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)
08/2009
08/26/2009CN101518011A Methods and apparatus for configuring a pilot symbol in a wireless communication system
08/26/2009CN101518010A Methods and apparatus for transmitting a frame structure in a wireless communication system
08/26/2009CN101518009A Method for peak-to-average power ratio reduction in telecommunication systems
08/26/2009CN101518008A System and method for communicating data using symbol-based randomized orthogonal frequency division multiplexing (ofdm)
08/26/2009CN101518007A System and method for communicating data using symbol-based randomized orthogonal frequency division multiplexing (OFDM) with selected subcarriers turned on or off
08/26/2009CN101518006A System and method for applying frequency domain spreading to multi-carrier communications signals
08/26/2009CN101518005A System and method for communicating data using symbol-based randomized orthogonal frequency division multiplexing (OFDM) with applied frequency domain spreading
08/26/2009CN101518004A Method of communicating and associated transmitter using coded orthogonal frequency division multiplexing (COFDM)
08/26/2009CN101518003A Method of transmitting signals for initial synchronization in a wireless communication system using Orthogonal Frequency Division Multiplexing (OFDM) or OFDM Access (OFDMA) scheme
08/26/2009CN101518002A 解调方法 Demodulation method
08/26/2009CN101518000A UWB apparatus and method
08/26/2009CN101517955A Communication control method for TDD/OFDMA communication format, base station device, terminal device, and communication control system
08/26/2009CN101517901A Programmable Continuous Phase Modulation (CPM) decoder and associated methods
08/26/2009CN101516108A Data reception method and data reception devcie for receiving data
08/26/2009CN101516061A Method for transmitting multimedia broadcast multicast service in next generation communication system
08/26/2009CN101516060A Method for transmitting and receiving multicast services of multimedia broadcast
08/26/2009CN101515919A Method for digital communication
08/26/2009CN101515918A Multi-carrier modulator-demodulator
08/26/2009CN101515917A Multi-user wireless communication system based on both-way trunk and method thereof
08/26/2009CN101515915A Method for jointly demodulating MSK and DSSS and demodulator thereof
08/26/2009CN101515913A Fixed loop control method based on additions and shifts
08/26/2009CN101515912A Detecting method for various interference signals of DS-CDMA system based on converting identifying schemes
08/26/2009CN101515910A DMR physical layer four-level modem
08/26/2009CN101515909A Method and apparatus for multi-rate control in a multi-channel communication system
08/26/2009CN101515908A Signal processing device used for a communication system
08/26/2009CN101515856A Method for transmitting multicast services of multimedia broadcast in nontransparent relay station mode
08/26/2009CN101515846A Multi-antenna terminal and data processing method for the terminal
08/26/2009CN101515837A 100 Gbit/s OFDM optical signal generation
08/26/2009CN101515817A Multi-antenna emission diversity method and device
08/26/2009CN101515804A Method and system for generating low density parity check codes
08/26/2009CN100534236C Transmission of heart beat signal at a lower level than heart beat request
08/26/2009CN100534082C Input circuit for high-frequency transmission element
08/26/2009CN100534081C Time synchronism method for multi-input multi-output crossing frequency division multiplexing system
08/26/2009CN100534080C Noise measurement method and a related receiving digital subscriber line modem
08/26/2009CN100534079C Transmission mode detection device and method of digital multimedia broadcast receiver
08/26/2009CN100534078C Digital remodulation and digital remodulating method for binary frequency shift keying signal
08/26/2009CN100534077C A method and system for multiple channel wireless transmitter and receiver with phase and amplitude calibration
08/26/2009CN100534076C Frequency error correction system with initial frequency estimation and feedback tracking
08/26/2009CN100534026C Bluetooth RF based RF-tag read/write station
08/26/2009CN100534017C Method and apparatus for allocating pilot carrier adaptively in orthogonal frequency division multiple access system
08/26/2009CN100534007C Method and device for receiving synchronization signals
08/26/2009CN100533956C Uncorrelated self-adaptive predistorter
08/26/2009CN100533950C Digital phase locked loop
08/25/2009US7580494 Low wander timing generation and recovery
08/25/2009US7580490 Apparatus and method for channel estimation in an orthogonal frequency division multiplexing cellular communication system using multiple transmit antennas
08/25/2009US7580487 Apparatus and method for estimating a carrier to interference and noise ratio in a communication system
08/25/2009US7580486 Multi-input multi-frequency synthesizing apparatus and method for multi-band RF receiver
