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6600481 |
Data entry apparatus and method
A pager capable of origination of and transmission of messages. The pager, in one embodiment, features two-way communication capability and stores both a transmit and receive antenna within a...
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6597730 |
Satellite communication array transceiver
A satellite communications system ( 10 ) that employs an array of separate and easily deployable antennas ( 12 ) for transmission and reception purposes to accommodate high data rate transmissions....
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6594304 |
Adaptive configurable class-A/class-B transmit DAC for transceiver emission and power consumption control
A power efficient and reduced electromagnetic interference (EMI) emissions transmitter for unshielded twisted pair (UTP) data communication applications. Transmit data is processed by a digital...
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6590872 |
Receiver with parallel correlator for acquisition of spread spectrum digital transmission
A receiver of a handset transceiver, in a wireless telephone system having a plurality of wireless handset and a base unit having a base transceiver. Each handset has a handset transceiver for...
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6584159 |
Mixed-mode next/echo canceller for pulse amplitude modulated (PAM) signals
A mixed-mode crosstalk canceller is disclosed that performs crosstalk cancellation in the continuous time domain. The disclosed mixed-mode crosstalk canceller processes the pulse amplitude...
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6580760 |
Line drive architecture with programmable gain and drive
In general, the line driver is defined by an input and output stage wherein the input stage is identified by the deriving of the open loop gain of a preamplifier and the output stage is defined by...
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6577677 |
Method and apparatus for analog bias current optimization
An analog bias current optimization circuitry in a transceiver of a data communication system is capable of controlling the amount of a bias current of each of analog circuits. The analog bias...
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6574266 |
Base-station-assisted terminal-to-terminal connection setup
A system and method for establishing ad hoc communication sessions between remote communication terminals is disclosed. A base station transmits a beacon signal including information about the...
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6570911 |
Method and apparatus for controlling modem data pump parameters based on processor loading
A method and apparatus control modem data pump parameters based on processor loading. A first set of modem data pump parameters is generated based on characteristics of a telephone line to achieve...
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6570912 |
Hybrid software/hardware discrete multi-tone transceiver
A hybrid modem or transceiver includes communication hardware that transforms time domain samples of a received signal to frequency domain information. The communication hardware transfers the...
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6563862 |
Digital variable symbol rate modulation
A wireless telephone system having a plurality of wireless handsets and a base unit, the base unit having a base transceiver. Each handset has a handset transceiver for establishing a wireless link...
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6560274 |
Transceiver
A (mobile) transceiver can be switched into different equipment states, and is provided with an equipment state in which supplementary functions (appointment calendar, games, etc.)—which do not...
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6560290 |
CMOS driver and on-chip termination for gigabaud speed data communication
New very high-speed CMOS techniques are used to achieve a CMOS driver operating at gigabaud speeds. Such a driver may be manufactured more easily than drivers that use GaAs or bipolar techniques...
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6556097 |
Method and apparatus for distribution of power in a media converter system
A method and apparatus are disclosed for distributing power in a media converter system. The method involves converting an input voltage to an intermediate voltage and transmitting the intermediate...
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6556622 |
Seamless transition between communication characteristics of communication devices
A communication system that includes a first modem and a second modem that establishes a communication link between the first modem and the second modem. The communication link has a first set of...
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6553076 |
Mixed mode transceiver digital control network and collision-free communication method
A mixed mode transceiver digital control network system is disclosed as including at least two nodes/transceivers connected with a DC power source and a cored inductor via a bus, in which each...
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6553040 |
Method and apparatus for upstream burst transmission synchronization in cable modems
A system for synchronizing the upstream burst transmission in a cable system to a time specified by the cable head end is disclosed. The system includes a free running counter within a cable modem...
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6553066 |
Time error compensation arrangement and multi-carrier modem comprising the arrangement
A time error compensation arrangement (TCOMP) that compensates for a time error (ε, Δk) between a transmitter sample clock in a multi-carrier transmitter and a receiver sample clock (CLK) in a...
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6553060 |
Method and apparatus for dynamic spectrum allocation
A transceiver device ( 52 or 10 ) operates as a source of a data transmission in a communication system ( 50 ) capable of dynamically allocating spectrum for transmission of the data transmission...
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6549567 |
Full duplex ultrawide-band communication system and method
An impulse radio transceiver for full duplex ultrawide-band communications. The transceiver comprises an impulse radio transmitter that transmits impulse radio signal pulses, an impulse radio...
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6549566 |
Bandwidth reduced multi carrier wireless transceiver and method thereof
The present invention relates to a high efficiency Multi Carrier wireless transceiver and a method thereof. The object of the present invention is to provide the high efficiency wireless...
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6545532 |
Timing recovery circuit in a QAM demodulator
A timing recovery circuit in a QAM demodulator which uses a symbol rate continuously adaptive interpolation filter. The method of interpolation used in the present invention is defined as a...
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6542722 |
Method and system for frequency up-conversion with variety of transmitter configurations
A method and system is described wherein a signal with a lower frequency is up-converted to a higher frequency. In one embodiment, the higher frequency signal is used as a stable frequency and...
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6542465 |
Method for flow control in asymmetric digital subscriber line devices
A method for flow control in asymmetric digital subscriber line (“ADSL”) devices. The method includes flow control that adapts to changes in line conditions such as noise signals,...
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6539052 |
System for accelerating the reconfiguration of a transceiver and method therefor
A system and method for accelerating the reconfiguration of a field programmable radio frequency communication system having transmitter and receiver modes of operation, by outputting the data...
