- H03M7/001： .{以所用的元件为特征的}
- H03M7/02： .转换到加权代码或相反转换,即对一数字的加权与该数字在信息组或代码字中的位置有关{(布斯编码器入G06F7/52C2D1,G06F7/52C2D2A)}
- H03M7/14： .转换到非加权代码或相反转换
- H03M7/26： .转换到随机码或相反转换
- H03M7/28： .可编程序结构,即代码转换器所包括的设备其算符是可变的,以调整转换程序
- H03M7/30： .压缩(用于减少冗余的语言分析-合成入G10L19/00;用于图像通信的入H04N);扩展;消除不需要的数据,例如减少冗余{(用于数据获得的入G06F17/40;用于图像数据处理的入 G06T9/00;在数据记录中减少冗余的入G11B20/14;用于传输的入H04B1/66)}
| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 141 | Differential unary coding for digital audio signals | EP99401816.6 | 1999-07-19 | EP1071218B1 | 2009-09-09 | Thomas, David R. |
| 142 | Semiconductor device with circuitry for efficient information exchange | EP05026497.7 | 2001-12-10 | EP1643652A3 | 2009-07-08 | Matsuzaki, Yasurou, Fujitsu Limited; Taguchi, Masao, Fujitsu Limited |
A semiconductor device having a register and an information generation circuit can reduce data to be transferred, and consequently save electric power. The register stores first information. The information generation circuit generates, in response to a signal acquired from the an exterior of the device, second information indicating which bits of the first information is to be inverted.
|
||||||
| 143 | SYSTEM AND METHOD FOR SAMPLING BASED ELIMINATION OF DUPLICATE DATA | EP07794387.6 | 2007-04-26 | EP2013973A2 | 2009-01-14 | ZHENG, Ling; STAGER, Roger; JOHNSTON, Craig; TRIMMER, Don; FRANDZEL, Yuval |
| A technique for eliminating duplicate data is provided. Upon receipt of a new data set, one or more anchor points are identified within the data set. A bit-by-bit data comparison is then performed of the region surrounding the anchor point in the received data set with the region surrounding an anchor point stored within a pattern database to identify forward/backward delta values. The duplicate data identified by the anchor point, forward and backward delta values is then replaced in the received data set with a storage indicator. | ||||||
| 144 | Codage/décodage perfectionnés de signaux numériques, en particulier en quantification vectorielle avec codes à permutation | EP08165511.0 | 2007-02-13 | EP2009801A2 | 2008-12-31 | Ragot, Stéphane; Lamblin, Claude |
L'invention concerne le codage/décodage de signaux numériques, utilisant en particulier des codes à permutation faisant intervenir un calcul d'expressions combinatoires. Selon l'invention, ces expressions combinatoires sont représentées par des décompositions en puissances de facteurs premiers, et déterminées par une lecture mémoire de représentations préenregistrées de décompositions de nombres entiers choisis. |
||||||
| 145 | CODAGE/DECODAGE PERFECTIONNES DE SIGNAUX NUMERIQUES, EN PARTICULIER EN QUANTIFICATION VECTORIELLE AVEC CODES A PERMUTATION | EP07731603.2 | 2007-02-13 | EP2002546A2 | 2008-12-17 | RAGOT, Stéphane; LAMBLIN, Claude |
| The invention relates to the encoding/decoding of digital signals, especially using permutation codes involving a calculation of combinatorial expressions. According to the invention, the combinatorial expressions are represented by prime factor power decompositions, and determined by a preliminary reading of pre-recorded representations of decompositions of selected integers. | ||||||
| 146 | Combined channel and entropy decoding | EP00203909.7 | 2000-11-08 | EP1098447B1 | 2006-02-22 | Yamaguchi, Hirohisa |
| 147 | Semiconductor device with circuitry for efficient information exchange | EP01310305.6 | 2001-12-10 | EP1239594A3 | 2004-04-21 | Matsuzaki, Yasurou, c/o Fujitsu Limited; Taguchi, Masao, c/o Fujitsu Limited |
A semiconductor device having a register and an information generation circuit can reduce data to be transferred, and consequently save electric power. The register stores first information. The information generation circuit generates, in response to a signal acquired from the an exterior of the device, second information indicating which bits of the first information is to be inverted. |
||||||
| 148 | RELOCATING CONTEXT INFORMATION IN HEADER COMPRESSION | EP02716109.0 | 2002-01-09 | EP1356655A1 | 2003-10-29 | KALLIOKULJU, Juha; LÄNSISALMI, Atte; SAIFULLAH, Yousuf; LE, KHIEM |
