ES2149828T3 - Metodo de codificacion, codificador y decodificador para una señal digital. - Google Patents
Metodo de codificacion, codificador y decodificador para una señal digital.Info
- Publication number
- ES2149828T3 ES2149828T3 ES94100597T ES94100597T ES2149828T3 ES 2149828 T3 ES2149828 T3 ES 2149828T3 ES 94100597 T ES94100597 T ES 94100597T ES 94100597 T ES94100597 T ES 94100597T ES 2149828 T3 ES2149828 T3 ES 2149828T3
- Authority
- ES
- Spain
- Prior art keywords
- quantification
- precision
- digital signal
- information
- coding
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
Abstract
AL CUANTIFICAR UNA SEÑAL DIGITAL POR CADA BANDA DE FRECUENCIA MEDIANTE UNAS UNIDADES DE CUANTIFICACION Y TRANSMITIR (TRANSMITIR O REGISTRAR) TAL SEÑAL DIGITAL CUANTIFICADA, UNA SEGUNDA INFORMACION DE LA PRECISION DE LA CUANTIFICACION (Q2A A Q2D) QUE INDICA UNA DIFERENCIA ENTRE LA PRIMERA INFORMACION DE LA PRECISION DE LA CUANTIFICACION (Q1A A Q1D) QUE SIRVE DE REFERENCIA Y SE CODIFICA UNA INFORMACION SOBRE LA PRECISION DE LA CUANTIFICACION ACTUAL (QA A QD) DE UNA UNIDAD DE DETERMINACION DE LA PRECISION DE LA CUANTIFICACION CUYA CODIFICACION SE LLEVA A CABO EN UNA UNIDAD DE CODIFICACION DE LA INFORMACION DE PRECISION DE LA CUANTIFICACION (18) PARA TRANSMITIR LA INFORMACION DE PRECISION DE LA CUANTIFICACION CODIFICADA Y ASI LLEVAR A CABO UNA CODIFICACION EFICIENTE AL TIEMPO QUE SE MANTIENE EL GRADO DE LIBERTAD EN LA FORMA DE PROPORCIONAR LA PRECISION DE LA CUANTIFICACION. SEGUN ESTO SE PUEDE CONSEGUIR UNA CODIFICACION MAS EFICIENTE AL TIEMPO QUE SE DEJA EL GRADO DE LIBERTAD EN LA FORMA PROPORCIONAR LA PRECISION DE LA CUANTIFICACION MEDIANTE UN MENOR NUMERO DE BITS.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP00787293A JP3186290B2 (ja) | 1993-01-20 | 1993-01-20 | 符号化方法、符号化装置、復号化装置及び記録媒体 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES2149828T3 true ES2149828T3 (es) | 2000-11-16 |
Family
ID=11677726
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES94100597T Expired - Lifetime ES2149828T3 (es) | 1993-01-20 | 1994-01-17 | Metodo de codificacion, codificador y decodificador para una señal digital. |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US5515395A (es) |
| EP (1) | EP0612155B1 (es) |
| JP (1) | JP3186290B2 (es) |
| KR (1) | KR100330288B1 (es) |
| DE (1) | DE69425768T2 (es) |
| ES (1) | ES2149828T3 (es) |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100368854B1 (ko) * | 1993-06-30 | 2003-05-17 | 소니 가부시끼 가이샤 | 디지털신호의부호화장치,그의복호화장치및기록매체 |
| JP2596363B2 (ja) * | 1993-12-01 | 1997-04-02 | 日本電気株式会社 | 映像スクランブル装置および映像スクランブル解除装置 |
| JP3307138B2 (ja) * | 1995-02-27 | 2002-07-24 | ソニー株式会社 | 信号符号化方法及び装置、並びに信号復号化方法及び装置 |
| DE19643584C2 (de) * | 1995-10-11 | 2001-05-10 | Mitsubishi Electric Corp | Verfahren und Vorrichtung zur Steuerung von Mehrbelegungsverbindungen |
| US6782365B1 (en) | 1996-12-20 | 2004-08-24 | Qwest Communications International Inc. | Graphic interface system and product for editing encoded audio data |
| US6463405B1 (en) | 1996-12-20 | 2002-10-08 | Eliot M. Case | Audiophile encoding of digital audio data using 2-bit polarity/magnitude indicator and 8-bit scale factor for each subband |
| US5864820A (en) * | 1996-12-20 | 1999-01-26 | U S West, Inc. | Method, system and product for mixing of encoded audio signals |
| US5864813A (en) * | 1996-12-20 | 1999-01-26 | U S West, Inc. | Method, system and product for harmonic enhancement of encoded audio signals |
