Patents for H04L 27 - Modulated-carrier systems (89,721) |
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09/21/2005 | EP1576758A1 Method and apparatus for transmitting data in a diversity communication system employing constellation rearrangement with qpsk modulation |
09/21/2005 | EP1576757A1 Transmitter diversity method for ofdm system |
09/21/2005 | EP0995277B1 Method and apparatus for minimizing delay variance via time divided transmissions |
09/21/2005 | CN2728097Y Middle frequency digital modem |
09/21/2005 | CN1672398A Digital signal processing reception device and method |
09/21/2005 | CN1672379A Differential decoder followed by non-linear compensator |
09/21/2005 | CN1672378A Method for dividing the bit rate of qpsk signals into two or several subchannels |
09/21/2005 | CN1672376A A method and system for multiple channel wireless transmitter and receiver with phase and amplitude calibration |
09/21/2005 | CN1672353A Coding and decoding for rate matching in data transmission |
09/21/2005 | CN1672349A Apparatus and method for improved performance in MC-CDMA radio telecommunication systems that use pulse-shaping filters |
09/21/2005 | CN1671204A Method for acquiring data transmitted in transmission channel |
09/21/2005 | CN1671133A A digital signal code modulation device and code modulation method |
09/21/2005 | CN1671132A Receiver and receiving method, and communication system and communication device |
09/21/2005 | CN1671131A System for minimizing time-pulse error in communication system |
09/21/2005 | CN1671055A Method for wireless data transmission |
09/21/2005 | CN1671039A Frequency modulation device |
09/21/2005 | CN1220358C System and method for effectively conducting large-scale fast fourier transform |
09/21/2005 | CN1220335C Auto frequency controller and its control method |
09/20/2005 | US6947748 OFDMA with adaptive subcarrier-cluster configuration and selective loading |
09/20/2005 | US6947715 VOFDM receiver correlation matrix processing using factorization |
09/20/2005 | US6947713 Amplitude- and frequency- or phase-modulated radio frequency signal generator and the transmitter incorporating same |
09/20/2005 | US6947712 Group delay precompensator for broadband radio frequency transmitter and method of operating the same |
09/20/2005 | US6947530 Adaptive pilot tone location in a transmission system |
09/20/2005 | US6947512 Carrier reproducing circuit |
09/20/2005 | US6947504 Frequency synchronizer |
09/20/2005 | US6947503 Method and circuit for synchronizing a receiver for a convolutionally coded reception signal |
09/20/2005 | US6947501 Decoder device for decoding packet signals composed of control codes and data codes |
09/20/2005 | US6947500 Buffering and sequencing of soft decisions of multiple channels into a single shared biorthogonal decoder |
09/20/2005 | US6947497 Digital signal receiver and method for receiving digital signal |
09/20/2005 | US6947480 Networking |
09/20/2005 | US6947477 Apparatus and method for creating signal and profiles at a receiving station |
09/20/2005 | US6947449 Apparatus, and associated method, for communication system exhibiting time-varying communication conditions |
09/20/2005 | US6947408 Wireless internet access system and method |
09/20/2005 | US6947373 Method for optimal estimation of a propagation channel based solely on pilot symbols, and corresponding estimator |
09/20/2005 | US6947372 Multi-carrier communication system with sample rate pilot carrier and time division duplexing frame rate pilot carrier |
09/15/2005 | WO2005086447A1 Method and apparatus for allocating subcarriers in a broadband wireless communication system using multiple carriers |
09/15/2005 | WO2005086446A1 Ofdm transceiver structure with time-domain scrambling |
09/15/2005 | WO2005086445A2 Dual carrier modulator for a multiband ofdm transceiver |
09/15/2005 | WO2005086444A1 Method and apparatus for carrier recovery in a communications system |
09/15/2005 | WO2005086443A1 Multiscale wireless communication |
09/15/2005 | WO2005086442A1 Multi-carrier receiver and method for multi-carrier signal receiving |
09/15/2005 | WO2005086398A1 Apparatus and method for assigning a ranging channel and transmitting and receiving a ranging signal in an ofdm system |
09/15/2005 | WO2005086397A1 Apparatus and method for transmitting/receiving pilot signal in communication system using ofdm scheme |
09/15/2005 | WO2005086384A1 Method for allocating a subchannel in an orthogonal frequency division multiple access cellular communication system |
09/15/2005 | WO2005086354A1 Phase-lock loop, method for frequency switching in a phase-lock loop, and use of said phase-lock loop |
09/15/2005 | WO2005086351A1 Providing automatic adaptation to frequency offsets in high speed serial links |
09/15/2005 | WO2005084288A2 Diode ring configuration for harmonic diode mixers |
09/15/2005 | WO2005060360A3 Method for constituting layered cell in ofdma system |
09/15/2005 | WO2005050890A3 Communication device |
09/15/2005 | WO2005050865A3 Coherent tracking for fm iboc receiver using a switch diversity antenna system |
09/15/2005 | US20050204208 Digital data receiver for edge cellular standard |
09/15/2005 | US20050203977 Method and apparatus for reducing the crest factor of a signal |
09/15/2005 | US20050203430 Recall device |
09/15/2005 | US20050202822 Method and system for transmitting data using a safety channel in a broadband wireless access system |
09/15/2005 | US20050202795 Method for synchronizing or decoding a baseband signal |
09/15/2005 | US20050202790 Data converter device and data conversion method, and transmitter circuit, communications device and electronic device using the same |
09/15/2005 | US20050201756 Transmission device for remote control systems |
09/15/2005 | US20050201503 Clock control of transmission signal processing devices in mobile radiotelephone terminals |
