Patents for H04L 27 - Modulated-carrier systems (89,721) |
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05/25/2004 | US6741217 Tunable waveguide antenna |
05/25/2004 | US6741211 Tunable dipole antenna |
05/25/2004 | US6741128 Distortion canceling circuit |
05/25/2004 | CA2413282C System and method for peak power reduction in multiple carrier communications systems |
05/25/2004 | CA2210508C Method for the transmission of a low-rate supplementary channel in high-rate coherent optical transmission systems |
05/25/2004 | CA2208081C Dual-mode fm/cdma communication system |
05/25/2004 | CA2128327C Method and apparatus for the formatting of data for transmission |
05/21/2004 | WO2004043073A1 Configuration for implementing enhanced vsb on the studio side |
05/21/2004 | WO2004043028A1 Papr reduction |
05/21/2004 | WO2004042988A1 A method of determining feedback in a communication system |
05/21/2004 | WO2004042981A2 Method and apparatus for reducing a peak-to-average power ratio in an orthogonal frequency division multiplex signal |
05/21/2004 | WO2004042974A1 Sampling clock error detecting apparatus and method, and orthogonal frequency division multiplexing (ofdm) receiver including the same |
05/21/2004 | WO2004042949A1 Pilot symbols in communication systems |
05/21/2004 | WO2004004260A3 Training using overhead data in a wireless communications network |
05/21/2004 | WO2003026179A8 Mapping of bit streams into mpeg frames |
05/21/2004 | WO2002063808A8 A system and method for data transmission in dmt-based dsl modems |
05/20/2004 | US20040097212 Direct conversion receiver and dc offset reducing method |
05/20/2004 | US20040097210 Multiband radio signal transmitter/receiver |
05/20/2004 | US20040097207 Receiver to determine modulation type |
05/20/2004 | US20040097202 Signal processing apparatus and signal processing method |
05/20/2004 | US20040096024 Phase detector capable of detecting an accumulated value of phase displacement at a high speed and frequency stability measuring apparatus for arbitrary nominal frequency using the same |
05/20/2004 | US20040096023 Reduced phase error derotator system and method |
05/20/2004 | US20040096021 Communications methods for narrow band demodulation |
05/20/2004 | US20040096019 Frequency offset calculation method using log transforms and linear approximation |
05/20/2004 | US20040096015 Reception device, demodulator, and communication method |
05/20/2004 | US20040096012 Method and device for transmitting and identifying a modulation type in digital communication systems by way of a phase rotation factor applied to a training sequence |
05/20/2004 | US20040096011 Fast transmitter based on table lookup |
05/20/2004 | US20040096010 Communications system including a narrow band modulator |
05/20/2004 | US20040096009 Communications methods including narrow band modulation |
05/20/2004 | US20040096007 Method for generating soft bit information from gray coded signals |
05/20/2004 | US20040095995 Method for determining imbalance in a vector signal modulator |
05/20/2004 | US20040095993 Method and apparatus for I/Q imbalance estimation |
05/20/2004 | US20040095909 Method of and apparatus for amplitude tracking and automatic frequency correction of a time-division multiple-access channel |
05/20/2004 | US20040095904 Synchronization techniques for a wireless system |
05/20/2004 | US20040095902 Beacon signaling in a wireless system |
05/20/2004 | US20040095899 Pilot signal transmission technique and digital communication system using same |
05/20/2004 | US20040095895 Method for power detection of multicarrier signals, radio transmission unit and module for such a unit |
05/20/2004 | US20040095880 Multiple access wireless communications system using a multisector configuration |
05/20/2004 | US20040095513 Quadratic video demodulation with baseband nyquist filter |
05/20/2004 | US20040095211 Tunable ferro-electric filter |
05/19/2004 | EP1420558A1 Reception device, demodulator, and communication method |
05/19/2004 | EP1420555A2 Sequence for channel estimation and method for estimating a transmission channel which uses such a sequence for channel estimation |
05/19/2004 | EP1420521A2 Channel diagnostic systems and methods |
05/19/2004 | EP1420520A2 Despreading of a CPM (continuous phase modulation) spread-spectrum signal |
05/19/2004 | EP1419630A1 Monitoring upstream frequency band |
05/19/2004 | EP1419603A1 Method for physical layer automatic repeat request for a base station |
05/19/2004 | EP1419597A1 Method for improving quality of transmitted data using loopback during operation |
05/19/2004 | EP1419594A2 Method and apparatus implementing retransmission in a communication system providing h-arq |
05/19/2004 | EP1419582A1 System and method performing quadrature amplitude modulation by combining co-sets and strongly coded co-set identifiers |
05/19/2004 | EP1316144B1 Receiver circuit, especially for mobile radiotelephony |
