| Patents for H04L 27 - Modulated-carrier systems (89,721) |
|---|
| 04/25/2001 | EP1094631A1 Quest for the optimum sampling point in a TDMA packet transmission system |
| 04/25/2001 | EP1094629A2 Method of identifying an improved configuration for a communication system using coding gain and an apparatus therefor |
| 04/25/2001 | EP1094627A1 Method and device to retrieve RDS information |
| 04/25/2001 | EP1094596A2 Quadrature receiver with a vco controlled by the demodulated bit-rate |
| 04/25/2001 | EP1073210A9 Apparatus for spread spectrum data transmission comprising a data receiver |
| 04/25/2001 | CN1292964A Method and equipment for generating signal having frame structure, and method and equipment of frame synchronization |
| 04/25/2001 | CN1292963A Coarse frequency synchronization method and equipment |
| 04/25/2001 | CN1292962A Demodulator having rotation means for frequency offset correction |
| 04/25/2001 | CN1292952A Apparatus, system and method for improving dynamic range of receiver in presence of narrowband interfering signal |
| 04/25/2001 | CN1292949A Digital signal modulation system |
| 04/25/2001 | CN1292947A Receiver for digital terrestrial broadcasting |
| 04/24/2001 | US6222891 Timing recovery using the pilot signal in high definition TV |
| 04/24/2001 | US6222888 Method and circuit for controlling setup of multichannel system |
| 04/24/2001 | US6222878 Communication system with end-to-end quadrature balance control |
| 04/24/2001 | US6222874 Frequency acquisition method for direct sequence spread spectrum systems |
| 04/24/2001 | US6222832 Fast Acquisition of traffic channels for a highly variable data rate reverse link of a CDMA wireless communication system |
| 04/24/2001 | CA2210603C Phase angle data-trigonometric function value converter circuit and composite diversity receiver |
| 04/19/2001 | WO2001028182A1 Data transmission apparatus |
| 04/19/2001 | WO2001028178A1 Method for determing a trellis path using a reference matrix |
| 04/19/2001 | WO2001028177A1 Analogue front end with multilevel sigma-delta modulator for adsl |
| 04/19/2001 | WO2001028176A2 Frequency correction using the cordic algorithm |
| 04/19/2001 | WO2001028150A2 Method and apparatus for eliminating the effects of frequency offsets in a digital communication system |
| 04/19/2001 | WO2001028139A1 Method for producing a test signal with a predetermined signal-to-noise ratio on a freely selectable output frequency |
| 04/19/2001 | WO2001028121A2 Spread-spectrum modem with saw resonator and pulse shaping |
| 04/19/2001 | WO2001028088A1 Adsl filter |
| 04/19/2001 | WO2001028085A1 Fsk demodulator using a frequency conversion stage with three parallel mixers |
| 04/19/2001 | WO2000065792A8 A windowing function for maintaining orthogonality of channels in the reception of ofdm symbols |
| 04/19/2001 | DE19949774A1 Measuring demodulator and modulation fault meter for digital modulated reception signals |
| 04/19/2001 | DE19949632A1 Verfahren zum Erzeugen eines Prüfsignals mit vorbestimmtem Signal/Rausch-Verhältnis auf einer frei wählbaren Ausgangsfrequenz A method for generating a test signal having a predetermined signal / noise ratio on a selectable output frequency |
| 04/19/2001 | DE19948899A1 Verfahren und Schaltungsanordnung zur digitalen Frequenzkorrektur eines Signals Method and circuit arrangement for digital frequency correction of a signal |
| 04/19/2001 | DE19942768A1 Verfahren zur Übertragung von Signalisierungsinformationen, Sendestation, Mobilstation und Nachrichtenelemente Method for transmission of signaling information, broadcast station, mobile station, and message elements |
| 04/19/2001 | CA2825703A1 Method and apparatus for eliminating the effects of frequency offsets in a digital communication system |
| 04/18/2001 | EP1093268A2 OFDM receiving apparatus |
| 04/18/2001 | EP1093267A1 Frequency correction at reception in a packet transmission system |
| 04/18/2001 | EP1093248A1 Symbol synchronisation in a DMT system with crosstalk interference |
| 04/18/2001 | EP1093239A1 Method and apparatus for quality evaluation of cable circuit |
| 04/18/2001 | EP1093123A1 Information record disc and information recording apparatus |
| 04/18/2001 | EP1092305A1 Verfahren und vorrichtung zum senden von informationssymbolen mittels einer mehrzahl von tragern und verfahren und vorrichtung zum empfangen von informationssymbolen |
| 04/18/2001 | EP1092303A1 Nyquist filter and method |
| 04/18/2001 | EP1092289A1 Method, apparatus, and system for determing a location of a frequency synchronization signal |
| 04/18/2001 | EP1092279A1 Power control in a multi-carrier radio transmitter |
| 04/18/2001 | CN1292191A Receiving system for OFDM |
| 04/18/2001 | CN1292190A Demodulator of receiver |
| 04/18/2001 | CN1292189A Method and circuit for demodulation |
| 04/18/2001 | CN1292172A Method and aparatus for downconverting signals transmitted using plurality of modulation formats to common intermediate frequency range |
| 04/18/2001 | CN1291827A Demodulating method capable of maintaining specular purity |
| 04/18/2001 | CN1064800C Variable rate signal transmission method and apparatus in spread spectrum communication system using coding |
| 04/18/2001 | CN1064794C Multiple access up converter/modulator and method |
| 04/18/2001 | CN1064771C Device and method for discriminating between stationary and non-stationary signals |
| 04/17/2001 | USRE37138 Log-polar signal processing |
