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)
10/1999
10/28/1999WO1999038337A3 Method and system for generating a complex pseudonoise sequence for processing a code division multiple access signal
10/28/1999WO1999038300A3 Radio telephone for spread-spectrum system using nonlinear modulation
10/28/1999DE19818408C1 Modulated signal recognition device for telecommunications or data processing
10/28/1999CA2328865A1 A wireless internet access method and system
10/27/1999EP0952714A2 Digital audio broadcast receiver and tuning method thereof
10/27/1999EP0952713A2 A frequency and timing synchronization circuit making use of a chirp signal
10/27/1999EP0952712A2 Blind equalization algorithm with joint use of the constant modulus algorithm and the multimodulus algorithm
10/27/1999EP0952696A2 Technique for communicating digitally modulated signals over an amplitude-modulation frequency band
10/27/1999EP0952678A1 Digital modulation system using modified orthogonal codes to reduce autocorrelation sidelobes
10/27/1999EP0952665A2 Slope, drift and offset compensation in zero-if receivers
10/27/1999EP0951770A1 Method and apparatus for decision directed demodulation using antenna arrays and spatial processing
10/27/1999EP0951769A1 Adaptive predistortion system
10/27/1999EP0951751A1 Synchronous demodulator
10/27/1999CN1233368A Receiver signal processing system for CAP signal
10/27/1999CN1233367A Method and apparatus for decision directed demodulation using antenna arrays and spatial processing
10/27/1999CN1233365A Data transmission by impulse position modulation and amplitude modulation
10/27/1999CN1233133A Television receiver
10/27/1999CN1233122A Radio receiving method and apparatus
10/26/1999US5974584 Parity checking in a real-time digital communications system
10/26/1999US5974306 Time-share I-Q Mixer system with distribution switch feeding in-phase and quadrature polarity inverters
10/26/1999US5974100 Method and apparatus in a communication receiver for compensating for channel amplitude and phase distortion
10/26/1999US5974099 Unreliability detector apparatus and reproduction apparatus provided with the unreliability detector apparatus
10/26/1999US5974098 Received signal detector for digital demodulator
10/26/1999US5974096 Digital quadrature detection circuit
10/26/1999US5974095 Digital satellite broadcasting receiver
10/26/1999US5974094 FFT receiver for MFSK
10/26/1999US5974091 Composite trellis system and method
10/26/1999US5974090 Special eye pattern and modulation and demodulation method using the same
10/26/1999US5974040 Receiver and transmitter-receiver having variable attenuator to avoid saturation by a strong signal
10/26/1999US5973642 Adaptive antenna arrays for orthogonal frequency division multiplexing systems with co-channel interference
10/26/1999US5973559 Transmitter for high frequency signals
10/26/1999CA2131922C Code division multiple access (cdma) inbound messaging system utilizing re-use of sequences
10/24/1999CA2266166A1 Blind equalization algorithm with joint use of the constant modulus algorithm and the multimodulus algorithm
10/22/1999CA2261826A1 Digital modulation system using modified orthogonal codes to reduce autocorrelation
10/21/1999WO1999053667A1 Method and apparatus for fine frequency synchronization in multi-carrier demodulation systems
10/21/1999WO1999053666A1 Coarse frequency synchronisation in multicarrier systems
10/21/1999WO1999053665A1 Frame structure and frame synchronization for multicarrier systems
10/21/1999WO1999053664A1 Differential coding and carrier recovery for multicarrier systems
10/21/1999WO1999053663A1 System, device and method for improving a defined property of transform-domain signals
10/21/1999WO1999053662A1 System, device and method for improving a defined property of transform-domain signals
10/21/1999WO1999053661A1 Signal coupler using low voltage filtering
10/21/1999WO1999053660A1 Dual-mode receiver for receiving satellite and terrestrial signals in a digital broadcast system
10/21/1999WO1999053659A1 Method for demodulating a carrier wave modulated by a digital symbol sequence
10/21/1999WO1999046887A3 Wireless local area network spread spectrum transceiver with multipath interference mitigation
10/21/1999WO1999045666A3 Method for reducing interference, and synthesizer arrangement
10/21/1999CA2328145A1 System, device and method for improving a defined property of transform-domain signals
10/21/1999CA2328098A1 System, device and method for improving a defined property of transform-domain signals
10/20/1999EP0951156A2 Multicarrier transceiver with a single Fourier transformer
10/20/1999EP0951151A2 Pilot signal transmission technique and digital communication system using same
10/20/1999EP0951143A2 Technique for effectively rendering power amplification and control in wireless communications
