GB2000612B

GB2000612B – Optical reader for information discs equipped with means for automatic access to the information
– Google Patents

GB2000612B – Optical reader for information discs equipped with means for automatic access to the information
– Google Patents
Optical reader for information discs equipped with means for automatic access to the information

Info

Publication number
GB2000612B

GB2000612B
GB7828521A
GB7828521A
GB2000612B
GB 2000612 B
GB2000612 B
GB 2000612B
GB 7828521 A
GB7828521 A
GB 7828521A
GB 7828521 A
GB7828521 A
GB 7828521A
GB 2000612 B
GB2000612 B
GB 2000612B
Authority
GB
United Kingdom
Prior art keywords
information
optical reader
automatic access
discs equipped
information discs
Prior art date
1977-07-01
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

Application number
GB7828521A
Other versions

GB2000612A
(en

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Thomson-Brandt SA

Original Assignee
Thomson-Brandt SA
Priority date (The priority date 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 date listed.)
1977-07-01
Filing date
1978-06-30
Publication date
1982-01-13

1978-06-30
Application filed by Thomson-Brandt SA
filed
Critical
Thomson-Brandt SA

1979-01-10
Publication of GB2000612A
publication
Critical
patent/GB2000612A/en

1982-01-13
Application granted
granted
Critical

1982-01-13
Publication of GB2000612B
publication
Critical
patent/GB2000612B/en

Status
Expired
legal-status
Critical
Current

Links

Espacenet

Global Dossier

Discuss

Classifications

G—PHYSICS

G05—CONTROLLING; REGULATING

G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS

G05B19/00—Programme-control systems

G05B19/02—Programme-control systems electric

G05B19/18—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form

G05B19/19—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by positioning or contouring control systems, e.g. to control position from one programmed point to another or to control movement along a programmed continuous path

G05B19/39—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by positioning or contouring control systems, e.g. to control position from one programmed point to another or to control movement along a programmed continuous path using a combination of the means covered by at least two of the preceding sub-groups G05B19/21, G05B19/27, and G05B19/33

G—PHYSICS

G11—INFORMATION STORAGE

G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER

G11B17/00—Guiding record carriers not specifically of filamentary or web form, or of supports therefor

G11B17/005—Programmed access to indexed parts of tracks of operating discs, by guiding the disc

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

G11B7/08517—Methods for track change, selection or preliminary positioning by moving the head with tracking pull-in only

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

G05—CONTROLLING; REGULATING

G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS

G05B2219/00—Program-control systems

G05B2219/30—Nc systems

G05B2219/37—Measurements

G05B2219/37275—Laser, interferometer

GB7828521A
1977-07-01
1978-06-30
Optical reader for information discs equipped with means for automatic access to the information

Expired

GB2000612B
(en)

Applications Claiming Priority (1)

Application Number
Priority Date
Filing Date
Title

FR7720373A

FR2396379A1
(en)

1977-07-01
1977-07-01

OPTICAL INFORMATION DISC READER EQUIPPED WITH AN AUTOMATIC INFORMATION ACCESS DEVICE

Publications (2)

Publication Number
Publication Date

GB2000612A

GB2000612A
(en)

1979-01-10

GB2000612B
true

GB2000612B
(en)

1982-01-13

Family
ID=9192885
Family Applications (1)

Application Number
Title
Priority Date
Filing Date

GB7828521A
Expired

GB2000612B
(en)

1977-07-01
1978-06-30
Optical reader for information discs equipped with means for automatic access to the information

Country Status (5)

Country
Link

US
(1)

US4138663A
(en)

CA
(1)

CA1109148A
(en)

DE
(1)

DE2828845A1
(en)

FR
(1)

FR2396379A1
(en)

GB
(1)

GB2000612B
(en)

Families Citing this family (69)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

JPS5913101B2
(en)

*

1977-12-16
1984-03-27
株式会社日立製作所

Random access method

EP0181436B1
(en)

*

1978-06-30
1989-06-14
Discovision Associates
Method and apparatus for information retrieval from an optically readable storage medium

USRE32574E
(en)

