Patents
Sitemap › H04 - Electric communication technique › H04L - Transmission of digital information, e.g. telegraphic communication › H04L 27 - Modulated-carrier systems
Patents for H04L 27 - Modulated-carrier systems (89,721)
10/2003
10/23/2003WO2003088608A1 Method for retrieving information transmitted with a signal over a signal channel and corresponding signal processing apparatus
10/23/2003WO2003088549A2 Access burst detector correlator pool
10/23/2003WO2003088540A1 Phase sequences for timing and access signals
10/23/2003WO2003088539A1 Radio transmitter apparatus, radio receiver apparatus, and method thereof
10/23/2003WO2003088538A1 Receiver and its receiving method
10/23/2003WO2003088537A1 Multi-carrier communication device and multi-carrier communication method
10/23/2003WO2003088515A1 Path searcher using reconfigurable correlator sets
10/23/2003WO2003088509A2 Data-directed frequency-and-phase lock loop for decoding an offset-qam modulated signal having a pilot
10/23/2003WO2003088493A1 Apparatus and method for symbol timing recovery
10/23/2003WO2003088492A1 Data-directed frequency-and-phase lock loop
10/23/2003WO2003088491A1 Data-directed frequency acquisition loop
10/23/2003US20030199255 Contactless IC card system
10/23/2003US20030199252 Apparatus and method for reducing message collision between mobile stations simultaneously accessing a base station in a CDMA cellular communications system
10/23/2003US20030198310 Block oriented digital communication system and method
10/23/2003US20030198305 Co-channel interference receiver
10/23/2003US20030198300 Waveforms for envelope tracking transmitter
10/23/2003US20030198299 Multicarrier modulation with data dependent frequency-domain redundancy
10/23/2003US20030198253 Block size detection for MPSK signaling
10/23/2003US20030198217 Spectrally compatible mask for enhanced upstream data rates in DSL systems
10/23/2003US20030198178 Digital subscriber line (DSL) modems supporting high-speed universal serial bus (USB) interfaces and related methods and computer program products
10/23/2003CA2480750A1 Access burst detector correlator pool
10/23/2003CA2480486A1 Path searcher using reconfigurable correlator sets
10/22/2003EP1355467A1 Orthogonal frequency division multiplexing (OFDM) system with channel transfer function prediction
10/22/2003EP1355466A2 Information transfer using frequency shift keying
10/22/2003EP1354453A1 Method for transmitting a biorthogonal frequency multiplex signal/synchronous modulation (bfdm/sm) signal
10/22/2003EP1354398A2 Quadrature modulator and demodulator
10/22/2003EP1354274A2 Serial link architecture
10/22/2003EP1210766B1 Automatic gain control loop for frequency conversion of quadrature signals
10/22/2003EP1203454B1 Modulator-demodulator
10/22/2003EP1181771B1 Broadcast transmission system with distributed correction
10/22/2003EP0867066B1 Digital calibration of a transceiver
10/22/2003EP0737380B1 A wireless digital synchronized diversity receiver
10/22/2003CN1451237A Method for determining parameters of an OFDM and associated receiver
10/22/2003CN1451218A Device and method for adjusting input gain for multiple signal formats in a data network
10/22/2003CN1451202A Frequency modulator using a waveform generator
10/22/2003CN1451140A Method and circuit for providing interface signals setween integrated circuits
10/22/2003CN1450770A Nonlinear distortion compensator
10/22/2003CN1125553C Communication apparatus for multicarrier communication system and method for peak power control therein
10/22/2003CN1125552C Frequency-shift key-control signal receiver
10/22/2003CN1125542C Hybrid and all digital FM in-band-on-channel digital audio broadcasting method and system
10/22/2003CN1125536C Automatic impedance matching circuit and method
10/21/2003US6637003 Viterbi decoder and synchronism controlling method
10/21/2003US6636731 Demodulation method preserving a high spectral purity
10/21/2003US6636730 Wideband IF image rejecting receiver
10/21/2003US6636727 Phase locked loop system
10/21/2003US6636574 Doppler spread/velocity estimation in mobile wireless communication devices and methods therefor
10/21/2003US6636571 Automatic frequency control system with improved argument approximation
10/21/2003US6636570 Phase detection apparatus for compensating phase rotation error
10/21/2003US6636559 Channel response estimation circuit
10/21/2003US6636555 Amplitude limitation
10/21/2003US6636525 Destination dependent coding for discrete multi-tone modulation
10/21/2003CA2245072C One bit digital quadrature vector modulator
