Patents for H04B 14 - Transmission systems not characterised by the medium used for transmission (7,274) |
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06/14/1995 | EP0658007A1 Circuit for the analog-digital conversion of IF-signals |
06/14/1995 | EP0657999A1 Sampling frequency conversion |
06/14/1995 | EP0657873A2 Speech signal bandwidth compression and expansion apparatus, and bandwidth compressing speech signal transmission method, and reproducing method |
06/13/1995 | US5425082 Communication processing apparatus, communication processing system, and communication processing method |
06/13/1995 | US5424739 Device and method for digitally shaping the quantization noise of an N-bit digital signal, such as for digital-to-analog conversion |
06/13/1995 | CA2048457C Hands free telephone set |
06/07/1995 | EP0656697A2 Method and apparatus for creating fast fading at a receiver using orthogonally polarized antennas and transmitter time diversity |
06/07/1995 | EP0531455A4 Method and apparatus for encoding and decoding using wavelet-packets |
06/06/1995 | US5423073 Acoustic signal transmitting system |
06/01/1995 | DE4437790A1 Channel modulation process for finite state machine with error correction and entropy coding |
05/31/1995 | EP0655868A1 Device for encoding a video signal |
05/31/1995 | EP0573409B1 Interpolative analog/digital converter for band-pass signals |
05/30/1995 | US5420892 Stabilized noise shaper of a small scale having a suppressed quantization noise in high frequency region without deteriorating S/N ratio |
05/24/1995 | EP0654194A1 A speech decoding method and a speech decoder |
05/23/1995 | US5418821 Method and apparatus for sample-data receiver squelch |
05/23/1995 | US5418571 Decoding of double layer video signals with interpolation replacement on missing data from enhancement layer |
05/23/1995 | US5418531 Structured quantizer for sources with memory |
05/18/1995 | WO1995013660A1 Quantization apparatus, quantization method, high efficiency encoder, high efficiency encoding method, decoder, high efficiency encoder and recording media |
05/17/1995 | EP0653125A1 Data compression system using source representation |
05/17/1995 | EP0653091A1 Discriminating between stationary and non-stationary signals |
05/17/1995 | CN1102756A A method for repeaters to adaptively digitally code received analog information |
05/16/1995 | US5416525 Method and apparatus for digitally coding and decoding a composite signal, containing baseband and out-of-band signals using relatively few bits and yielding a decoded out-of-band signal having increased quality |
05/16/1995 | US5416483 Method and circuit for noise shaping |
05/11/1995 | WO1995012943A1 Method and apparatus for the transmission of variable rate digital data |
05/11/1995 | WO1995012939A1 Pulse position modulation with spread spectrum |
05/04/1995 | WO1995012254A1 Transmission and reception of a first and a second main signal component |
05/03/1995 | EP0650614A1 Digital signal processor architecture |
05/02/1995 | US5412642 Method of absorbing delay fluctuation in cell transmission system and exchange utilizing the method |
04/26/1995 | EP0650286A2 Ringdown and ringback signalling for a computer-based multifunction personal communications system |
04/26/1995 | EP0650281A1 Adaptive precoding and preemphasis for trellis coded modulation systems |
04/26/1995 | EP0650265A2 Structured quantizer for sources with memory |
04/26/1995 | EP0650261A1 Bandpass sigma-delta analog-to-digital converter (adc), method therefor, and receiver using same |
04/26/1995 | EP0649558A1 Transmission system comprising at least a coder |
04/26/1995 | EP0649557A1 Transmission system comprising at least a coder |
04/25/1995 | US5410308 System for processing a digital signal including auxiliary data to facilitate data reconstitution at a decoder |
04/23/1995 | CA2130538A1 Method and apparatus for adaptively providing precoding and preemphasis conditioning to signal data for transfer over a communication channel |
04/20/1995 | WO1995010890A1 Transmission system implementing different coding principles |
04/20/1995 | WO1995010885A1 Pulse code bit cell demodulation |
04/20/1995 | DE4335305A1 Method and circuit arrangement for transmitting voice signals |
04/18/1995 | US5408583 Sound outputting devices using digital displacement data for a PWM sound signal |
04/18/1995 | CA2053890C Time domain radio transmission system |
04/13/1995 | WO1995008241A3 Apparatus for and method of speech digitizing |
04/12/1995 | EP0648024A1 Audio coder using best fit reference envelope |
04/11/1995 | US5406583 Modem with received signals and transmitted signals comprising signal sets |
04/11/1995 | CA2026207C Low time-delay transform coder, decoder, and encoder/decoder for high-quality audio |
04/06/1995 | DE4405659C1 Method for the cascaded coding and decoding of audio data |
04/06/1995 | DE4333358A1 Schaltungsanordnung zur Informationsübertragung auf einer Zweidrahtleitung Circuitry for transmitting information on a two-wire line |
