KR100279704B1 - 액세스 타임 감소방법 - Google Patents
액세스 타임 감소방법 Download PDFInfo
- Publication number
- KR100279704B1 KR100279704B1 KR1019930702253A KR930702253A KR100279704B1 KR 100279704 B1 KR100279704 B1 KR 100279704B1 KR 1019930702253 A KR1019930702253 A KR 1019930702253A KR 930702253 A KR930702253 A KR 930702253A KR 100279704 B1 KR100279704 B1 KR 100279704B1
- Authority
- KR
- South Korea
- Prior art keywords
- pulse width
- track
- width ratio
- stored
- control circuit
- 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 - Fee Related
Links
- 238000000034 method Methods 0.000 claims abstract description 9
- 230000009191 jumping Effects 0.000 claims abstract description 8
- 230000003287 optical effect Effects 0.000 description 2
- 230000002730 additional effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
- G11B19/20—Driving; Starting; Stopping; Control thereof
- G11B19/24—Arrangements for providing constant relative speed between record carrier and head
- G11B19/247—Arrangements for providing constant relative speed between record carrier and head using electrical means
Landscapes
- Rotational Drive Of Disk (AREA)
- Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
- Moving Of The Head To Find And Align With The Track (AREA)
Abstract
Description
Claims (6)
- 모터에 의해 구동되며 그 회전속도가 디스크상에 기록된 동기신호에 의해 제어되는 회전 디스크로부터 주사 장치에 의해 일정 선형 속도로 접촉없이 데이터를 판독하는 재생장치에서 액세스 타임을 감소하기 위한 방법에 있어서, 상기 모터는 펄스폭 변조된 신호에 의해 제어되고, 임의의 펄스폭비가 저장되며, 하나의 데이터 트랙으로부터 목표된 트랙으로 점핑할 때 회전수를 제어하기 위하여 제어회로가 개방되고, 상기 저장된 펄스폭비로부터 상기 목표된 트랙에 해당하는 펄스폭비가 산출되며, 상기 모터는 상기 산출된 펄스폭비를 가지는 신호에 의해 제어되며, 그리고 상기 목표된 트랙에 도달할 때 상기 제어회로는 다시 폐쇄되는 것을 특징으로 하는 방법.
- 제1항에 있어서, 상기 주사 장치는 데이터 재생의 시작전에 선택된 데이터 트랙을 주사하고, 상기 모터를 제어하는 펄스폭 변조된 신호의 펄스폭비는 디스크가 상기 선택된 데이터 트랙에 할당된 회전수에 도달할 때 까지 변화되며, 상기 선택된 데이터 트랙에 대하여 얻어진 펄스폭비가 저장되는 것을 특징으로 하는 방법.
- 제1항에 있어서, 상기 디스크의 시작 트랙에 대한 펄스폭비가 CD-플레이어에 대하여 결정되고 저장되는 것을 특징으로 하는 방법.
- 제1항에 있어서, 상기 디스크의 마지막 트랙에 대한 펄스폭비가 CD-플레이어에 대하여 결정되고 저장되는 것을 특징으로 하는 방법.
- 제1항에 있어서, 상기 펄스폭비가 여러개의 데이터 트랙에 대하여 결정되고 저장되며, 저장된 펄스폭비로부터 목표된 트랙에 할당된 펄스폭비가 산출되는 것을 특징으로 하는 방법.
- 제4항에 있어서, 상기 디스크의 시작 및 마지막 트랙의 펄스폭비가 CD-플레이어에 대하여 결정되고 저장되는 것을 특징으로 하는 방법.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEP4102796.5 | 1991-01-31 | ||
DE4102796A DE4102796A1 (de) | 1991-01-31 | 1991-01-31 | Verfahren zur verkuerzung der zugriffszeit |
PCT/EP1992/000171 WO1992014246A1 (de) | 1991-01-31 | 1992-01-28 | Verfahren zur verkürzung der zugriffszeit |
Publications (2)
Publication Number | Publication Date |
---|---|
KR930703675A KR930703675A (ko) | 1993-11-30 |
KR100279704B1 true KR100279704B1 (ko) | 2001-03-02 |
Family
ID=6424037
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019930702253A Expired - Fee Related KR100279704B1 (ko) | 1991-01-31 | 1992-01-28 | 액세스 타임 감소방법 |
Country Status (11)
Country | Link |
---|---|
EP (2) | EP0498503A1 (ko) |
JP (2) | JP3673520B2 (ko) |
KR (1) | KR100279704B1 (ko) |
CN (1) | CN1036879C (ko) |
DE (2) | DE4102796A1 (ko) |
ES (1) | ES2076748T3 (ko) |
HK (1) | HK112696A (ko) |
MX (1) | MX9200429A (ko) |
MY (1) | MY111365A (ko) |
WO (1) | WO1992014246A1 (ko) |
ZA (1) | ZA92717B (ko) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE1008963A3 (nl) * | 1994-11-18 | 1996-10-01 | Philips Electronics Nv | Schijfvormige registratiedrager, alsmede opteken- en/of uitleesinrichting voor optekening/uitlezing van informatie op/van de registratiedrager. |
JP3387709B2 (ja) * | 1995-10-31 | 2003-03-17 | ミネベア株式会社 | 情報記録装置 |
DE19829342A1 (de) * | 1998-07-01 | 2000-01-05 | Alcatel Sa | Parallele Rufzustellung an mehreren TK-Netzzugängen |
