Patents for H04L 27 - Modulated-carrier systems (89,721)
11/2007
11/07/2007CN101068124A Method and system for processing signal in communication systems
11/07/2007CN100347979C Simultaneous transmission of standard 8-VSB and robust 2-VSB (4-VSB) symbols in atsc system
11/07/2007CN100347975C Frequency domain guiding and verifying symbol computing method for OFDM precisive synchronization
11/06/2007US7292836 Direct conversion receiver
11/06/2007US7292830 Receiver gain management
11/06/2007US7292792 High speed modulation of optical subcarriers
11/06/2007US7292669 Null symbol detection device
11/06/2007US7292660 Delta-phase detection method and system
11/06/2007US7292659 Correlating and aligning monitored signals for computer system performance parameters
11/06/2007US7292658 Method and device for efficient decoding of symbols transmitted in a MIMO telecommunication system
11/06/2007US7292656 Signal pulse detection scheme for use in real-time spectrum analysis
11/06/2007US7292655 Apparatus and method and decoding biphase signals
11/06/2007US7292654 Reduced complexity coding system using iterative decoding
11/06/2007US7292653 Carrier lock detector
11/06/2007US7292652 Symbol detecting with large frequency error
11/06/2007US7292651 Pilot-aided channel estimation for OFDM in wireless systems
11/06/2007US7292650 OFDM receiver and metric generator thereof
11/06/2007US7292649 3G radio
11/06/2007US7292647 Wireless communication system having linear encoder
11/06/2007US7292646 Apparatus and method for synchronous demodulation
11/06/2007US7292645 Binary transmitter and method of transmitting data in binary format
11/06/2007US7292642 Reference symbol multicarrier signal designed to limit intersymbol interference
11/06/2007US7292641 Apparatus and method for transmitting/receiving preamble sequence in orthogonal frequency division multiplexing communication system using plurality of transmission antennas
11/06/2007US7292640 System and method for an adaptive receiver for the reception of signals subject to multipath interference
11/06/2007US7292638 Transform-based alias cancellation multi-channel tuner
11/06/2007US7292627 System and method for scrambling the phase of the carriers in a multicarrier communications system
11/06/2007US7292620 Method and apparatus to generate a clock-based transmission
11/06/2007US7292619 Method and system for acquiring ultra-wide-bandwidth communications signals using sequential block searches
11/06/2007US7292611 Demultiplexer for channel interleaving
11/06/2007US7292527 Residual frequency error estimation in an OFDM receiver
11/06/2007US7290927 Method and device for convolutive encoding and transmission by packets of a digital data series flow, and corresponding decoding method and device
11/06/2007CA2440815C Hydraulically balanced reciprocating pulser valve for mud pulse telemetry
11/01/2007WO2007123364A1 Method of generating pilot pattern for adaptive channel estimation in ofdma systems, method of transmitting/receiving using the pilot pattern and apparatus thereof
11/01/2007WO2007123340A2 Method and apparatus for inserting guard interval in a mobile communication system
11/01/2007WO2007123079A1 Communication apparatus, transmission system setting method, program, and radio communication system
11/01/2007WO2007123072A1 Modulator
11/01/2007WO2007122880A1 Signal processing circuit
11/01/2007WO2007122844A1 Dc offset correcting apparatus and dc offset correcting method
11/01/2007WO2007122191A2 Data slicer circuit, demodulation stage, receiving system and method for demodulating shift keying coded signals
11/01/2007WO2007111825A3 Method of ofdma tone interference cancellation
11/01/2007WO2007106460A3 One bit digital quadrature modulator
11/01/2007WO2007101338A3 Non-data-aided channel estimators for multipath and multiple antenna wireless systems
11/01/2007WO2007100507A3 Reducing the peak-to-average power ratio of a signal
11/01/2007WO2007098456A3 Spatial pilot structure for multi-antenna wireless communication
11/01/2007WO2007096800A3 In phase and quadrature path imbalance compensation
11/01/2007WO2007091163A3 Method for multiplexing users with code and frequency multiplexing
11/01/2007WO2007088481A3 Digital communications receiver
11/01/2007WO2007072344A3 Method and system for transmitting data from a medium access control device via a physical layer to an antenna
11/01/2007WO2007069071A3 Dual payload and adaptive modulation
11/01/2007WO2007066973A3 Apparatus and method for transmitting data using a plurality of carriers
11/01/2007WO2006107450A3 Agc with integrated wideband interferer detection
11/01/2007WO2006086576A3 Communication system modulating/demodulating data using antenna patterns and associated methods
11/01/2007WO2005122512A3 Digital modulation system and method
11/01/2007WO2004070953A3 Robust mode staggercasting fast channel change
11/01/2007WO2002058305A3 Time and bandwidth scalable slot format for mobile data systems
11/01/2007US20070253513 Frequency acquisition and tracking circuit
