Patents for H04L 27 - Modulated-carrier systems (89,721) |
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07/10/2002 | EP1221199A1 Transceiver with local oscillator frequency setting using the demodulated bit rate |
07/10/2002 | EP1221198A1 A simplified digital fir filter for direct sequence spread spectrum communication systems |
07/10/2002 | EP1114524A4 Doppler corrected spread spectrum matched filter |
07/10/2002 | CN1358385A Method and apparatus for frequency offset correction |
07/10/2002 | CN1358367A Method and apparatus for determining transmission mode and synchronization for digital audio broadcasting signal |
07/10/2002 | CN1358001A Device and method of utilizing method filter to estimate phase dat ain communication system |
07/10/2002 | CN1087550C Receiver with sigma-delta analog-to-digital conversion for digital signals buried in TV signals |
07/10/2002 | CN1087543C Digital communication system and receiver for use in such system |
07/09/2002 | US6418558 Hybrid fiber/coax video and telephony communication |
07/09/2002 | US6418300 Method and device for transmitting mixed analog and digital signals by the same transmitter |
07/09/2002 | US6418221 Signal coupler using low voltage filtering |
07/09/2002 | US6418174 Frequency shift key modulator |
07/09/2002 | US6418173 Transmission Apparatus |
07/09/2002 | US6418171 Method for coding and decoding digital data for communication |
07/09/2002 | US6418170 Method and apparatus for achieving 180° phase invariant transmission in a PCM modem system |
07/09/2002 | US6418164 Adaptive equalizer with enhanced error quantization |
07/09/2002 | US6418161 Spread spectrum bit allocation algorithm |
07/09/2002 | US6417977 System for testing and cleaning a removable media drive |
07/09/2002 | US6417834 Arrangement for displaying the signal statuses of a QAM-modulated signal |
07/09/2002 | US6417736 Multiple-voltage supply power amplifier with dynamic headroom control |
07/09/2002 | CA2227162C Cellular mobile telephone system |
07/09/2002 | CA2043645C Carrier wave recovery device with means for preventing false frequency lockings |
07/04/2002 | WO2002052808A1 Radio transmitter, radio receiver, and multilevel modulation communication system |
07/04/2002 | WO2002052807A2 Equalisation and subcarrier suppression |
07/04/2002 | WO2002052806A1 Demodulation of ofdm and td-cdma signals using the same fft hardware |
07/04/2002 | WO2002052805A2 Power cutback configuration of digital subscriber line transceivers using public switched telephone network signaling |
07/04/2002 | WO2002052772A2 Endcoded qam |
07/04/2002 | WO2002052521A2 Radiofrequency receiver for remote meter reading and remote meter reading method comprising same |
07/04/2002 | WO2002052485A1 Improved identification reader |
07/04/2002 | WO2002052419A2 Data communication apparatus |
07/04/2002 | WO2002028046A3 Residual phase error reduction in ofdm |
07/04/2002 | WO2002005505A3 A frequency-domain equalizer for terrestrial digital tv reception. |
07/04/2002 | WO2001099439A3 Adaptive equalisation, in particular for linc processing |
07/04/2002 | WO2001082538A3 Signal amplitude restoration apparatus and method, especially for chaotic signals |
07/04/2002 | US20020088005 Method and system for tiered digital television terrestrial broadcasting services using multi-bit-stream frequency interleaved OFDM |
07/04/2002 | US20020086708 Apparatus and method for OFDM data communications |
07/04/2002 | US20020086707 Wireless communication system using block filtering and fast equalization-demodulation and method of operation |
07/04/2002 | US20020086690 Transmitting apparatus, receiving apparatus, and communication system |
07/04/2002 | US20020086668 Transceiver |
07/04/2002 | US20020086652 PLL circuit and wireless mobile station with that PLL circuit |
07/04/2002 | US20020085653 Beam formation circuit and an apparatus and a method of receiving radio frequency signals making use of a smart antenna |
07/04/2002 | US20020085652 Automatic frequency control unit and spectrum spread receiving apparatus |
07/04/2002 | US20020085651 Removing frequency and timing offsets in digital transmitters and receivers |
07/04/2002 | US20020085647 Radio apparatus having distortion compensating function |
07/04/2002 | US20020085645 Bi-directional wireless communication |
07/04/2002 | US20020085641 Method and system for interference averaging in a wireless communication system |
07/04/2002 | US20020085640 Multi-carrier connection initialisation and symbol transmission |
07/04/2002 | US20020085626 Automatic filter for asymmetric digital subscriber line system |
07/04/2002 | US20020085486 Method and device for transmitting hierarchical data |
07/04/2002 | US20020084814 PLL circuit and wireless mobile satation with that PLL circuit |
