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)
05/2007
05/10/2007WO2006118412A3 An apparaus and method for receiving signals in multi-carrier multiple access systems
05/10/2007WO2006118411A3 An apparatus for band limiting in sc-fdma communications systems and method thereof
05/10/2007WO2005109732A3 Low power direct conversion rf transceiver architecture and asic and systems including such
05/10/2007WO2005101987A3 Method of allocating subcarriers in orthogonal frequency division multiplexing (ofdm) cellular system
05/10/2007WO2005062920A3 System and method for mitigating noise associated with information communication
05/10/2007US20070105508 Wireless communication methods, systems, and signal structures
05/10/2007US20070104298 Wireless device with a non-compensated crystal oscillator
05/10/2007US20070104297 Detecting a data frame
05/10/2007US20070104295 RSSI for FSK IQ demodulator
05/10/2007US20070104294 Apparatus for independently extracting streams from hierarchically-modulated signal and performing soft-decision, and method thereof
05/10/2007US20070104293 Technique for demodulating Level II hierarchical data
05/10/2007US20070104291 Apparatus and method for signal mismatch compensation in a wireless receiver
05/10/2007US20070104290 Fast mode switching frequency synthesizing apparatus and method for operating in low power consumption
05/10/2007US20070104289 Apparatus and method for dynamically clocking a loop filter in a digital communications device
05/10/2007US20070104280 Wireless data transmission method, and corresponding signal, system, transmitter and receiver
05/10/2007US20070104279 Modulating apparatus, mobile communication system, modulating method, and communication method
05/10/2007US20070104264 Apparatus and method of decision feedback equalization in terrestrial digital broadcasting receiver
05/10/2007US20070104251 Universal derotator for umts modes
05/10/2007US20070104174 Method and apparatus for allocating a pilot signal adapted to the channel characteristics
05/10/2007US20070104086 Apparatus and Method for Modulating Data Message By Employing Orthogonal Variable Spreading Factor (OVSF) Codes in Mobile Communication System
05/10/2007DE102006007262B3 Wireless transmission data between a base a station and a transponder in a n RFID system uses an inductive path
05/10/2007DE102005050631A1 Vorrichtung zum Empfangen und Vorrichtung zum Senden eines Datensignales, das Mehrfachtonsignale aufweist, sowie System mit jeweils einer solchen Vorrichtung Means for receiving and means for transmitting a data signal, which has Mehrfachtonsignale and system with such a device, respectively
05/10/2007CA2627615A1 Methods and apparatus for determining timing in a wireless communication system
05/09/2007EP1783978A2 Technique for demodulating level II hierarchical data
05/09/2007EP1783977A1 Apparatus for independently extracting streams from hierarchically-modulated signal and method thereof
05/09/2007EP1783976A1 Device and method for the optimal estimation of distortion of a transmission medium, comprising the sequential emission of pairs of quadrature complementary sequences
05/09/2007EP1783975A1 Method and apparatus for processing data in a digital television transmitter
05/09/2007EP1783945A2 Data communication quality control system, transmission system and receiver
05/09/2007EP1783944A2 Data communication quality control system, transmission system and receiver
05/09/2007EP1783942A1 Low-density parity check coding for orthogonal frequency division multiplex systems
05/09/2007EP1783922A2 System and mehtod for providing an accurate estimation of received signal interference for use in wireless communication systems
05/09/2007EP1782596A2 Time-domain windowing of multi-band ofdm system to enable spectral sculpting
05/09/2007EP1782595A1 Unified pulse shaping for multi-carrier and single-carrier waveforms
05/09/2007EP1782594A1 Apparatus and method for reducing a phase drift
05/09/2007EP1782591A1 Channel tracking with scattered pilots using a kalman filter
05/09/2007EP1782553A1 Apparatus and method for obtaining delay diversity
05/09/2007EP1782543A1 Soft decision enhancement
05/09/2007EP1618696B1 Frequency synchronization apparatus and frequency synchronization method
05/09/2007EP1583309B1 Apparatus and method for reducing message collision between mobile stations simultaneously accessing a base station in a CDMA cellular communications system
05/09/2007EP1488587B1 Resonant power converter for radio frequency transmission and method
05/09/2007EP1423955B1 Method for adapting rate distribution to predefined block lengths
05/09/2007EP1405478B9 Packet data transmission using variable dqpsk modulation
05/09/2007EP1278327B1 Packet transmission system and packet transmission method
05/09/2007EP1222745A4 Timing recovery circuit in qam modems
05/09/2007EP0993740B1 A subscriber unit and method for use in a wireless communication system
05/09/2007EP0752173B1 Blind equalizer for a vestigial sideband signal
05/09/2007CN1961556A Generating higher order modulation using QPSK modulations
05/09/2007CN1961555A Method and apparatus for transmitting uplink fast feedback information in an ofdma communication system
