| Patents for H04L 27 - Modulated-carrier systems (89,721) |
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| 04/12/2006 | CN1758584A System and up, down link transmission method of frequency distribution user inserted in local network |
| 04/12/2006 | CN1758576A Uplink chain emitting and receiving method of space time block code its-DS-CDMA system |
| 04/12/2006 | CN1251498C Digital broadcasting system transmitter and method |
| 04/12/2006 | CN1251465C Mutual-complementing code demodulating system |
| 04/12/2006 | CN1251226C Information recording apparatus and signal processing method |
| 04/12/2006 | CN1250163C Computer tomography system and method of re-constructing digital image data |
| 04/11/2006 | US7028246 Orthogonal frequency division multiplexing/modulation communication system for improving ability of data transmission and method thereof |
| 04/11/2006 | US7027780 Technique for improving modulation performance of translational loop RF transmitters |
| 04/11/2006 | US7027776 Transverter control mechanism for a wireless modem in a broadband access system |
| 04/11/2006 | US7027546 Method and system for providing a semi-data aided frequency estimator for OQPSK |
| 04/11/2006 | US7027544 Data clocked recovery circuit |
| 04/11/2006 | US7027543 Minimum variance unbiased and moment estimators of carrier frequency offset in multi-carrier systems |
| 04/11/2006 | US7027540 Receiver |
| 04/11/2006 | US7027539 Pipeline architecture for multi-slot wireless link processing |
| 04/11/2006 | US7027535 Frequency tracking loop and method of frequency tracking |
| 04/11/2006 | US7027534 Extracting fine-tuned estimates from correlation functions evaluated at a limited number of values |
| 04/11/2006 | US7027533 Turbo-reception method and turbo-receiver |
| 04/11/2006 | US7027530 Method and apparatus for maximizing receiver performance utilizing mid-packet gain changes |
| 04/11/2006 | US7027529 Demodulation method and demodulation apparatus |
| 04/11/2006 | US7027528 Timing recovery using the pilot signal in high definition TV |
| 04/11/2006 | US7027527 Excess delay spread detection method for multi-carrier communication systems |
| 04/11/2006 | US7027525 Digital transmission method for bandwidth and bit rate flexibility |
| 04/11/2006 | US7027524 Method of transmitting and receiving QPSK digital signals |
| 04/11/2006 | US7027520 Method and apparatus for simultaneously retrieving portions of a data stream from different channels |
| 04/11/2006 | US7027519 Iterative maximum likelihood channel estimation and signal detection for OFDM systems |
| 04/11/2006 | US7027518 Method and arrangement for providing optimal bit protection against transmission errors |
| 04/11/2006 | US7027503 Receiver with a decision feedback equalizer and a linear equalizer |
| 04/11/2006 | US7027497 Adaptive equalization method and adaptive equalizer |
| 04/11/2006 | US7027494 Method for generating orthogonal spread codes in mobile communication system |
| 04/11/2006 | US7027493 System and method for medium wide band communications by impluse radio |
| 04/11/2006 | US7027458 Modem and a method for controlling the same |
| 04/11/2006 | US7027429 Method and apparatus for time and frequency synchronization of OFDM communication systems |
| 04/11/2006 | US7027422 Method for balancing the ratio Eb/l in a service multiplexing CDMA system and telecommunication system using this method |
| 04/11/2006 | US7027399 Data communication device |
| 04/11/2006 | US7027357 Acoustic communication device and acoustic signal communication method |
| 04/11/2006 | US7026864 Non-coherent FSK demodulator |
| 04/11/2006 | CA2432935C Power cutback configuration of digital subscriber line transceivers using public switched telephone network signaling |
| 04/11/2006 | CA2272864C Method and apparatus for generating complex four-phase sequences for a cdma communication system |
| 04/11/2006 | CA2205986C Communication system with multicarrier telephony transport |
| 04/11/2006 | CA2180100C Higher order digital phase loop filter |
| 04/06/2006 | WO2006036331A2 Systems and methods for equalization of received signals in a wireless communication network |
| 04/06/2006 | WO2006036053A2 Method of transmitting data and estimating channel informatio in ofdm/ofdma mobile communications system |
| 04/06/2006 | WO2006035070A1 Method for realizing a link adaptation in a mimo-ofdm transmission system |
| 04/06/2006 | WO2006034845A1 Method and device for synchronising the carrier frequency of an offset quadrature phase-modulated signal |
| 04/06/2006 | WO2005008928A3 System and method for an upconverter for stacked intermediate frequency carriers |
| 04/06/2006 | WO2004075444A3 Peak-to-average power ratio management for multi-carrier modulation in wireless communication systems |
| 04/06/2006 | US20060073789 Multi-carrier communication apparatus |
| 04/06/2006 | US20060072925 Circuit arrangement for electrically isolated transmission of an electrical signal with an optocoupler |
| 04/06/2006 | US20060072921 Optical transmission system for frequency-multiplexed signal |
| 04/06/2006 | US20060072754 Chaotic communication system and method using modulation of nonreactive circuit elements |
| 04/06/2006 | US20060072689 Matched filter and cross correlation method |
| 04/06/2006 | US20060072688 Wireless communication system and method with frequency burst acquisition feature using autocorrelation |
