JPH05509431A - アクセスタイムの短縮方法 (トラッキング制御回路) - Google Patents
アクセスタイムの短縮方法 (トラッキング制御回路)Info
- Publication number
- JPH05509431A JPH05509431A JP3505796A JP50579691A JPH05509431A JP H05509431 A JPH05509431 A JP H05509431A JP 3505796 A JP3505796 A JP 3505796A JP 50579691 A JP50579691 A JP 50579691A JP H05509431 A JPH05509431 A JP H05509431A
- Authority
- JP
- Japan
- Prior art keywords
- data
- memory
- group
- scanning device
- record carrier
- 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.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
- G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
- G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
- G11B27/102—Programmed access in sequence to addressed parts of tracks of operating record carriers
- G11B27/105—Programmed access in sequence to addressed parts of tracks of operating record carriers of operating discs
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
- G11B11/10—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
- G11B11/105—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing
- G11B11/1055—Disposition or mounting of transducers relative to record carriers
- G11B11/10556—Disposition or mounting of transducers relative to record carriers with provision for moving or switching or masking the transducers in or out of their operative position
- G11B11/10563—Access of indexed parts
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
- G11B11/10—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
- G11B11/105—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing
- G11B11/10595—Control of operating function
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B21/00—Head arrangements not specific to the method of recording or reproducing
- G11B21/02—Driving or moving of heads
- G11B21/08—Track changing or selecting during transducing operation
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B21/00—Head arrangements not specific to the method of recording or reproducing
- G11B21/02—Driving or moving of heads
- G11B21/08—Track changing or selecting during transducing operation
- G11B21/081—Access to indexed tracks or parts of continuous track
- G11B21/083—Access to indexed tracks or parts of continuous track on discs
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
- G11B7/085—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam into, or out of, its operative position or across tracks, otherwise than during the transducing operation, e.g. for adjustment or preliminary positioning or track change or selection
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
- G11B7/085—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam into, or out of, its operative position or across tracks, otherwise than during the transducing operation, e.g. for adjustment or preliminary positioning or track change or selection
- G11B7/08505—Methods for track change, selection or preliminary positioning by moving the head
-
- 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
- G11B2020/10768—Data buffering arrangements, e.g. recording or playback buffers the usage of the buffer being restricted to a specific kind of data content data by pre-caching the initial portion of songs or other recorded or downloaded data for starting playback instantly
-
- 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
- G11B2220/2525—Magneto-optical [MO] discs
- G11B2220/2529—Mini-discs
-
- 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
- G11B2220/2545—CDs
Abstract
Description
Claims (10)
- 1.記録されたデータが群に分割されている記録担体(CD)でのアクセスタイ ムの短縮方法において、記録担体(CD)を記録および/または再生装置にセッ トした後、 まず、各群の最初のnデータをメモリ(S)に記憶し、 群のデータを読み出す際に、まずメモリ(S)にファイルされているデータを読 み出し、その間に、記録および/または再生装置の走査装置は当該群を探索し、 当該群を発見した後は、メモリ(S)にファイルされているデータではなく、走 査装置(A)から送出されたデータを読み出す、ことを特徴とするアクセスタイ ムの短縮方法。
