Patents
Patents for H03M 7 - Conversion of a code where information is represented by a given sequence or number of digits to a code where the same information is represented by a different sequence or number of digits (33,242)
03/1991
03/07/1991DE4022396A1 Matching ADC output to computing system input - converts binary ADC output signal into two's complement form with doubled resolution
03/07/1991DE3928676A1 Schaltung zur erkennung eines nutzsignals in einem binaeren signal Circuit for detecting a useful signal in a binary signal
03/06/1991WO1991003880A1 Improved data compression apparatus
03/06/1991EP0415675A2 Constrained-stochastic-excitation coding
02/1991
02/28/1991DE3924927A1 Dual code converter circuit - has two decadic branch circuits in input section, and one such circuit in output section
02/28/1991DE3923348A1 Electronic code converter circuit - has decadic branch circuit in output stage, without correction circuit for adding correction digit of 6.
02/28/1991DE3922786A1 Code conversion circuit for binary digits - has single decadic branch circuit in input stage
02/28/1991DE3920502A1 Electronic code conversion circuit for digital prods. - has no correction circuit and no branch circuit in output stage
02/27/1991EP0414368A2 Method and apparatus for data and forward error correction coding for low DC-offset and short run length
02/27/1991EP0414193A2 Adaptive quantization coder/decoder
02/27/1991EP0414113A2 Method for movement compensation in a moving-image encoder or decoder
02/27/1991EP0216813B1 Data transmission
02/27/1991CN1049580A Data and forward error control coding techniques for digital signals
02/26/1991US4996527 Pipelined residue to mixed base converter and base extension processor
02/24/1991WO1991003128A1 Control system for encoding image
02/20/1991EP0413570A2 Picture data compression
02/20/1991EP0413076A1 Data coding for fast start-up of PRML receivers
02/20/1991EP0413017A1 Process and device for compressing data designed for the compatible decoding of a group of television signals with an increasing degree of resolution.
02/20/1991CN1049431A Coding program-controlled circuit
02/19/1991US4995036 Multichannel data compressor
02/12/1991US4992954 Method of storing character patterns and character pattern utilization system
02/10/1991WO1991002412A1 Apparatus for run and string data compression
02/06/1991EP0412047A1 Method and system for arithmetic coding and decoding
02/06/1991EP0411692A2 Last-in first-out memory and data repacker for use therein
02/06/1991EP0411675A2 Interframe coding apparatus
02/06/1991EP0411655A2 Vector quantization encoder and vector quantization decoder
02/06/1991EP0411504A2 Digital signal processing circuit
02/06/1991EP0411264A2 Compression method
02/05/1991US4991214 Speech coding using sparse vector codebook and cyclic shift techniques
02/05/1991US4990910 Variable length code conversion system
01/1991
01/30/1991EP0410060A2 Entropy encoder/decoder including a context extractor
01/30/1991EP0242258B1 Device for the execution of an algorithm (leroux-gueguen) for the coding of a signal by linear prediction
01/30/1991CN1011459B Method of and circuit arrangement for bitrute reduction
01/30/1991CN1011455B Bandwidth limiting ciruit with variable bandwidth
01/29/1991US4989264 Bandwidth limiting circuit with variable bandwidth
01/29/1991US4989246 Adaptive differential, pulse code modulation sound generator
01/29/1991US4989000 Data string compression using arithmetic encoding with simplified probability subinterval estimation
01/29/1991US4988998 Data compression system for successively applying at least two data compression methods to an input data stream
01/23/1991EP0409248A2 Signal encoding apparatus
01/23/1991EP0409239A2 Speech coding/decoding method
01/23/1991EP0397686A4 Apparatus for efficiently packing data in a buffer
01/23/1991EP0145788B1 Method and apparatus for transmitting digital signal
01/22/1991CA1279405C Data compression using block list transform
01/18/1991CA2021072A1 Data and forward error control coding techniques for digital signals
01/17/1991DE3922787A1 Multiplier circuit containing dual multiplier and code converter - has only one correction circuit and partial direct result circuit in input stage
