Patents for H04L 27 - Modulated-carrier systems (89,721) |
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09/07/2004 | US6788728 System and method for reducing peak-to-average ratio of the reverse link modulator in a CDMA phone system |
09/07/2004 | US6788662 Method for adaptive reverse power control for spread-spectrum communications |
09/07/2004 | US6788654 Digital data receiver |
09/07/2004 | US6788349 Method and system for broadcasting a digital data signal within an analog TV signal using Orthogonal Frequency Division Multiplexing |
09/07/2004 | US6788236 Method and system for implementing a sigma delta analog-to-digital converter |
09/07/2004 | US6788117 Method and apparatus for generating frequency-stable wavelets |
09/02/2004 | WO2004075557A1 Robust system for transmitting and receiving map data |
09/02/2004 | WO2004075503A1 Wireless receiver deinterleaver having partitioned memory |
09/02/2004 | WO2004075502A2 Receiving apparatus and method for digital multi-carrier transmission |
09/02/2004 | WO2004075501A1 Improvements relating to frequency estimation |
09/02/2004 | WO2004075470A2 Controlled superposition coding in multi-user communication systems |
09/02/2004 | WO2004075469A2 Joint, adaptive control of equalization, synchronization, and gain in a digital communications receiver |
09/02/2004 | WO2004075460A2 Method and apparatus for frequency division multiplexing |
09/02/2004 | WO2004075459A2 Transmit diversity and separating multiple loopback signals |
09/02/2004 | WO2004075451A1 Multi-carrier radio communication system, transmission device, and reception device |
09/02/2004 | WO2004075444A2 Peak-to-average power ratio management for multi-carrier modulation in wireless communication systems |
09/02/2004 | WO2004075443A2 Receiving and transmitting signals having multiple modulation types using sequencing interpolator |
09/02/2004 | WO2004075442A2 Methods and apparatus of enhanced coding in multi-user communications systems |
09/02/2004 | WO2004075433A1 Power line carrier communication device and power line carrier communication method |
09/02/2004 | WO2004075395A1 Efficient modulation of rf signals |
09/02/2004 | WO2004025873A3 Method for transmitting signals in a radio communication system |
09/02/2004 | US20040172438 Method for compensating for a phase error in a reception and/or transmission system having an I/Q interface |
09/02/2004 | US20040172435 Architecture and method for performing a fast fourier transform and OFDM reciever employing the same |
09/02/2004 | US20040171398 Channel estimation method for a mobile communication system |
09/02/2004 | US20040171359 Power allocation in a communication system |
09/02/2004 | US20040170376 Receiver |
09/02/2004 | US20040170238 Frequency synchronizing method and frequency synchronizing apparatus |
09/02/2004 | US20040170237 Method and system for fast timing recovery for preamble based transmission systems |
09/02/2004 | US20040170235 Iterative decoding |
09/02/2004 | US20040170228 Frequency domain partial response signaling with high spectral efficiency and low peak to average power ratio |
09/02/2004 | US20040170227 Frequency correction for a multicarrier system |
09/02/2004 | US20040170226 Method, apparatus and system for high-speed transmission on fiber optic channel |
09/02/2004 | US20040170224 Communication system and communication device |
09/02/2004 | US20040170197 Method and device for synchronisation in OFDM |
09/02/2004 | US20040170157 Apparatus and method for transmitting/receiving preamble in ultra wideband communication system |
09/02/2004 | US20040170152 Wireless LAN apparatus |
09/02/2004 | US20040170120 Method for modulation |
09/02/2004 | DE10306290A1 Arrangement for radio signal de-spreading in radio communications system with code multiple access has preamble detection device, finger de-spreading device, path observation/path control device |
09/02/2004 | CA2516529A1 Peak-to-average power ratio management for multi-carrier modulation in wireless communication systems |
09/02/2004 | CA2516382A1 Controlled superposition coding in multi-user communication systems |
09/02/2004 | CA2516359A1 Methods and apparatus of enhanced coding in multi-user communications systems |
09/02/2004 | CA2514186A1 Robust system for transmitting and receiving map data |
09/01/2004 | EP1453268A2 Multicarrier communication with variable overhead rate |
09/01/2004 | EP1453267A2 Bit allocation among carriers in multicarrier communications |
09/01/2004 | EP1453266A1 Modulation method in a TETRA communication system |
09/01/2004 | EP1453265A1 Information transfer methods |
09/01/2004 | EP1453264A1 Modulation device, demodulation device, modulation/demodulation system, modulation method, demodulation method, modulation program, computer-readable recording medium containing the modulation program, demodulation program, and computer-readable recording medium containing the demodulation program |
09/01/2004 | EP1453263A1 DATA COMMUNICATION CONTROL SYSTEM, TRANSMITTER, AND TRANSMITTING METHOD |
09/01/2004 | EP1453261A1 Channel estimation method for a mobile communication system |