05/19/2004 | EP1118195B1 Method and apparatus for demodulating and equalizing an am compatible digital audio broadcast signal |
05/19/2004 | EP0981864B1 Integrable radio receiver circuit for frequency-modulated digital signals |
05/19/2004 | DE10350700A1 Device for suppressing noise in received electronic information transmission signal has controller for controlling adaptive filter mode depending on whether received signal contains signal of interest |
05/19/2004 | DE10251313A1 Gemeinsame Benutzung eines Schaltkreises für Frequenz- und Phasenfehlerkorrektur Sharing a circuit for frequency and phase error correction |
05/19/2004 | DE10122698B4 Verfahren zur Bestimmung von Modulationsverfahren für Unter-Träger eines OFDM-Symbols A method for determining modulation schemes for sub-carrier of an OFDM symbol |
05/19/2004 | CN1498478A Coding scheme for wireless communication system |
05/19/2004 | CN1498475A Method and apparatus for performing digital communicatons |
05/19/2004 | CN1498474A Multi-carrier communication with time devision multiplexing and carrier-selective loading |
05/19/2004 | CN1498457A Direct conversion receiver and DC offset reducing method |
05/19/2004 | CN1497964A Device for decoing video signal of different form coded |
05/19/2004 | CN1497963A Device and method of carrier recovery for high-definition TV. receiver |
05/19/2004 | CN1497918A Single carrier transmission system able to adapting change of dynamic environment and its method |
05/19/2004 | CN1497917A Single carrier transmission system able to adapting change of dynamic environment and its method |
05/19/2004 | CN1497916A Single carrier transmission system able to reducing signal distortion and its method |
05/19/2004 | CN1497886A Orthogonal frequency division multiplex signal equalizer, method, program, ground digital broadcast receiver |
05/19/2004 | CN1497885A Radio communication system, method, and emitting and receiving device suitable for said system and mathod |
05/19/2004 | CN1497884A Single carrier transmission system and its method |
05/19/2004 | CN1497883A Single carrier transmission system and its method |
05/19/2004 | CN1497863A Method of emitting data code element to user in ultra wide band telecommunication system |
05/19/2004 | CN1497847A Data converter, signal generator, emittor, communication equipment and data converting method |
05/19/2004 | CN1497836A Electronic circuit, modulating method, information processing devcie and information processing method |
05/19/2004 | CN1150770C Convolutional decoder |
05/19/2004 | CN1150751C Apparatus for decoding video signals encoded in different formats |
05/19/2004 | CN1150730C Constrained-envelope digital-communications transmission system and method thereof |
05/19/2004 | CN1150729C High-speed upstream modem communication |
05/19/2004 | CN1150694C Modulation system and methods including oversampling of narrow bandwidth signals and DC offset compensation |
05/19/2004 | CN1150682C Digital variable symbol rate modulation |
05/18/2004 | US6738979 Satellite broadcast receiver which is not influenced by unnecessary signal components |
05/18/2004 | US6738608 Frequency-timing control loop for wireless communication systems |
05/18/2004 | US6738443 Optimized synchronization preamble structure |
05/18/2004 | US6738440 Subscriber line transmission systems |
05/18/2004 | US6738433 Quadricorrelator for a demodulator for frequency-modulated signals |
05/18/2004 | US6738431 Method for neutralizing a transmitter tube |
05/18/2004 | US6738430 Apparatus and method for digital wireless communications |
05/18/2004 | US6738429 Decision-directed carrier frequency detector and method for QAM |
05/18/2004 | US6738418 Method and apparatus for adaptive data allocation in a multi-carrier communication system |
05/18/2004 | US6738415 Bi-directional communication system |
05/18/2004 | US6738414 Radio and communication method using a transmitted intermediate frequency |
05/18/2004 | US6738375 Packet configuring method and packet receiver |
05/18/2004 | US6738370 Method and apparatus implementing retransmission in a communication system providing H-ARQ |
05/18/2004 | US6738359 Communication format control method and apparatus |
05/18/2004 | US6738102 Local digital television signal generator |
05/18/2004 | US6737973 Amplifier modulation |
05/18/2004 | US6737930 Tunable planar capacitor |
05/18/2004 | US6737918 Distortion compensation apparatus |
05/18/2004 | CA2259818C Communication system |
05/13/2004 | WO2004040924A1 Method and apparatus for tailoring carrier power requirements according to availability in layered modulation systems |
05/13/2004 | WO2004040897A2 Maximizing power and spectral efficiencies for layered and conventional modulations |
05/13/2004 | WO2004040871A1 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 |
05/13/2004 | WO2004040870A1 A method and system for broadband predistortion linearizaion |