*

1978-06-30
1988-01-05
Discovision Associates
Method and apparatus for information retrieval from an optically readable storage medium

US4375091A
(en)

*

1978-06-30
1983-02-22
Discovision Associates
Method and apparatus for information retrieval from an optically readable storage medium

US4506355A
(en)

*

1981-08-24
1985-03-19
Discovision Associates
Method and apparatus for information retrieval from an optically readable storage medium

US4539664A
(en)

*

1978-08-25
1985-09-03
Matsushita Electric Industrial Co., Ltd.
Control system for optical information signal reproduction device

NL7810386A
(en)

*

1978-10-17
1980-04-21
Philips Nv

OPTICAL READING DEVICE FOR READING A DISC REGISTRATION CARRIER.

JPS5936347B2
(en)

*

1978-12-11
1984-09-03
日本ビクター株式会社

information record carrier

JPS5611673A
(en)

*

1979-07-03
1981-02-05
Pioneer Video Corp
Address information retrieval method in information recording medium reproducing unit

JPS6048809B2
(en)

*

1979-10-16
1985-10-29
パイオニアビデオ株式会社

Tracking servo retraction device in information reading device

US4340950A
(en)

*

1979-10-12
1982-07-20
Universal Pioneer Corporation
Video disc player

JPS6331218Y2
(en)

*

1979-11-08
1988-08-22

US4321622A
(en)

*

1979-11-26
1982-03-23
Mcdonnell Douglas Corporation
Video track transfer system and method

NL8003305A
(en)

*

1980-06-06
1982-01-04
Philips Nv

Apparatus for locating a desired information track.

US4484319A
(en)

*

1980-09-19
1984-11-20
Matsushita Electric Industrial Co., Ltd.
Apparatus for locating a track on disc-like optical information carriers

JPS5755570A
(en)

*

1980-09-22
1982-04-02
Victor Co Of Japan Ltd
Tracking control circuit of rotary information recording medium reproducer

US4406000A
(en)

*

1981-03-31
1983-09-20
Discovision Associates
Tracking system for optical record medium

US4414655A
(en)

*

1981-03-31
1983-11-08
Discovision Associates
Scanning beam control system

JPS57176568A
(en)

*

1981-04-22
1982-10-29
Pioneer Electronic Corp
Relative movement controller between pickup and recording track for information reader

JPS57198586A
(en)

*

1981-05-28
1982-12-06
Sony Corp
Digital disc reproducing device

JPS58122676A
(en)

*

1982-01-16
1983-07-21
Sony Corp
Track jump device for disc

US4443869A
(en)

*

1981-09-28
1984-04-17
Rca Corporation
Track jump servo system for disc player

KR880000999B1
(en)

*

1981-11-25
1988-06-10
미쓰다 가쓰시게
Optical memory apparatus

DE3300951C2
(en)

*

1982-01-16
1994-10-27
Sony Corp

Method and device for quickly moving a scanner of an information signal reproducing device

US4435797A
(en)

1982-02-17
1984-03-06
Burroughs Corporation
Optical memory system having track following and seeking capabilities

US4432082A
(en)

*

1982-02-17
1984-02-14
Burroughs Corporation
Optical memory system having a long seek capability

US4489406A
(en)

*

1982-02-17
1984-12-18
Burroughs Corporation
Optical memory system having a short seek capability

US4432083A
(en)

*

1982-02-17
1984-02-14
Burroughs Corporation
Optical memory system having track following

FR2523351B1
(en)

*

1982-03-09
1989-07-13
Thomson Csf

OPTICAL HEAD IN A RECORDING-READING DEVICE OF AN INFORMATION MEDIUM

US4674076A
(en)

*

1982-05-19
1987-06-16
Burroughs Corporation
Optical memory system having improved positioning and focusing control circuitry

DE3368794D1
(en)

*

1982-05-19
1987-02-05
Burroughs Corp
Optical memory system having improved positioning and focusing control circuitry

JPS5972692A
(en)

*

1982-10-20
1984-04-24
Canon Inc
Controller of picture signal reproducer

NL8303046A
(en)

*

1983-09-01
1985-04-01
Philips Nv

DEVICE FOR READING A DISC REGISTRATION CARRIER.

