| Patents for H04B 14 - Transmission systems not characterised by the medium used for transmission (7,274) |
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| 06/15/1983 | EP0081387A1 Apparatus for selectively compensating burst errors of variable length in successive data words |
| 06/08/1983 | EP0080782A1 Signal transmission system |
| 06/08/1983 | EP0080725A2 Method and apparatus for A/D conversion |
| 06/08/1983 | EP0080712A2 Sampling frequency converting apparatus |
| 05/25/1983 | EP0079658A1 Differential pulse code modulation transmission system |
| 05/24/1983 | US4385393 Adaptive prediction differential PCM-type transmission apparatus and process with shaping of the quantization noise |
| 05/24/1983 | US4385286 Use of single reference voltage for analog to digital or digital to analog conversion of bipolar signals |
| 05/18/1983 | EP0078884A2 Equalizer |
| 05/17/1983 | US4384364 Quadrature modulation arrangement with enhanced dynamic amplification range |
| 05/11/1983 | EP0078581A1 Differential PCM transmission system with adaptive prediction |
| 05/10/1983 | US4383316 Apparatus for and method of collating partitioned time disordered synchronous data streams |
| 05/04/1983 | EP0078195A1 Process and system for the differential coding and decoding of data, with limitation of the propagation of transmission errors |
| 05/03/1983 | US4382299 Disc record system employing signal redundancy |
| 04/26/1983 | US4381428 Adaptive quantizer for acoustic binary information transmission |
| 04/20/1983 | EP0077216A1 Radio system |
| 04/12/1983 | CA1144651A1 Echo detector particularly for speech interpolation communication systems |
| 04/06/1983 | EP0075852A2 Pulse code modulation system |
| 04/05/1983 | US4379286 Digital signal processing circuit |
| 03/29/1983 | US4378472 Two to four wire hybrid circuit arrangement for a pulse code modulated time multiplex telecommunication system |
| 03/16/1983 | EP0073979A1 System for the transmission of digital information signals |
| 03/15/1983 | EP0065515A4 Stable vortex generating device. |
| 03/15/1983 | EP0055287A4 Transform modulation system. |
| 03/01/1983 | US4375581 Digital transmission error reduction |
| 02/09/1983 | EP0071506A1 Digital method and device for the phase error correction of a sampled signal and its application to the correction of television signals |
| 02/09/1983 | EP0071505A1 Method and device for sampling a sinusoidal signal by a frequency-multiplied signal |
| 02/09/1983 | EP0070949A1 Transmission method for voice and digital data and arrangement for carrying out said method |
| 02/08/1983 | US4373154 Data encoding and/or decoding |
| 02/01/1983 | US4371972 Adaptive delta modulator |
| 02/01/1983 | US4371270 Block signal forming digital processor with error correction |
| 01/25/1983 | US4370643 Apparatus and method for compressively approximating an analog signal |
| 01/20/1983 | WO1983000231A1 Method for testing analog/digital converters and/or digital/analog converters or sections of information transmission circuits, comprising such converters or connected in series therewith, for communication apparatus, particularly for testing coders-decoders for pcm apparatus, as well as device for implemeting such method |
| 01/19/1983 | EP0070009A2 Method for converting PAM signals into PCM signals according to an approximated logarithmic characteristic |
| 01/18/1983 | US4369516 Self-clocking data transmission system |
| 01/18/1983 | US4369512 Digital transmission circuit using means for introducing a redundancy on the most significant bit |
| 01/18/1983 | CA1139860A1 Error correction in a digital signal transmission system |
| 01/12/1983 | EP0069398A1 Process for testing A/D and/or D/A converters or electric transmission networks comprising such converters or connected in series with said networks, particularly for testing codecs for PCM apparatuses, and device for the application of said process |
| 01/04/1983 | US4367456 PCM and PAM Conversion circuit including signal level variation on the PCM portion of the circuit |
| 01/04/1983 | US4367415 Pulse generator circuit |
| 12/28/1982 | US4366439 PCM Decoder |
| 12/23/1982 | WO1982004515A1 Bit synchronization adjuster |
| 12/15/1982 | EP0066947A1 Successive frame digital multiplexer with increased channel capacity |
| 12/14/1982 | CA1137638A1 Digital signal processor for use in recording and/or reproducing equipment |
| 12/14/1982 | CA1137636A1 (b a)-bit d/a converter with b-bit auxiliary d/a converter |
| 12/09/1982 | EP0054033A4 Interpolative encoder for subscriber line audio processing circuit apparatus. |
| 12/08/1982 | EP0066412A1 Method of processing analog signals |
| 12/07/1982 | US4363129 Method and means of minimizing simulcast distortion in a receiver when using a same-frequency repeater |
| 12/07/1982 | US4363127 Line signaling apparatus and techniques for digital data links |
