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)
08/2003
08/05/2003US6603349 Doppler learning phase lock loop for burst demodulator
08/05/2003CA2328174C Frame structure and frame synchronization for multicarrier systems
08/05/2003CA2328171C Dual-mode receiver for receiving satellite and terrestrial signals in a digital broadcast system
08/05/2003CA2135918C Power line coupler modem device for communication over electrical lines
08/05/2003CA2058775C Transmission and decoding of tree-encoder parameters of analogue signals
07/2003
07/31/2003WO2003063515A2 Psk optical signal demodulator
07/31/2003WO2003063438A1 Highly integrated adsl circuit
07/31/2003WO2003063437A1 High-frequency signal reception apparatus and manufacturing method thereof
07/31/2003WO2003063435A1 Delay locked loop synthesizer with multiple outputs and digital modulation
07/31/2003WO2003063398A1 Method and apparatus for performing digital communications
07/31/2003WO2003063380A2 Method of and system for power line carrier communications
07/31/2003WO2003063336A2 System and method for i-q mismatch compensation in a low if or zero if receiver
07/31/2003WO2003063060A2 Asymmetric digital subscriber line modem apparatus and methods therefor
07/31/2003WO2003062964A2 An adaptive threshold algorithm for real-time wavelet de-noising applications
07/31/2003WO2003028328A3 Start up of a phase modulator
07/31/2003WO2003028327A3 Efficient methods for filtering to avoid inter-symbol interference and processing digital signals having large frequency guard bands
07/31/2003WO2003007563A3 Ask demodulator for chip cards
07/31/2003US20030145273 Coded modulation method, which takes tailbits and their coding into account
07/31/2003US20030144033 Multi-carrier communication method and multi-carrier communication apparatus
07/31/2003US20030143951 Pilot frequency acquisition based on a window of data samples
07/31/2003US20030142767 Base band circuit of receiver and low cut-off frequency control method
07/31/2003US20030142765 Quadrature vestigial sideband digital communications method and system with correlated noise removal
07/31/2003US20030142764 Single chip VLSI implementation of a digital receiver employing orthogonal frequency division multiplexing
07/31/2003US20030142761 Frequency offset estimation apparatus for intersymbol interference channels
07/31/2003US20030142760 Carrier recovery apparatus of VSB receiver and a method of recovering carrier using the same
07/31/2003US20030142759 Transmission system for reduction of amateur radio interference
07/31/2003US20030142757 Modulation apparatus/method, demodulation apparatus/method and program presenting medium
07/31/2003US20030142754 Apparatus and method for reducing PAPR in an OFDM mobile communication system
07/31/2003US20030142734 Pilot interpolation for a gated pilot with compensation for induced phase changes
07/31/2003US20030142733 Method for frequency offset estimation in a direct sequence spread spectrum communications receiver
07/31/2003US20030142694 Information transmission method, mobile communications system, base station and mobile station in which data size of identification data is reduced
07/31/2003US20030142646 Subscriber RF telephone system for providing multiple speech and/or data signals simultaneously over either a single or a plurality of RF channels
07/31/2003US20030142622 Data transmission system and data transmission method
07/31/2003US20030142621 Peak power suppressing apparatus and peak power suppressing method
07/31/2003US20030142004 Device for transmitting data in a motor vehicle
07/31/2003US20030141938 Quadrature vestigial sideband digital communications method
07/30/2003EP1331783A2 Apparatus and method for recovering symbol timing in OFDM receiver
07/30/2003EP1331782A2 OFDM diversity receiver and receiving method using a plurality of equalizers
07/30/2003EP1331781A2 Efficient FFT implementation for ADSL
07/30/2003EP1331780A1 Method and apparatus for peak power reduction in OFDM communications
07/30/2003EP1331778A2 Waveform shaping method and equipment
07/30/2003EP1331743A1 A method and an electronic circuit for clipping of signals, especially CDMA or OFDM signals, with multiple inputs and outputs
07/30/2003EP1330905A1 Modulator with low sensitivity to amplitude and phase errors of the carrier signal
07/30/2003EP1330904A2 Clock synchronization, frequency synchronization, channel sounder and equalizer for ofdm using pilots equidistant in the frequency domain
07/30/2003EP1330885A2 Signal strength compensation for mobile radio channels that considerably vary with time
07/30/2003EP1330874A1 Line driver with output impedance synthesis
07/30/2003EP1330871A2 Multiple-voltage supply power amplifier with dynamic headroom control
07/30/2003EP1330869A1 Method and device for detecting and processing signal waves
07/30/2003EP1192709B1 Device and method for demodulating frequency-modulated signals
