AR013971A1 - Un dispositivo para la lectura y/o escritura de medios de grabacion opticos, un metodo para la formacion frecuencia dependiente del parametro de una senal especular en dicho dispositivo y un metodo para indentificar el tipo de un medio de grabacion optico mediante una senal especular en dicho dispos - Google Patents
Un dispositivo para la lectura y/o escritura de medios de grabacion opticos, un metodo para la formacion frecuencia dependiente del parametro de una senal especular en dicho dispositivo y un metodo para indentificar el tipo de un medio de grabacion optico mediante una senal especular en dicho disposInfo
- Publication number
- AR013971A1 AR013971A1 ARP980104890A ARP980104890A AR013971A1 AR 013971 A1 AR013971 A1 AR 013971A1 AR P980104890 A ARP980104890 A AR P980104890A AR P980104890 A ARP980104890 A AR P980104890A AR 013971 A1 AR013971 A1 AR 013971A1
- Authority
- AR
- Argentina
- Prior art keywords
- signal
- specular
- frequency
- type
- parameter
- Prior art date
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
- G11B19/02—Control of operating function, e.g. switching from recording to reproducing
- G11B19/12—Control of operating function, e.g. switching from recording to reproducing by sensing distinguishing features of or on records, e.g. diameter end mark
- G11B19/128—Control of operating function, e.g. switching from recording to reproducing by sensing distinguishing features of or on records, e.g. diameter end mark involving the detection of track pitch or recording density
-
- 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
- G11B7/08541—Methods for track change, selection or preliminary positioning by moving the head involving track counting to determine position
-
- 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
- G11B19/02—Control of operating function, e.g. switching from recording to reproducing
- G11B19/12—Control of operating function, e.g. switching from recording to reproducing by sensing distinguishing features of or on records, e.g. diameter end mark
-
- 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
- G11B19/02—Control of operating function, e.g. switching from recording to reproducing
- G11B19/12—Control of operating function, e.g. switching from recording to reproducing by sensing distinguishing features of or on records, e.g. diameter end mark
- G11B2019/121—Control of operating function, e.g. switching from recording to reproducing by sensing distinguishing features of or on records, e.g. diameter end mark by photo-electric sensing
-
- 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
-
- 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
- G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
- G11B7/0941—Methods and circuits for servo gain or phase compensation during operation
Abstract
La invencion se refiere a un dispositivo para la lectura y/o escritura de medios de grabacion opticos, que tiene un medio de exploracion, cuya salidaestá conectada a la entrada de un conversor analogico-digital (3), cuya salida a la vezestá conectada a la entrada de un detector de senal especular(1). El objeto de la invencion es proponer un dispositivo de este tipo que es capaz de generar una senal especular confiable incluso en frecuencias decruce de pistas relativamentealta s. Esto se logra de acuerdo con la invencion por el hecho que el detector de senal especular (1) tiene por lo menos unelemento (11, 12, 24) que es variable como una funcion de frecuencia. El dispositivo