01/17/1991DE3920897A1 Binary coded decimal circuit displaying up to 81 - uses only two full full adder circuits, three half adders and common gate circuit
01/15/1991US4985923 High efficiency voice coding system
01/15/1991US4985866 Compound semiconductor memory device having redundant circuit configuration
01/15/1991US4985701 Time-division bit number conversion circuit
01/15/1991US4985700 Variable-length coding/decoding device
01/10/1991WO1991000652A1 Process and device for coding a sequence of elements
01/10/1991WO1990013182A3 Digital coding process
01/09/1991EP0406508A1 Device for reducing the redundancy in blocks of digital video data in DCT encoding
01/09/1991EP0406507A1 Block coding scheme for fractional-bit transmission
01/09/1991CN1048461A Recording and reproducing device
01/08/1991US4983966 High-speed universal scaler
01/08/1991CA1278867C Method of and a device for digital signal coding by vector quantization
01/02/1991EP0405885A1 Recording device and reproducing device
01/02/1991EP0405836A2 Data encoding and demodulation system
01/02/1991EP0405824A2 Decoding apparatus for digital signals
01/02/1991EP0405591A2 Varaible length block coding with changing characteristics of input samples
01/02/1991EP0405584A2 Gain-shape vector quantization apparatus
01/02/1991EP0405572A2 Voice coding/decoding system
01/01/1991US4982285 Apparatus for adaptive inter-frame predictive encoding of video signal
12/1990
12/28/1990CA2016957A1 Data encoding and demodulation system
12/27/1990EP0404535A2 Bandwidth compression device
12/27/1990CA2019079A1 Decoding apparatus for digital signal
12/19/1990EP0403154A2 Vector quantizer search arrangement
12/19/1990EP0403000A1 Television signal encoding
12/19/1990EP0402742A2 Noise shaping requantization circuit
12/18/1990US4979187 Predictive coding device
12/18/1990US4979039 For data compression of a signal represented by binary signal vectors
12/18/1990CA1278096C High efficiency coding apparatus
12/13/1990WO1990015505A1 Frame-to-frame compression of vector quantized signals and other post-processing
12/13/1990WO1990015485A1 Nearest neighbor search algorithm and its application to vector quantization
12/13/1990DE3919171A1 Dual-8421-code change circuit - has extra branch circuit for digit 10 branching already in input region when a value 4 appears twice
12/12/1990EP0402149A2 Coding device
12/12/1990EP0402058A2 Predictive decoding device correcting code errors
12/12/1990EP0402016A2 Encoding/decoding in the decomposition and recomposition of a high resolution image
12/12/1990EP0152473B1 facsimile device for run length coding
12/12/1990CN1010825B Method and apparatus for channelized serial transmission of redundantly encoded binary data
12/11/1990CA1277786C Optical signal processing
12/05/1990EP0400913A2 Adaptive probability estimator for entropy encoding/decoding
12/05/1990EP0400755A1 Digital transmission system using subband coding of a digital signal
12/05/1990EP0400729A2 Improved circuit for performing the S-transform
12/05/1990EP0400551A2 Coded transmission system with initializing sequence
12/05/1990EP0400473A2 Digital signal processing apparatus
12/05/1990EP0400222A1 Digital transmission system using subband coding of a digital signal
12/04/1990US4975698 For use in an analog-to-digital converter
11/1990
11/29/1990WO1990014719A1 Process for transmitting a signal
11/29/1990DE3909044A1 Multiplication circuit
11/28/1990EP0399487A2 Transformation coding device
11/27/1990US4974235 Method of adaptive quantization in differential pulse code modulation and a system for transmitting quantized data
11/27/1990US4974078 Digital compression method and system with improved coding efficiency
11/27/1990US4973973 Code converter and encoder for converting a unipolar binary coded signal into a bipolar binary coded signal
11/27/1990US4973961 Method and apparatus for carry-over control in arithmetic entropy coding
11/22/1990EP0397686A1 Apparatus for efficiently packing data in a buffer.
11/20/1990US4972484 Method of transmitting or storing masked sub-band coded audio signals
11/20/1990US4972483 Speech processing system using adaptive vector quantization
11/20/1990US4972380 Decoding circuit for functional block