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)
10/2009
10/08/2009US20090252204 Receiver system for receiving analog and digital signals
10/08/2009US20090252203 Wireless communications network comprising multi-hop relay stations
10/08/2009US20090252123 Apparatus and methods for determination of gain factors for wireless communication transmission power
10/08/2009US20090252104 Physical Layer Frame Format Design for Wideband Wireless Communications Systems
10/08/2009US20090252101 Method and system of radio resource allocation for mobile mimo-ofdma
10/08/2009US20090252092 Wireless communication method, communication terminal apparatus, and wireless communication system
10/08/2009US20090252080 Relaying apparatus and method in wireless communication system
10/08/2009US20090252070 Airlink management in a wireless broadcast system
10/08/2009US20090251618 Integrated Wideband RF Tracking Filter for RF Front End with Parallel Band Switched Tuned Amplifiers
10/08/2009DE202009009659U1 Tonsignalisierung Tone signaling
10/08/2009DE102008057021A1 Radio device/radio modem/wired-transmission modem/integrated circuit for communication, has transmitter for dividing data block at classes of symbols, where symbols are transmitted with respect to each other in time-shifted manner
10/08/2009CA2720191A1 Overlay modulation of cofdm using phase and amplitude offset carriers
10/08/2009CA2720187A1 Improving slow speed mute resistance via selective cofdm bin loading
10/08/2009CA2719869A1 Device and method for performing fast fourier transform (fft) for orthogonal frequency division multiplexing (ofdm) demodulation
10/08/2009CA2719859A1 Device and method for efficiently performing ifft for orthogonal frequency division multiplexing (ofdm) modulation
10/07/2009EP2107853A1 Multi-transceiver wireless communication device and methods for operating during device discovery and connection establishment
10/07/2009EP2107750A1 Method for processing interfering signals in an XDSL system
10/07/2009EP2107749A2 Method for transmitting a reference signal sequence using a Zadoff-Chu sequence
10/07/2009EP2107748A1 A coding method and apparatus based on the reduced transmission time interval (rtti)
10/07/2009EP2107744A2 Modulating apparatus, mobile communication system, modulating method, and communication method
10/07/2009EP2107739A1 System and method for avoiding stall using timer for high-speed downlink packet access system
10/07/2009EP2107738A1 System and method for avoiding stall using timer for high-speed downlink packet access system
10/07/2009EP2107710A1 Dynamic resource assignment method and related module and devices
10/07/2009EP2107693A1 Method and device for SNR measurement and communication system comprising such device
10/07/2009EP2106648A2 Method and system for baseband predistortion linearization in multi-channel wideband communication systems
10/07/2009EP1902557B1 Carrier detection in transmission lines
10/07/2009EP1020039B1 Apparatus and method for transmitting signals in a communication system
10/07/2009CN201323596Y High-speed wireless modem
10/07/2009CN101554027A Wireless communication method, base station, and user terminal
10/07/2009CN101554026A Method, device, computer program product and apparatus providing a multi-dimensional CPM waveform
10/07/2009CN101552990A Method for distributing subcarrier with distributed mode based on ant colony optimization
10/07/2009CN101552765A QAM modulator for cable digital television and carrier generation circuit thereof
10/07/2009CN101552764A Communication time synchronization system and method based on OFM
10/07/2009CN101552763A OFDM channel estimation technique
10/07/2009CN101552762A A method and device to detect the length type of cyclic prefix and auxiliary synchronous signals
10/07/2009CN101552761A Method for modulating/demodulating reference Chirp ultra- wideband system based on SAW code domain
10/07/2009CN101552760A Method for detecting empty symbol
10/07/2009CN101552759A Transmission mode detection device
10/07/2009CN101552758A Accurate symbol sequential synchronous method in orthogonal frequency division multiplexing (OFDM) system
10/07/2009CN101552757A Mapping method of pilot frequency and physical resource block special for downstream and transmitting device thereof
10/07/2009CN101552756A Orthogonal frequency division multiplexing modulated receiving device and filter used by same
10/07/2009CN101552755A Signal transmitting and receiving method based on subcarrier waves and transceiver
10/07/2009CN101552754A Carrier leakage corrective system for radio frequency transceiver
10/07/2009CN101552753A DC offset correction circuit of wireless communication device and correction method thereof
10/07/2009CN101552751A Modulation method based on elliptically spherical function
10/07/2009CN101552748A A channel estimate method that eliminates the impact of timing deviation