09/01/2004 | EP1453215A2 Communication device |
09/01/2004 | EP1453210A1 Radio transmission device and radio transmission method |
09/01/2004 | EP1451993A1 Multirate digital transceiver |
09/01/2004 | EP1451992A2 Cancellation of interference in mutlicarrier receivers |
09/01/2004 | EP1451991A2 Iterative detection and decoding for a mimo-ofdm system |
09/01/2004 | EP1451964A2 Time-domain transmit and receive processing using singular value decomposition for mimo systems |
09/01/2004 | EP1451955A2 Method and apparatus for providing multiple spread spectrum clock generator circuits with overlapping output frequencies |
09/01/2004 | EP1451942A1 Method of selecting a receiving path and receiving device comprising several receiving paths |
09/01/2004 | EP1451923A1 Am digital audio broadcasting with analog signal precompensation |
09/01/2004 | CN1526230A Evaluation circuit for alternating voltage pulses |
09/01/2004 | CN1526223A Transmission of multi-carrier waves on one electrical power supply line |
09/01/2004 | CN1526222A Transmitting and identifying a modulation type in digital communication systems by way of a phase rotation factor applied to a training sequence |
09/01/2004 | CN1526215A Method and apparatus for efficiently calculating log-likelihood ratios |
09/01/2004 | CN1526196A Reduced soft output information packet selection |
09/01/2004 | CN1525768A Channel estimation method for a mobile communication system |
09/01/2004 | CN1525727A A network digital camera system and method thereof |
09/01/2004 | CN1525725A A network digital camera and method thereof |
09/01/2004 | CN1525712A A receiving and processing method for frequency shift keying signal |
09/01/2004 | CN1525708A Wireless lan apparatus |
09/01/2004 | CN1525677A Method for balancing the ratio Eb/I in a service multiplexing cdma system and telecommunication systems using method |
09/01/2004 | CN1525675A Method and apparatus for setting a guard interval in an ofdm communication |
09/01/2004 | CN1525674A Multi transmission/reception orthogonal frequency division multiplexing system and method |
09/01/2004 | CN1525673A A Turbo method for eliminating trainning sequence |
09/01/2004 | CN1525672A Method for tracing carrier frequency of orthogonal frequency division multiplexing system in multipath fading channel |
09/01/2004 | CN1525659A Transmission wireless station, reception wireless station, wireless communication system and wireless communication method |
09/01/2004 | CN1165170C Burst signal detecting and AGC method for orthogonal frequency division multiplexing system |
08/31/2004 | US6785556 Method and apparatus for a software configurable wireless modem adaptable for multiple modes of operation |
08/31/2004 | US6785545 Digital mobile wireless communications apparatus and the system using the same |
08/31/2004 | US6785529 System and method for I-Q mismatch compensation in a low IF or zero IF receiver |
08/31/2004 | US6785520 System and method for antenna diversity using equal power joint maximal ratio combining |
08/31/2004 | US6785353 Synchronization loss detection in a V.34 receiver |
08/31/2004 | US6785351 Method and system for Doppler frequency estimation |
08/31/2004 | US6785349 Correlation based method of determining frame boundaries of data frames that are periodically extended |
08/31/2004 | US6785348 Demodulator and method for demodulating CPFSK-modulated signals using a linear approximation of the CPFSK signal |
08/31/2004 | US6785347 Nonlinear-least squares based method and apparatus for FSK signal decoding |
08/31/2004 | US6785346 Complex phase-locked loop demodulator for low-IF and zero-IF radio receivers |
08/31/2004 | US6785343 Rectangular-to-polar conversion angle quantizer |
08/31/2004 | US6785342 Nonlinear pre-distortion modulator and long loop control |
08/31/2004 | US6785331 Predictive encoding and decoding methods of video data |
08/31/2004 | US6785300 Delay compensation |
08/31/2004 | US6785258 System and method for data scrambling to reduce the crest factor in an OFDM waveform |
08/31/2004 | US6784817 Data generating method, data generator, and transmitter using the same |
08/31/2004 | US6784730 Contactless IC card system |
08/26/2004 | WO2004073276A1 Two-dimensional channel estimation for multicarrier multiple input outpout communication systems |
08/26/2004 | WO2004073275A1 Space-time-frequency diversity for multi-carrier systems |
08/26/2004 | WO2004073249A1 Differential multiple-norm transmit diversity with forward error correction and related diversity reception |
08/26/2004 | WO2004073247A1 Differential multiple-length transmit and reception diversity |
08/26/2004 | WO2004073224A1 Method of reducing papr in multiple antenna ofdm communication system and multiple antenna ofdm communication system using the method |
08/26/2004 | WO2004073219A1 Interleaving method for ofdm communications |
08/26/2004 | WO2004073200A1 Method of reducing feedback channel state information within adaptive ofdma system and adaptive ofdma system using the same |
08/26/2004 | WO2004073195A1 Variable sign/phase and inter-pulse time modulated multi-band uwb communication system |