- 2.記録されたデータが群に分割されている記録担体(CD)でのアクセスタイ ムの短縮方法において、記録担体(CD)を記録および/または再生装置にセッ トした後、 まず、群のうちの一部の最初のnデータをメモリ(S)に記憶し、 群のデータを読み出す際に、まずメモリ(S)にファイルされているデータを読 み出し、その間に、記録および/または再生装置の走査装置は当該群を探索し、 当該群を発見した後は、メモリ(S)にファイルされているデータではなく、走 査装置(A)から送出されたデータを読み出し、 2つの群のデータを読み出す間の休止で、残りの群の最初のnデータをメモリに 記憶する、ことを特徴とするアクセスタイムの短縮方法。
- 3.メモリ(S)から到来するデータ流が、走査装置(A)から到来するデータ 流と同期した後は、メモリ(S)から読み出したデータではなく、走査装置から 送出されたデータを後続の処理のためにさらに伝送する請求の範囲第1項または 第2項記載の方法。
- 4.ディスク(CD)が記録担体である請求の範囲第1項から第3項までのいず れか1項記載の方法。
- 5.各群において、ディスクの少なくとも1回転の間のデータを記憶する請求の 範囲第4項記載の方法。
- 6.数nは記録担体(CD)に記録されている群の数に依存する請求の範囲第1 項から第5項までのいずれか1項記載の方法。
- 7.名群の最初のnデータを記憶するために、バッファメモリとしての高速メモ リと常駐メモリが設けられており、データをまず高速メモリにファイルし、引続 き、常駐メモリに伝送し、 データの読み出しは反対の順序で行う請求の範囲第1項から第6項までのいずれ か1項記載の方法。
- 8.CDプレーヤの場合、インデックス0のデータは記憶しない請求の範囲第1 項から第7項までのいずれか1項記載の方法。
- 9.休止の持続時間を記憶する請求の範囲第8項記載の方法。
- 10.記録担体(CD)を走査する走査装置(A)が同期回路(SY)の第1の 入力側と接続されており、該同期回路の出力側はメモリ(S)と接続されており 、 メモリ(S)の出力側は同期回路(SY)の第2の入力側と接続されており、 当該同期回路の出力側にてチータが取り出され、制御回路(ST)が走査装置( A)と接続されている、請求の範囲第1項から第9項までのいずれか1項に記載 の方法を実施するための装置。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/EP1991/001236 WO1993001596A1 (de) | 1991-07-02 | 1991-07-02 | Verfahren zur verkürzung der zugriffszeit (spurregelkreis) |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH05509431A true JPH05509431A (ja) | 1993-12-22 |
JP3805357B2 JP3805357B2 (ja) | 2006-08-02 |
Family
ID=8165598
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP50579691A Expired - Fee Related JP3805357B2 (ja) | 1991-07-02 | 1991-07-02 | アクセスタイムの短縮方法 (トラッキング制御回路) |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0545945B1 (ja) |
JP (1) | JP3805357B2 (ja) |
KR (1) | KR930702758A (ja) |
ES (1) | ES2124228T3 (ja) |
HK (1) | HK1011446A1 (ja) |
WO (1) | WO1993001596A1 (ja) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2927648B2 (ja) * | 1993-07-16 | 1999-07-28 | シャープ株式会社 | 情報再生方法及び情報記録再生方法 |
US5563714A (en) * | 1994-04-21 | 1996-10-08 | Sony Corporation | Digital signal processing apparatus for recording and reproducing time-base compressed digital image data in an image transmission system |
JPH08195022A (ja) * | 1994-11-14 | 1996-07-30 | Sega Enterp Ltd | ディスク再生装置、カラオケシステム及びディスク再生方法 |
WO1997021220A1 (en) * | 1995-12-01 | 1997-06-12 | Cinax Designs Inc. | Method and apparatus for seamless splicing of digital data streams |
FR2762416B1 (fr) | 1997-04-16 | 1999-05-21 | Thomson Multimedia Sa | Methode et dispositif d'acces a des ensembles de donnees contenus dans une memoire de masse |
JP2001155471A (ja) * | 1999-11-29 | 2001-06-08 | Pioneer Electronic Corp | 記録再生装置 |
KR20030053549A (ko) * | 2001-12-22 | 2003-07-02 | 삼성전자주식회사 | 광 기록 매체 재생 방법 |
WO2005071683A2 (en) * | 2004-01-20 | 2005-08-04 | Koninklijke Philips Electronics N.V. | Allocation and caching method and apparatus for speed-up of interactivity from storage media and corresponding storage media |
KR100619065B1 (ko) * | 2005-01-05 | 2006-08-31 | 삼성전자주식회사 | 챕터별 억세스 시간을 단축하는 디스크 재생방법 및 그 장치 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5848073U (ja) * | 1981-09-24 | 1983-03-31 | ソニー株式会社 | デイスク再生装置 |
DE3619258A1 (de) * | 1986-06-07 | 1987-12-10 | Blaupunkt Werke Gmbh | Compact disc (cd)-spieler |
JPH04238160A (ja) * | 1991-01-21 | 1992-08-26 | Sony Corp | 信号再生装置 |
-
1991
- 1991-07-02 WO PCT/EP1991/001236 patent/WO1993001596A1/de active IP Right Grant
- 1991-07-02 JP JP50579691A patent/JP3805357B2/ja not_active Expired - Fee Related
- 1991-07-02 KR KR1019930700631A patent/KR930702758A/ko active Search and Examination
- 1991-07-02 ES ES91912561T patent/ES2124228T3/es not_active Expired - Lifetime
- 1991-07-02 EP EP91912561A patent/EP0545945B1/de not_active Expired - Lifetime
-
1998
- 1998-11-27 HK HK98112365A patent/HK1011446A1/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
EP0545945A1 (de) | 1993-06-16 |
HK1011446A1 (en) | 1999-07-09 |
EP0545945B1 (de) | 1998-10-21 |
JP3805357B2 (ja) | 2006-08-02 |
ES2124228T3 (es) | 1999-02-01 |
WO1993001596A1 (de) | 1993-01-21 |
KR930702758A (ko) | 1993-09-09 |
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