| A method of relocating the header compression context in a packet network which transmits packets having compressed headers. A connection is established between a mobile terminal and a first network entity and context information used with compression and decompression of the headers of the packets is stored at the mobile terminal and the first network entity. The context information updating is stopped in the mobile terminal and in the first network entity and after that, a snapshot of the compression and decompression context information is taken and stored in the first network entity. The connection between the first network entity and the mobile terminal is changed to a connection between the mobile terminal and a second network entity. The context information snapshot stored by the first network entity is transferred to the second network entity to be stored therein as the context information of the second network entity. The stored context information at the mobile terminal and the second network entity is then used for compression and decompression of the headers of the packets. | ||||||
| 149 | Combined channel and entropy decoding | EP00203909.7 | 2000-11-08 | EP1098447A3 | 2003-08-06 | Yamaguchi, Hirohisa |
A combined channel and entropy decoder is provided that achieves a significant bit-error rate improvement using likelihood values (61) instead of conventional bits. The likelihood values are stored in a buffer (62). A unique code-word is searched in the bit pattern or in the likelihood value. When a unique code-word is found at the identifier (63), candidate code-words are loaded into computation units where each unit computes code-word likelihood for a given code-word bit pattern. The code-word likelihood values are compared and the selected code information is fed back to the code-word controller 67 to proceed to the next-step decoding. |
||||||
| 150 | 5-ARY RECEIVER UTILIZING COMMON MODE INSENSITIVE DIFFERENTIAL OFFSET COMPARATOR | EP01957996.0 | 2001-07-19 | EP1305880A2 | 2003-05-02 | CICCONE, John; SESSIONS, D., C.; LIEPOLD, Carl |
| A signal converter is provided for converting multiple level encoded digital signals into a binary equivalent signal. The signal converter includes a reference voltage generator, a plurality of four-input differential comparators, timing recovery circuitry, and signal conversion circuitry. The reference voltage generator is operative to generate a plurality of progressively larger differential reference voltages. The plurality of differential comparators are each operative to compare magnitude of a differential input voltage with magnitude of a dedicated one of the progressively larger differential reference voltages and produce a differential output voltage having a first logical sense if the magnitude of the differential input voltage is greater than the magnitude of the differential reference voltage, and having a second logical sense if the magnitude of the differential input voltage is less than the magnitude of the differential reference voltage. Each comparator has an offset input voltage. The timing recovery circuitry is configured to receive the differential output voltages from each of the differential comparators and is operative to derive a clock via edge detection and generate a recovered clock signal. The signal conversion circuitry is coupled with the timing recovery circuitry and the differential comparators and is operative to convert the differential output voltages into a binary equivalent. A method is also provided. | ||||||
| 151 | Semiconductor device with circuitry for efficient information exchange | EP01310305.6 | 2001-12-10 | EP1239594A2 | 2002-09-11 | Matsuzaki, Yasurou, c/o Fujitsu Limited; Taguchi, Masao, c/o Fujitsu Limited |
A semiconductor device having a register and an information generation circuit can reduce data to be transferred, and consequently save electric power. The register stores first information. The information generation circuit generates, in response to a signal acquired from the an exterior of the device, second information indicating which bits of the first information is to be inverted. |
||||||
| 152 | Combined channel and entropy decoding | EP00203909.7 | 2000-11-08 | EP1098447A2 | 2001-05-09 | Yamaguchi, Hirohisa |
A combined channel and entropy decoder is provided that achieves a significant bit-error rate improvement using likelihood values (61) instead of conventional bits. The likelihood values are stored in a buffer (62). A unique code-word is searched in the bit pattern or in the likelihood value. When a unique code-word is found at the identifier (63), candidate code-words are loaded into computation units where each unit computes code-word likelihood for a given code-word bit pattern. The code-word likelihood values are compared and the selected code information is fed back to the code-word controller 67 to proceed to the next-step decoding. |
||||||
| 153 | EFFICIENT CODING OF SIDE INFORMATION IN A LOSSLESS ENCODER | EP99965560.8 | 1999-12-24 | EP1062732A1 | 2000-12-27 | BRUEKERS, Alphons, A., M., L.; RIJNBERG, Adriaan, J. |