WO2001084549A1 (en) * | 2000-04-27 | 2001-11-08 | Koninklijke Philips Electronics N.V. | Means for reading a table of contents of a non-finalized optically readable data carrier |
US8150798B2 (en) | 2006-10-10 | 2012-04-03 | Wells Fargo Bank, N.A. | Method and system for automated coordination and organization of electronic communications in enterprises |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61126665A (ja) * | 1984-11-21 | 1986-06-14 | Hitachi Ltd | 再生速度制御装置 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3365787D1 (en) * | 1982-03-18 | 1986-10-09 | Sanyo Electric Co | Speed control circuit for motor |
US4465977A (en) * | 1982-06-04 | 1984-08-14 | Discovision Associates | Erroneous pulse sequence detector |
JPS59185071A (ja) * | 1983-04-04 | 1984-10-20 | Hitachi Ltd | 情報記録デイスクの再生速度制御装置 |
JPH0812743B2 (ja) * | 1983-06-30 | 1996-02-07 | 株式会社東芝 | ディスク装置 |
JPS6182377A (ja) * | 1984-09-29 | 1986-04-25 | Toshiba Corp | デジタルデイスクプレ−ヤのモ−タ制御装置 |
JPS6196583A (ja) * | 1984-10-17 | 1986-05-15 | Sony Corp | ディスク記録再生装置 |
DE3508423A1 (de) * | 1985-03-09 | 1986-09-11 | Deutsche Thomson-Brandt Gmbh, 7730 Villingen-Schwenningen | System zur ermittlung der abtastgeschwindigkeit von audioplatten mit beruehrungsloser abtastung |
JPH0731872B2 (ja) * | 1986-11-14 | 1995-04-10 | パイオニア株式会社 | 時間軸制御方式 |
US4965682A (en) * | 1988-03-11 | 1990-10-23 | Canon Kabushiki Kaisha | Speed control device |
JPH06101197B2 (ja) * | 1988-10-12 | 1994-12-12 | パイオニア株式会社 | Clvディスク駆動用スピンドルサーボループのループゲイン制御方法 |
KR930007174B1 (ko) * | 1989-03-31 | 1993-07-31 | 가부시기가이샤 도시바 | 픽업 이송 장치 |
-
1991
- 1991-01-31 DE DE4102796A patent/DE4102796A1/de not_active Withdrawn
-
1992
- 1992-01-28 KR KR1019930702253A patent/KR100279704B1/ko not_active Expired - Fee Related
- 1992-01-28 JP JP50303492A patent/JP3673520B2/ja not_active Expired - Fee Related
- 1992-01-28 WO PCT/EP1992/000171 patent/WO1992014246A1/de active IP Right Grant
- 1992-01-28 ES ES92903027T patent/ES2076748T3/es not_active Expired - Lifetime
- 1992-01-28 EP EP92200275A patent/EP0498503A1/de not_active Ceased
- 1992-01-28 EP EP92903027A patent/EP0569397B1/de not_active Expired - Lifetime
- 1992-01-28 DE DE59202738T patent/DE59202738D1/de not_active Expired - Lifetime
- 1992-01-30 MY MYPI92000153A patent/MY111365A/en unknown
- 1992-01-31 MX MX9200429A patent/MX9200429A/es not_active IP Right Cessation
- 1992-01-31 CN CN92101045A patent/CN1036879C/zh not_active Expired - Fee Related
- 1992-01-31 ZA ZA92717A patent/ZA92717B/xx unknown
-
1996
- 1996-06-27 HK HK112696A patent/HK112696A/xx not_active IP Right Cessation
-
2005
- 2005-02-25 JP JP2005052044A patent/JP3786948B2/ja not_active Expired - Fee Related
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61126665A (ja) * | 1984-11-21 | 1986-06-14 | Hitachi Ltd | 再生速度制御装置 |
Also Published As
Publication number | Publication date |
---|---|
HK112696A (en) | 1996-07-05 |
ZA92717B (en) | 1992-10-28 |
WO1992014246A1 (de) | 1992-08-20 |
MX9200429A (es) | 1992-07-01 |
KR930703675A (ko) | 1993-11-30 |
DE59202738D1 (de) | 1995-08-03 |
DE4102796A1 (de) | 1992-08-06 |
CN1065542A (zh) | 1992-10-21 |
CN1036879C (zh) | 1997-12-31 |
JPH06504644A (ja) | 1994-05-26 |
JP3673520B2 (ja) | 2005-07-20 |
JP3786948B2 (ja) | 2006-06-21 |
JP2005166260A (ja) | 2005-06-23 |
EP0569397B1 (de) | 1995-06-28 |
EP0498503A1 (de) | 1992-08-12 |
EP0569397A1 (de) | 1993-11-18 |
MY111365A (en) | 1999-12-31 |
ES2076748T3 (es) | 1995-11-01 |
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