US4677602A
(en)

*

1983-04-05
1987-06-30
Pioneer Electronic Corporation
Device for controlling recording track jump operations with over-run correction

NL8303029A
(en)

*

1983-08-31
1985-03-18
Philips Nv

DEVICE FOR READING A DISC-SHAPED OPTICAL RECORD CARRIER.

JP2510410B2
(en)

*

1983-10-27
1996-06-26
パイオニア株式会社

Information selection device for disk player

US4594701A
(en)

*

1983-10-31
1986-06-10
Rca Corporation
System for recording data on spiral track

JPS60145576A
(en)

*

1984-01-10
1985-08-01
Canon Inc
Seeking system of optical information recording and reproducing device

JPH0690804B2
(en)

*

1984-01-20
1994-11-14
株式会社日立製作所

Optical information recording / reproducing device

DE3515472A1
(en)

*

1984-04-27
1985-11-07
Pioneer Electronic Corp., Tokio/Tokyo

AUTOMATIC TURNTABLE

JPS60254464A
(en)

*

1984-05-31
1985-12-16
Fuji Photo Film Co Ltd
Reproducing device of rotary recording body

JPS60256927A
(en)

*

1984-06-01
1985-12-18
Nippon Gakki Seizo Kk
Read controller of optical disc reproducing device

JPS6139239A
(en)

*

1984-07-28
1986-02-25
Sony Corp
Optical disc player

JP2644720B2
(en)

*

1985-02-25
1997-08-25
株式会社日立製作所

Truck retracting method

JPH0612572B2
(en)

*

1985-03-08
1994-02-16
オリンパス光学工業株式会社

Optical information recording / reproducing device

KR940002001B1
(en)

*

1985-03-22
1994-03-12
가부시끼가이샤 히다찌세이사꾸쇼
Access method and the information checking device

DE3618137A1
(en)

*

1985-05-31
1986-12-11
Hitachi, Ltd., Tokio/Tokyo

DISK ACCESS METHOD AND DISK STORAGE

DE3520189A1
(en)

*

1985-06-05
1986-12-11
Deutsche Thomson-Brandt Gmbh, 7730 Villingen-Schwenningen

METHOD FOR JUMPING IN TRACK SEARCH PROCESSES AND CIRCUIT ARRANGEMENT FOR IMPLEMENTING THE METHOD

FR2597248B1
(en)

*

1985-11-27
1988-05-13
Thomson Alcatel Gigadisc

PREGRAVED INFORMATION MEDIUM AND ITS SAMPLE ACCESS OPTICAL EXPLORATION DEVICE

KR870006556A
(en)

*

1985-12-13
1987-07-13
미쓰다 가쓰시게

Tracking Servo Control

US4727528A
(en)

*

1986-04-22
1988-02-23
Sri International
Optical media tracking method and apparatus for optical storage system

EP0261608A3
(en)

*

1986-09-20
1990-05-30
Csk Corporation
Optical recording medium

DE3886422T2
(en)

*

1987-02-27
1994-05-19
Sony Corp

DISK RECORDING DEVICE.

JPH0748257B2
(en)

*

1987-05-07
1995-05-24
富士通株式会社

Multi-track jump circuit for optical disk device

JP2565205B2
(en)

*

1987-08-20
1996-12-18
ソニー株式会社

Optical disk device

US4858041A
(en)

*

1987-10-20
1989-08-15
Mattel, Inc.
Tracking servo control

JP2892002B2
(en)

*

1987-11-20
1999-05-17
ソニー株式会社

Track access control device and track access method

JPH01148100A
(en)

*

1987-12-01
1989-06-09
Matsushita Electric Ind Co Ltd
Position controller

US4897827A
(en)

*

1987-12-12
1990-01-30
U.S. Philips Corporation
Video disc player with rapid track access means

US4912753A
(en)

*

1988-04-04
1990-03-27
Hughes Aircraft Company
Robot axis controller employing feedback and open loop (feedforward) control

JP2573301B2
(en)

*

1988-04-22
1997-01-22
株式会社東芝

Disk unit

KR950006419B1
(en)