de acuerdo a la invencion es, enpartic ular, un reproductor de CDo de DVD. La invencion propone un método para la formacion frecuencia- dependiente de una senal especular de parámetro en tal dispositivo, comprendelos pasos de formar: una senal envolvente de una senal dedatos. La senal envolvente se filtra tomando en cuenta una frecuencia de corte. La senalenvolvente filtrada se compara con un valor umbral. Una senal especular de parámetro se ajusta a un primer valor si la senal envolvente filtradaseencuentra sobre el valor umbral, y a un segundo valor si se encuentra debajo del valor umbral. Se determina la frecuencia de la senal especular. Tambiénse propone un método para identificar el tipo de un medio de grabacion opticomediante una senal espe cular en dicho dispositivo y obtenida mediantedicho método de formacion de frecuencia dependiente.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19743068 | 1997-09-30 | ||
DE19746990A DE19746990A1 (de) | 1997-09-30 | 1997-10-24 | Gerät zum Lesen und/oder Beschreiben optischer Aufzeichnungsträger |
Publications (1)
Publication Number | Publication Date |
---|---|
AR013971A1 true AR013971A1 (es) | 2001-01-31 |
Family
ID=7844055
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ARP980104890A AR013971A1 (es) | 1997-09-30 | 1998-09-30 | Un dispositivo para la lectura y/o escritura de medios de grabacion opticos, un metodo para la formacion frecuencia dependiente del parametro de una senal especular en dicho dispositivo y un metodo para indentificar el tipo de un medio de grabacion optico mediante una senal especular en dicho dispos |
Country Status (12)
Country | Link |
---|---|
US (2) | US6807136B1 (es) |
EP (1) | EP1019909B1 (es) |
JP (1) | JP2001518676A (es) |
KR (2) | KR100564148B1 (es) |
CN (1) | CN1125455C (es) |
AR (1) | AR013971A1 (es) |
AU (1) | AU9438998A (es) |
BR (1) | BR9812566B1 (es) |
DE (3) | DE19746990A1 (es) |
ID (1) | ID28079A (es) |
MY (1) | MY119129A (es) |
WO (1) | WO1999017287A1 (es) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3788504B2 (ja) * | 2001-07-30 | 2006-06-21 | 船井電機株式会社 | 光ディスク判別方法及び光ディスク装置 |
JP3829724B2 (ja) * | 2001-12-21 | 2006-10-04 | ソニー株式会社 | 記録媒体、記録方法および装置、再生装置および方法、ならびに、データ判別方法 |
TWI298156B (en) * | 2002-10-24 | 2008-06-21 | Tian Holdings Llc | Discrimination method for light storage device |
CN100412972C (zh) * | 2003-09-15 | 2008-08-20 | 宇田控股有限公司 | 光盘片格式的辨识方法 |
US20050226114A1 (en) | 2004-03-31 | 2005-10-13 | Stanley Liow | Method and apparatus for generating absolute time in pregroove data |
US7626907B2 (en) * | 2004-05-25 | 2009-12-01 | Ricky Chang | Method and apparatus for determining type of digital versatile disc |
US7570561B2 (en) * | 2004-05-25 | 2009-08-04 | Bryan Tai | Method for determining type of digital versatile discs |
US7746745B2 (en) * | 2004-05-25 | 2010-06-29 | Ricky Chang | Method for determining the type of digital versatile disc |
EP1946311A2 (en) * | 2005-10-31 | 2008-07-23 | Koninklijke Philips Electronics N.V. | Recording apparatus and recording method |
CN101000785B (zh) * | 2006-01-13 | 2010-05-12 | 鸿富锦精密工业(深圳)有限公司 | 盘片种类识别方法与系统 |
JP2007220258A (ja) * | 2006-02-20 | 2007-08-30 | Rohm Co Ltd | ディスク判別方法、ディスク制御回路ならびに、ディスク装置 |
US20080117791A1 (en) * | 2006-11-20 | 2008-05-22 | Atmel Corporation | Optical media identifications |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS633471A (ja) | 1986-06-23 | 1988-01-08 | Sumitomo Electric Ind Ltd | タンデム構造太陽電池 |
JPS63103471A (ja) | 1986-10-20 | 1988-05-09 | Fujitsu General Ltd | コンパチブル光デイスク装置の光デイスク判別回路 |
