BR9906331A - Aparelho codificador/decodificador aritmético para codificar/decodificar aritmeticamente um sinal de informação digital, processo de codificação aritmética para codificar aritmeticamente um sinal de informação digital, e, suporte de gravação - Google Patents
Aparelho codificador/decodificador aritmético para codificar/decodificar aritmeticamente um sinal de informação digital, processo de codificação aritmética para codificar aritmeticamente um sinal de informação digital, e, suporte de gravaçãoInfo
- Publication number
- BR9906331A BR9906331A BR9906331-0A BR9906331A BR9906331A BR 9906331 A BR9906331 A BR 9906331A BR 9906331 A BR9906331 A BR 9906331A BR 9906331 A BR9906331 A BR 9906331A
- Authority
- BR
- Brazil
- Prior art keywords
- encoding
- information signal
- digital information
- arithmetic
- arithmetically
- Prior art date
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
- H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
- H03M7/40—Conversion to or from variable length codes, e.g. Shannon-Fano code, Huffman code, Morse code
-
- 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
- H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
- H03M7/40—Conversion to or from variable length codes, e.g. Shannon-Fano code, Huffman code, Morse code
- H03M7/4006—Conversion to or from arithmetic code
-
- 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
- H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
- H03M7/3002—Conversion to or from differential modulation
- H03M7/3004—Digital delta-sigma modulation
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
Abstract
"APARELHO CODIFICADOR/DECODIFICADOR ARITMéTICO PARA CODIFICAR/DECODIFICAR ARITMETICAMENTE UM SINAL DE INFORMAçãO DIGITAL, PROCESSO DE CODIFICAçãO ARITMéTICA PARA CODIFICAR ARITMETICAMENTE UM SINAL DE INFORMAçãO DIGITAL, E, SUPORTE DE GRAVAçãO". Sinais de áudio podem ser convertidos de analógicos em digitais utilizando as bem conhecidas técnicas de modulação Sigma-Delta. O sinal digital então consiste em uma seq³ência de amostras de 1-bit a uma freq³ência de .ex.2822400 Hz (=64*44100 Hz). Técnicas de codificação sem perda são conhecidas para reduzir a capacidade de armazenamento ou transmissão requerida para estes sinais de áudio de 1-bit sobreamostrados. Com a invenção atual o desempenho (razão de compactação) do codificador sem perda para sinais de áudio de 1-bit sobreamostrados pode ser aperfeiçoada. Isto é realizado às vezes anulando de probabilidade para o codificador sem perdas.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP98200869 | 1998-03-19 | ||
| PCT/IB1999/000307 WO1999048211A2 (en) | 1998-03-19 | 1999-02-22 | Arithmetic encoding/decoding of a digital information signal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| BR9906331A true BR9906331A (pt) | 2000-07-04 |
| BR9906331B1 BR9906331B1 (pt) | 2012-08-21 |
Family
ID=8233482
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BRPI9906331-0A BR9906331B1 (pt) | 1998-03-19 | 1999-02-22 | aparelho codificador/decodificador aritmético para codificar/decodificar aritmeticamente um sinal de informação digital, processo de codificação aritmética para codificar aritmeticamente um sinal de informação digital, e, suporte de gravação. |
Country Status (14)
| Country | Link |
|---|---|
| US (1) | US6275176B1 (pt) |
| EP (2) | EP0983634B1 (pt) |
| JP (1) | JP4179638B2 (pt) |
| KR (1) | KR100630944B1 (pt) |
| CN (2) | CN1555134B (pt) |
| AR (1) | AR018758A1 (pt) |
| AT (2) | ATE342612T1 (pt) |
| AU (1) | AU757097B2 (pt) |
| BR (1) | BR9906331B1 (pt) |
| DE (2) | DE69933519T2 (pt) |
| ES (2) | ES2298942T3 (pt) |
| MY (1) | MY125647A (pt) |
| PT (2) | PT1605596E (pt) |
| WO (1) | WO1999048211A2 (pt) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1603244B1 (en) * | 1996-11-07 | 2007-08-22 | Koninklijke Philips Electronics N.V. | Transmitting of a bitstream signal |
| AU760707B2 (en) * | 1999-01-07 | 2003-05-22 | Koninklijke Philips Electronics N.V. | Efficient coding of side information in a lossless encoder |
| JP3807342B2 (ja) * | 2002-04-25 | 2006-08-09 | 三菱電機株式会社 | デジタル信号符号化装置、デジタル信号復号装置、デジタル信号算術符号化方法、およびデジタル信号算術復号方法 |
