Patents
Sitemap › H04 - Electric communication technique › H04L - Transmission of digital information, e.g. telegraphic communication › H04L 25 - Baseband systems
Patents for H04L 25 - Baseband systems (55,083)
08/2003
08/13/2003CN1118169C Method for disturbance compensation of signal generated by discrete multitone-modulation and circuit arrangement for implementing said method
08/12/2003US6606719 Method and arrangement to estimate transmission channel characteristics
08/12/2003US6606359 Area-optimum rapid acquisition cellular multi-protocol digital DC offset correction scheme
08/12/2003US6606357 Carrier injecting waveform-based modulation scheme for reducing satellite transponder power requirements and earth terminal antenna size
08/12/2003US6606355 Channel coding in the presence of bit robbing
08/12/2003US6606352 Method and apparatus for converting between byte lengths and burdened burst lengths in a high speed modem
08/12/2003US6606351 Ingress protection in a communication system with orthogonal carriers
08/12/2003US6606350 Pulse transmission receiver with higher-order time derivative pulse generator
08/12/2003US6606328 Look ahead encoder/decoder architecture
08/12/2003US6606296 Data transmission method and radio system
08/12/2003US6606177 Driver circuit and optical-transmission module
08/12/2003US6605958 Precision on-chip transmission line termination
08/07/2003WO2003065674A1 Modulation by multiple pulse per group keying and method of using the same
08/07/2003WO2003065672A1 Transmission method which combines pulse position and phase modulation and allows more than one pulse to be active per time period
08/07/2003WO2003065671A1 Method and apparatus for combining phase shift keying and pulse position modulation
08/07/2003WO2003065670A1 Means and method of data encoding and communication at rates above the channel bandwidth
08/07/2003WO2003065669A1 Dynamic phase tracking using edge detection
08/07/2003WO2003065668A1 Fast settling data slicer comprising a low-pass filter with switchable cut-off frequency and a notch-filter
08/07/2003WO2003065667A1 Method and apparatus for implementing the connecting phase on a digital communications path utilizing tomlinson-harashima precoding
08/07/2003WO2003065666A1 Allocation of pilot signatures for channel estimation in a cellular radio communications system
08/07/2003WO2003065635A1 Reception of multicarrier spread- sprectrum signals
08/07/2003WO2003065618A1 Method for scrambling packet data using variable slot length and apparatus thereof
08/07/2003WO2003065611A1 Transmitting and receiving apparatus, radio communication system, and transmitting and receiving method
08/07/2003WO2003065600A1 Direct conversion receiver and dc offset reducing method
08/07/2003WO2003065597A2 High frequency network multiplexed communications over various lines using multiple modulated carrier frequencies
08/07/2003WO2003065568A2 Additive dc component detection included in an input burst signal
08/07/2003WO2003065341A2 Apparatus and method for interfacing a digital video signal having a tdms format with a plurality digital video interface receivers
08/07/2003WO2003065284A1 Method for transmitting data
08/07/2003US20030149991 Radio frequency characterization of cable plant and corresponding calibration of communication equipment communicating via the cable plant
08/07/2003US20030148749 DC offset cancel circuit
08/07/2003US20030147585 Equipments including transponder for optical fiber transmission
08/07/2003US20030147482 Single ended termination of clock for dual link DVI receiver
08/07/2003US20030147477 Circuit for detecting a center level of a FSK demodulated signal to correct same
08/07/2003US20030147476 Expectation-maximization-based channel estimation and signal detection for wireless communications systems
08/07/2003US20030147473 Digital signal transmitting device for switching a signal processor of a fault condition for a spare signal processor of a non-fault condition
08/07/2003US20030147461 Means and method of data encoding and communication at rates above the channel bandwidth
08/07/2003US20030147460 Block equalization method and device with adaptation to the transmission channel
08/07/2003US20030147428 Limiting amplifier modulator driver
08/07/2003US20030147422 Method for scrambling packet data using variable slot length and apparatus thereof
08/07/2003US20030147127 Amplitude balancing for multilevel signal transmission
08/07/2003US20030146800 Ultra-wideband impulse generation and modulation circuit
08/07/2003US20030146773 Transmission gate based signal transition accelerator
08/07/2003US20030146772 Termination pair for a differential driver-differential receiver input output circuit
08/07/2003CA2474372A1 Transmission method which combines pulse position and phase modulation and allows more than one pulse to be active per time period
08/07/2003CA2474363A1 Modulation by multiple pulse per group keying and method of using the same
