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)
10/2002
10/17/2002US20020151280 Line interface with gain feedback coupled matching impedance
10/17/2002US20020151279 Tunable low noise amplifier
10/17/2002US20020150182 Spatial processing and timing estimation using a training sequence in a radio communications system
10/17/2002US20020150181 Method and apparatus for recovering timing information in orthogonal frequency division multiplexing (OFDM) systems
10/17/2002US20020150172 Caller-ID demodulation apparatus and method using multiple thresholds
10/17/2002US20020150171 Bandpass predistortion method and apparatus for radio transmission
10/17/2002US20020150169 Apparatus and method for measuring propagation delay in an NB-TDD CDMA mobile communication system
10/17/2002US20020150168 Optimum phase error metric for OFDM pilot tone tracking in wireless LAN
10/17/2002US20020150167 Methods and apparatus for configurable or assymetric forward error correction
10/17/2002US20020150154 Increasing performance in modems in presence of noise
10/17/2002US20020150152 Multicarrier transmission system with low power sleep mode and rapid-on capability
10/17/2002US20020150147 Multichannel signal transmission and reception for bluetooth systems
10/17/2002US20020150071 Method and arrangement to determine a clock timing error in a multi-carrier transmission system
10/17/2002US20020150068 Methods and apparatus for multiplexing signal codes via weighted majority logic
10/17/2002US20020150038 Multi-carrier communication device and peak power suppressing method
10/17/2002US20020150037 Iterative maximum likelihood channel estimation and signal detection for OFDM systems
10/17/2002US20020150036 Peak-to-average power reduction in an Orthogonal Frequency Division Multiplexing system
10/17/2002US20020149535 Tunable antenna matching circuit
10/17/2002US20020149533 Tunable horn antenna
10/17/2002US20020149526 Inverted-F ferroelectric antenna
10/17/2002US20020149477 Combined tire pressure monitoring and keyless entry receiver
10/17/2002US20020149448 Low-loss tunable ferro-electric device and method of characterization
10/17/2002US20020149444 Tunable planar capacitor
10/17/2002US20020149443 Tunable voltage controlled oscillator
10/17/2002US20020149439 Tunable isolator
10/17/2002US20020149434 Tunable voltage-controlled temperature-compensated crystal oscillator
10/17/2002US20020149428 Tunable power amplifier matching circuit
10/17/2002US20020149421 Device and method for demodulating frequency-modulated signals
10/17/2002US20020149420 Method and device of phase detection in phase modulation systems
10/17/2002CA2442922A1 Method and system for decoding multilevel signals
10/16/2002EP1249980A2 OFDM signal communication system, OFDM signal transmitting device and OFDM signal receiving device
10/16/2002EP1249979A2 Front end processor and method of compensating nonlinear distortion
10/16/2002EP1249955A1 Ofdm communication device
10/16/2002EP1249948A1 Method and apparatus for maximising throughput via variable preamble allocation in a radio communications network
10/16/2002EP1249125A1 Receiver improvement for expanded information capacity for existing communication transmissions systems
10/16/2002EP1249116A1 Detection and correction of phase jumps in a phase sequence
10/16/2002EP1249115A1 Decision directed frequency offset estimation
10/16/2002EP1249114A2 Method and devices for transmitting and receiving information
10/16/2002EP1249079A2 Method and device for determining the carrier frequency of base stations in the mobile receiver of a cellular mobile telephony system working with w-cdma
10/16/2002EP1159790B1 Estimation of doppler shift compensation in a mobile communication system
10/16/2002EP0906681A4 Improved coding system for digital transmission compression
10/16/2002CN1375150A QAM modulator for radio communications
10/16/2002CN1375148A Automatic gain control and wireless communication device
10/16/2002CN1375147A Method and apparatus for communication using pulse decoding
10/16/2002CN1374762A Noise cancelling method nad equipment
10/16/2002CN1092883C Demodulator control system and receiver capable of quickly acquiring desired carrier wave
10/16/2002CN1092867C 无线电接收机 Radio receiver
10/15/2002US6467092 Method for adjusting power in a communication system with multicarrier telephony transport
10/15/2002US6466793 Automatic frequency allocation (AFA) for wireless office systems sharing the spectrum with public systems
10/15/2002US6466630 Symbol synchronization in a continuous phase modulation communications receiver
10/15/2002US6466629 Multi-carrier transmission systems
10/15/2002US6466628 Technique for effectively rendering power amplification and control in wireless communications
10/15/2002US6466614 Method and apparatus for classifying a baseband signal
10/15/2002US6466609 Method for wireless information transfer
10/15/2002US6466584 System and method for performing digital subscriber line (DSL) modem communication over an AC link bus
