BR9800778A - Processo e aparelho de codificação e decodificação de informação e meio de gravação de informação. - Google Patents
Processo e aparelho de codificação e decodificação de informação e meio de gravação de informação.Info
- Publication number
- BR9800778A BR9800778A BR9800778-5A BR9800778A BR9800778A BR 9800778 A BR9800778 A BR 9800778A BR 9800778 A BR9800778 A BR 9800778A BR 9800778 A BR9800778 A BR 9800778A
- Authority
- BR
- Brazil
- Prior art keywords
- signals
- old
- reproduction device
- reproduced
- coding
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
- G11B20/10009—Improvement or modification of read or write signals
- G11B20/10305—Improvement or modification of read or write signals signal quality assessment
- G11B20/10361—Improvement or modification of read or write signals signal quality assessment digital demodulation process
- G11B20/1037—Improvement or modification of read or write signals signal quality assessment digital demodulation process based on hard decisions, e.g. by evaluating bit error rates before or after ECC decoding
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/66—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for reducing bandwidth of signals; for improving efficiency of transmission
- H04B1/665—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for reducing bandwidth of signals; for improving efficiency of transmission using psychoacoustic properties of the ear, e.g. masking effect
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
- G11B20/12—Formatting, e.g. arrangement of data block or words on the record carriers
- G11B20/1217—Formatting, e.g. arrangement of data block or words on the record carriers on discs
- G11B20/1258—Formatting, e.g. arrangement of data block or words on the record carriers on discs where blocks are arranged within multiple radial zones, e.g. Zone Bit Recording or Constant Density Recording discs, MCAV discs, MCLV discs
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
- G11B20/14—Digital recording or reproducing using self-clocking codes
- G11B20/1403—Digital recording or reproducing using self-clocking codes characterised by the use of two levels
- G11B20/1407—Digital recording or reproducing using self-clocking codes characterised by the use of two levels code representation depending on a single bit, i.e. where a one is always represented by a first code symbol while a zero is always represented by a second code symbol
- G11B20/1415—Digital recording or reproducing using self-clocking codes characterised by the use of two levels code representation depending on a single bit, i.e. where a one is always represented by a first code symbol while a zero is always represented by a second code symbol conversion to or from pulse frequency coding
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/00007—Time or data compression or expansion
- G11B2020/00072—Time or data compression or expansion the compressed signal including a video signal
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
- G11B20/12—Formatting, e.g. arrangement of data block or words on the record carriers
- G11B20/1217—Formatting, e.g. arrangement of data block or words on the record carriers on discs
- G11B2020/1218—Formatting, e.g. arrangement of data block or words on the record carriers on discs wherein the formatting concerns a specific area of the disc
- G11B2020/1225—Formatting, e.g. arrangement of data block or words on the record carriers on discs wherein the formatting concerns a specific area of the disc frame, i.e. a subunit of a sector containing user data, e.g. a sync frame