| US6516299B1 (en) | 1996-12-20 | 2003-02-04 | Qwest Communication International, Inc. | Method, system and product for modifying the dynamic range of encoded audio signals |
| US5845251A (en) * | 1996-12-20 | 1998-12-01 | U S West, Inc. | Method, system and product for modifying the bandwidth of subband encoded audio data |
| US6477496B1 (en) | 1996-12-20 | 2002-11-05 | Eliot M. Case | Signal synthesis by decoding subband scale factors from one audio signal and subband samples from different one |
| JP4148485B2 (ja) * | 1998-10-05 | 2008-09-10 | キヤノン株式会社 | 画像形成装置、及び複写機 |
| EP1345331B1 (en) * | 2000-12-22 | 2008-08-20 | Sony Corporation | Encoder |
| JP2003110429A (ja) * | 2001-09-28 | 2003-04-11 | Sony Corp | 符号化方法及び装置、復号方法及び装置、伝送方法及び装置、並びに記録媒体 |
| DE102004007184B3 (de) * | 2004-02-13 | 2005-09-22 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Verfahren und Vorrichtung zum Quantisieren eines Informationssignals |
| JP5316896B2 (ja) * | 2010-03-17 | 2013-10-16 | ソニー株式会社 | 符号化装置および符号化方法、復号装置および復号方法、並びにプログラム |
| US9871418B2 (en) | 2012-11-01 | 2018-01-16 | General Electric Company | Sensorless electric machine |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1184023B (it) * | 1985-12-17 | 1987-10-22 | Cselt Centro Studi Lab Telecom | Procedimento e dispositivo per la codifica e decodifica del segnale vocale mediante analisi a sottobande e quantizzazione vettorariale con allocazione dinamica dei bit di codifica |
| KR890702346A (ko) * | 1987-09-30 | 1989-12-23 | 로베르트 아인젤 | 가청신호의 전송방법 |
| US4956871A (en) * | 1988-09-30 | 1990-09-11 | At&T Bell Laboratories | Improving sub-band coding of speech at low bit rates by adding residual speech energy signals to sub-bands |
| JP3033060B2 (ja) * | 1988-12-22 | 2000-04-17 | 国際電信電話株式会社 | 音声予測符号化・復号化方式 |
| US5222189A (en) * | 1989-01-27 | 1993-06-22 | Dolby Laboratories Licensing Corporation | Low time-delay transform coder, decoder, and encoder/decoder for high-quality audio |
| US5230038A (en) * | 1989-01-27 | 1993-07-20 | Fielder Louis D | Low bit rate transform coder, decoder, and encoder/decoder for high-quality audio |
| US5142656A (en) * | 1989-01-27 | 1992-08-25 | Dolby Laboratories Licensing Corporation | Low bit rate transform coder, decoder, and encoder/decoder for high-quality audio |
| US5109417A (en) * | 1989-01-27 | 1992-04-28 | Dolby Laboratories Licensing Corporation | Low bit rate transform coder, decoder, and encoder/decoder for high-quality audio |
| JP3033156B2 (ja) * | 1990-08-24 | 2000-04-17 | ソニー株式会社 | ディジタル信号符号化装置 |
| JP3134455B2 (ja) * | 1992-01-29 | 2001-02-13 | ソニー株式会社 | 高能率符号化装置及び方法 |
-
1993
- 1993-01-20 JP JP00787293A patent/JP3186290B2/ja not_active Expired - Lifetime
- 1993-12-27 US US08/173,213 patent/US5515395A/en not_active Expired - Lifetime
-
1994
- 1994-01-14 KR KR1019940000558A patent/KR100330288B1/ko not_active Expired - Lifetime
- 1994-01-17 DE DE69425768T patent/DE69425768T2/de not_active Expired - Fee Related
- 1994-01-17 EP EP94100597A patent/EP0612155B1/en not_active Expired - Lifetime
- 1994-01-17 ES ES94100597T patent/ES2149828T3/es not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JP3186290B2 (ja) | 2001-07-11 |
| JPH06216782A (ja) | 1994-08-05 |
| KR100330288B1 (ko) | 2002-07-27 |
| EP0612155A3 (en) | 1995-04-12 |
| US5515395A (en) | 1996-05-07 |
| EP0612155A2 (en) | 1994-08-24 |
| DE69425768T2 (de) | 2001-01-04 |
| DE69425768D1 (de) | 2000-10-12 |
| EP0612155B1 (en) | 2000-09-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FG2A | Definitive protection |
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