US5031166A (en) * | 1988-01-25 | 1991-07-09 | Laser Magnetic Storage International Company | Optical disk tracking and seeking systems and specific track formats using discontinuities and circuitry therefor |
JP2646130B2 (ja) * | 1989-03-13 | 1997-08-25 | パイオニア株式会社 | トラックジャンプ駆動装置 |
JPH0373422A (ja) * | 1989-05-18 | 1991-03-28 | Nec Corp | 光ディスク装置の和信号処理回路 |
JP3003338B2 (ja) * | 1991-10-29 | 2000-01-24 | ソニー株式会社 | トラック横切り検出回路及び再生装置 |
KR100272118B1 (ko) * | 1991-11-06 | 2000-11-15 | 이데이 노부유끼 | 디지탈 서보 제어 회로를 구비한 광디스크 플레이어 및 트래킹 서보 회로 |
JPH0836827A (ja) | 1994-07-25 | 1996-02-06 | Victor Co Of Japan Ltd | 光ディスク再生装置における光ディスクの判別装置 |
JPH0917106A (ja) | 1995-06-28 | 1997-01-17 | Aiwa Co Ltd | ディスク判別装置 |
KR0154736B1 (ko) * | 1995-08-07 | 1998-12-15 | 김광호 | 멀티디스크 재생 가능한 광디스크 기록재생 장치에서 리드 인 타임 최소화 방법 |
JPH0963067A (ja) | 1995-08-25 | 1997-03-07 | Sony Corp | トラックカウントパルスの発生装置 |
US5587981A (en) | 1995-09-05 | 1996-12-24 | Kamatani; Yasuo | Multi-standard optical disk reading method having distinction process |
KR0183145B1 (ko) * | 1995-09-30 | 1999-04-15 | 김광호 | 광 디스크 판별장치 및 방법 |
JPH09330554A (ja) * | 1996-05-28 | 1997-12-22 | Pioneer Electron Corp | 光ディスク再生装置 |
KR100192418B1 (ko) * | 1996-07-13 | 1999-06-15 | 구자홍 | 트랙 횡단신호 검출회로 |
US6400660B1 (en) * | 1997-10-28 | 2002-06-04 | Samsung Electronics Co., Ltd. | Optical disk and apparatus for reading the same based upon the length of a mirror region |
-
1997
- 1997-10-24 DE DE19746990A patent/DE19746990A1/de not_active Withdrawn
-
1998
- 1998-08-31 CN CN98809609A patent/CN1125455C/zh not_active Expired - Fee Related
- 1998-08-31 EP EP98947490A patent/EP1019909B1/de not_active Expired - Lifetime
- 1998-08-31 BR BRPI9812566-4A patent/BR9812566B1/pt not_active IP Right Cessation
- 1998-08-31 DE DE59802981T patent/DE59802981D1/de not_active Expired - Lifetime
- 1998-08-31 US US09/508,804 patent/US6807136B1/en not_active Expired - Fee Related
- 1998-08-31 WO PCT/EP1998/005527 patent/WO1999017287A1/de active IP Right Grant
- 1998-08-31 AU AU94389/98A patent/AU9438998A/en not_active Abandoned
- 1998-08-31 KR KR1020007003340A patent/KR100564148B1/ko not_active IP Right Cessation
- 1998-08-31 ID IDW20000606D patent/ID28079A/id unknown
- 1998-08-31 JP JP2000514268A patent/JP2001518676A/ja active Pending
- 1998-09-04 KR KR1019980036572A patent/KR100638604B1/ko not_active IP Right Cessation
- 1998-09-11 MY MYPI98004162A patent/MY119129A/en unknown
- 1998-09-17 DE DE69810865T patent/DE69810865T2/de not_active Expired - Lifetime
- 1998-09-30 AR ARP980104890A patent/AR013971A1/es active IP Right Grant
-
2004
- 2004-08-31 US US10/930,261 patent/US7061846B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
BR9812566B1 (pt) | 2010-02-09 |
KR19990029559A (ko) | 1999-04-26 |
EP1019909B1 (de) | 2002-01-30 |
CN1272206A (zh) | 2000-11-01 |
KR100564148B1 (ko) | 2006-03-27 |
DE69810865T2 (de) | 2003-06-18 |
US20050117482A1 (en) | 2005-06-02 |
MY119129A (en) | 2005-03-31 |
WO1999017287A1 (de) | 1999-04-08 |
EP1019909A1 (de) | 2000-07-19 |
CN1125455C (zh) | 2003-10-22 |
DE59802981D1 (de) | 2002-03-14 |
DE69810865D1 (de) | 2003-02-27 |
KR100638604B1 (ko) | 2007-03-02 |
JP2001518676A (ja) | 2001-10-16 |
BR9812566A (pt) | 2000-08-01 |
AU9438998A (en) | 1999-04-23 |
DE19746990A1 (de) | 1999-04-01 |
US7061846B2 (en) | 2006-06-13 |
KR20010015648A (ko) | 2001-02-26 |
ID28079A (id) | 2001-05-03 |
US6807136B1 (en) | 2004-10-19 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG | Grant, registration |