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6539051 |
Parallel framer and transport protocol with distributed framing and continuous data
A method and system for serially communicating a stream of data characters having bit-interleaved framing information. One embodiment discloses a method for interleaving a single bit of a frame...
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6535549 |
Method and apparatus for carrier phase tracking
A method and telecommunication system for tracking the carrier phase of a received signal includes the addition of a pilot signal to the data component of the signal prior to modulation and...
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6529547 |
Storage and reproduction method and apparatus
Digital audio recording equipment is used to record modulated signals, such as the RF test signals generated by test modems. If the modulated signals are outside the audio frequency range, they are...
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6522701 |
Method and apparatus for extracting received digital data from a full-duplex point-to-point signaling channel using sampled-data techniques
A computer system couples multiple function units using channels having full-duplex, low power, point-to-point interconnect. Each function unit couples to the channel via a Channel Interface Block...
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6519279 |
Transceiver circuitry, portable communication device and method for performing radio communication
Transceiver circuitry 1 comprises a first portion 10,20,30,41,50,100, having a first modulation means 41 operating at a first order of modulation, for transmitting and receiving voice...
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6516023 |
System and method of downconversion where the received signal is downconverted
A system and method for simultaneous transmission and receival where the received signal is downconverted in a downconverting unit by using a portion of the transmitted modulated signal as LO for...
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6507611 |
Transmitting apparatus and method, receiving apparatus and method, and providing medium
The invention intends to decode and reproduce digital audio signals in real time. A transmission rate of a transmission line is detected, and a selection instructing unit instructs, to an encoding...
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6507607 |
Apparatus and method for recovering a clock signal for use in a portable data carrier
A portable data carrier includes a radio frequency (RF) receiving circuit tuned to receive power signals on a carrier frequency, f c . The portable data carrier further includes a processor that...
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6507608 |
Multi-line ADSL modulation
A system and method are disclosed for transmitting data over multiple twisted pairs and receiving the data at a single receiver. In one embodiment, data is transmitted over an additional channel...
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6504863 |
Method and apparatus for adaptive bit resolution in a digital receiver and digital transmitter
A transceiver includes a receiver and a transmitter. The receiver includes an analog-to-digital conversion device for converting a received analog signal to digital form, and the transmitter...
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6504866 |
System and method for eliminating companding conversion distortion on international modem calls
A data communication system and method that reduces conversion distortion on data calls between locations that encode telephone signals according to different conversion standards is disclosed. The...
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6496535 |
Method and system for effective channel estimation in a telecommunication system
A method and system is provided for estimating a first wireless communication channel (FWCC) transmitting a data stream from a first antenna system (FAS) to a second antenna system (SAS) in a...
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6493408 |
Low-jitter data transmission apparatus
For restraining jitter amount of a transmission clock signal ( 16 ) generated by a digital PLL ( 8 ), a data transmission apparatus comprises a {fraction (1/24)} clock generator ( 6 ) for dividing...
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6490328 |
High speed data transceiver in harsh wiring networks
A digital signal communication system is described which can operate in harsh wiring networks. The signal processor includes a transmitter circuit and a receiver circuit for transmitting and...
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6487239 |
Method and apparatus for message communication
A method and an apparatus for performing message communication accurately at high rate even when the communication line is busy. When the communication line between the message transmitting side...
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6480551 |
Signal processing device and method for switching signal processors thereof
A digital broadcast program broadcast with a first network is transmitted to a second network. A tuner 41 selects digital broadcast signal having a predetermined transmission frequency and ECC...
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6480553 |
Gaussian frequency-shift keying transciever for ISM wideband communication
A GFSK (Gaussian Frequency Shift Keying) radio transceiver is provided for ISM (Industrial Scientific and Medical) wideband communication. The GFSK radio transceiver includes a transmitter for...
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6473469 |
Local communication system and apparatus for use therein
A local area network is based on a ring of twisted pair cable links (UTP), each carrying at least 1.4 Mbps gross data rate. Each station on the network includes an encoder and a following station...
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6470177 |
Adaptive sectorization
The present invention relates generally to the problems associated with sectorization of cells in cellular communications systems, and more particularly to interference between sectors. The...
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6470053 |
Methods and arrangements for transmitting data over twisted pair wire using RF modulation techniques
Methods and arrangements are provided for allowing various devices to communicate data over standard twisted pair wire within a confined region, such as a home environment. The methods and...
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6470005 |
Transceiver prerotation based on carrier offset
A wireless telephone system having a plurality of wireless handsets and a base unit, the base unit having a base transceiver. Each handset has a handset transceiver for establishing a wireless link...
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6470055 |
Spectrally efficient FQPSK, FGMSK, and FQAM for enhanced performance CDMA, TDMA, GSM, OFDN, and other systems
Spectral efficient transmitters-receivers (transceivers), modulation-demodulation (Modem) methods, architectures, structures and implementation technologies for enhanced performance and increased...
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6466989 |
Automatic network connection device for wiring to network cable
A network connection device having internal circuitry capable of wiring correctly to a network cable is described. The network connection device includes an interface circuit, a switching array and...
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6466613 |
Communications transceiver utilizing a single filter
A communications transceiver constructed to minimize the additional external components required for interfacing to the communications medium. The invention includes a communications transceiver...
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6463095 |
IC card radio modem and communication system using the same for communicating with a plurality of different infrastructures
An IC card radio modem includes an IC card unit storing infrastructure type information in a memory, a plurality of infrastructure-compatible units connected to the IC card unit at multiple points...
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