KR100235438B1 - 광디스크의 오디오재생신호 보상처리방법 및 장치 - Google Patents
광디스크의 오디오재생신호 보상처리방법 및 장치 Download PDFInfo
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- KR100235438B1 KR100235438B1 KR1019970003399A KR19970003399A KR100235438B1 KR 100235438 B1 KR100235438 B1 KR 100235438B1 KR 1019970003399 A KR1019970003399 A KR 1019970003399A KR 19970003399 A KR19970003399 A KR 19970003399A KR 100235438 B1 KR100235438 B1 KR 100235438B1
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- 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
- G11B20/16—Digital recording or reproducing using non self-clocking codes, i.e. the clock signals are either recorded in a separate clocking track or in a combination of several information tracks
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- 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
- G11B20/10527—Audio or video recording; Data buffering arrangements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/439—Processing of audio elementary streams
- H04N21/4392—Processing of audio elementary streams involving audio buffer management
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- 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
- G11B20/10527—Audio or video recording; Data buffering arrangements
- G11B2020/1062—Data buffering arrangements, e.g. recording or playback buffers
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- 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
- G11B20/10527—Audio or video recording; Data buffering arrangements
- G11B2020/1062—Data buffering arrangements, e.g. recording or playback buffers
- G11B2020/10675—Data buffering arrangements, e.g. recording or playback buffers aspects of buffer control
- G11B2020/1074—Data buffering arrangements, e.g. recording or playback buffers aspects of buffer control involving a specific threshold value
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- 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
- G11B20/10527—Audio or video recording; Data buffering arrangements
- G11B2020/1062—Data buffering arrangements, e.g. recording or playback buffers
- G11B2020/1075—Data buffering arrangements, e.g. recording or playback buffers the usage of the buffer being restricted to a specific kind of data
- G11B2020/10759—Data buffering arrangements, e.g. recording or playback buffers the usage of the buffer being restricted to a specific kind of data content data
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B2220/00—Record carriers by type
- G11B2220/20—Disc-shaped record carriers
- G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
- G11B2220/2537—Optical discs
- G11B2220/2562—DVDs [digital versatile discs]; Digital video discs; MMCDs; HDCDs
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/84—Television signal recording using optical recording
- H04N5/85—Television signal recording using optical recording on discs or drums
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/79—Processing of colour television signals in connection with recording
- H04N9/80—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback
- H04N9/804—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback involving pulse code modulation of the colour picture signal components
- H04N9/806—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback involving pulse code modulation of the colour picture signal components with processing of the sound signal
- H04N9/8063—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback involving pulse code modulation of the colour picture signal components with processing of the sound signal using time division multiplex of the PCM audio and PCM video signals
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- Engineering & Computer Science (AREA)
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- Signal Processing For Digital Recording And Reproducing (AREA)
Abstract
Description
Claims (12)
- 광디스크로 부터 재생된 오디오데이터가 정상적인 오디오데이터인지를 검출하고, 인밸리드한 데이터일 때 정상적인 오디오데이터로 조절하는 단계와; 상기 조절되는 오디오데이터를 메모리에 저장하고, 상기 메모리에 저장된 데이터량을 감시하는 단계와; 상기 감시단계에서 메모리의 오버플로우 발생시 메모리로 데이터 전송 중지를 요구하고, 메모리의 언더플로우 발생시 메모리로 데이터 전송을 요구하는 단계와; 상기 단계에서 메모리로 부터 출력되는 오디오데이터를 디코딩해서 출력하는 단계를 포함하여 이루어진 광디스크의 오디오재생신호 보상처리방법.
- 제1항에 있어서, 상기 인밸리드한 데이터는 더미데이터를 추가해서 데이터를 조절하는 것을 특징으로 하는 광디스크의 오디오재생신호 보상처리방법.
- 제1항에 있어서, 상기 인밸리드한 데이터는 불필요한 데이터 제거해서 데이터를 조절하는 것을 특징으로 하는 광디스크의 오디오재생신호 보상처리방법.
- 제1항에 있어서, 상기 메모리의 오버플로우 발생에 의한 신호 처리는, 메모리로 데이터 전송 중지를 요구하는 단계와; 메모리의 데이터 라이트 인에이블을 오프시키는단계를 포함하는 것을 특징으로 하는 광디스크의 오디오재생신호 보상처리방법.
