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)
12/2003
12/16/2003CA2158440C Method and apparatus for signal transmission and reception
12/11/2003WO2003103247A1 A method and system for multiple channel wireless transmitter and receiver with phase and amplitude calibration
12/11/2003WO2003103246A1 Receiver with selection between a decision feedback equalizer and a linear equalizer
12/11/2003WO2003103245A1 Adaptive thresholding algorithm for the noise due to unknown symbols in correlation based channel impulse response (cir) estimate
12/11/2003WO2003103244A1 Data transmission system
12/11/2003WO2003103201A1 Method and apparatus for receiving signal based on mimo cdma
12/11/2003WO2003103185A1 A receiving method based on mimo cdma
12/11/2003WO2003103170A2 Bandwidth adaptation rule for adaptive noise filter for inverse filtering with improved disturbance rejection bandwidth and speed
12/11/2003WO2003032555A3 Systems and methods for multi-pair atm over dsl
12/11/2003WO2003019889A3 Data reconstruction in a receiver
12/11/2003WO2002065662A3 Line interface a matching impedance coupled ro a feedback path
12/11/2003WO1999030457A3 Method and apparatus for variable bit rate clock recovery
12/11/2003US20030229747 PCI-X 2.0 receiver with initial offset for biased idle transmission line
12/11/2003US20030229461 Threshold setting apparatus for adjustably setting a threshold for use in identifying serial data from a baseband signal
12/11/2003US20030228005 High bandwidth data transport system
12/11/2003US20030227987 Decoding method and manchester decoder
12/11/2003US20030227985 Interference reduction for simulcast signals
12/11/2003US20030227968 Method and apparatus for blind decision feedback equalization
12/11/2003US20030227967 System and method for time-domain equalization in discrete multi-tone system
12/11/2003US20030227960 Method and apparatus for adaptive channel equalizaton using decision feedback
12/11/2003US20030227888 Method and apparatus for pilot estimation using suboptimum expectation maximization
12/11/2003US20030227866 Multi-path equalization for orthogonal frequency division multiplexing communication system
12/11/2003CA2487358A1 Receiver with selection between a decision feedback equalizer and a linear equalizer
12/11/2003CA2471626A1 Adaptive thresholding algorithm for the noise due to unknown symbols in correlation based channel impulse response (cir) estimate
12/10/2003EP1370037A2 PCM upstream data transmission server
12/10/2003EP1370017A1 Interference reduction for simulcast signals
12/10/2003EP1368944A1 Transmission of information on a training sequence
12/10/2003EP1368901A1 Dc offset correction scheme for wireless receivers
12/10/2003EP1367934A2 Devices, systems and methods for endocardial pressure measurement
12/10/2003EP1159786B1 Forward error correction on multiplexed cdma channels enabling high performance coding
12/10/2003CN1461549A A two stage equalizer for trellis coded systems
12/10/2003CN1461548A Method and device for Walsh-modulated self-adaptive linear equalisation
12/10/2003CN1461161A Interference eliminating method between basic stations of mobile communication system and correspondent mobile communication system
12/10/2003CN1461157A Channel estimation of spread apeutrum communication
12/10/2003CN1130883C Timing recovery sampling circuit
12/10/2003CN1130882C Method and equipment for channel impulse response estimation using received signal variance
12/10/2003CN1130881C Channel estimation arrangement
12/10/2003CN1130852C Equalizer with channel tracker switching
12/10/2003CN1130848C Digital control network system for mixed-mode transceiver and conflict-free communication method
12/09/2003US6662367 Poly-phase filters in multicarrier communication systems
12/09/2003US6662322 Systems, methods, and computer program products for controlling the error rate in a communication device by adjusting the distance between signal constellation points
12/09/2003US6662238 Integrated modem and line-isolation circuitry with command mode and data mode control and associated method
12/09/2003US6661858 DC restoration circuit for a radio receiver
12/09/2003US6661857 Rapid estimation of wireless channel impulse response
12/09/2003US6661854 Channel estimation by time multiplexed complementary sequences
12/09/2003US6661852 Apparatus and method for quadrature tuner error correction
12/09/2003US6661849 Multiple payload slicer system with prenormalization integer values
12/09/2003US6661847 Systems methods and computer program products for generating and optimizing signal constellations
12/09/2003US6661837 Modems, methods, and computer program products for selecting an optimum data rate using error signals representing the difference between the output of an equalizer and the output of a slicer or detector
12/09/2003US6661836 Measuring jitter of high-speed data channels