09/15/2005 | US20050201501 Apparatus and method for digital down-conversion in a multi-mode wireless terminal |
09/15/2005 | US20050201497 Automatic gain control and its controlling method |
09/15/2005 | US20050201496 Demodulation device and demodulation method |
09/15/2005 | US20050201495 Reproducing apparatus and method for controlling the same |
09/15/2005 | US20050201494 Apparatus and method for digital down-conversion in a multi-mode wireless terminal |
09/15/2005 | US20050201492 Carrier lock detector |
09/15/2005 | US20050201491 System and method for selecting optimal data transition types for clock and data recovery |
09/15/2005 | US20050201488 Display of digital interface symbol information from an analog signal |
09/15/2005 | US20050201486 Apparatus and method for transmitting control information in a mobile communication system |
09/15/2005 | US20050201483 Error adjustment for multi-antenna transmitter |
09/15/2005 | US20050201481 Method and apparatus for data transmission using multiple transmit antennas |
09/15/2005 | US20050201479 Multi-level modulation method and system |
09/15/2005 | US20050201477 Apparatus and method for transmitting a sub-channel signal in a communication system using an orthogonal frequency division multiple access scheme |
09/15/2005 | US20050201476 Method and apparatus for allocating subcarriers in a broadband wireless communication system using multiple carriers |
09/15/2005 | US20050201475 COFDM demodulator |
09/15/2005 | US20050201474 Method and apparatus for transmitting channel quality information in an orthogonal frequency division multiplexing communication system |
09/15/2005 | US20050201473 Systems and methods for receiving data in a wireless communication network |
09/15/2005 | US20050201456 Systems and methods for equalization of received signals in a wireless communication network |
09/15/2005 | US20050201455 Equalizer architecture |
09/15/2005 | US20050201454 System and method for automatically calibrating two-tap and multi-tap equalization for a communications link |
09/15/2005 | US20050201451 Method and device for determining transmission parameters |
09/15/2005 | US20050201338 Information transmission method, mobile communications system, base station and mobile station in which data size of identification data is reduced |
09/15/2005 | US20050201328 Method for designing an uplink pilot signal and a method and a system for estimating a channel in a multicarrier code division multiple access system |
09/15/2005 | US20050201327 System and method for managing safety channel in an orthogonal frequency division multiple access communication system |
09/15/2005 | US20050201325 Method for operation of HARQ in a broadband wireless access communication system |
09/15/2005 | US20050201295 Method and apparatus for transmitting/receiving channel quality information in a communication system using an orthogonal frequency division multiplexing scheme |
09/15/2005 | US20050201268 OFDM signal transmission method and apparatus |
09/15/2005 | US20050201267 Centralized buffer architecture for an orthogonal frequency division multiplexing (ofdm) receiver |
09/15/2005 | US20050201180 System and methods for back-off and clipping control in wireless communication systems |
09/15/2005 | DE19949586B4 System zum Analysieren einer Offset-QPSK-Modulation A system for analyzing an offset QPSK modulation |
09/15/2005 | DE102004008920A1 Mobile phone transmit receive unit has user data transmitted discontinuously in duplex mode with separate word clock lines for baseband and high frequency sections |
09/15/2005 | DE102004008227A1 Adjustment method for maximum power in a fractional delay in a digitally modulated, analog receiving signal (RS) in a communications receiving device uses RS to generate an over-scanned bit stream |
09/15/2005 | CA2554785A1 Apparatus and method for assigning a ranging channel and transmitting and receiving a ranging signal in an ofdm system |
09/14/2005 | EP1575319A2 System and method for managing safety channel in an orthogonal frequency division multiple access communication system |
09/14/2005 | EP1575310A2 A telecommunications system for providing both narrowband and broadband services to subscribers; subscriber equipment; a shelf therefor; a replaceable lowpass filter unit; line termination equipment; network termination equipment; and a telecommunications rack with a plurality of shelves having a redundancy featur |
09/14/2005 | EP1575256A2 A telecommunications system for providing both narrowband and broadband services to subscribers; sunscriber equipment; a shelf therefor; a replaceable lowpass filter unit; line termination equipment; network termination equipment and a telecommunications rack with a plurality of shelves having a redundancy featur |
09/14/2005 | EP1575255A2 A telecommunications system for providing both narrowband and broadband services to subscribers; subscriber equipment; a shelf therefor; a replaceable lowpass filter unit; line termination equipment; network termination equipment; and a telecommunications rack with a plurality of shelves having a redundancy featur |
09/14/2005 | EP1575235A2 OFDM Signal transmission method and apparatus |
09/14/2005 | EP1575234A2 Method and apparatus for transmitting/receiver channel quality information in a communication system using an orthogonal frequency division multiplexing |
09/14/2005 | EP1575233A2 Apparatus and method for transmitting a sub-channel signal in a communication system using an orthogonal frequency division multiple access scheme |
09/14/2005 | EP1575232A1 Fast Fourier Transformation (FFT) with adaption of the sampling rate in Digital Radio Mondiale (DRM) receivers |
09/14/2005 | EP1575208A2 Method and device for providing timing information in a wireless communication system |