- 제1항에 있어서, 상기 메모리의 언더플로우 발생에 의한 신호 처리는, 버퍼에 데이터를 저장하는 단계와; 데이터 전송을 요구하는 단계와; 전송되는 데이터가 있는 지를 판단하는 단계와; 상기 단계에서 전송되는 데이터가 있을 때는 전송되는 오디오데이터를 메모리에 라이트시키고, 전송되는 데이터 없을 때는 상기 버퍼에 저장된 데이터를 메모리에 반복 라이트 시키는 단계를 포함하여 이루어진 것을 특징으로 하는 광디스크의 오디오재생신호 보상처리방법.
- 입력되는 오디오재생신호의 비트 스트림을 분석하는 비트스트림 분석수단과; 상기 비트 스트림 분석수단의 출력신호를 임시 저장하는 메모리수단과; 상기 메모리수단에 저장된 데이터량을 감시하는 저장 데이터량 검출수단과; 상기 저장 데이터량 검출수단의 출력신호에 의해서 데이터 전송을 요구하거나 또는 데이터 전송 중지를 요구하며, 동시에 상기 메모리의 데이터 리드/라이트 동작을 제어하는 제어수단과; 상기 메모리수단으로 부터 출력되는 오디오데이터를 디코딩시켜서 출력하는 디코딩 수단을 포함하여 구성되는 광디스크의 오디오재생신호 보상처리장치.
- 제6항에 있어서, 상기 저장 데이터량 검출부는, 상기 메모리에 저장된 최종 어드레스에 따라서 상기 메모리의 저장량을 검출하는 것을 특징으로 하는 광디스크의 오디오재생신호 보상처리장치.
- 제6항에 있어서, 상기 제어수단은, 오디오신호를 정상적인 오디오데이터로 조절하기 위한 수단을 더 포함하는 것을 특징으로 하는 광디스크의 오디오재생신호 보상처리장치.
- 광디스크로 부터 재생된 오디오신호의 바이트를 카운팅 하는 바이트 카운터와; 재생된 오디오신호의 헤더를 검출하는 헤더 검출수단과; 상기 헤더 검출수단에서 다음의 헤더가 검출될 때까지의 상기 바이트 카운터에서 카운팅된 데이터에 의하여 인밸리드한 데이터인지를 검출하는 인밸리드데이터 검출수단과; 광디스크로 부터 재생되는 오디오신호를 임시 저장하는 메모리수단과; 상기 인밸리드데이터 검출수단의 출력신호에 따라서 상기 메모리수단에 저장되는 오디오데이터에 더미 데이터를 추가해서 저장하거나, 상기 메모리수단의 데이터 라이트 인에이블을 오프시키는 제어수단을 포함하여 구성되는 광디스크의 오디오신호 보상처리장치.
- 제9항에 있어서, 상기 제어수단의 제어하에 더미 데이터를 발생하여 상기 메모리수단으로 출력하는 더미 데이터 발생수단을 더 포함하여 구성되는 광디스크의 오디오신호 보상처리장치.
- 광디스크로 부터 비디오신호/오디오신호를 재생하기 위한 재생수단과; 상기 재생수단을 제어해서 광디스크의 재생을 제어하고, 상기 재생수단의 출력신호로 부터 오디오신호를 분리하는 제어수단과; 상기 제어수단의 제어하에 입력되는 오디오신호량에 따라서 상기 제어수단으로 오디오신호의 전송요구 또는 전송 중지를 요구하고, 입력된 오디오신호를 디코딩해서 출력하는 오디오복호화수단과, 상기 오디오복호화수단의 출력신호를 아날로그신호로 변환해서 출력하는 디지털/아날로그변환수단을 포함하여 구성되는 광디스크재생장치.
- 제11항에 있어서, 상기 오디오복호화수단은, 오디오신호를 정상적인 오디오데이터로 조절하기 위한 수단을 더 포함하는 것을 특징으로 하는 광디스크재생장치.