07/03/2002 | EP1220506A1 Beam formation circuit and an apparatus and a method of receiving radio frequency signals making use of a smart antenna |
07/03/2002 | EP1220505A2 Use of a pilot tone for clock and carrier recovery in mutlicarrier transmission |
07/03/2002 | EP1220504A1 FSK demodulation |
07/03/2002 | EP1220503A1 Method and circuit for acquisition |
07/03/2002 | EP1220484A2 Transmitting/receiving system |
07/03/2002 | EP1220453A1 PLL circuit with reduced settling time |
07/03/2002 | EP1220441A2 Direct-conversion receiver system and method, especially a GPS receiver system with high pass filtering |
07/03/2002 | EP1219130A1 Method and system for frequency spectrum resource allocation |
07/03/2002 | EP1219086A1 Method for determining the amplitude imbalance at the receiving end and quadrature error in a multi-carrier system |
07/03/2002 | EP1219085A2 Subdimensional single-carrier modulation |
07/03/2002 | EP1219055A2 Device for receiving digital signals and device for transmitting digital signals |
07/03/2002 | EP1219039A1 Device and method for processing a digital data signal in a cdma radio transmitter |
07/03/2002 | EP1219020A1 Wireless transmitter having a modified translation loop architecture |
07/03/2002 | EP1092305B1 Verfahren und vorrichtung zum senden und empfangen von informationssymbolen mittels einer mehrzahl von trägern |
07/03/2002 | CN1357173A Flexibility enhancement to modified fast convolution angorithm |
07/03/2002 | CN1356814A System and method for effectively conducting large-scale fast fourier transform |
07/03/2002 | CN1356799A Method for generating orthogonal spectrum-spreading code in mobile communication system |
07/03/2002 | CN1087120C Direct frequency conversion receiver |
07/02/2002 | US6415133 Acquisition and tracking in communication system with multicarrier telephony transport |
07/02/2002 | US6415005 Digital communication apparatus |
07/02/2002 | US6415004 Phase detector, timing recovery device using the same, and a demodulator using the timing recovery device |
07/02/2002 | US6415002 Phase and amplitude modulation of baseband signals |
07/02/2002 | US6414986 Method and system for radio communication |
07/02/2002 | US6414985 Method for determining reference phase in radio communication system which uses orthogonal M-ary modulation, and coherent detection method using the same |
07/02/2002 | US6414983 Digital communication apparatus |
07/02/2002 | US6414936 Method of estimating carrier frequency offset in an orthogonal frequency division multiplexing system |
06/27/2002 | WO2002051102A2 Method of providing high-speed digital services over a switched telephone network |
06/27/2002 | WO2002051091A1 Phase error detection and correction for differential signals |
06/27/2002 | WO2002051090A1 Method of detecting pilot tones in a noisy signal |
06/27/2002 | WO2002051089A2 Multicarrier transmission on an electrical power supply line |
06/27/2002 | WO2002051088A2 Direct phase and frequency demodulation |
06/27/2002 | WO2002051086A2 Estimation and correction of sampling timing error in discrete multitone (dmt) receiver by an iterative process over individual carriers |
06/27/2002 | WO2002051083A1 Quadrature modulator with pulse-shaping |
06/27/2002 | WO2002051024A1 Digital point-to-multipoint data transmission system on an electric network |
06/27/2002 | WO2002051022A1 Radio transmission device and method for aligning parameters thereof |
06/27/2002 | WO2002008864A3 Dynamic link assignment in a communication system |
06/27/2002 | US20020082047 Distributed architecture wireless RF modem |
06/27/2002 | US20020081990 Direct-conversion receiver system and method, especially a GPS receiver system with high pass filtering |
06/27/2002 | US20020081989 Method and apparatus for adjusting reference frequency in receiver and storage medium storing control program therefor |
06/27/2002 | US20020081983 Signal source with multiphase filter |
06/27/2002 | US20020080933 Power cutback configuration of digital subscriber line transceivers using public switched telephone network signaling |
06/27/2002 | US20020080895 Method of receiving information |
06/27/2002 | US20020080893 Portable communication device and method therefor |
06/27/2002 | US20020080892 Demodulator and method for second harmonic cancellation |
06/27/2002 | US20020080891 Base station transmitter having digital predistorter and predistortion method thereof |
06/27/2002 | US20020080887 In-band adjacent-channel digital audio broadcasting system |
06/27/2002 | US20020080885 Combined turbo coding and trellis coded modulation |
06/27/2002 | US20020080884 Variable-rate QAM transceiver |
06/27/2002 | US20020080869 DSL link with embedded control and multi-channel capability |
06/27/2002 | US20020080867 Robust signaling techniques in multicarrier systems |