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
- Television Signal Processing For Recording (AREA)
Abstract
"PROCESSO E APARELHO DE CODIFICAçãO E DECODIFICAçãO DE INFORMAçãO E MEIO DE GRAVAçãO DE INFORMAçãO". No caso em que códigos de padrões antigos e novos são gravados no mesmo meio de gravação, é desejável que os sinais de padrão antigo possam ser reproduzidos por um dispositivo de reprodução acomodador do padrão antigo, enquanto ambos os sinais podem ser reproduzidos pelo dispositivo de reprodução acomadador do novo padrão, de modo a evitar a baixa da qualidade do sinal. Com este fim, se sinais multicanal são gravados em termos de uma estrutura, sem tamanho não pode ser controlado, um segundo circuito de codificação codifica sinais de um canal reproduzido pelo dispositivo de reprodução acomodador de padrão antigo, enquanto um primeiro circuito de codificação codifica os sinais de um canal reproduzido por um dispositivo de reprodução acomodador de padrão antigo, com um número de bits menor que o número máximo de bits que pode ser alocado àquela estrutura. Um circuito de geração de linha de código arranja uma linha de código codificada pelo segundo circuito de codificação numa área vazia de uma estrutura, provida pela codificação no primeiro circuito de codificação.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4251497 | 1997-02-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
BR9800778A true BR9800778A (pt) | 1999-11-23 |
Family
ID=12638189
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR9800778-5A BR9800778A (pt) | 1997-02-26 | 1998-02-26 | Processo e aparelho de codificação e decodificação de informação e meio de gravação de informação. |
Country Status (14)
Country | Link |
---|---|
US (1) | US6314391B1 (pt) |
EP (1) | EP0867867A3 (pt) |
KR (1) | KR100565017B1 (pt) |
CN (1) | CN1201308A (pt) |
AU (1) | AU757422B2 (pt) |
BR (1) | BR9800778A (pt) |
CA (1) | CA2230156A1 (pt) |
ID (1) | ID20232A (pt) |
MX (1) | MX9801478A (pt) |
PL (1) | PL325044A1 (pt) |
RU (1) | RU2221329C2 (pt) |
SG (1) | SG74613A1 (pt) |
TR (1) | TR199800315A3 (pt) |
TW (1) | TW429700B (pt) |
Families Citing this family (36)
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US6741965B1 (en) * | 1997-04-10 | 2004-05-25 | Sony Corporation | Differential stereo using two coding techniques |
JP2000057695A (ja) * | 1998-08-13 | 2000-02-25 | Sony Corp | 情報記録再生装置および方法、並びに提供媒体 |
JP2001126407A (ja) * | 1999-10-27 | 2001-05-11 | Sony Corp | 情報管理方法及び装置 |
US6931370B1 (en) * | 1999-11-02 | 2005-08-16 | Digital Theater Systems, Inc. | System and method for providing interactive audio in a multi-channel audio environment |
US6678647B1 (en) * | 2000-06-02 | 2004-01-13 | Agere Systems Inc. | Perceptual coding of audio signals using cascaded filterbanks for performing irrelevancy reduction and redundancy reduction with different spectral/temporal resolution |
JP4622164B2 (ja) * | 2001-06-15 | 2011-02-02 | ソニー株式会社 | 音響信号符号化方法及び装置 |
US8918316B2 (en) * | 2003-07-29 | 2014-12-23 | Alcatel Lucent | Content identification system |
US7519520B2 (en) * | 2003-10-13 | 2009-04-14 | Realnetworks, Inc. | Compact signal coding method and apparatus |
WO2005073959A1 (en) * | 2004-01-28 | 2005-08-11 | Koninklijke Philips Electronics N.V. | Audio signal decoding using complex-valued data |
JP4988716B2 (ja) | 2005-05-26 | 2012-08-01 | エルジー エレクトロニクス インコーポレイティド | オーディオ信号のデコーディング方法及び装置 |
US8577686B2 (en) | 2005-05-26 | 2013-11-05 | Lg Electronics Inc. | Method and apparatus for decoding an audio signal |
EP1905004A2 (en) | 2005-05-26 | 2008-04-02 | LG Electronics Inc. | Method of encoding and decoding an audio signal |