08/07/2003CA2474329A1 Method and apparatus for combining phase shift keying and pulse position modulation
08/06/2003EP1333634A1 Receiver for GMSK and offset-QAM using a Viterbi decoder
08/06/2003EP1333633A1 Waveform shaping method and equipment
08/06/2003EP1333632A1 Allocation of pilot seqeunces for channel estimation in a cellular radio communication system
08/06/2003EP1333619A2 Transmitting and receiving apparatus
08/06/2003EP1333593A1 Power line transmission technical
08/06/2003EP1332613A1 Multi-standard channel decoder
08/06/2003EP1332602A1 Encoding method and system for reducing inter-symbol interference effects in transmission over a serial link
08/06/2003EP1332593A2 Pre-emphasis scheme
08/06/2003EP1332592A1 Joint dc offset and channel estimation by using a least squares (ls) algorithm
08/06/2003EP1332591A1 Method and devices for compensating for interferences by multipath reception
08/06/2003EP1332590A2 Line-driver with loopback protection
08/06/2003EP1332556A2 Method for overusing frequencies to permit simultaneous transmission of signals from two or more users on the same frequency and time slot
08/06/2003EP1332554A2 Automatic frequency control systems and methods for joint demodulation
08/06/2003EP1332552A2 Digital filter with state storage
08/06/2003CN1435014A Method and arrangement for iteratively improving a channel estimate
08/06/2003CN1434645A Device and method for estimating burst sygnal signal-to-noise ratio in global mobile communication system base station
08/06/2003CN1434618A Module block type terminal receviver for data transmission system capable of adjusting near-end crosstalk
08/06/2003CN1434576A Improved communication scheme suppressing leakage electromagnetic fields
08/06/2003CN1117430C Gain control method and circuit
08/05/2003US6604219 DC control of a multilevel signal
08/05/2003US6603831 Synchronous digital data transmitter
08/05/2003US6603827 Method and apparatus for digital symbol detection using medium response estimates
08/05/2003US6603826 Method and receiver for dynamically compensating for interference to a frequency division multiplex signal
08/05/2003US6603824 Method for demodulating a carrier wave modulated by a digital symbol sequence
08/05/2003US6603823 Channel estimator
08/05/2003US6603822 Communicating errors in a telecommunications system
08/05/2003US6603818 Pulse transmission transceiver architecture for low power communications
08/05/2003US6603811 Low complexity frequency domain equalizer having fast re-lock
08/05/2003US6603807 Isolator and a modem device using the isolator
08/05/2003US6603806 Method and apparatus for high data rate wireless communications over wavefield spaces
08/05/2003US6603805 Transceiver circuit transmitting/receiving a tenary pulse signal
08/05/2003US6603801 Spread spectrum transceiver for use in wireless local area network and having multipath mitigation
08/05/2003US6603749 Method for estimation of an impulse response of a signal transmission channel and mobile station
08/05/2003US6603348 Center tap level control for current mode differential driver
08/05/2003US6603329 Systems and methods for on-chip impedance termination
08/05/2003CA2317554C Device and method for detecting pcm upstream digital impairments in a communication network
08/05/2003CA2264808C Wireless atm metropolitan area network
07/2003
07/31/2003WO2003063436A1 Transmitter output stage for a two-wire bus
07/31/2003WO2003063369A2 A serial to parallel and parallel to serial data transceiver
07/31/2003WO2003036891A3 Channel estimation using a combination of correlation and least square error
07/31/2003WO2003028327A3 Efficient methods for filtering to avoid inter-symbol interference and processing digital signals having large frequency guard bands
07/31/2003WO2003026237A3 Fast computation of mimo decision feedback equalizer coefficients
07/31/2003WO2002095945A3 Method and apparatus for impedance matching in a transmission
07/31/2003WO2002078228A3 Receiver with recovery circuit using oversampling and majority decision
07/31/2003US20030145273 Coded modulation method, which takes tailbits and their coding into account
07/31/2003US20030144836 Method and apparatus for compressing and transmitting ultra high speed data
07/31/2003US20030144033 Multi-carrier communication method and multi-carrier communication apparatus
07/31/2003US20030143964 Signal transmission system
07/31/2003US20030142772 Fast skew detector
07/31/2003US20030142769 Channel estimator a pipelined interfence cancellation apparatus
07/31/2003US20030142762 Wireless receiver method and apparatus using space-cover-time equalization
07/31/2003US20030142759 Transmission system for reduction of amateur radio interference
07/31/2003US20030142742 Modulation by combined multi-pulse per group with simultaneous phase and time shift keying and method of using the same
07/31/2003US20030142741 Modulation by phase and time shift keying and method of using the same
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