10/20/1999EP0951091A2 Wireless communications system having a space-time architecture employing multi-element antennas at both the transmitter and receiver
10/20/1999EP0950306A1 Method and device for formatting a clipping noise in a multicarrier modulation
10/20/1999EP0950305A1 Apparatus, methods and computer program products for sequential maximum likelihood estimating communications signals using whitening path metrics
10/20/1999EP0950301A1 Transmitter method and transmission system using adaptive coding based on channel characteristics
10/20/1999CN1232596A Mobile communication system
10/20/1999CN1232334A Channel tracking in mobile receiver
10/20/1999CN1232327A Multi-carrier transmission system and method thereof
10/19/1999US5970476 Method and apparatus for industrial data acquisition and product costing
10/19/1999US5970397 Method for the frequency correction of multicarrier signals and related apparatus
10/19/1999US5970105 Apparatus and method for efficient wireless communications in the presence of frequency error
10/19/1999US5970101 Phase detecting method by analog-to-digital conversion
10/19/1999US5970098 Multilevel encoder
10/19/1999US5970095 Secure data transmission on a TDM isochronous network
10/19/1999US5970094 Adaptive equalizer employing filter input circuit in a circular structure
10/19/1999US5970093 Fractionally-spaced adaptively-equalized self-recovering digital receiver for amplitude-Phase modulated signals
10/19/1999US5970092 Adaptively equalized burst receiver and method for upstream broadband data
10/19/1999US5970088 Reverse channel next cancellation for MDSL modem pool
10/19/1999US5970053 Method and apparatus for controlling peak factor of coherent frequency-division-multiplexed systems
10/19/1999US5968200 Implied interleaving a family of systematic interleavers and deinterleavers
10/18/1999CA2265143A1 Technique for effectively rendering power amplification and control in wireless communications
10/14/1999WO1999052252A1 Frame synchronisation in multi-carrier transmission systems
10/14/1999WO1999052239A1 Controlled aliasing to simplify service selection
10/14/1999WO1999052216A2 Channel encoding/decoding device and method
10/14/1999WO1999052206A1 Hybrid chireix/doherty amplifiers power waveform synthesis
10/14/1999WO1999035756A8 ACTIVATION OF MULTIPLE xDSL MODEMS WITH CHANNEL PROBE
10/14/1999WO1999020027B1 Splitterless multicarrier modem
10/14/1999DE19910903A1 Method of expanded configuration indication for vestigial sideband television signals
10/14/1999DE19815701A1 Verfahren zum Demodulieren einer mit einer digitalen Symbolfolge modulierten Trägerwelle A method for demodulating a modulated with a digital symbol sequence carrier wave
10/14/1999CA2722546A1 Filter for impulse response shortening, with addition spectral constraints, for multicarrier transmission
10/13/1999EP0949786A1 ASK-demodulator for contactless chipcard
10/13/1999EP0949784A2 Reduction of cross-talk in broadband systems
10/13/1999EP0949772A2 Radio Data System (RDS) demodulator for receiving broadcast programmes carrying both Radio Data signals and ARI signals, comprising a digital filter means for obtaining a high attenuation of ARI signals
10/13/1999EP0949765A2 Digital modulation system using extended code set
10/13/1999EP0949576A1 Data carrier and method for wireless reception of data and energy
10/13/1999EP0806079A4 Transmission and reception of cpm spread-spectrum communications
10/13/1999EP0688454A4 Multi-mode identification system
10/13/1999EP0664187B1 Grinding tape and method of manufacturing the same
10/13/1999CN1231798A Receiver for adjusting SYNC level in VSB systems
10/13/1999CN1231553A Recovery of carrier signal from modulated input signal
10/12/1999US5966416 Verification of PN synchronization in a spread-spectrum communications receiver
10/12/1999US5966413 Digital demodulator and method of operation
10/12/1999US5966412 Apparatus and method for processing a Quadrature Amplitude Modulated (QAM) signal
10/12/1999US5966405 Frequency deviation measuring device
10/12/1999US5966376 Apparatus and method for digital data transmission using orthogonal cyclic codes
10/12/1999US5966055 Phase-shift modulation of a direct antenna-driving VCO
10/07/1999WO1999050981A1 Digital audio broadcasting method using puncturable convolutional code
10/07/1999WO1999050980A2 Hybrid and all digital fm in-band-on-channel digital audio broadcasting method and system
10/07/1999WO1999050967A1 ACTIVATION OF MULTIPLE xDSL MODEMS WITH IMPLICIT CHANNEL PROBE
10/07/1999WO1999050966A1 Distortion correction circuit for direct conversion receiver
10/07/1999WO1999050738A2 Passive data carrier having means for reducing the power consumption
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