JP2009500656A (ja) | 2005-06-30 | 2009-01-08 | エルジー エレクトロニクス インコーポレイティド | オーディオ信号をエンコーディング及びデコーディングするための装置とその方法 |
EP1908057B1 (en) | 2005-06-30 | 2012-06-20 | LG Electronics Inc. | Method and apparatus for decoding an audio signal |
EP1946294A2 (en) | 2005-06-30 | 2008-07-23 | LG Electronics Inc. | Apparatus for encoding and decoding audio signal and method thereof |
RU2376656C1 (ru) * | 2005-08-30 | 2009-12-20 | ЭлДжи ЭЛЕКТРОНИКС ИНК. | Способ кодирования и декодирования аудиосигнала и устройство для его осуществления |
TWI405475B (zh) | 2005-08-30 | 2013-08-11 | Lg Electronics Inc | 音頻訊號之編碼及解碼裝置及其方法、電腦可讀取媒體及其系統、及可代表該音頻訊號位元流中之資料結構 |
US7788107B2 (en) | 2005-08-30 | 2010-08-31 | Lg Electronics Inc. | Method for decoding an audio signal |
US8577483B2 (en) | 2005-08-30 | 2013-11-05 | Lg Electronics, Inc. | Method for decoding an audio signal |
JP4568363B2 (ja) | 2005-08-30 | 2010-10-27 | エルジー エレクトロニクス インコーポレイティド | オーディオ信号デコーディング方法及びその装置 |
US7751485B2 (en) | 2005-10-05 | 2010-07-06 | Lg Electronics Inc. | Signal processing using pilot based coding |
EP1946299A4 (en) | 2005-10-05 | 2009-12-02 | Lg Electronics Inc | METHOD AND APPARATUS FOR SIGNAL PROCESSING |
US7672379B2 (en) | 2005-10-05 | 2010-03-02 | Lg Electronics Inc. | Audio signal processing, encoding, and decoding |
KR100857117B1 (ko) | 2005-10-05 | 2008-09-05 | 엘지전자 주식회사 | 신호 처리 방법 및 이의 장치, 그리고 인코딩 및 디코딩방법 및 이의 장치 |
US8068569B2 (en) | 2005-10-05 | 2011-11-29 | Lg Electronics, Inc. | Method and apparatus for signal processing and encoding and decoding |
US7646319B2 (en) | 2005-10-05 | 2010-01-12 | Lg Electronics Inc. | Method and apparatus for signal processing and encoding and decoding method, and apparatus therefor |
US7696907B2 (en) | 2005-10-05 | 2010-04-13 | Lg Electronics Inc. | Method and apparatus for signal processing and encoding and decoding method, and apparatus therefor |
US20070092086A1 (en) | 2005-10-24 | 2007-04-26 | Pang Hee S | Removing time delays in signal paths |
KR20080086548A (ko) | 2006-01-19 | 2008-09-25 | 엘지전자 주식회사 | 미디어 신호 처리 방법 및 장치 |
EP1984913A4 (en) | 2006-02-07 | 2011-01-12 | Lg Electronics Inc | DEVICE AND METHOD FOR CODING / DECODING A SIGNAL |
ES2376889T3 (es) * | 2006-03-24 | 2012-03-20 | Dolby International Ab | Generación de mezclas descendentes espaciales a partir de representaciones paramétricas de señales multicanal |
RU2394283C1 (ru) * | 2007-02-14 | 2010-07-10 | ЭлДжи ЭЛЕКТРОНИКС ИНК. | Способы и устройства для кодирования и декодирования объектно-базированных аудиосигналов |
BRPI0802613A2 (pt) | 2007-02-14 | 2011-08-30 | Lg Electronics Inc | métodos e aparelhos para codificação e decodificação de sinais de áudio baseados em objeto |
US20090319279A1 (en) * | 2008-06-19 | 2009-12-24 | Hongwei Kong | Method and system for audio transmit loopback processing in an audio codec |
KR101599884B1 (ko) * | 2009-08-18 | 2016-03-04 | 삼성전자주식회사 | 멀티 채널 오디오 디코딩 방법 및 장치 |
US9025261B1 (en) * | 2013-11-18 | 2015-05-05 | International Business Machines Corporation | Writing and reading data in tape media |
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US4602295A (en) * | 1982-10-23 | 1986-07-22 | Pioneer Electronic Corporation | Recording and reproducing method for video format signal |
US4605963A (en) | 1983-08-15 | 1986-08-12 | Rca Corporation | Reduction of control bits for adaptive sub-nyquist encoder |
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WO1994028633A1 (fr) * | 1993-05-31 | 1994-12-08 | Sony Corporation | Appareil et procede de codage ou decodage de signaux, et support d'enregistrement |