| 04/06/2006 | US20060072686 Method and circuit arrangement for suppressing an orthogonal perturbation |
| 04/06/2006 | US20060072685 Wireless communication system with hardware-based frequency burst detection |
| 04/06/2006 | US20060072684 Data communication for wired and wireless communication |
| 04/06/2006 | US20060072656 Estimation of signal-to-noise ratio by processing measured error vector magnitude |
| 04/06/2006 | US20060072649 Frequency hopping ofdma method using symbols of comb pattern |
| 04/06/2006 | US20060072450 Ofdm signal collision position detection apparatus and ofdm reception device |
| 04/06/2006 | DE102004056478B3 Reception of quadrature amplitude-modulated discrete multi-tone signals, employs Fourier transformation and equalization to achieve maximum signal to noise ratio |
| 04/06/2006 | DE102004048312A1 QAM-modulated signals decoding method, involves providing data, which is transmitted with QAM-modulated signals, for error protection by cyclic block codes, where codes are used for correction of several errors in man-home metrics |
| 04/06/2006 | DE102004047424A1 Schaltung und Verfahren zur Trägerrückgewinnung Circuit and method for carrier recovery |
| 04/06/2006 | CA2826134A1 Method and apparatus for encryption of over-the-air communications in a wireless communication system |
| 04/05/2006 | EP1643707A1 Method for synchronisation of a sampling clock and synchronisation unit for a multi-carrier receiver system |
| 04/05/2006 | EP1643706A1 Digital broadcast receiving apparatus and receiving method |
| 04/05/2006 | EP1643705A1 Timing extraction device and method, and demodulation device using the timing extraction device |
| 04/05/2006 | EP1643704A1 Frequency-shift-keying demodulator and method of frequency-shift-keying |
| 04/05/2006 | EP1643702A2 Apparatus and method for estimating delay spread of multi-path fading channel in wireless communication system |
| 04/05/2006 | EP1643671A1 Medium access control (mac) frame designing method in a wireless communication system |
| 04/05/2006 | EP1643669A1 Radio communication apparatus and pilot symbol transmission method |
| 04/05/2006 | EP1643660A1 Multiple input multiple output orthogonal frequency division multiplexing mobile communication system and channel estimation method |
| 04/05/2006 | EP1643635A2 Demodulator for use in wireless communications and receiver, method and terminal using it |
| 04/05/2006 | EP1643634A1 Carrier recovery apparatus and method for VSB receiver |
| 04/05/2006 | EP1642435A1 Method and apparatus for communicating symbols in a multiple input multiple output communication system using interleaved subcarriers across a plurality of antennas |
| 04/05/2006 | EP1642434A2 Methods and apparatus for backwards compatible communication in a multiple input multiple output communication system with lower order receivers |
| 04/05/2006 | EP1642433A1 Method for estimating a carrier leak, an estimator and modulation system provided with automatic control of a carrier using said system |
| 04/05/2006 | EP1642410A1 Pattern sequence synchronization |
| 04/05/2006 | EP1642407A1 Apparatus, and associated method, for communication system exhibiting time-varying communication conditions |
| 04/05/2006 | EP1540848A4 Flexible tdma system architecture |
| 04/05/2006 | EP1221198B1 A simplified digital fir filter for direct sequence spread spectrum communication systems |
| 04/05/2006 | EP0992141B1 Device for transmitting optical signals having different frequencies |
| 04/05/2006 | EP0956676B1 Method and device in a communication system |
| 04/05/2006 | CN1757233A Digital television transmitter and receiver for transmitting and receiving dual stream using 4 level vestigial side band robust data |
| 04/05/2006 | CN1757213A Multicarrier transmission using a plurality of symbol lengths |
| 04/05/2006 | CN1757211A Channel estimation based on an estimated channel delay spread |
| 04/05/2006 | CN1757194A Method and apparatus for automatic gain control of a multi-carrier signal in a communication receiver |
| 04/05/2006 | CN1757190A Robust signal transmission in digital television broadcasting |
| 04/05/2006 | CN1757171A Ultra-wideband pulse modulation system and method |
| 04/05/2006 | CN1756403A Intercell measuring method in OFDM system |
| 04/05/2006 | CN1756248A MIMO OFDM mobile communication system and channel estimating method |
| 04/05/2006 | CN1756247A Code modulation data transmission method and its device and system |
| 04/05/2006 | CN1756246A Method and device for adaptively adjusting subcarrier group rate in subcarrier communication system |
| 04/05/2006 | CN1756245A Frequency-shift-keying demodulator and method of frequency-shift-keying |
| 04/05/2006 | CN1249969C Receiving method, receiver and radio transmitting system |
| 04/05/2006 | CN1249968C Digital radio communication system |
| 04/05/2006 | CN1249942C Random access method utilized in orthographic frequency division multiple access (OFDM) system |
| 04/05/2006 | CN1249941C Turbo method used for OFDM frequency synchronization |
| 04/05/2006 | CN1249940C Orthogonal frequency division multiplexing receiver utilizing polar coordinate system and its method |
| 04/05/2006 | CN1249932C Communication device and communication method |
| 04/05/2006 | CN1249929C Amplitude limiter for predicting parallel branch and amplitude limiting method |
| 04/04/2006 | US7024682 Software controlled multi-mode bi-directional communication device |