| Patents for H04L 27 - Modulated-carrier systems (89,721) |
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| 07/29/1994 | CA2114384A1 Quadrature signal generation circuit |
| 07/27/1994 | EP0608079A2 System for prevention of erroneous detection of synchronization in a data transmission system with forward error correction |
| 07/27/1994 | EP0608024A1 Transmissionsystem with clock recovery |
| 07/27/1994 | EP0607789A1 Circuit for generating an output signal exponentially depending on the input signal |
| 07/27/1994 | EP0607496A1 One bit differential detector for GMSK with frequency offset compensation |
| 07/27/1994 | CN1090114A Multiple qam digital television signal encoder |
| 07/26/1994 | US5333191 Detection of multifrequency tone signals |
| 07/26/1994 | US5333151 High speed frequency-shift keying decoder |
| 07/26/1994 | US5333150 Demodulation and synchronization method and system for digitally modulated signals |
| 07/26/1994 | US5333149 Process and a circuit for adapting coefficients in a modem equalizer |
| 07/26/1994 | US5333148 Data receiver |
| 07/23/1994 | WO1994017618A1 Instantaneous phase sensitive detector and generator for clock reproducing signal installed in delay detector |
| 07/23/1994 | CA2235945A1 Instantaneous phase detecting circuit and clock recovery signal generating circuit incorporated in differential demodulator |
| 07/21/1994 | WO1994016513A1 Code division multiple access (cdma) inbound messaging system utilizing re-use of sequences |
| 07/21/1994 | WO1994016512A1 Digital demodulator with frequency and timing control |
| 07/21/1994 | WO1994016505A2 Psk demodulator |
| 07/21/1994 | CA2113766A1 Transmission system comprising timing recovery |
| 07/20/1994 | EP0607063A1 Phase error correction apparatus for PSK signals transmitted in packets |
| 07/20/1994 | EP0606941A1 Apparatus for the synchronisation of a local carrier in OFDM systems |
| 07/20/1994 | EP0439539B1 Transmitter, transmission method and receiver |
| 07/20/1994 | EP0383908B1 Mechanism for deriving accurate frequency reference for satellite communications burst demodulator |
| 07/19/1994 | US5331672 Automatic detector and selector of RS-232 or V.35 interface |
| 07/19/1994 | US5331670 Synchronization scheme for a digital communications system |
| 07/19/1994 | US5331662 Adaptive equalization method reducing intersymbol interference, receive device implementing it and application thereof |
| 07/19/1994 | US5331136 Hand-held data capture system with interchangeable modules |
| 07/13/1994 | EP0606163A2 Delay demodulator for burst-mode PSK-signals |
| 07/13/1994 | CN1089415A 无线电系统 Radio Systems |
| 07/12/1994 | US5329554 Digital pulse detector |
| 07/12/1994 | US5329552 Method of binary encoding the points of a constellation used in a multicarrier modulation of OFDM type |
| 07/12/1994 | US5329551 Overlapped multilevel codes |
| 07/12/1994 | US5329259 Efficient amplitude/phase modulation amplifier |
| 07/12/1994 | US5329258 Multilevel FSK modulator having phase locked loop with controlled transient response |
| 07/12/1994 | US5329242 Method and apparatus for signal demodulation using time-intervals |
| 07/12/1994 | CA2003207C Relay receiver |
| 07/07/1994 | WO1994015427A1 Method and apparatus of adaptive maximum likelihood sequence estimation using filtered correlation synchronization |
| 07/07/1994 | WO1994011960A3 Mobile two-way communication system |
| 07/07/1994 | DE4344811A1 Gittercodierte Modulationsvorrichtung Lattice-coded modulation device |
| 07/06/1994 | EP0605188A2 Symbol and frame synchronization for a TDMA system |
| 07/06/1994 | EP0605107A2 Method of excho amplitude reduction in modem communications |
| 07/06/1994 | EP0605102A1 A method of multipath propagation copensation |
| 07/06/1994 | EP0604956A2 Decision feedback equalizer with adaptive filter array operating as feedforward filter of the equalizer |
| 07/06/1994 | CN1025399C Amplifier for limiter |
| 07/05/1994 | US5327462 Digital type VSB modulation apparatus |
| 07/05/1994 | US5327093 Method and system for synchronizing mutually interfering signals in digital radio transmissions with frequency re-use |
| 06/30/1994 | DE4337894A1 Information encoding and transmission using multistage combination |
| 06/29/1994 | EP0604381A2 FSK modulator using a non-integral number of samples per symbol period |
| 06/29/1994 | EP0604209A2 Maximum likelihood data detector |
| 06/29/1994 | EP0603794A1 Method and circuit for calculating the reciprocal of the amplitude of a vector |
| 06/29/1994 | EP0603373A1 Improved trellis coding technique to increase adjacent channel interference protection ratio in land mobile radio systems under peak power constraints |
| 06/28/1994 | US5325427 Apparatus and robust method for detecting tones |
| 06/28/1994 | US5325401 L-band tuner with quadrature downconverter for PSK data applications |