10/16/2003WO2003085876A1 A system and method of dynamically optimizing a transmission mode of wirelessly transmitted information
10/16/2003WO2003085875A1 Method and communication device using adaptive space-time encoding, modulation and error coding
10/16/2003WO2003085869A1 Ofdm communication method and ofdm communication device
10/16/2003WO2003085852A1 Carrier recovery for dtv receivers
10/16/2003WO2003085829A1 Application-specific integrated circuit for a low-pass filtering device used for decoupling xdsl channels
10/16/2003WO2003073660A3 3g radio
10/16/2003WO2003063060A3 Asymmetric digital subscriber line modem apparatus and methods therefor
10/16/2003WO2003050968A3 Time-domain transmit and receive processing using singular value decomposition for mimo systems
10/16/2003WO2003047137A8 Method and device for the synchronization of radio stations and a time-synchronous radio bus system
10/16/2003US20030196210 Method and apparatus for simultaneously transmitting video, sound, data and ordinary telephone service, bidirectionally over an ordinary twisted pair
10/16/2003US20030194031 Diversity receiver with joint baud clock recovery
10/16/2003US20030194029 Automatic gain control methods and apparatus suitable for use in OFDM receivers
10/16/2003US20030194024 Apparatus and method for symbol timing recovery
10/16/2003US20030194023 Data slicer
10/16/2003US20030194021 Apparatus and method for digital wireless communications
10/16/2003US20030194020 Apparatus and method for digital wireless communications
10/16/2003US20030194017 Multilevel data encoding and modulation technique
10/16/2003US20030194016 System and method for high speed digital signaling
10/16/2003US20030193970 Device and method for symbol frame synchronization of OFDM transmitter and receiver
10/16/2003US20030193929 Activation of multiple xDSL modems with implicit channel probe
10/16/2003US20030193914 Rapid acquisition spreading codes for spread-spectrum communications
10/16/2003US20030193902 Method and arrangement to estimate tranmission channel characteristcs
10/16/2003US20030193889 Wireless device and method for interference and channel adaptation in an OFDM communication system
10/16/2003US20030193617 Equalizer system including a comb filter in an HDTV system
10/15/2003EP1353439A2 Nonlinear distortion compensating device
10/15/2003EP1352490A2 Fast initialization using seamless rate adaptation
10/15/2003EP1352480A2 Carrier phase recovery system for adaptive burst modems and link hopping radio networks
10/15/2003EP0716527B1 Maximum likelihood decoding and synchronous detecting method
10/15/2003CN1449613A A modulation technique providing high data rate through band limited channels
10/15/2003CN1449167A Analog-digital hybrid circuit of fast Fourier transform and inverse transform and application in communication system thereof
10/15/2003CN1449166A Analog-digital hybrid circuit of fast Fourier transform and inverse transform and application in communication system thereof
10/15/2003CN1449165A Instantaneous phase continuous differencing four-phase-shift-keyed modulating technology
10/15/2003CN1449122A Amplitude limiter for predicting parallel branch and amplitude limiting method
10/15/2003CN1124756C Gain equalizing method and device based on wide band multiple carrier base station
10/15/2003CN1124717C Fast Fourier transform window position recovering apparatus for orthogonal frequency division multiplexing system receiver
10/15/2003CN1124716C Method for transmission of reference signals in OFDM system
10/15/2003CN1124701C Estimation of Doppler shift compensation in a mobile communication system
10/15/2003CN1124699C Method for modifying channel impulse response in TDMA systems
10/14/2003US6633752 Base band signal offset correcting circuit for FSK receiving apparatus and method thereof
10/14/2003US6633619 Data symbol counting device, synchronizing device and method
10/14/2003US6633618 Method and apparatus for digitally removing a DC-offset smaller than one LSB
10/14/2003US6633617 Device and method for compensating or creating doppler effect using digital signal processing
10/14/2003US6633616 OFDM pilot tone tracking for wireless LAN
10/14/2003US6633614 Multicarrier personal access communication system
10/14/2003US6633602 User equipment which uses pre-rotation before transmission
10/14/2003US6633600 Traffic lights in a code division multiple access (CDMA) modem
10/14/2003US6633199 Amplifier circuit, radio transmitter, method and use
10/14/2003CA2269788C Method of transmission and device to carry out said method
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