a signal space diagram. The input signal is divided into, two, first and...
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7616696 |
System and method to increase sector throughput in a multi-carrier operation
A multicarrier base transceiver system includes first control circuitry adapted to receive first control data and voice data from a communications network and arrange the received data into a...
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7616694 |
Noise free transceiver circuit
A noise free transceiver circuit includes a communication line, a power source line, a ground line, an output transistor having output terminals connected between the communication line and the...
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7616682 |
Method and device for chronologically synchronizing a location network
Chronologically synchronizing a unique positing signal generated by a positioning-unit device at a known location with a reference positioning signal generated by a reference transmitter at a known...
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7616627 |
Techniques for high definition audio modems
A system, apparatus, method and article for high definition audio modems are described. The apparatus may include a communications path comprising a communications bus and buffers, a codec to...
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7613270 |
System and method for adaptive multi-rate (AMR) vocoder rate adaptation
The present invention includes a time-division-multiple-access (TDMA) communication system having a base station and at least one mobile station, each transmitting and receiving an analog...
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7613264 |
Flexible sampling-rate encoder
A method for implementing a flexible sampling-rate encoder, comprising the steps of (A) sampling an input signal at a regular time-interval to produce sampled data, (B) generating a pseudo-random...
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7613244 |
System for communicating channel quality information
In transmitting channel quality information (CQI) by a mobile station (MS) in a communication system, the mobile station receives from a base station (BS) information of an allocation of a CQI...
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7613237 |
Built-in test feature to facilitate system level stress testing of a high-speed serial link that uses a forwarding clock
A method of ensuring robust operation of a differential serial link is provided. The method provides a first integrated circuit having 1) a phase generator constructed and arranged to provide a...
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7613234 |
Near-end, far-end and echo cancellers in a multi-channel transceiver system
A transceiver according to the present invention receives data from a plurality of frequency separated transmission channels from a complementary transmitter and includes an interference filter for...
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7613233 |
Method and controller for controlling communication resources
A method, an arrangement and a controller are provided for controlling communication resources, such as spatial and temporal communication resources of a telecommunications system. A performance...
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7613222 |
Wideband communication method
A communication method includes establishing a wideband communication link between a first device and a second device, transmitting a first set of consecutive data bits from the first device to the...
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7609792 |
Multiple-input multiple-output multichip transceiver with correlated clock signals
A multichip transceiver operates as part of a multiple-input multiple-output communication system. First receiver circuitry on a first integrated circuit processes radio-frequency (RF) signals...
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7607052 |
Physical coding sublayer for a multi-pair gigabit transceiver
A physical coding sublayer (PCS) transmitter circuit generates a plurality of encoded symbols according to a transmission standard. A symbol skewer skews the plurality of encoded symbols within a...
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7606874 |
Network system, method and apparatus for processing information, and control program
Property information of a driver is newly set or updated via a simple operation on a network. First, property information is created. When a driver is installed or updated, the created property...
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7606330 |
Dual-rate single band communication system
A system, method, and apparatus for a multiple data rate communication system is presented herein. The communication system receives data samples that are either sampled at a narrowband rate or a...
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7606288 |
Burst spread spectrum radio system and method for asset tracking and data telemetry
A system for wireless asset tracking is disclosed. The system includes a plurality of mobile devices. Each mobile device performs two spreading operations with two distinct PN codes, a first PN...
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7602842 |
Digital signal transmission system
In a system for transmitting digital signals between two equipment units of a mobile radio network in accordance with a digital transmission protocol, the equipment units are interconnected by an...
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7602696 |
Adaptive guard intervals in OFDM systems
Dynamic guard interval adaptation is provided for devices having differing delay spreads in an OFDM communication system to reduce the guard intervals, with adaptation controlled by either the...
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7600178 |
Methods for the determination of FEC parameters in DMT based xDSL systems in the presence of system imposed constraints
The present invention provides procedures for computing Forward Error Correction (FEC) parameters given a set of constraints on maximum interleaver memory, maximum interleaver depth, maximum...
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7599428 |
Frequency-division multiplexing transceiver apparatus and method
A frequency-division multiplexing transmission apparatus that transmits data at a frequency spectrum specific to a mobile station in which a π/4-continuous-phase-rotation unit performs phase...
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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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7593457 |
Transceiver system and method having a transmit clock signal phase that is phase-locked with a receive clock signal phase
A transceiver system is disclosed that includes a plurality of transceiver chips. Each transceiver chip includes one or more SERDES cores. Each SERDES core includes one or more SERDES lanes. Each...
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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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7590182 |
Method and apparatus for utilizing channel state information in a wireless communication system
Techniques for transmitting data from a transmitter unit to a receiver unit in a multiple-input multiple-output (MIMO) communication system. In one method, at the receiver unit, a number of signals...