| 06/28/1994 | US5325396 Digital synthesizer |
| 06/28/1994 | US5325075 Method and circuit arrangement to generate a phase modulated or frequency modulated signal |
| 06/23/1994 | WO1994014260A1 Communications using synchronized chaotic systems |
| 06/23/1994 | CA2111785A1 Fractional sample/symbol time modulator |
| 06/22/1994 | EP0602898A1 Method and apparatus for synchronizing transmission of modem |
| 06/22/1994 | EP0602520A2 Method of recognizing the modulation types A3E, J3E, and F3E, and device for carrying out the method |
| 06/22/1994 | EP0602279A1 Limiting amplifier for PSK receiver |
| 06/22/1994 | CN1088376A 多模式信号处理 Multi-mode signal processing |
| 06/22/1994 | CN1088372A Modem-channel bank converter |
| 06/21/1994 | US5323425 Direct conversion receiver for digital signals and method for demodulation of said signals |
| 06/21/1994 | US5323424 Multistage decoder |
| 06/21/1994 | US5323421 Method and apparatus of estimating channel quality in a receiver |
| 06/21/1994 | US5323125 Frequency agile method for transmitting multi-level data |
| 06/21/1994 | US5323104 Method and arrangement for demodulating a frequency modulated signal |
| 06/16/1994 | DE4306881C1 QAM receiver with quadrature error correction - uses gradients of detected in=phase and quadrature decision errors |
| 06/16/1994 | DE4306880C1 QAM receiver with quadrature error correction - uses decision error for in=phase and quadrature components to calculate error correction value |
| 06/15/1994 | EP0601855A2 Adaptive equalizer capable of compensating for carrier frequency offset |
| 06/15/1994 | EP0601605A2 Clock recovery circuit of a demodulator |
| 06/15/1994 | CA2102465A1 Method for transferring information using modems |
| 06/14/1994 | US5321799 Signalling transition control in a modulated-signal communications system |
| 06/14/1994 | US5321745 Adaptive efficient single/dual tone decoder apparatus and method for identifying call-progression signals |
| 06/14/1994 | US5321726 Calibration of vector demodulator using statistical analysis |
| 06/14/1994 | US5321725 Method and apparatus for communicating digital information such as compressed video using treillis coded QAM |
| 06/14/1994 | US5321722 Multipoint connected communication system having function of retraining modems provided therein and method of retraining the modems |
| 06/14/1994 | US5321514 Interactive television and data transmission system |
| 06/09/1994 | WO1994013085A1 Wireless direct sequence spread spectrum digital cellular telephone system |
| 06/09/1994 | WO1994013084A1 High speed fsk demodulator |
| 06/09/1994 | WO1994013071A1 Method and receiver for terrestrial digital radio transmission |
| 06/09/1994 | WO1994013066A1 Dot product circuit for multipath receivers |
| 06/09/1994 | WO1994012571A2 Mixtures of unsaturated carboxylic acid polymerizates and use |
| 06/09/1994 | CA2149746A1 Mixtures of unsaturated carboxylic acid polymerizates and use |
| 06/08/1994 | EP0600547A1 Sub-band diversity transmission system |
| 06/08/1994 | EP0600193A2 Method for broadcasting digital data, especially towards mobile stations, with a high bit rate, with time-frequency interweaving and analogous synchronisation |
| 06/07/1994 | US5319676 Digital pre-modulation filter |
| 06/07/1994 | US5319675 Quadrature modulation circuit |
| 06/07/1994 | US5319674 Method for self-training adaptive equalization |
| 06/07/1994 | US5319673 Radio frequency broadcasting systems and methods using two low-cost geosynchronous satellites |
| 06/07/1994 | US5319650 Modulator-demodulator device capable of detecting an unsynchronized frame state |
| 06/07/1994 | CA2033301C Modulation device with input signal modification for correction of amplifier nonlinearities |
| 06/01/1994 | EP0599703A1 Use of 4-hydroxy- or 4-aminobenzumidazol or their derivatives as coupler agent in oxidative dye compositions, the compositions and its method of application |
| 06/01/1994 | EP0599665A2 Detecting circuit and detection method |
| 06/01/1994 | EP0599500A2 Frequency diversity transmitter and receiver |
| 06/01/1994 | EP0599300A1 Frequency error detecting device capable of correctly detecting a frequency error between a carrier frequency and a standard frequency |
| 06/01/1994 | EP0598745A1 Modem |
| 06/01/1994 | EP0524947B1 Circuit arrangement for a tank circuit of a high frequency transmitter output stage operated with frequency shift keying |
| 06/01/1994 | DE4240226A1 Digital transmission of hierarchical HDTV, EDTV and SDTV TV signals - converting analogue picture and sound signals to digital and removing redundancy in source coder |
| 05/31/1994 | US5317602 Base-band delayed detector with synchronizing circuit |
| 05/31/1994 | US5317600 Coarse tuning of the channel frequency |
| 05/31/1994 | US5317598 Portable test receiver for remote monitoring system |