| EP2894855B1 (en) * | 2002-04-26 | 2019-05-22 | NTT DoCoMo, Inc. | Signal decoding method, signal decoding device and signal decoding program |
| KR101170629B1 (ko) * | 2003-10-06 | 2012-08-02 | 디지털 파운튼, 인크. | 단일 송신기 또는 다중 송신기를 갖는 통신 시스템의 에러 정정 다중-스테이지 코드 생성기 및 디코더 |
| US7400277B2 (en) * | 2004-04-06 | 2008-07-15 | International Business Machines Corporation | Method and system for the compression of probability tables |
| KR100829558B1 (ko) * | 2005-01-12 | 2008-05-14 | 삼성전자주식회사 | 스케일러블 오디오 데이터 산술 복호화 방법 및 장치와스케일러블 오디오 비트스트림 절단 방법 |
| CN101499282B (zh) * | 2008-02-03 | 2012-03-07 | 深圳艾科创新微电子有限公司 | 一种语音模数转换方法及装置 |
| US9312886B2 (en) | 2013-09-20 | 2016-04-12 | Seagate Technology Llc | Storage device with multiple coding redundancies |
| US8976474B1 (en) | 2013-10-03 | 2015-03-10 | Seagate Technology Llc | Universal modulation coding for a data channel |
| CN113078834B (zh) * | 2021-03-25 | 2022-02-18 | 华中科技大学 | 基于数字式delta-sigma与PID双环控制的逆变器及设计方法 |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US557274A (en) * | 1896-03-31 | Soda watee appaeatus | ||
| CA1085044A (en) * | 1975-04-03 | 1980-09-02 | Yukihiko Iijima | Composite feedback predictive code communication system for a color tv signal including a carrier chrominance signal |
| US4286256A (en) * | 1979-11-28 | 1981-08-25 | International Business Machines Corporation | Method and means for arithmetic coding utilizing a reduced number of operations |
| JPS61107818A (ja) * | 1984-10-30 | 1986-05-26 | Nec Corp | エントロピ−符号化方式とその装置 |
| US5023611A (en) * | 1989-07-28 | 1991-06-11 | At&T Bell Laboratories | Entropy encoder/decoder including a context extractor |
| US5475388A (en) * | 1992-08-17 | 1995-12-12 | Ricoh Corporation | Method and apparatus for using finite state machines to perform channel modulation and error correction and entropy coding |
| US5381145A (en) * | 1993-02-10 | 1995-01-10 | Ricoh Corporation | Method and apparatus for parallel decoding and encoding of data |
| KR0138029B1 (ko) * | 1993-06-07 | 1998-05-15 | 가나이 쯔또무 | Ad 컨버터 및 그것을 사용한 자기기록재생장치(ad converter and magnetic recording/regenerating apparatus using thereof |
| JP3027089B2 (ja) * | 1993-08-06 | 2000-03-27 | 三菱電機株式会社 | 符号化方式及び復号方式及び符号化復号方法 |
| JP3474005B2 (ja) * | 1994-10-13 | 2003-12-08 | 沖電気工業株式会社 | 動画像符号化方法及び動画像復号方法 |
| US6055338A (en) * | 1996-08-22 | 2000-04-25 | Sumitomo Metal Industries Limited | Bi-level adaptive coding using a dual port memory and a context comparator |
-
1999
- 1999-02-22 DE DE69933519T patent/DE69933519T2/de not_active Expired - Lifetime
- 1999-02-22 JP JP54674699A patent/JP4179638B2/ja not_active Expired - Lifetime
- 1999-02-22 DE DE69937761T patent/DE69937761T2/de not_active Expired - Lifetime
- 1999-02-22 ES ES05106390T patent/ES2298942T3/es not_active Expired - Lifetime
- 1999-02-22 PT PT05106390T patent/PT1605596E/pt unknown
- 1999-02-22 CN CN2004100368255A patent/CN1555134B/zh not_active Expired - Lifetime
- 1999-02-22 EP EP99902767A patent/EP0983634B1/en not_active Expired - Lifetime
- 1999-02-22 BR BRPI9906331-0A patent/BR9906331B1/pt not_active IP Right Cessation
- 1999-02-22 EP EP05106390A patent/EP1605596B1/en not_active Expired - Lifetime
- 1999-02-22 WO PCT/IB1999/000307 patent/WO1999048211A2/en not_active Ceased
- 1999-02-22 AT AT99902767T patent/ATE342612T1/de active
- 1999-02-22 AU AU22952/99A patent/AU757097B2/en not_active Expired
- 1999-02-22 CN CNB998007919A patent/CN1188949C/zh not_active Expired - Lifetime
- 1999-02-22 PT PT99902767T patent/PT983634E/pt unknown
- 1999-02-22 KR KR1019997010627A patent/KR100630944B1/ko not_active Expired - Lifetime
- 1999-02-22 ES ES99902767T patent/ES2273474T3/es not_active Expired - Lifetime
- 1999-02-22 AT AT05106390T patent/ATE381151T1/de active
- 1999-03-16 AR ARP990101131A patent/AR018758A1/es active IP Right Grant
- 1999-03-17 MY MYPI99001004A patent/MY125647A/en unknown
- 1999-03-18 US US09/271,746 patent/US6275176B1/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| CN1555134A (zh) | 2004-12-15 |
| JP2001527732A (ja) | 2001-12-25 |
| PT1605596E (pt) | 2008-03-18 |