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7590168 |
Low complexity high-speed communications transceiver
A communication system is disclosed that allows high data-rate transmission of data between components. N-bit parallel data is transmitted in K-frequency separated channels on the transmission...
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7587222 |
Baseband / RFIC interface for high throughput MIMO communications
Analog signal paths are utilized between a baseband processor and a radio front end to support high throughput communications for a multiple in multiple out radio transceiver that support...
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7586989 |
Method and system for generating beam-forming weights in an orthogonal frequency division multiplexing network
A method of generating beam-forming weights in an orthogonal frequency division multiplexing network is provided. The method includes generating a plurality of sub-bands. Each sub-band comprises a...
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7583937 |
Digital interface and related event manager for integrated circuits
In one embodiment, the present invention includes a method for receiving at a transceiver from a baseband processor digital control information that includes both event and schedule information,...
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7583747 |
Method of systematic construction of space-time constellations, system and method of transmitting space-time constellations
Space-time code, and methods for constructing space-time codes are provided. The space-time coder performs a respective linear transformation on each of P sets of K modulated symbols of a modulated...
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7583735 |
Methods and systems for handling underflow and overflow in a software defined radio
Systems and methods for handling buffer overflows and underflows in a software defined radio are presented. A communications system comprises one or more radio head interface modules and a call...
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7583725 |
Dynamically reconfigurable adaptive communication device and system
Method and apparatus for transmission of information is described. A first transceiver has transmitter reconfigurable logic and a second transceiver has receiver reconfigurable logic. The first...
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7583724 |
Low-power mixed-mode echo/crosstalk cancellation in wireline communications
A signal processing system includes an AGC and pre-echo cancellation system for receiving an analog signal, amplifying signal magnitude (over all frequencies) to a pre-determined level by AGC, and...
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7580465 |
Low speed access to DRAM
Embodiments provide access to a memory over a high speed serial link at slower speeds than the high speed serial links regular operation. An embodiment may comprise a memory apparatus with a...
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7577189 |
Selectable hybrid circuitry for transmission systems and method therefor
A method is provided that includes selectively engaging impedance circuits one at a time from a plurality of selectable impedance circuits in-line with a communication channel. Each of the...
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7573945 |
System and method for joint maximal ratio combining using time-domain based signal processing
A spatial signal processing system and method are provided to optimize the received signal-to-noise ratio (SNR) at a first radio communication device based on the transmit filter at another radio...
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7573910 |
Wireless device with dynamic fragmentation threshold adjustment
A wireless communication device includes an input/output terminal. A memory is configured to store parameters relevant to a wireless communication protocol. A modem is coupled to the input/output...
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7570705 |
GMSK modulation using a dual-port memory
A GMSK modulator includes a dual-port memory, an address generator and a signal provider, where the dual-port memory respectively outputs in-phase and quadrature phase waveform data to first and...
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7570688 |
Non-chronological system statistics
A communications device apparatus and method is detailed that allows for improved system statistics gathering of network communication links, dataports, and system status. The improved...
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7570685 |
System, method and apparatus for crosstalk cancellation
The present invention effectively cancels echo, near-end crosstalk and far-end crosstalk. A FEXT canceller is placed at the transmitter rather than at the receiver according to an aspect of the...
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7570599 |
Adaptively applying a target noise margin to a digital subscriber line (DSL) loop for DSL data rate establishment
Methods, systems, and computer program products adaptively apply a target noise margin to a DSL loop to establish a DSL data rate on the DSL loop. A method involves receiving performance data...
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7567758 |
Transceiver module and integrated circuit with multi-rate eye openers and bypass
A transceiver module having intergrated eye diagram opening functionality for reducing jitter is describe. The transceiver module may transmitter eye opener and a receiver eye opener integrated in...
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7567629 |
Multiphase clock recovery
The invention represents a parallel and distributed approach to clock recovery based on multiple mutually phase shifted sample clock signals (åS) defining a set of orthogonal clock phases. The...
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7567612 |
SDMA communications with non-immediate block acknowledgment
In Spatial Division Multiple Access (SDMA) communications, mobile devices that are transmitting to a base substantially simultaneously during a predetermined communications phase may wait until...
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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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7565113 |
Method and apparatus to resist fading in mimo and simo wireless systems
In a wireless communication system the receiver includes a first plurality of receive chains and a second plurality of antennas. Each receive chain is selectively connectable to selected antennas....
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7564904 |
Apparatus for and method of detection of powered devices over a network
A novel mechanism for detecting the presence of powered devices over a network. A unique, infinite pseudo-random sequence of pulses are generated and transmitted over the network to the link...
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7564893 |
Test system and method for parallel modulation error measurement of transceivers
A test system is capable of performing parallel modulation error measurement of transceivers using a loop-back configuration. Each transceiver includes a transmitter and a receiver. A signal...
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