Patents for H04L 27 - Modulated-carrier systems (89,721)
04/2009
04/22/2009EP2051466A2 Systems and methods for phase control for RZ-DQPSK modulation
04/22/2009EP2051465A2 Configurable demodulator and demodulation method
04/22/2009EP2051464A2 Frequency modulation using division of a reference clock signal
04/22/2009EP2051425A1 Ofdm reception device, ofdm reception integrated circuit, ofdm reception method, and ofdm reception program
04/22/2009EP2051395A1 Communication device and method
04/22/2009EP2051388A1 Demodulation circuit, digital microwave system and demodulation method
04/22/2009EP2050241A1 Chip equalizer and equalizing method
04/22/2009EP2050214A2 Method of estimating signal-to-noise ratio, method of adjusting feedback information transmission, adaptive modulation and coding method using the same, and transceiver thereof
04/22/2009EP2050202A1 User specific downlink power control channel q-bit
04/22/2009EP1794970B1 Apparatus and mathod for receiving packet data on a subset of carrier frequencies in a wireless communication system
04/22/2009EP1665701A4 Noise shaped interpolator and decimator apparatus and method
04/22/2009EP1297632B1 Enhanced in-band signaling for data communications over digital wireless telecommunication networks
04/22/2009EP0996263B1 Signal point arrangement dispersion calculation circuit
04/22/2009CN201226530Y Multi-carrier low intermediate frequency signal generator
04/22/2009CN201226529Y Dynamic dispatching system for wireless network
04/22/2009CN101416549A Methods and apparatus related to using a wireless terminal scrambling identifier
04/22/2009CN101416465A Method and arrangement in wireless communication networks using relaying
04/22/2009CN101416464A IFFT processing in wireless communications
04/22/2009CN101416463A Ping-Pong memory for pipeline processing of transmission stages
04/22/2009CN101416462A Method of providing pilot signals for uplink power control
04/22/2009CN101416461A Apparatus and method for broadcast superposition and cancellation in a multi-carrier wireless network
04/22/2009CN101416460A Frequency limiting amplifier in a fsk receiver
04/22/2009CN101416414A Receiver and receiving method
04/22/2009CN101416410A Transmission device and transmission method
04/22/2009CN101416407A Enhanced holographic communications apparatus and method
04/22/2009CN101414995A Method and apparatus for carrier recovery
04/22/2009CN101414994A Method and apparatus for reducing peak average power ratio of multi-carrier system
04/22/2009CN101414993A Transmission control information processing circuit and receiving apparatus
04/22/2009CN101414992A MIMO wireless communication system
04/22/2009CN101414991A Method for building synchronization sequence of MIMO non-real time platform
04/22/2009CN101414990A Method for capturing carrier frequency bias and time delay of single carrier frequency domain equalizing system
04/22/2009CN101414989A Timing tracking method based on block transmission for single carrier system
04/22/2009CN101414953A Method, base station, relay station and terminal for sending relay system data
04/22/2009CN101414868A CDAS station DCPR communication protocol and receiving method
04/22/2009CN101414863A Adaptive antenna radio communication device and method
04/22/2009CN101414860A Method for enhancing WiMAX ascending performance using collaboration diversity
04/22/2009CN101414001A Correlation device and method for different modulated signals
04/22/2009CN100481828C Amplitude imbalance compensation of quadrature modulator
04/22/2009CN100481827C DFDM system time-frequency domain hybrid difference modulating method
04/22/2009CN100481826C Transmitting and receiving method for signal of orthogonal frequency division multiplexing system
04/22/2009CN100481825C Method and device for optimized XDSL data transmission
04/22/2009CN100481824C Improvements in optical communications
04/22/2009CN100481746C Method and apparatus for signal receipt and acquisition
04/22/2009CN100480945C Improved interface between digital and analog circuits
04/21/2009US7522692 Isolator and a modem device using the isolator
04/21/2009US7522684 Signal transmission system
04/21/2009US7522681 Method and device for synchronizing a radio transmitter with a radio receiver
04/21/2009US7522680 Apparatus, system, and method for asymmetric maximum likelihood detection
04/21/2009US7522679 System and method for adapting to a change in constellation density while receiving a signal
04/21/2009US7522677 Receiver with low power listen mode in a wireless local area network
04/21/2009US7522676 Method and system for transmitter envelope delay calibration
04/21/2009US7522675 Digital content preview generation and distribution among peer devices
04/21/2009US7522674 Linearly independent preambles for MIMO channel estimation with backward compatibility