08/25/2009US7580485 Address generator for LDPC encoder and decoder and method thereof
08/25/2009US7580484 Orthogonal frequency division multiplexing (OFDM) demodulator, integrated circuit for OFDM demodulation and OFDM demodulation method
08/25/2009US7580483 Trimming of local oscillation in an integrated circuit radio
08/25/2009US7580482 Joint, adaptive control of equalization, synchronization, and gain in a digital communications receiver
08/25/2009US7580481 I/Q timing mismatch compensation
08/25/2009US7580480 Demodulation method using soft decision for quadrature amplitude modulation and apparatus thereof
08/25/2009US7580479 Receiving method and receiver
08/25/2009US7580477 Transmission system enabling reliable reception by a single device of information in channels concurrently transmitted on different frequencies
08/25/2009US7580476 Communication system and method for improving efficiency and linearity
08/25/2009US7580475 Base station having a set of phased array antennas
08/25/2009US7580474 Digital transmitter
08/25/2009US7580473 Method for modulating a carrier signal and method for demodulating a modulated carrier signal
08/25/2009US7580467 System and method for multiple signal carrier time domain channel estimation
08/25/2009US7580466 Demodulation device and demodulation method
08/25/2009US7580464 Method for detecting UWB pulse sequences and analog detection means suitable for this purpose
08/25/2009US7580450 Parameter estimator with dynamically variable integration time
08/25/2009US7580445 Nonlinear precoding in code-division multiple access communication system
08/25/2009US7580400 Apparatus and method for generating preamble signal for cell identification in an orthogonal frequency division multiplexing system
08/25/2009US7580384 Hierarchical data collection network supporting packetized voice communications among wireless terminals and telephones
08/25/2009US7580379 Technique for dynamic bin allocation
08/25/2009US7580347 Synchronization of remote units using multiple adjustments
08/25/2009US7580346 Method and apparatus to improve SCDMA headroom
08/25/2009US7579921 On-off keying-7-phase shift keying modulation system and method for fiber communication
08/25/2009CA2653282C Communication system
08/25/2009CA2294895C A subscriber unit and method for use in a wireless communication system
08/20/2009WO2009102182A1 Method of communication using frame
08/20/2009WO2009102181A1 Method of communication using frame
08/20/2009WO2009102180A1 Method of communication using frame
08/20/2009WO2009101993A1 Phase shifter and method for controlling same, and radio communication device with array antenna
08/20/2009WO2009101606A2 A radio sensor for detecting wireless microphone signals and a method thereof
08/20/2009WO2009101315A1 Power weighting of a multicarrier signal on reception in a communication system
08/20/2009WO2009101065A1 Single carrier frequency division multiple access technique
08/20/2009WO2009100761A1 Band-efficient method and system for transmitting/receiving a communication signal using a channel band
08/20/2009WO2009100680A1 Sub-carrier alignment mechanism for ofdm multi-carrier systems
08/20/2009WO2009100562A1 Method and apparatus of mobile device location
08/20/2009WO2009084876A3 Method and device for pre-coding in multiple input multiple output system
08/20/2009WO2009076274A3 Method and apparatus for signaling in multiple user one-slot operation in wireless communication
08/20/2009WO2009070602A3 Interference management in a wireless communication system using frequency selective transmission
08/20/2009WO2009057123A3 Ultra wideband transceiver architecture and method
08/20/2009WO2009015332A3 Method and apparatus for sensing signalling parameters in a wireless communications network
08/20/2009WO2008069392A3 Method and apparatus for estimating noise variance
08/20/2009WO2008066236A3 Method of controlling call setup in wireless communication system
08/20/2009WO2008018750A3 Method and apparatus for transmitting message in a mobile communication system
08/20/2009WO2008018711A3 Methods for transmitting feedback information
08/20/2009WO2008018710A3 Method and apparatus for transmitting feedback information
08/20/2009WO2007111456A3 A method of reducing overhead for multi-input, multi-output transmission system
08/20/2009WO2007105901A3 Apparatus for calculating papr and method thereof
08/20/2009WO2007091797A3 Method of matching codeword size and transmitter therefor in mobile communications system
08/20/2009WO2007050959A8 A method and apparatus for frequency hopping in a wireless communication system
08/20/2009US20090207954 Mimo slotted aloha (msa) system
08/20/2009US20090207953 Receiving level control apparatus and receiver
08/20/2009US20090207952 Automatic gain control circuit
08/20/2009US20090207951 Apparatus and Method for Processing Signal Using Single Correlator
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