| 12/07/1982 | US4363103 Device for following and estimating the local state of picture contours |
| 12/07/1982 | CA1137226A1 Encoder/decoder system employing pulse code modulation |
| 12/01/1982 | EP0065515A1 Stable vortex generating device. |
| 11/30/1982 | US4361893 Transmission system using differential pulse code modulation |
| 11/24/1982 | EP0065444A1 System for the reconstruction by filtering of an analogue signal from a pseudoanalogue signal obtained by double analogue/digital, digital/analogue conversion of said analogue signals with a possible processing of the digital signal |
| 11/23/1982 | US4360713 Echo detector particularly for speech interpolation communication systems |
| 11/17/1982 | EP0064791A1 Method of transmitting an audio signal via a transmission channel |
| 11/10/1982 | EP0064119A2 Speech coding methods and apparatus for carrying out the method |
| 11/02/1982 | US4357674 PCM Signal calculator |
| 11/02/1982 | CA1134915A1 Noise assessment of pcm regenerators |
| 10/26/1982 | US4356564 Digital signal transmission system with encoding and decoding sections for correcting errors by parity signals transmitted with digital information signals |
| 10/26/1982 | US4356518 High frequency digital PCM decoding apparatus |
| 10/19/1982 | US4355367 Waveform synthesizer arrangement |
| 10/19/1982 | US4355304 Digital compandor |
| 10/19/1982 | CA1134044A1 Delta modulation detector |
| 10/05/1982 | US4353129 Digital data transmission system |
| 10/05/1982 | CA1133142A1 Digital compandor having nonlinear companding characteristic |
| 09/28/1982 | CA1132711A1 Pcm codec using common d/a converter for encoding and decoding |
| 09/22/1982 | EP0060583A1 System for the quantization of signals |
| 09/21/1982 | CA1132264A1 Conversion of analogue signals to digital signals |
| 09/21/1982 | CA1132256A1 Video player-recorder with non-linear mark length modulation |
| 09/15/1982 | EP0060095A2 Shuffling digital data |
| 09/14/1982 | US4349913 Method and apparatus for reducing the demand on the number of transferred bits when transferring PCM information |
| 09/08/1982 | EP0059294A1 Transmission methods and apparatus for implementing the method |
| 09/08/1982 | EP0059257A1 Analog signal coding method |
| 09/07/1982 | US4348768 PCM Codec using common D/A converter for encoding and decoding |
| 09/07/1982 | US4348659 Method and apparatus for encoding a digital signal to have minimal DC component |
| 09/07/1982 | CA1131363A1 Pcm signal transmitting system |
| 09/01/1982 | EP0058982A1 Digital device for discriminating between digitized speech signals and data signals |
| 09/01/1982 | EP0058764A2 Duplex fibre-optic information transmission system |
| 08/24/1982 | US4346478 Fiber optical sensor system, preferably for measuring physical parameters |
| 08/24/1982 | US4346476 A/D, D/A Converter for PCM transmission system |
| 08/03/1982 | CA1129104A1 INTERPOLATIVE PCM DECODER UTILIZED FOR .mu.-LAW AND A-LAW |
| 07/28/1982 | EP0056402A1 Adaptive reconstruction of information signals in a plural channel system. |
| 07/27/1982 | CA1128662A1 Signal coding for compressed pulse code modulation system |
| 07/20/1982 | US4340940 Hardware reduction by truncation of selected number of most significant bits for digital video system using subsampling and adaptive reconstruction |
| 07/07/1982 | EP0055287A1 Transform modulation system |
| 07/06/1982 | US4338589 Autocalibration of compressed A/D converter |
| 07/06/1982 | CA1127311A1 Idle channel noise suppressor for speech encoders |
| 07/06/1982 | CA1127310A1 Quantizing process with dynamic allocation of the available bit resources and device for implementing said process |
| 07/06/1982 | CA1127309A1 Optimized digital delta modulation compander having truncation effect error recovery |
| 06/23/1982 | EP0054033A1 Interpolative encoder for subscriber line audio processing circuit apparatus. |
| 06/16/1982 | EP0053790A1 Fiber optical sensor system, preferably for measuring physical parameters |
| 06/15/1982 | US4335470 Audio de-emphasis circuit |
| 06/15/1982 | CA1125917A1 Digital transmission system with a double analog integrator delta sigma coder and a double digital integrator delta sigma decoder |
| 06/09/1982 | EP0053505A2 Pulse code modulated signal processing apparatus |
| 06/09/1982 | EP0053474A1 Pulse code modulated signal processing apparatus |
| 06/09/1982 | EP0053391A1 Fiber optical sensor system, preferably for use in automobile equipment |
| 06/09/1982 | EP0053243A1 Digital differential modulation and demodulation system with sampling frequency depending on the analog signal |
| 06/08/1982 | US4334237 Adaptive amplitude averaging for weighting quantizing noise |
| 06/02/1982 | EP0053064A1 Digital transmission system with adaptive coding of sampled and orthogonally transformed analogue information |
| 05/27/1982 | WO1982001669A1 Stable vortex generating device |
| 05/18/1982 | CA1123917A1 Telemetry system for transmitting analog data over a telephone line |