| 04/17/2001 | US6219534 Radio communication apparatus |
| 04/17/2001 | US6219388 Digital data demodulating device for estimating channel impulse response |
| 04/17/2001 | US6219385 Digital AM/FM positioning system (DAFPS)—an international positioning system |
| 04/17/2001 | US6219379 VSB receiver with complex equalization for improved multipath performance |
| 04/17/2001 | US6219378 Digital subscriber line modem initialization |
| 04/17/2001 | US6219377 Method and apparatus for generating tones in a multi-tone modem |
| 04/17/2001 | US6219374 Structure of a coherent dual channel QPSK transceiver using pilot symbols in a code division multiple access system |
| 04/17/2001 | US6219334 Receiving apparatus for receiving orthogonal frequency division multiplexing signal and receiving method thereof |
| 04/17/2001 | US6219333 Method and apparatus for synchronizing a carrier frequency of an orthogonal frequency division multiplexing transmission system |
| 04/17/2001 | US6219088 NTSC interference rejection filter |
| 04/17/2001 | US6218896 Vectored demodulation and frequency estimation apparatus and method |
| 04/17/2001 | CA2217429C Techniques for simultaneous communications of analog frequency-modulated and digital modulated signals using postcanceling scheme |
| 04/17/2001 | CA2211215C Digital transmission system |
| 04/12/2001 | WO2001026318A2 Demodulator circuit for demapping a multi-carrier signal using channel state information |
| 04/12/2001 | WO2001026317A1 Method for determining the amplitude imbalance at the receiving end and quadrature error in a multi-carrier system |
| 04/12/2001 | WO2001026316A1 Demodulator for processing digital signal |
| 04/12/2001 | WO2001026315A1 Method and circuit for acquisition |
| 04/12/2001 | WO2001026275A1 Method and apparatus for communicating a call |
| 04/12/2001 | WO2001026268A1 Communication method and communication device |
| 04/12/2001 | WO2001026264A1 Transmitter, receiver, and transmitting method in multi-carrier transmission system |
| 04/12/2001 | WO2001026242A1 Device and method for processing a digital data signal in a cdma radio transmitter |
| 04/12/2001 | WO2001026241A1 Signal identification in cdma-radio systems |
| 04/12/2001 | WO2001026224A1 A simplified digital fir filter for direct sequence spread spectrum communication systems |
| 04/12/2001 | US20010000221 Method and apparatus for detecting zero rate frames in a communications system |
| 04/12/2001 | US20010000220 Methods and device for estimating and correcting clipping in a discrete multi-tone communications system |
| 04/12/2001 | DE19948383A1 Verfahren zum empfangsseitigen Bestimmen der Nutzdatenkonstellation eines nach dem DVB-T-Standard modulierten Multiträger-Signals für die Berechnung der Restträgerleistung bzw. Verbesserung der Demodulation A method for determining the reception side Nutzdatenkonstellation a modulated according to the DVB-T standard multi-carrier signal for the calculation of the residual carrier power or improve demodulation |
| 04/12/2001 | DE19947114A1 High bit-rate digital signal transmission |
| 04/12/2001 | DE19944558A1 Verfahren zum Senden von Funksignalen und Sender zum Versenden von Funksignalen A method of transmitting radio signals and transmitter for sending radio signals |
| 04/12/2001 | DE19943197A1 Verfahren und Einrichtung zur Phasenregelung eines Lokaloszillators in einen kohärent-optischen PSK(Phase Shift Keying)-Homodyn-Empfänger Method and apparatus for phase control of a local oscillator in a coherent-optical PSK (Phase Shift Keying) -Homodyn receiver |
| 04/12/2001 | DE19939093A1 Modulator-Demodulator Modulator-demodulator |
| 04/12/2001 | CA2350203A1 Method of and device for communication |
| 04/11/2001 | EP1091579A2 Trellis demapper for Trellis decoder |
| 04/11/2001 | EP1091516A1 Base station device and method of suppressing peak current |
| 04/11/2001 | EP1091483A2 Quadrature signal generation system |
| 04/11/2001 | EP1090490A1 Multicarrier communication with variable overhead rate |
| 04/11/2001 | EP1090489A1 Method for transmitting digital data via a transmission channel subject to perturbations occurring in bursts |
| 04/11/2001 | EP1090474A2 Digital demodulator in a multi-carrier system |
| 04/11/2001 | EP1090463A1 Spread spectrum handshake for digital subscriber line telecommunications systems |
| 04/11/2001 | EP1090461A1 Method and apparatus for d.c. offset correction in digital-to-analog converters |
| 04/11/2001 | EP1062444A4 Improved flexible wedge gate valve |
| 04/11/2001 | EP0734614B1 Narrow band, arbitrary hf modulation and noise generator |
| 04/11/2001 | EP0724802A4 Non-complex dual-correlation phase reversal detector and method |
| 04/11/2001 | CN1291397A Reduction of crest factor in OFDM signal |
| 04/11/2001 | CN1291381A Decoder having a gain controller in a mobile communication system |
| 04/11/2001 | CN1291379A Interleaving/deinter leaving device and method for communication system |
| 04/11/2001 | CN1291039A Method for transmitting high bit rate digit signal |
| 04/11/2001 | CN1064496C Digital intermediate frequency enlarge-releaseing method and apparatus thereof |
| 04/11/2001 | CN1064494C Rake receiver combining all the useful multipath components of a spread spectrum signal |
| 04/10/2001 | US6216093 Method and apparatus for communication with chaotic and other waveforms |
| 04/10/2001 | US6216019 Remote wireless unit having reduced power operating mode |