*

1990-04-16
1995-06-15
삼성전자주식회사
High-speed search system in photo recording and displaying unit

FR2723243B1
(en)

*

1994-07-26
1996-09-06
Thomson Csf

DEVICE FOR RECORDING AND / OR PLAYING MAGNETIC HEADS AND ITS MANUFACTURING METHOD

FR2739965B1
(en)

*

1995-10-17
1997-11-07
Thomson Csf

LIGHT TRANSCEIVER DEVICE AND OPTICAL READING SYSTEM

CN1072825C
(en)

*

1995-11-20
2001-10-10
三星电子株式会社
Disk drive having eccentricity correction device

FR2786345B1
(en)

1998-11-24
2001-02-09
Thomson Csf

QUANTUM ENCRYPTION DEVICE

US6744711B1
(en)

2000-06-20
2004-06-01
Discovision Associates
Method and apparatus for a high-speed search of an optical medium

US7149173B2
(en)

*

2000-10-17
2006-12-12
Thales
Medium for recording optically readable data, method for making same and optical system reproducing said data

FR2824905B1
(en)

*

2001-05-15
2003-08-29
Thomson Csf

FIBER OPTIC GYROMETER

Family Cites Families (12)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

GB1329662A
(en)

*

1971-05-07
1973-09-12
Eg C Inc
Memory system

NL7315419A
(en)

*

1973-11-10
1975-05-13
Philips Nv

DEVICE FOR READING A DISK-SHAPED REGISTRATION CARRIER.

SE7405076L
(en)

*

1974-04-16
1975-10-17
Erik Gerhard Natanel Westberg

OPTICAL MASS DATA MEMORY.

JPS6011374B2
(en)

*

1975-02-05
1985-03-25
株式会社日立製作所

Information reproducing method and device

DE2522405C2
(en)

*

1975-05-21
1982-04-15
Philips Patentverwaltung Gmbh, 2000 Hamburg

Multi-channel optical disk storage system for storing digital information

US4094013A
(en)

*

1975-05-22
1978-06-06
U.S. Philips Corporation
Optical storage disk system with disk track guide sectors

NL7510035A
(en)

*

1975-08-26
1977-03-01
Philips Nv

REGISTRATION CARRIER WITH AN OPTICALLY READABLE, TRACK-SIZED, INFORMATION STRUCTURE AND DEVICE FOR READING THIS.

FR2325987A1
(en)

*

1975-09-29
1977-04-22
Thomson Brandt

OPTICAL READING DEVICE FOR A RECORDING

NL174609C
(en)

*

1975-10-15
1984-07-02
Philips Nv

TRACK MIRROR IN AN OPTICAL RECORD PLAYER.

NL7600479A
(en)

*

1976-01-19
1977-07-21
Philips Nv

AUTOMATIC OPTICAL FOCUSING SYSTEM.

FR2349191A1
(en)

*

1976-04-23
1977-11-18
Thomson Brandt

OPTICAL INFORMATION DISC READER INCLUDING AN AUTOMATIC INFORMATION ACCESS DEVICE

US4093832A
(en)

*

1976-04-30
1978-06-06
Marvin Glass & Associates
Programmable record changer

1977

1977-07-01
FR
FR7720373A
patent/FR2396379A1/en
active
Granted

1978

1978-06-27
US
US05/919,552
patent/US4138663A/en
not_active
Expired – Lifetime

1978-06-30
DE
DE19782828845
patent/DE2828845A1/en
active
Granted

1978-06-30
CA
CA306,583A
patent/CA1109148A/en
not_active
Expired

1978-06-30
GB
GB7828521A
patent/GB2000612B/en
not_active
Expired

Also Published As

Publication number
Publication date

DE2828845A1
(en)

1979-01-11

FR2396379A1
(en)

1979-01-26

GB2000612A
(en)

1979-01-10

CA1109148A
(en)

1981-09-15

US4138663A
(en)

1979-02-06

FR2396379B1
(en)

1981-05-22

DE2828845C2
(en)

1992-02-20

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Legal Events

Date
Code
Title
Description

1998-07-22
PE20
Patent expired after termination of 20 years

Effective date:
19980629

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