ES2076748T3 - Procedimiento para reducir el tiempo de acceso. - Google Patents
Procedimiento para reducir el tiempo de acceso.Info
- Publication number
- ES2076748T3 ES2076748T3 ES92903027T ES92903027T ES2076748T3 ES 2076748 T3 ES2076748 T3 ES 2076748T3 ES 92903027 T ES92903027 T ES 92903027T ES 92903027 T ES92903027 T ES 92903027T ES 2076748 T3 ES2076748 T3 ES 2076748T3
- Authority
- ES
- Spain
- Prior art keywords
- disc
- control circuit
- speed
- track
- target track
- 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 - Lifetime
Links
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)
Abstract
EN DISPOSITIVOS REPRODUCTORES QUE EXPLORAN UN DISCO ROTATIVO A UNA VELOCIDAD DE PISTA CONSTANTE, CUANDO SE CAMBIA DESDE UNA PISTA A LA PISTA OBJETIVO, EL CIRCUITO DE CONTROL DE LA VELOCIDAD DE ROTACION SE INTERRUMPE Y LA VELOCIDAD DEL DISCO SE AJUSTA AL VALOR REQUERIDO PARA LA PISTA OBJETIVO MEDIANTE UN SEGUNDO CIRCUITO CONTROL. TAN PRONTO COMO EL EXPLORADOR HA ALCANZADO LA PISTA OBJETIVO, EL CIRCUITO DE CONTROL DE VELOCIDAD DE ROTACION ACTUA UNA VEZ MAS. PARA PODER PRESCINDIR DEL SEGUNDO CIRCUITO DE CONTROL, ANTES DE REPRODUCIR LA RELACION DE AMPLITUD DEL IMPULSO DE LA SEÑAL DE CONTROL PARA EL DISCO EN CUESTION SE ENCUENTRA Y SE ALMACENA YA QUE ES NECESARIO PARA EL GIRO DEL MOTOR ELECTRICO DEL DISCO EN LA VELOCIDAD PRESCRITA PARA UNA PISTA DADA. CUANDO SE CAMBIAN LAS PISTAS, LA RELACION DE AMPLITUD DEL IMPULSO NECESARIO PARA LA PISTA OBJETIVO ES CALCULADO A PARTIR DEL VALOR ALMACENADO. UNA SEÑAL DE CONTROL CON LA RELACION DE AMPLITUD DE IMPULSO CALCULADO SE APLICA AL MOTOR ELECTRICO DE FORMA QUE SE AJUSTA LA VELOCIDAD DEL DISCO AL VALOR NECESARIO PARA LA PISTA OBJETIVO. TAN PRONTO COMO LA PISTA OBJETIVO HA SIDO ALCANZADA EL CIRCUITO DE CONTROL DE VELOCIDAD ACTUA DE NUEVO. UTILIZACION EN REPRODUCTORES CD, REPRODUCTORES DE VIDEO DISCO, REPRODUCTORES DE DISCO DRAW Y DISPOSITIVOS MAGNETOOPTICOS.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4102796A DE4102796A1 (de) | 1991-01-31 | 1991-01-31 | Verfahren zur verkuerzung der zugriffszeit |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2076748T3 true ES2076748T3 (es) | 1995-11-01 |
Family
ID=6424037
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES92903027T Expired - Lifetime ES2076748T3 (es) | 1991-01-31 | 1992-01-28 | Procedimiento para reducir el tiempo de acceso. |
Country Status (11)
Country | Link |
---|---|
EP (2) | EP0498503A1 (es) |
JP (2) | JP3673520B2 (es) |
KR (1) | KR100279704B1 (es) |
CN (1) | CN1036879C (es) |
DE (2) | DE4102796A1 (es) |
ES (1) | ES2076748T3 (es) |
HK (1) | HK112696A (es) |
MX (1) | MX9200429A (es) |
MY (1) | MY111365A (es) |
WO (1) | WO1992014246A1 (es) |
ZA (1) | ZA92717B (es) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
ATE411599T1 (de) * | 2000-04-27 | 2008-10-15 | Koninkl Philips Electronics Nv | Mittel zum lesen eines inhaltsverzeichnisses eines nicht-fertiggestellten optisch lesbaren aufzeichnungsträgers |
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 |
Family Cites Families (12)
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 |
JPH0612587B2 (ja) * | 1984-11-21 | 1994-02-16 | 株式会社日立製作所 | 再生速度制御装置 |
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 EP EP92200275A patent/EP0498503A1/de not_active Ceased
- 1992-01-28 DE DE59202738T patent/DE59202738D1/de not_active Expired - Lifetime
- 1992-01-28 JP JP50303492A patent/JP3673520B2/ja not_active Expired - Fee Related
- 1992-01-28 ES ES92903027T patent/ES2076748T3/es not_active Expired - Lifetime
- 1992-01-28 EP EP92903027A patent/EP0569397B1/de not_active Expired - Lifetime
- 1992-01-28 KR KR1019930702253A patent/KR100279704B1/ko not_active IP Right Cessation
- 1992-01-28 WO PCT/EP1992/000171 patent/WO1992014246A1/de active IP Right Grant
- 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
Also Published As
Publication number | Publication date |
---|---|
EP0498503A1 (de) | 1992-08-12 |
DE4102796A1 (de) | 1992-08-06 |
KR100279704B1 (ko) | 2001-03-02 |
CN1065542A (zh) | 1992-10-21 |
HK112696A (en) | 1996-07-05 |
EP0569397B1 (de) | 1995-06-28 |
WO1992014246A1 (de) | 1992-08-20 |
JPH06504644A (ja) | 1994-05-26 |
JP3786948B2 (ja) | 2006-06-21 |
DE59202738D1 (de) | 1995-08-03 |
ZA92717B (en) | 1992-10-28 |
JP3673520B2 (ja) | 2005-07-20 |
CN1036879C (zh) | 1997-12-31 |
KR930703675A (ko) | 1993-11-30 |
MY111365A (en) | 1999-12-31 |
EP0569397A1 (de) | 1993-11-18 |
MX9200429A (es) | 1992-07-01 |
JP2005166260A (ja) | 2005-06-23 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG2A | Definitive protection |
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