11/01/2007US20070253512 Method for acquiring timing and carrier synchronization of offset-QPSK modulated signals
11/01/2007US20070253511 Method and apparatus for improving signal reception in a receiver
11/01/2007US20070253510 Method and Device for the Compensation of Signal Errors in Iq-Modulators
11/01/2007US20070253509 Data transfer device
11/01/2007US20070253500 Method for multiple use subchannels
11/01/2007US20070253498 Radio Transmitting Apparatus and Radio Transmitting Method in Multicarrier Communication
11/01/2007US20070253495 Method and system for reducing radiated emissions from a communications channel
11/01/2007US20070253475 Adaptive equalization using correlation of edge samples with data patterns
11/01/2007US20070253472 Apparatus and method for acquirying a preamble in an orthogonal frequency division multiple access mobile terminal
11/01/2007US20070253324 Scattered pilot pattern and channel estimation method for MIMO-OFDM systems
11/01/2007US20070253323 Multiuse subcarriers in multipoint-to-point communication using orthogonal frequency division multiplexing
11/01/2007US20070253322 System for multiple use subchannels
11/01/2007CA2650462A1 Method of generating pilot pattern for adaptive channel estimation in ofdma systems, method of transmitting/receiving using the pilot pattern and apparatus thereof
10/2007
10/31/2007EP1850550A2 Digital signal transmission apparatus and method as well as a digital signal receiving apparatus and method and a digital signal transmission system
10/31/2007EP1850549A2 Mimo-ofdm transmitter
10/31/2007EP1850548A1 Method and apparatus for the detection of common control channel in an OFDMA cellular communication system
10/31/2007EP1850547A2 OFDMA communication apparatus
10/31/2007EP1850525A1 Orthogonalizing signals transmitted from a base station in an OFDMA system
10/31/2007EP1850524A1 A method of allocating sub-carriers, base station, and end terminal for use in OFDM transmission
10/31/2007EP1850517A1 Digital broadcast receiver and synchronization detecting method
10/31/2007EP1850502A1 Receiving apparatus
10/31/2007EP1850498A1 Method and system for extending signal transmission distance in asymmetric digital subscriber line
10/31/2007EP1850496A2 Wireless communication system, pilot sequence allocation apparatus, pilot sequence allocating method used for the system and apparatus, and mobile station used in the method
10/31/2007EP1850493A2 Communication apparatus based on multi-carrier modulation system with simultaneous transmission and reception in the same frequency band
10/31/2007EP1849278A1 Variable cyclic prefix in mixed-mode wireless communication systems
10/31/2007EP1849245A2 Wireless multiple access system for suppressing inter-cell interference
10/31/2007EP1741199A4 Method and apparatus for minimizing co-channel interference
10/31/2007EP1712051B1 Peak-to-average power reduction for fm ofdm transmission
10/31/2007EP1690343A4 Method to minimize compatibility error in hierarchical modulation using variable phase
10/31/2007EP1529347A4 Method and apparatus for layered modulation
10/31/2007EP1524812B1 Multicarrier transmission system with low power sleep mode and rapid-on-capability
10/31/2007EP1410593B1 Minimization of error contributions in a dmt system
10/31/2007EP1254545B1 Method and apparatus for a carrier frequency control in a wireless communication system
10/31/2007EP0961499B1 Predictive coding method and decoding method for dynamic image
10/31/2007DE112005003180T5 Störungsunterdrückung in drahtlosen Empfängern Interference suppression in wireless receivers
10/31/2007DE112005001909T5 Kanalverwaltung unter Verwendung einer Präambel, die Frequenznutzungsinformationen enthält Contains channel management using a preamble, the frequency usage information
10/31/2007DE10331893B4 Verfahren zum Sparen von Leistung durch Reduzierung der Zeit des aktiven Empfangs im Standby-Betrieb Method for conserving power by reducing the period of active reception in standby mode
10/31/2007DE102006034033B3 Filter structure for filtering data stream, has signal adders interconnected with outputs of delay units in such a manner that signal paths between input of structure and inputs of adders are guided over same and different delay units
10/31/2007DE102006019889A1 Digitally modulated carrier signal receiver circuit, has control device arranged such that adjustment of filter function of matched filter to different interval lengths is enabled based on output signal of evaluation device
10/31/2007DE102004017527B4 Transceiverschaltung und Verfahren zur Bereitstellung von Lokaloszillatorsignalen in einer Transceiverschaltung Transceiver circuit and method for providing local oscillator signals in a transceiver circuit
10/31/2007CN200969646Y Cable TV network safety monitor
10/31/2007CN200969591Y Wireless narrowband modem
10/31/2007CN200969100Y Demodulating equipment for non-contact IC card loading modulation data
10/31/2007CN101065941A Digital signal transmitting apparatus