| For 'Super Audio CD' (SACD) the DSD signals are losslessly coded, using framing, prediction and entropy coding. Besides the efficiently encoded signals, a large number of parameters, i.e. the side-information, has to be stored on the SACD too. The side information comprises the prediction filter coefficients and the probability table which have been used for encoding, and which should be transmitted to the decoder. The smaller the storage capacity that is required for the side-information, the better the overall coding gain is. Therefore coding techniques are applied to the side-information too so as to compress the amount of data of the side information. The frames can be segmented, each segment having its own set of filter coefficients and probability table. | ||||||
| 154 | DIGITALES CODIERVERFAHREN | EP87905587.9 | 1987-08-29 | EP0287578B1 | 1995-08-09 | BRANDENBURG, Karl-Heinz |
| A digital coding process for transmitting and/or storing acoustic signals, in particular musical signals, in which N pick-up values of the acoustic signal are transformed into M spectral coefficients. The process is characterised by the fact that in a first stage the M spectral coefficients are quantified. After coding, an optimal coder checks the number of bits necessary for reproduction. If the number of bits is above a predetermined number, the quantification and coding are repeated in further stages until the number of bits necessary for reproduction no longer exceeds the predetermined number of bits. The required quantification stage is transmitted or stored in addition to the data bits. The advantage of the process is that acoustic signals in particular musical signals, can be transmitted and/or recorded without any subjective quality reduction of the musical signals with a reduction of data rate by factors of 4 to 6. | ||||||
| 155 | Procédé et appareil programmable pour le transcodage de chaînes de caractères | EP87402737.8 | 1987-12-02 | EP0272969B1 | 1992-05-20 | Valero, Robert; Mounier, Jean-Pierre; Berruyer, Yves |
| 156 | Protocol converting apparatus for videotex system | EP86112492.3 | 1986-09-10 | EP0218113B1 | 1991-02-20 | Maeda, Satoru c/o Sony Corp.; Tao, Akihiko c/o Sony Corp. |
| 157 | Method and apparatus for transforming prestel codes to naplps codes | EP86301985.7 | 1986-03-18 | EP0196191B1 | 1990-09-12 | Tonomura, Masashi c/o Sony Corporation |
| 158 | Procédé de transcodage d'une image vidéotex pour la rendre compatible avec plusieurs systèmes vidéotex | EP86401469.1 | 1986-07-02 | EP0209441A1 | 1987-01-21 | Nahon, Georges |
Le procédé concerne le transcodage d'un message vidéographique primaire décrivant une image primaire dans un premier langage vidéographique en un message vidéographique secondaire décrivant une image secondaire dans ledit premier langage vidéographique et dans au moins un autre langage vidéographique. Ce procédé consiste, pour chaque donnée du message vidéographique primaire, à comparer le code du langage vidéographique primaire associé à cette donnée aux codes des autres langages vidéographiques associés à cette donnée et, selon le résultat de cette comparaison et selon le type du code (caractère, commande, visualisation), à inscrire dans le message vidéographique secondaire une donnée ou une suite de données représentant une même fonction dans les différents langages vidéographiques. |
||||||
| 159 | Method and apparatus for transforming prestel codes to naplps codes | EP86301985.7 | 1986-03-18 | EP0196191A2 | 1986-10-01 | Tonomura, Masashi c/o Sony Corporation |
A terminal which is capable of receiving, converting and displaying both NAPLPS and PRESTEL coded signals and which includes means for invoking NAPLPS control and character codes, corresponding to the same, received PRESTEL codes, to an in-use table from NAPLPS code look-up tables at the terminal and for separately processing, decoding and converting PRESTEL attribute codes to produce corresponding NAPLPS codes. |
||||||
| 160 | MULTI-CODE-TRIBLES TRILUZ VALUES | PCT/IB2011001003 | 2011-05-05 | WO2012059799A9 | 2013-09-12 | MARIN CARLOS DE JESUS JARAMILLO |
| The invention relate to a code that is multi-functional owing to its processes and results, constituted by correlating multiple systems such as the letters of the Spanish alphabet, base ten numbers, base nine numbers, bits, tactile writing, tones of the musical scale, digital sounds and light by means of systems of: colors, spectra, wave ranges, photons, pulses, or joules. It has a primary logic of three base nine stages, comprising a unit. One of the main tools of this code is twenty-seven groups as tribbles. | ||||||