12/09/2003US6661761 Reproducing apparatus for optical disc recorded in high density
12/09/2003US6661727 Dynamic register with low clock rate testing capability
12/09/2003US6661282 Demodulation apparatus and method in a communication system employing 16-ary QAM
12/04/2003WO2003101067A1 Segment-wise channel equalization based data estimation
12/04/2003WO2003101065A1 Method and device for estimating the transfer function of a channel for the variable transmission of a multicarrier signal
12/04/2003WO2003101064A1 Method and device for estimating and compensating iq imbalance
12/04/2003WO2003101060A1 Diversity receiver and method for estimating signal quality
12/04/2003WO2003101059A1 Digital linear filter-type equalizer
12/04/2003WO2003101058A1 Time delay estimation for equalisation
12/04/2003WO2003101003A1 Reception device and reception method
12/04/2003WO2003100986A2 Data detection method for mimo-ofdm communication systems
12/04/2003WO2003100719A1 Passive data carrier with signal evaluation means for evaluating information of a self-clocking signal
12/04/2003WO2003084092A3 Precoding for a multipath channel in a mimo system
12/04/2003WO2003058845A3 Robust low complexity multi-antenna adaptive minimum mean square error equalizer
12/04/2003WO2003058824A3 A nuller with no satellite signal distortion
12/04/2003WO2003034648A3 A method and a device for controlling data extraction from a data stream containing at least one data packet
12/04/2003US20030225802 Enable generator EG, and method of mapping data using the EG
12/04/2003US20030224750 Method and system for multiple channel wireless transmitter and receiver phase and amplitude calibration
12/04/2003US20030224725 Digital television receiver converting vestigial-sideband signals to double-sideband AM signals before demodulation
12/04/2003US20030223762 Multilevel optical signals optimized for systems having signal-dependent and signal-independent noises, finite transmitter extinction ratio and intersymbol interference
12/04/2003US20030223520 System for clock and data recovery
12/04/2003US20030223517 Adaptive thresholding algorithm for the noise due to unknown symbols in correlation based channel impulse response (CIR) estimate
12/04/2003US20030223516 Sequential bezout space-time equalizers for MIMO systems
12/04/2003US20030223514 Channel estimator using one or more correlation reference vectors to eliminate data related noise
12/04/2003US20030223512 Systems and methods for adaptively decoding transmitted frames
12/04/2003US20030223505 Data transceiver with filtering and precoding
12/04/2003US20030223489 Receiver with a decision feedback equalizer and a linear equalizer
12/04/2003US20030223487 Measurement of jitter in digital communications signals
12/04/2003US20030223355 Channel estimation in a wireless communication system
12/04/2003US20030223353 Method and apparatus for decoding baseband orthogonal frequency division multiplex signals
12/04/2003US20030222713 Modulation scheme for switching amplifiers to reduce filtering requirements and crossover distortion
12/04/2003US20030222587 Universal lighting network methods and systems
12/04/2003CA2486723A1 Segment-wise channel equalization based data estimation
12/03/2003EP1367790A1 OFDM adaptive equalizer
12/03/2003EP1367788A1 Channel equaliser of OFDM receiver capable of adaptively equalizing OFDM signal according to state of channel
12/03/2003EP1367761A1 Measurement of jitter in digital communications signals
12/03/2003EP1367759A1 Method and system for interference suppression in a TDMA and/or FDMA transmission
12/03/2003EP1367752A1 Mobile communication system, multicarrier cdma transmitter, and multicarrier cdma receiver
12/03/2003EP1367704A2 Modulation scheme for switching amplifiers to reduce filtering requirements and crossover distortion
12/03/2003EP1367582A1 Modulation apparatus and method
12/03/2003EP1366609A1 Method for enhancing soft-value information
12/03/2003EP1366608A2 Equalising and decoding device for frequency-selective channels
12/03/2003EP1366417A2 Enhanced loopback testing of serial devices
12/03/2003CN1460331A Method of channel estimation and system for implementing method
12/03/2003CN1459948A Method for equalizing according to carrier in multi-carrier CDMA connected receiver
12/03/2003CN1130057C Method and device for blind equalizing of transmission channel effects on digital speech signal
12/03/2003CN1130025C Demodulator, clock recovery device, demodulation method and clock recovery method
12/02/2003US6658604 Method for testing and guaranteeing that skew between two signals meets predetermined criteria
12/02/2003US6658583 PWM control circuit, microcomputer and electronic equipment
12/02/2003US6658381 Methods and systems for robust frame type detection in systems employing variable bit rates
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