| AU2295299A (en) | 1999-10-11 |
| EP0983634B1 (en) | 2006-10-11 |
| CN1272249A (zh) | 2000-11-01 |
| JP4179638B2 (ja) | 2008-11-12 |
| ES2273474T3 (es) | 2007-05-01 |
| KR100630944B1 (ko) | 2006-10-04 |
| ATE342612T1 (de) | 2006-11-15 |
| AU757097B2 (en) | 2003-01-30 |
| EP1605596A2 (en) | 2005-12-14 |
| ATE381151T1 (de) | 2007-12-15 |
| AR018758A1 (es) | 2001-12-12 |
| MY125647A (en) | 2006-08-30 |
| US6275176B1 (en) | 2001-08-14 |
| ES2298942T3 (es) | 2008-05-16 |
| DE69933519D1 (de) | 2006-11-23 |
| WO1999048211A3 (en) | 1999-11-18 |
| KR20010012666A (ko) | 2001-02-26 |
| CN1188949C (zh) | 2005-02-09 |
| BR9906331B1 (pt) | 2012-08-21 |
| EP0983634A2 (en) | 2000-03-08 |
| PT983634E (pt) | 2007-01-31 |
| WO1999048211A2 (en) | 1999-09-23 |
| EP1605596A3 (en) | 2005-12-21 |
| DE69937761D1 (de) | 2008-01-24 |
| CN1555134B (zh) | 2013-06-19 |
| DE69933519T2 (de) | 2007-06-21 |
| EP1605596B1 (en) | 2007-12-12 |
| DE69937761T2 (de) | 2008-11-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR19990072035A (ko) | 오디오신호의데이터압축및복원장치와방법 | |
| BR9906331A (pt) | Aparelho codificador/decodificador aritmético para codificar/decodificar aritmeticamente um sinal de informação digital, processo de codificação aritmética para codificar aritmeticamente um sinal de informação digital, e, suporte de gravação | |
| BG104748A (en) | Efficient coding of side information in a lossless encoder | |
| CN1202623C (zh) | 多道信息信号的算术编码/解码 | |
| DE69933119D1 (de) | Verfahren und vorrichtung zur maskierung des quantisierungsrauschens von audiosignalen | |
| BR0305556A (pt) | Método e codificador para codificar pelo menos parte de um sinal de áudio a fim de obter um sinal codificado, sinal codificado representando pelo menos parte de um sinal de áudio, meio de armazenamento, método e decodificador para decodificar um sinal codificado, transmissor, receptor, e, sistema | |
| JPS6477391A (en) | System and device for predictive coding | |
| BR0204834A (pt) | Métodos de codificação de um sinal de áudio e de decodificação de uma corrente de áudio, codificador de áudio, aparelho de reprodução de áudio, sistema de áudio, corrente de áudio, e, meio de armazenamento | |
| GB0104035D0 (en) | Method of and apparatus for converting an audio signal between data compression formats | |
| WO1994003988A3 (en) | Dithered digital signal processing system | |
| US20020165710A1 (en) | Method in the decompression of an audio signal | |
| CA2376720A1 (en) | Coding method, coding apparatus, decoding method and decoding apparatus using subsampling | |
| KR970072719A (ko) | 신호 양자화기 | |
| KR960016631A (ko) | 정보부호화 방법과 장치, 정보복호화 방법과 장치 및 기록매체 | |
| BR9805296A (pt) | Método de processamento de imagem, apareho de processamento de imagem e meio de armazenamento de dados. | |
| KR100480785B1 (ko) | 그레이코드를 이용한 비트플레인 부호화 및 복호화 방법및 장치 | |
| ES2237081T3 (es) | Prediccion de datos en un sistema de transmision. | |
| WO2026086912A1 (en) | Audio processing method, apparatus, system, and medium | |
| JP3945827B2 (ja) | 複数のディジタル情報信号に関するデータの圧縮/伸長 | |
| Jayant et al. | Adaptive aperture coding for speech waveforms—I | |
| JP2543345B2 (ja) | 音声符号化方式 | |
| KR970023239A (ko) | 컴팩트 디스크의 서브코드 영역을 서라운드 기능에 적용하기 위한 장치 | |
| KR20050040441A (ko) | 스케일러블 오디오 복/부호화 방법 및 장치 | |
| KR950030491A (ko) | 부호화기 | |
| KR970056941A (ko) | 하드디스크 저장형 디지탈 캠코더 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| B07A | Application suspended after technical examination (opinion) [chapter 7.1 patent gazette] | ||
| B06A | Patent application procedure suspended [chapter 6.1 patent gazette] | ||
| B09A | Decision: intention to grant [chapter 9.1 patent gazette] | ||
| B16A | Patent or certificate of addition of invention granted [chapter 16.1 patent gazette] |
Free format text: PRAZO DE VALIDADE: 10 (DEZ) ANOS CONTADOS A PARTIR DE 21/08/2012, OBSERVADAS AS CONDICOES LEGAIS. |
|
| B25D | Requested change of name of applicant approved | ||
| B25G | Requested change of headquarter approved | ||
| B21A | Patent or certificate of addition expired [chapter 21.1 patent gazette] |
Free format text: PATENTE EXTINTA EM 21/08/2022 |