10/07/2009CN101552655A Diversity transmission modes for MIMO OFDM communication systems
10/07/2009CN101552654A Transmitting device for orthogonal frequency division multiple access system and transmitting method of prefix signal
10/07/2009CN101552649A Resource scheduling method and device based on orthogonal frequency division multiplexing multiuser multiple antennae
10/07/2009CN101552622A A method and device to estimate the frequency deviation in TD-CDMA access system
10/07/2009CN100547991C Transmitting device and transmitting method
10/07/2009CN100547990C A method for channel forecast
10/07/2009CN100547989C Receiver for multi-carrier communication system
10/07/2009CN100547988C Adaptive equalizing circuit in wired digital television
10/07/2009CN100547956C Wireless transmitter, wireless receiver, and method thereof
10/07/2009CN100547908C Distortion compensation circuit
10/07/2009CN100547906C Method and device for down conversion receipt signal
10/06/2009US7600180 Iterative metric updating when decoding LDPC (low density parity check) coded signals and LDPC coded modulation signals
10/06/2009US7599697 Method for backup connection and an electronic device using the method
10/06/2009US7599453 Doppler spread estimation for OFDM systems
10/06/2009US7599452 Method and system for applying Viterbi type PSK demodulation for optimum correlation of GPS signals
10/06/2009US7599451 Sample rate conversion module and applications thereof
10/06/2009US7599450 Pattern-dependent equalization and detection
10/06/2009US7599449 Hybrid modulus blind equalization for quadrature amplitude modulation (QAM) receivers
10/06/2009US7599447 Method and system for a reduced emissions direct drive transmitter for unshielded twisted pair (UTP) applications
10/06/2009US7599446 Modulation and demodulation based on hierarchical modulation
10/06/2009US7599442 Transmitter synchronization in a distributed transmission system
10/06/2009US7599441 Low complexity soft-input Viterbi decoding for digital communication systems
10/06/2009US7599433 Apparatus for and method of controlling a feedforward filter of an equalizer
10/06/2009US7599422 Adjustable dual-band link
10/06/2009US7599420 System and method for distributed input distributed output wireless communications
10/06/2009US7599401 Transmission device and transmission method
10/06/2009US7599390 Approximate bit-loading for data transmission over frequency-selective channels
10/06/2009US7599348 Digital E8-VSB reception system and E8-VSB data demultiplexing method
10/06/2009US7599332 Modified preamble structure for IEEE 802.11a extensions to allow for coexistence and interoperability between 802.11a devices and higher data rate, MIMO or otherwise extended devices
10/06/2009US7599327 Method and apparatus for accessing a wireless communication system
10/06/2009US7599282 Wide frequency offset correction using encoded interburst phase differences
10/06/2009CA2653269C Communication system
10/06/2009CA2652609C Communication system
10/06/2009CA2435404C Frequency searcher and frequency-locked data demodulator using a programmable rotator
10/06/2009CA2391480C Single chip cmos transmitter/receiver and method of using same
10/01/2009WO2009120904A1 Low reuse preamble for a wireless communication network
10/01/2009WO2009120726A1 Method and system for transmit upsampling via ifft
10/01/2009WO2009120644A1 Multiple stage fourier transform apparatus, processes, and articles of manufacture
10/01/2009WO2009120456A2 Bit-width minimization scheme for wireless communication
10/01/2009WO2009120047A2 Hierarchical transmission system and method for variable quality service on cellular system
10/01/2009WO2009120029A2 Method and apparatus for pilot signal transmission
10/01/2009WO2009120028A2 Wireless multi-carrier code division multiplexing communication apparatus using transmit diversity scheme
10/01/2009WO2009119736A1 Receiver
10/01/2009WO2009118981A1 Sc-fdma transmission device and sc-fdma transmission signal formation method
10/01/2009WO2009118097A2 Resource allocation size dependent transport block size signaling
10/01/2009WO2009099288A3 Autonomous user equipment transmission power control in communication systems
10/01/2009US20090248945 Noise reducing methods and circuits
10/01/2009US20090247209 Enhancing uplink link budget in ofdma communication systems
10/01/2009US20090247187 Infrared, touch screen, w-cdma, gsm, gps camera phone
10/01/2009US20090247172 Low reuse preamble for a wireless communication network
10/01/2009US20090247107 Simplified interference suppression in multi-antenna receivers
10/01/2009US20090247073 XM Radio Satellite Reception Without Degrading Coverage in XM Terrestrial Markets
10/01/2009US20090245438 Automatic Filter Control
10/01/2009US20090245437 Sample rate converter and rceiver using the same
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