07/30/2003EP1082809B1 Methods of suppressing reference oscillator harmonic interference and related receivers
07/30/2003EP1072091B1 Tuning system for search algorithm for a satellite receiver with lnb drift
07/30/2003EP1038380B1 Phase digitizer for radio communications
07/30/2003CN1433620A Method for detecting remaining carrier power on multi-carrier signal that is QAM-modulated in the 8K mode according to the DVB-T-standard
07/30/2003CN1433619A Equalization with DC-offset compensation
07/30/2003CN1433616A Method and apparatus for implementing leaf node proxy in network
07/30/2003CN1433179A Signal clamping method and circuit
07/30/2003CN1433178A Sign mapping interleaver and interleaving method of HSDPA mobile communication system
07/30/2003CN1433169A Partial transmission sequence method based on minimal non-linear noise for orthogonal frequency-division multiplexing system
07/30/2003CN1433168A Channel noise resisting balance method based on Walsh transformation for orthogonal frequency-division multiplexing system
07/30/2003CN1433167A OFDM communication equipment, OFDM communication method and OFDM communication program
07/30/2003CN1433166A Regular sign restoring device and method for orthogonal frequency-division multiplexing receiver
07/30/2003CN1116754C Method for transmitting multi-carrier signal in data transmitting system and multi-carrier transmitter
07/30/2003CN1116753C Method and apparatus for linear predicting
07/30/2003CN1116736C Double-side band pilot technology for distorted control system generated from reducing circuit
07/30/2003CN1116735C Hybrid Chireix/Doherty amplifiers power waveform synthesis
07/29/2003US6601213 Demodulator and communications system
07/29/2003US6600909 Device for receiving signals from satellite radio-navigation systems
07/29/2003US6600382 Microwave phase modulator
07/29/2003CA2287759C Wireless transmission method for antenna arrays using unitary space-time signals
07/29/2003CA2126102C Frequency synchronized bidirectional radio system
07/24/2003WO2003061234A1 Method for establishing a data transmission connection between xdsl transceivers
07/24/2003WO2003061233A2 Method and apparatus for coding along a sinusoidal waveform
07/24/2003WO2003061232A1 Core wireless engine
07/24/2003WO2003061184A1 Self-interference removal using converter compensation in a relayed communication system
07/24/2003WO2003061178A2 Electronic transmitter/receiver comprising a bit deleting device and an interleaver
07/24/2003WO2003061170A1 Pilot multiplex method in ofdm system and ofdm receiving method
07/24/2003WO2003049396A3 Cancellation of interference in multicarrier receivers
07/24/2003WO2003034678A3 Method for measuring the modulation error in digital modulated high frequency signals
07/24/2003WO2003001731A8 Cooperative code-enhanced multi-user communications system
07/24/2003WO2002093856A3 Control of transmission by adjustment of delay between amplitude and phase components
07/24/2003US20030139202 Radio
07/24/2003US20030139167 System and method for I-Q mismatch compensation in a low IF or zero IF receiver
07/24/2003US20030139165 Adaptive threshold algorithm for real-time wavelet de-noising applications
07/24/2003US20030139148 Wireless transmitter having a modified translation loop architecture
07/24/2003US20030138064 Method of estimating a radio frequency offset based on sequences of predefined symbols, and receiver implementing said method
07/24/2003US20030138063 Channel estimation sequence and method of estimating a transmission channel which uses such a channel estimation sequence
07/24/2003US20030138060 COFDM demodulator with an optimal FFT analysis window positioning
07/24/2003US20030138058 Diversity coded OFDM for high data-rate communication
07/24/2003US20030138056 Digital radio communication system
07/24/2003US20030138055 Decoder and decoding method
07/24/2003US20030138054 Apparatus and method for calculating soft decision value input to channel decoder in a data communication system
07/24/2003US20030138037 Method and apparatus for time equalization
07/24/2003US20030137955 Method and apparatus for transmitting and receiving information about forward channel status in a multi-carrier mobile communication system
07/24/2003US20030137949 Method and an electronic circuit for clipping of signals
07/24/2003US20030137929 High-frequency receiving apparatus having wide frequency pull-in range
07/24/2003US20030137928 Method and apparatus for transmission and reception of FM in-band on-channel digital audio broadcasting
07/24/2003US20030137926 STFBC coding/decoding apparatus and method in an OFDM mobile communication system
07/24/2003US20030137440 Low voltage swing pad driver and receiver
07/24/2003US20030137322 Highly integrated asymmetric digital subscriber line (ADSL) circuit
07/23/2003EP1330093A2 Multiresolution transmission
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