05/09/2007CN1961554A Radio communication device, demodulation method, and frequency deflection correction circuit
05/09/2007CN1961553A Device and method for the optimal estimation of distortion of a transmission medium, comprising the sequential emission of direct cross complementary sequences
05/09/2007CN1961552A Device and method for generating a base band signal and program causing computer to execute the method
05/09/2007CN1961550A A method for signal processing and a signal processor in an OFDM system
05/09/2007CN1961549A A method for signal processing and a signal processor in an OFDM system
05/09/2007CN1961548A A method for signal processing and a signal processor in an OFDM system
05/09/2007CN1961530A Adaptive margin and band control in DSL system
05/09/2007CN1961521A Device and method for judging communication quality and program used for the judgment
05/09/2007CN1961519A Method and apparatus to select coding mode
05/09/2007CN1961518A I/Q MIMO detection for single antenna interference cancellation
05/09/2007CN1961513A Adaptive scheduling of voice traffic in a multi-carrier communication environment
05/09/2007CN1961512A Orthogonal frequency division multiplex (OFDM) data packet detecting unit and method of detecting an OFDM data packet
05/09/2007CN1961490A Wireless communication apparatus and communication quality estimating method
05/09/2007CN1961478A Staggered agc with digitally controlled vga
05/09/2007CN1960568A Method for reducing data transmission delay of switching sectors
05/09/2007CN1960557A Method for reducing interference between sectors in orthogonal frequency division multiplex system
05/09/2007CN1960517A System and method for realizing advertising media in mobile communication network
05/09/2007CN1960360A Quadrature modulator and vector correction method
05/09/2007CN1960359A Equalizer applied in mimo-ofdm system and related method
05/09/2007CN1960358A Digital information transmission method of a kind of multicarrier digital mobile multimedia broadcast system
05/09/2007CN1960357A Multicarrier digital mobile multimedia broadcast system, and digital information transmission method
05/09/2007CN1960356A System and method for generating and detecting identification sequence of band limited transmitter
05/09/2007CN1960355A Method of logic channel in periodic monitoring system
05/09/2007CN1960354A Method and equipment for sending / receiving codes of continuous pilot carrier in multicarrier
05/09/2007CN1960353A Method and system of setting up reference signal for multiplexing service data
05/09/2007CN1960352A Wireless transfer communication system and method based on OFDMA FDD
05/09/2007CN1960351A Terminal information transmission method, and terminal transmitter in wireless communication system
05/09/2007CN1960350A Data transfer method in use for orthogonal frequency division multiplex system
05/09/2007CN1960349A Communicaiton system and method
05/09/2007CN1960340A Iub interface data transmission method and system in mobile communication network
05/09/2007CN1960259A Implementation method of downloading files at same time in broadcasting network
05/09/2007CN1960235A Method of mixed automatic request of retransmission based on orthogonal frequency division multiplex
05/09/2007CN1960234A Deinterleaver and multi-carrier communication system
05/09/2007CN1960225A Method for expanding OFDM system based on invariable number of sub carrier wave
05/09/2007CN1960212A Device and method for transferring control information in digital broadcast system
05/09/2007CN1960208A Communication system and communication method of wireless earphone
05/09/2007CN1960207A Radio transfer communication system and method based on admixture of FDD and TDD
05/09/2007CN1960204A Method for adapting single frequency net in digital broadcasting satellite system
05/09/2007CN1960198A Analysis method of sub carrier wave, bits, power in use for orthogonal frequency division multiple access system
05/09/2007CN1959666A 数字信号处理装置 Digital signal processing means
05/08/2007US7216283 Iterative metric updating when decoding LDPC (low density parity check) coded signals and LDPC coded modulation signals
05/08/2007US7216268 Method and arrangement to estimate transmission channel characteristics
05/08/2007US7215939 Apparatus and method for detecting ripples caused by multipath propagation and controlling receiving antenna and tuner
05/08/2007US7215937 Radio wave reception device, radio wave clock, and repeater
05/08/2007US7215927 Radio communication apparatus and radio transmission method
05/08/2007US7215725 Enhanced channel parameter estimation in the presence of preamble erasures
05/08/2007US7215724 Signal demodulation in a mobile receiver
05/08/2007US7215723 Demodulator for an amplitude-modulated alternating signal
05/08/2007US7215721 Method and system for decoding multilevel signals
05/08/2007US7215718 Combined channel coding and space-time block coding in a multi-antenna arrangement
05/08/2007US7215715 System and method of signal wave shaping for spectrum control of an OFDM signal
05/08/2007US7215714 Robust digital communication system
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