04/04/1995 | CA2026213C Low bit rate transform coder, decoder and encoder/decoder for high-quality audio |
03/30/1995 | WO1995008877A1 Transcoding and transdecoding unit, and method for adjusting the output thereof |
03/30/1995 | DE4332735A1 Verfahren zur digitalen Erzeugung eines komplexen Basisbandsignals A method for digitally generating a complex baseband signal |
03/29/1995 | EP0645900A2 Method and apparatus for data transmission by means of circular polarized waves |
03/29/1995 | EP0645896A2 Method for duplex data transmission between a beacon and a vehicle |
03/29/1995 | EP0645755A1 Speech coding apparatus and method using classification rules |
03/29/1995 | CN1100859A Direct phase digitizing apparatus and method |
03/28/1995 | US5402248 Image encoding apparatus and method |
03/23/1995 | WO1995008241A2 Apparatus for and method of speech digitizing |
03/23/1995 | WO1995008152A1 Method and apparatus for detecting bad frames of information in a communication system |
03/23/1995 | CA2149214A1 Apparatus for and method of speech digitizing |
03/23/1995 | CA2147497A1 Method and apparatus for detecting bad frames of information in a communication system |
03/22/1995 | EP0643886A1 Dynamic loader. |
03/21/1995 | US5400433 Decoder for variable-number of channel presentation of multidimensional sound fields |
03/21/1995 | US5400371 System and method for filtering random noise using data compression |
03/21/1995 | US5400024 Digital signal processing apparatus for converting a digital signal from one transmission rate to another transmission rate |
03/21/1995 | US5400022 Pulse code bit cell demodulation |
03/15/1995 | EP0643512A1 Apparatus for the detection of the loss of frame synchronisation for multidimensional modulations |
03/15/1995 | EP0643477A2 Demodulation of an IF-signal by a sigma-delta converter |
03/15/1995 | EP0643380A2 Speech speed conversion method and apparatus |
03/14/1995 | US5398029 Sampling rate converter |
03/11/1995 | CA2131730A1 Speech speed conversion method and speech speed conversion apparatus |
03/09/1995 | WO1995006984A1 Sub-band coder with differentially encoded scale factors |
03/09/1995 | DE4431998A1 Hearing aid system |
03/08/1995 | EP0642286A2 Mobile communication apparatus having recording/reproducing function |
03/08/1995 | EP0642129A1 Transmission system with reconstruction of missing signal samples |
03/08/1995 | EP0641503A1 A method for repeaters to adaptively digitally code received analog information |
03/07/1995 | US5396519 Method and apparatus for adaptively providing precoding and preemphasis conditioning to signal data for transfer over a communication channel |
03/07/1995 | US5396248 Noise shaping circuit |
03/07/1995 | US5396238 Data compressing and expanding apparatus for tone generation |
03/07/1995 | CA1334690C Speech coder with coded amplitudes multiplied by factors dependent on pulse position |
03/01/1995 | EP0524264B1 Adaptive-block-length, adaptive-transform, and adaptive-window transform coder and decoder for high-quality audio |
02/28/1995 | US5394473 Adaptive-block-length, adaptive-transforn, and adaptive-window transform coder, decoder, and encoder/decoder for high-quality audio |
02/28/1995 | US5394437 High-speed modem synchronized to a remote CODEC |
02/22/1995 | EP0639913A1 Apparatus for resolving phase ambiguities in a DPSK radio link |
02/21/1995 | US5392044 Method and apparatus for digitizing a wide frequency bandwidth signal |
02/16/1995 | DE4326900A1 Method and device for establishing readiness to communicate |
02/15/1995 | EP0638859A2 Signal processing device |
02/14/1995 | US5390256 Dynamic loader |
02/08/1995 | EP0637892A2 System and method for transmitting images at high efficiency |
02/07/1995 | US5387910 Signal processor |
02/03/1995 | CA2129169A1 Transmission system with reconstruction of missing signal samples |
02/01/1995 | EP0636291A1 Coordinated coding for digital transmission |
01/31/1995 | US5386436 Synchronization system for use in digital transmission system |
01/26/1995 | WO1995002930A1 Computationally efficient adaptive bit allocation for coding method and apparatus |
01/26/1995 | WO1995002929A1 Computationally efficient adaptive bit allocation for encoding method and apparatus with allowance for decoder spectral distortions |
01/26/1995 | WO1995002928A1 Hybrid adaptive allocation for audio encoder and decoder |
01/24/1995 | US5384811 Method for the transmission of a signal |
01/24/1995 | US5384807 ADPCM transcoder with integral tone generation and method therefor |
01/24/1995 | US5384725 Method and apparatus for encoding and decoding using wavelet-packets |
01/24/1995 | US5384552 Clock recovery circuit for extracting clock information from a received baseband signal |
01/18/1995 | EP0634845A2 Noise burst detection in an ADPCM decoder |
01/18/1995 | EP0568532B1 Process for transmitting digitised, block-coded audio signals using scale factors |