10/15/2002US6466564 Two dimensional interleave process for CDMA transmissions of one dimensional timeslot data
10/15/2002US6466347 Binary optical transmission system
10/15/2002US6466277 VSB digital modulator
10/15/2002US6466086 Quadrature demodulator with phase-locked loop
10/15/2002CA2264350C Carrier recovery system
10/15/2002CA2245240C A method and apparatus for enhancing communication reception at a wireless communication terminal
10/10/2002WO2002080484A1 Method of and apparatus for performing amplitude and phase modulation
10/10/2002WO2002080483A1 Enhanced wireless packet data communication system, method, and apparatus apllicable to both wide area networks and local area networks
10/10/2002WO2002080482A1 Minimization of error contributions in a dmt system
10/10/2002WO2002080480A1 System and method for terrestrial high-definition television reception
10/10/2002WO2002080478A2 Qpsk modulator connected to an ask modulator
10/10/2002WO2002080427A1 System and method for optical communication
10/10/2002WO2002080424A1 A frequency auto-correction apparatus for cdma multipath fading channel
10/10/2002WO2002080402A1 Qam with qantised power
10/10/2002WO2002058410A3 Apparatus and associated method for operating upon data signals received at a receiving station of a fixed wireless access communication system
10/10/2002WO2002057925A3 System and method for providing an improved common control bus for use in on-line insertion of line replaceable units in wireless and wireline access systems
10/10/2002WO2002047344A3 Waveform generator for use in iq modulation
10/10/2002WO2001097416A3 Method and apparatus for reduction of interference in fm in-band on-channel digital audio broadcasting receivers
10/10/2002WO2001086316A3 Method and apparatus for compensating local oscillator frequency error
10/10/2002WO2001058027A9 Pilot symbol assisted modulation and demodulation in wireless communication systems
10/10/2002US20020147953 System and method of dynamically optimizing a transmission mode of wirelessly transmitted information
10/10/2002US20020147017 Multi-carrier communications with adaptive cluster configuration and switching
10/10/2002US20020146081 Precise frequency estimation of short data bursts
10/10/2002US20020146079 Digital communication system and method for increased bit rates
10/10/2002US20020146078 Multicarrier transmission system with reduced complexity channel response estimation
10/10/2002US20020146077 Radio frequency burst interference mitigation
10/10/2002US20020146063 Multicarrier transmission system with reduced complexity leakage matrix multiplication
10/10/2002US20020145971 Apparatus and method for synchronizing frequency in orthogonal frequency division multiplexing communication system
10/10/2002US20020145969 Carrier frequency acquisition method and apparatus having improved reliability for detecting carrier acquisition or loss thereof
10/10/2002US20020145968 Transmit power control for an OFDM-based wireless communication system
10/10/2002DE10116286A1 Operating system with nodes and base station in accordance with TDMA involves setting d.c. component or phase rotation for preceding block for given time slice at start of time slice
10/10/2002DE10115221A1 Verfahren zur Rahmen- und Frequenzsynchronisation eines OFDM-Signals und Verfahren zum Senden eines OFDM-Signals A method for frame and frequency synchronization of an OFDM signal and method of transmitting an OFDM signal
10/10/2002CA2818517A1 Enhanced wireless packet data communication system, method, and apparatus applicable to both wide area networks and local area networks
10/10/2002CA2704041A1 Enhanced wireless packet data communication system, method, and apparatus applicable to both wide area networks and local area networks
10/10/2002CA2704039A1 Enhanced wireless packet data communication system, method, and apparatus applicable to both wide area networks and local area networks
10/10/2002CA2704035A1 Enhanced wireless packet data communication system, method, and apparatus applicable to both wide area networks and local area networks
10/10/2002CA2704030A1 Enhanced wireless packet data communication system, method, and apparatus applicable to both wide area networks and local area networks
10/10/2002CA2442821A1 Enhanced wireless packet data communication system, method, and apparatus apllicable to both wide area networks and local area networks
10/09/2002EP1248429A2 Discrete multitone modulation with reduced peak-to-average power ratio, using unloaded subchannels
10/09/2002EP1248428A2 Peak power smoothing for multicarrier systems
10/09/2002EP1248427A1 Receiver
10/09/2002EP1248426A2 A low peak-to-average ratio quiescent mode architecture and signal design method for DMT modems
10/09/2002EP1248405A1 Adaptive Modulation Method for TDMA communications
10/09/2002EP1248404A2 Apparatus and method for transmitting/receiving data in a CDMA mobile communication system
10/09/2002EP1248401A1 Ofdm communication apparatus and ofdm communication method
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