Priority Applications (9)
Application Number | Priority Date | Filing Date | Title |
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KR1019970003399A KR100235438B1 (ko) | 1997-02-04 | 1997-02-04 | 광디스크의 오디오재생신호 보상처리방법 및 장치 |
US09/866,728 US6408040B2 (en) | 1997-02-04 | 2001-05-30 | Method and apparatus for compensating reproduced audio signals of an optical disc |
US10/055,948 US6542564B2 (en) | 1997-02-04 | 2002-01-28 | Method and apparatus for compensating reproduced audio signals of an optical disc |
US11/932,893 USRE42792E1 (en) | 1997-02-04 | 2007-10-31 | Method and apparatus for compensating reproduced audio signals of an optical disc |
US11/932,846 USRE42829E1 (en) | 1997-02-04 | 2007-10-31 | Method and apparatus for compensating reproduced audio signals of an optical disc |
US11/930,729 USRE42791E1 (en) | 1997-02-04 | 2007-10-31 | Method and apparatus for compensating reproduced audio signals of an optical disc |
US12/850,602 USRE43478E1 (en) | 1997-02-04 | 2010-08-04 | Method and apparatus for compensating reproduced audio signals of an optical disc |
US12/850,600 USRE43496E1 (en) | 1997-02-04 | 2010-08-04 | Method and apparatus for compensating reproduced audio signals of an optical disc |
US12/850,593 USRE43495E1 (en) | 1997-02-04 | 2010-08-04 | Method and apparatus for compensating reproduced audio signals of an optical disc |
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KR1019970003399A KR100235438B1 (ko) | 1997-02-04 | 1997-02-04 | 광디스크의 오디오재생신호 보상처리방법 및 장치 |
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KR19980067392A KR19980067392A (ko) | 1998-10-15 |
KR100235438B1 true KR100235438B1 (ko) | 1999-12-15 |
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US (8) | US6408040B2 (ko) |
KR (1) | KR100235438B1 (ko) |
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KR0166210B1 (ko) * | 1995-06-30 | 1999-03-20 | 김주용 | 디지탈 비데오 디스크용 데이터 디코더 장치 및 방법 |
EP0790615A3 (en) * | 1996-02-19 | 1998-04-15 | Sony Corporation | Data decoding apparatus and method and data reproduction apparatus |
US5983278A (en) | 1996-04-19 | 1999-11-09 | Lucent Technologies Inc. | Low-loss, fair bandwidth allocation flow control in a packet switch |
JPH1079922A (ja) * | 1996-09-03 | 1998-03-24 | Mitsubishi Electric Corp | 画像音声復号再生装置 |
US5778218A (en) | 1996-12-19 | 1998-07-07 | Advanced Micro Devices, Inc. | Method and apparatus for clock synchronization across an isochronous bus by adjustment of frame clock rates |
-
1997
- 1997-02-04 KR KR1019970003399A patent/KR100235438B1/ko not_active Expired - Fee Related
-
2001
- 2001-05-30 US US09/866,728 patent/US6408040B2/en not_active Expired - Lifetime
-
2002
- 2002-01-28 US US10/055,948 patent/US6542564B2/en not_active Ceased
-
2007
- 2007-10-31 US US11/932,846 patent/USRE42829E1/en not_active Expired - Lifetime
- 2007-10-31 US US11/930,729 patent/USRE42791E1/en not_active Expired - Lifetime
- 2007-10-31 US US11/932,893 patent/USRE42792E1/en not_active Expired - Lifetime
-
2010
- 2010-08-04 US US12/850,600 patent/USRE43496E1/en not_active Expired - Lifetime
- 2010-08-04 US US12/850,602 patent/USRE43478E1/en not_active Expired - Lifetime
- 2010-08-04 US US12/850,593 patent/USRE43495E1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US20020110366A1 (en) | 2002-08-15 |
USRE43496E1 (en) | 2012-06-26 |
US6408040B2 (en) | 2002-06-18 |
US20010029446A1 (en) | 2001-10-11 |
USRE42791E1 (en) | 2011-10-04 |
USRE43495E1 (en) | 2012-06-26 |
USRE42829E1 (en) | 2011-10-11 |
US6542564B2 (en) | 2003-04-01 |
KR19980067392A (ko) | 1998-10-15 |
USRE42792E1 (en) | 2011-10-04 |
USRE43478E1 (en) | 2012-06-19 |
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