04/21/2009US7522672 Digital branch calibrator for an RF transmitter
04/21/2009US7522658 Design method and implementation of optimal linear IIR equalizers for RF transceivers
04/21/2009US7522544 Radio communication apparatus and subcarrier assignment method
04/21/2009US7522535 Method of adjustment for receiver of signals transmitted in bursts and corresponding receivers
04/21/2009US7522526 System and method for avoiding stall using timer for high-speed downlink packet access system
04/21/2009US7522514 Systems and methods for high rate OFDM communications
04/21/2009US7522513 Method and system for receiving a multi-carrier signal
04/16/2009WO2009049167A2 Efficient system identification schemes for communication systems
04/16/2009WO2009048305A2 Method for transmitting codeword
04/16/2009WO2009048256A1 Transmitter for reducing channel selectivity
04/16/2009WO2009047915A1 Multicarrier transmitter and multicarrier receiver
04/16/2009WO2009047732A2 Random access preamble and receiving schemes for wireless communications systems
04/16/2009WO2009047427A1 Frame synchronisation in an ofdm communication system
04/16/2009WO2009046759A1 Receiving apparatus and method for electronic noise compensation in phase modulated optical transmission
04/16/2009WO2009046627A1 A method for correcting signals in radio frequency links and the pre-distortion unit thereof
04/16/2009WO2009046626A1 Determining method and apparatus for downlink channel state information and precoding method and apparatus
04/16/2009WO2009025493A3 Method for transmitting/receiving data in multiple-input multiple-output system using multi-carrier
04/16/2009WO2009015340A3 Method and apparatus for initial acquisition of signaling parameters for a wireless communications network
04/16/2009WO2008143353A3 Apparatus and method for evaluating conditions of propagation paths
04/16/2009WO2008085592A3 System and method for inserting pilot symbols in continuous phase modulation systems
04/16/2009WO2008012800A3 Energy-efficient uplink slot allocation in time-frequency division multiple access systems
04/16/2009WO2006113929A3 Apparatus, systems and methods for providing in-band atsc vestigial sideband signaling or out-of-band signaling
04/16/2009WO2006023587A3 A method and system for maximum transmit diversity
04/16/2009WO2005036775A4 Apparatus and method of multiple antenna transmitter beamforming of high data rate wideband packetized wireless communication signals
04/16/2009WO2004040782A3 Multimedia transmission using variable gain amplification based on data importance
04/16/2009US20090098830 System and method for inverting automatic frequency control
04/16/2009US20090097604 Methods for multi-channel data detection phase locked loop error combination
04/16/2009US20090097597 Methods For Coarse Frequency Offset Estimation For Orthogonal Frequency Division Multiplexing Schemes
04/16/2009US20090097596 Methods and Systems for Impulse Noise Compensation for OFDM Systems
04/16/2009US20090097595 Vector decoding method and apparatus and computer program
04/16/2009US20090097594 Mirror sub-carrier demodulation circuit, receiving device with the same, and mirror sub-carrier demodulating method
04/16/2009US20090097593 Broadcast demodulation device
04/16/2009US20090097592 Hierarchical offset compensation to improve synchronization and performance
04/16/2009US20090097589 Lower complexity layered modulation signal processor
04/16/2009US20090097588 Digital data encoding and decoding method and system
04/16/2009US20090097582 Methodology and method and apparatus for signaling with capacity optimized constellations
04/16/2009US20090097581 Method and apparatus for adaptively controlling signals
04/16/2009US20090097580 Apparatus and Method For Modulating Data Message By Employing Orthogonal Variable Spreading Factor (OVSF) Codes In Mobile Communicating System
04/16/2009US20090097579 Apparatus and method for reducing papr in an ofdm system
04/16/2009US20090097578 Methods for Decoding TPS Carriers in OFDM Systems
04/16/2009US20090097577 Ofdm receiving apparatus having plurality of ofdm branches
04/16/2009US20090097576 Ofdm receiver apparatus having a plurality of receiver circuits and ofdm receiving method
04/16/2009US20090097565 Vector coding/decoding apparatus and stream media player
04/16/2009US20090097534 Apparatus and method for receiving multipath signal in a wireless communication system
04/16/2009US20090096543 Multi-format all-digital modulator and method
04/16/2009DE112007001045T5 Verfahren und System zur Reduzierung von Strahlungs-Emissionen aus einem Kommunikationskanal A method and system for reducing radiation emission from a communication channel
04/16/2009CA2699509A1 Efficient system identification schemes for communication systems