Patents for H04L 25 - Baseband systems (55,083)
03/2001
03/15/2001WO2001019044A1 Device and method for compensating for propagation delay
03/15/2001WO2001019043A1 Determination of data rate, based on power spectral density estimates
03/15/2001WO2001019042A1 Method and device for the transmission of differential signals
03/15/2001WO2001019011A1 Combined equalization and decoding technique
03/15/2001WO2001018982A1 Method and apparatus for start-up procedure for digital and analog modems utilizing pcm
03/15/2001WO2001018964A1 Method and system for data transmission
03/15/2001WO2001018952A1 Distortion-compensated digital communications receiver and method therefor
03/15/2001DE19943337A1 Vorrichtung zum Regenerieren optischer Signale variabler Bitrate A device for regenerating optical signals of variable bit rate
03/15/2001DE19942688A1 Electronic circuit operating method
03/15/2001DE19934669A1 Transmission of radio signals between base station and mobile stations by estimating transmission characteristics of radio channels and using pre-emphasis accordingly
03/15/2001CA2317265A1 Multicarrier personal access communication system
03/14/2001EP1083715A2 Apparatus for the regeneration of optical signals of variable bit rate
03/14/2001EP1083669A1 Radio terminal device
03/14/2001EP1082845A1 Level control and adaptive filtering in cap receivers
03/14/2001EP1082833A2 Device for modulation and demodulation in a multi-carrier system
03/14/2001CN1287728A Communication device and method
03/14/2001CN1287448A Controlled oscillator in network of digital character timing recovery
03/14/2001CN1287413A Rake receiver with embedded decision feedback equalizer
03/14/2001CN1063303C Data scrambling method, data scrambling apparatus, data descrambling method, and data descrambling apparatus
03/14/2001CN1063300C Quadrature modulator with integrated distributed RC filters
03/13/2001US6202075 Second order LMS tap update algorithm with high tracking capability
03/13/2001US6201865 Digital access arrangement circuitry and method for connecting to phone lines having a DC holding circuit with switchable time constants
03/13/2001US6201843 Rapid acquisition dispersive channel receiver integrated circuit
03/13/2001US6201842 Device and method for detecting PCM upstream digital impairments in a communication network
03/13/2001US6201841 Distortion compensating device
03/13/2001US6201840 Method and apparatus for detecting data in magnetic recording using decision feedback
03/13/2001US6201839 Method and apparatus for correlation-sensitive adaptive sequence detection
03/13/2001US6201836 Method and apparatus for combining a Trellis coding scheme with a pre-coding scheme for data signals
03/13/2001US6201831 Demodulator for a multi-pair gigabit transceiver
03/13/2001US6201405 Output buffer circuit
03/08/2001WO2001017186A2 Subdimensional single-carrier modulation
03/08/2001WO2001017185A1 Estimation, in a rake receiver, of the rate of change of the channel
03/08/2001WO2001017149A1 Ofdm communication apparatus and method for propagation path estimation
03/08/2001WO2001017130A1 Communication terminal device and channel estimating method
03/08/2001WO2000072488A8 Digital subscriber's line transmitting method and device
03/08/2001WO2000016525A8 A system and method for sending and receiving data signals over a clock signal line
03/08/2001DE19928464A1 Data transmission time compensation method for inverse multiplexer compares transmission time difference between data fed along different ISDN channels
03/07/2001EP1081907A1 Windowing and frequency-domain equalisation in multicarrier receivers
03/07/2001EP1081906A2 Multicarrier receiver with channel estimation
03/07/2001EP1081905A2 Equalisation in an ADSL receiver
03/07/2001EP1081904A2 Dual mode receiver
03/07/2001EP1081868A2 Supporting an E2PRML-type channel and an EPRML-type channel with the same trellis structure
03/07/2001EP1081865A2 Coding apparatus and method, decoding apparatus and method, and recording medium
03/07/2001EP1080579A2 Scalable audio coder and decoder
03/07/2001EP1080567A1 Dual direction channel estimator
03/07/2001EP1080566A1 Apparatus and methods for variable delay channel tracking
03/07/2001EP1080542A2 System and method for masking quantization noise of audio signals
03/07/2001EP1080462A2 System and method for entropy encoding quantized transform coefficients of a signal
03/07/2001EP1079758A1 Forward-backward channel interpolator
03/07/2001EP0715746B1 Communication system and method
03/07/2001CN1286858A Method for boubling levels of coding