TW327223B (en) * | 1993-09-28 | 1998-02-21 | Sony Co Ltd | Methods and apparatus for encoding an input signal broken into frequency components, methods and apparatus for decoding such encoded signal |
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DE4405659C1 (de) | 1994-02-22 | 1995-04-06 | Fraunhofer Ges Forschung | Verfahren zum kaskadierten Codieren und Decodieren von Audiodaten |
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JP3498375B2 (ja) * | 1994-07-20 | 2004-02-16 | ソニー株式会社 | ディジタル・オーディオ信号記録装置 |
JP3371590B2 (ja) * | 1994-12-28 | 2003-01-27 | ソニー株式会社 | 高能率符号化方法及び高能率復号化方法 |
DE19510226C1 (de) | 1995-03-23 | 1996-11-21 | Sican Gmbh | Verfahren und Einrichtung zur Decodierung von, im Layer 1 oder 2 des MPEG-Formats codierter, digitaler Toninformation |
KR0154387B1 (ko) * | 1995-04-01 | 1998-11-16 | 김주용 | 음성다중 시스템을 적용한 디지탈 오디오 부호화기 |
DE19524688C1 (de) | 1995-07-06 | 1997-01-23 | Siemens Ag | Verfahren zur Dekodierung und Kodierung eines komprimierten Videodatenstroms mit reduziertem Speicherbedarf |
US5867819A (en) * | 1995-09-29 | 1999-02-02 | Nippon Steel Corporation | Audio decoder |
JP3475985B2 (ja) | 1995-11-10 | 2003-12-10 | ソニー株式会社 | 情報符号化装置および方法、情報復号化装置および方法 |
US6049517A (en) | 1996-04-30 | 2000-04-11 | Sony Corporation | Dual format audio signal compression |
DE19754297A1 (de) * | 1997-12-08 | 1999-06-10 | Thomson Multimedia Sa | Audiodatendekoder |
-
1998
- 1998-02-17 TW TW087102188A patent/TW429700B/zh not_active IP Right Cessation
- 1998-02-18 US US09/025,593 patent/US6314391B1/en not_active Expired - Lifetime
- 1998-02-18 SG SG1998000350A patent/SG74613A1/en unknown
- 1998-02-23 ID IDP980249A patent/ID20232A/id unknown
- 1998-02-23 CA CA002230156A patent/CA2230156A1/en not_active Abandoned
- 1998-02-24 MX MX9801478A patent/MX9801478A/es unknown
- 1998-02-25 AU AU56313/98A patent/AU757422B2/en not_active Ceased
- 1998-02-25 RU RU98104700/09A patent/RU2221329C2/ru not_active IP Right Cessation
- 1998-02-25 EP EP98103294A patent/EP0867867A3/en not_active Withdrawn
- 1998-02-26 PL PL98325044A patent/PL325044A1/xx unknown
- 1998-02-26 KR KR1019980006050A patent/KR100565017B1/ko not_active IP Right Cessation
- 1998-02-26 CN CN98108790A patent/CN1201308A/zh active Pending
- 1998-02-26 TR TR1998/00315A patent/TR199800315A3/tr unknown
- 1998-02-26 BR BR9800778-5A patent/BR9800778A/pt not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
ID20232A (id) | 1998-10-29 |
US6314391B1 (en) | 2001-11-06 |
TR199800315A2 (xx) | 1998-09-21 |
KR100565017B1 (ko) | 2006-10-31 |
TR199800315A3 (tr) | 1998-09-21 |
AU5631398A (en) | 1998-09-03 |
EP0867867A3 (en) | 2003-10-01 |
PL325044A1 (en) | 1998-08-31 |
TW429700B (en) | 2001-04-11 |
CA2230156A1 (en) | 1998-08-26 |
KR19980071716A (ko) | 1998-10-26 |
SG74613A1 (en) | 2000-08-22 |
EP0867867A2 (en) | 1998-09-30 |
CN1201308A (zh) | 1998-12-09 |
RU2221329C2 (ru) | 2004-01-10 |
MX9801478A (es) | 1998-11-30 |
AU757422B2 (en) | 2003-02-20 |
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Legal Events
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B09B | Patent application refused [chapter 9.2 patent gazette] |
Free format text: INDEFIRO O PEDIDO DE ACORDO COM O ART. 8O COMBINADO COM O ART. 13 DA LPI |
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B09B | Patent application refused [chapter 9.2 patent gazette] |
Free format text: MANTIDO O INDEFERIMENTO UMA VEZ QUE NAO FOI APRESENTADO RECURSO DENTRO DO PRAZO LEGAL. |
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B15K | Others concerning applications: alteration of classification |
Free format text: PROCEDIMENTO AUTOMATICO DE RECLASSIFICACAO. A CLASSIFICACAO IPC ANTERIOR ERA G10L 9/16. Ipc: H04B 1/66 (2006.01) Ipc: H04B 1/66 (2006.01) |