03/07/2001CN1286853A TDMA wireless telephone system with independently tracked demodulation parameters
03/07/2001CN1286826A Front end interface circuit and method of tuning same
03/07/2001CN1286541A Orthogonal frequency-division multiplexing communication apparatus and propagation path estimating method
03/06/2001US6198816 Capacitively coupled ring detector with power provided across isolation barrier
03/06/2001US6198785 Autobaud rate detection and adjustment
03/06/2001US6198779 Method and apparatus for adaptively classifying a multi-level signal
03/06/2001US6198777 Feher keying (KF) modualtion and transceivers including clock shaping processors
03/06/2001US6198776 Device and method for precoding data signals for PCM transmission
03/06/2001US6198749 System for inverse multiplexing analog channels
03/06/2001US6198585 Digital signal recording apparatus, and related method
03/06/2001US6198559 Automatic delay compensation for generating NRZ signals from RZ signals in communications networks
03/06/2001US6198307 Output driver circuit with well-controlled output impedance
03/01/2001WO2001015399A1 Method and apparatus for computing prefilter coefficients
03/01/2001WO2001015398A1 Digital decision feedback equalizer (dfe) baseband receiver having additional preshoot compensation
03/01/2001WO2001015332A1 Adaptive channel estimation in a wireless communication system
03/01/2001WO2000057570A3 Line reflection reduction with energy-recovery driver
03/01/2001DE19939594A1 Digitaler Basisbandempfänger Digital baseband receiver
02/2001
02/28/2001EP1078520A1 Data processing device
02/28/2001EP1078502A2 Ofdm frame synchronisation and equalisation system
02/28/2001EP1078497A1 Method and apparatus for a data transmission of 100 mbps in a terminal
02/28/2001EP1078496A1 Ethernet switch in a terminal for a wireless metropolitan area network
02/28/2001EP1078495A1 Method and apparatus for synchronizing fast ethernet data packets to radio frames
02/28/2001EP1078494A1 Adaptive countermeasures for wireless communication of fast ethernet data packets
02/28/2001EP1078493A1 Method and apparatus for transporting ethernet data packets via radio frames
02/28/2001EP1078476A1 Method and apparatus for determining spatial signatures for calibrating a communication station having an antenna array
02/28/2001EP1078471A1 Method and apparatus for accurate synchronization using symbol decision feedback
02/28/2001CN1285972A Digital modulation employing single sideband with suppressed carrier
02/28/2001CN1285659A Local parallel grid decoder and method thereof
02/27/2001US6195764 Data encoder/decoder for a high speed serial link
02/27/2001US6195702 Modem for maintaining connection during loss of controller synchronism
02/27/2001US6195398 Method and apparatus for coding and communicating data in noisy environment
02/27/2001US6195397 Signal transmission and reception device for new wiring system
02/27/2001US6195386 Parallel decision feedback equalizer
02/27/2001US6195385 HTU-C clocking from a single source
02/27/2001US6195384 Method and apparatus compensating for effects of digital loss insertion in signal transmission between modems
02/27/2001US6194979 Ball grid array R-C network with high density
02/27/2001US6194978 Interrupt modulation method and apparatus
02/27/2001US6194977 State variable-based table-driven modulation signal generation
02/27/2001US6194949 Driver circuit for high speed data
02/27/2001US6194934 Circuit arrangement for regenerating an input signal containing digital data sequences
02/22/2001WO2001013596A1 Digital impairment compensation for v.90 modem
02/22/2001WO2001013595A1 Method for channel estimation in a radio communication system whereby the channel measuring sequences are formed by cyclic derivation of basic sequences
02/22/2001WO2001013562A2 A high speed burst-mode digital demodulator architecture
02/22/2001WO2001013556A1 Method and apparatus for combining a plurality of 8b/10b encoded data streams
02/22/2001WO2001013518A1 Chaotic carrier pulse position modulation communication system and method
02/22/2001WO2001013516A2 Decision feedback equalizer and precoder ramping circuit
02/22/2001DE19935480A1 Verfahren zur Schätzung der Kanalimpulsantworten eines Mobilfunkkanals Method for estimating the channel impulse responses of a mobile radio channel
02/22/2001CA2382053A1 Method and apparatus for combining a plurality of 8b/10b encoded data streams
02/21/2001EP1076987A1 Methods and apparatus for verifying transmit power levels in a signal point limited transmission system