FR2262848B3 - - Google Patents

Info

Publication number: FR2262848B3
Authority: FR; France
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

FR7506358A

Other versions

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.)

Koninklijke Philips NV

Original Assignee

Philips Gloeilampenfabrieken NV

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.)

1974-02-28

Filing date

1975-02-28

Publication date

1977-11-04

1975-02-28 Application filed by Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV

1975-09-26 Publication of FR2262848A1 publication Critical patent/FR2262848A1/fr

1977-11-04 Application granted granted Critical

1977-11-04 Publication of FR2262848B3 publication Critical patent/FR2262848B3/fr

Status Expired legal-status Critical Current

Classifications

- 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
- G11B17/02—Details
- G11B17/022—Positioning or locking of single 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
- 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
- G11B7/095—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 specially adapted for discs, e.g. for compensation of eccentricity or wobble
- G11B7/0953—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 specially adapted for discs, e.g. for compensation of eccentricity or wobble to compensate for eccentricity of the disc or disc tracks

FR7506358A 1974-02-28 1975-02-28 Expired FR2262848B3 (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
NLAANVRAGE7402767,A NL177780C (nl)	1974-02-28	1974-02-28	Inrichting voor het uitlezen van een op een draaitafel te plaatsen schijfvormige registratiedrager.

Publications (2)

Publication Number	Publication Date
FR2262848A1 FR2262848A1 (fr)	1975-09-26
FR2262848B3 true FR2262848B3 (fr)	1977-11-04

Family

ID=19820865

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FR7506358A Expired FR2262848B3 (fr)	1974-02-28	1975-02-28

Country Status (15)

Country	Link
US (1)	US3934080A (fr)
JP (1)	JPS5838852B2 (fr)
AT (1)	AT355819B (fr)
AU (1)	AU497549B2 (fr)
BE (1)	BE826027A (fr)
CA (1)	CA1059620A (fr)
CH (1)	CH592351A5 (fr)
DE (1)	DE2506452C2 (fr)
DK (1)	DK140160B (fr)
ES (1)	ES435084A1 (fr)
FR (1)	FR2262848B3 (fr)
GB (1)	GB1504208A (fr)
IT (1)	IT1033176B (fr)
NL (1)	NL177780C (fr)
SE (1)	SE409150B (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4918678A (en) *	1977-12-12	1990-04-17	Dolby Ray Milton	Disc reproducing system for compensating mechanical imperfections
JPS5786173A (en) *	1980-11-17	1982-05-29	Toshiba Corp	Recorder and reproducer
NL8200208A (nl) *	1982-01-21	1983-08-16	Philips Nv	Inrichting voor het uitlezen van een schijfvormige registratiedrager.
US4788676A (en) *	1986-12-19	1988-11-29	Dennis James T	Record player
DE19806898A1 (de)	1998-02-19	1999-08-26	Thomson Brandt Gmbh	Gerät zum Lesen und/oder Beschreiben scheibenförmiger Aufzeichnungsträger
CN113324150A (zh) *	2021-06-01	2021-08-31	北京华之峰智能技术有限公司	一种用于记录飞行区通道信息的摄影机

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2863668A (en) *	1953-04-21	1958-12-09	Robert P Lathrop	Apparatus for establishing concentric operation of phonograph sound grooves
US3000005A (en) *	1957-10-29	1961-09-12	Rca Corp	Off-center indicator

1974
- 1974-02-28 NL NLAANVRAGE7402767,A patent/NL177780C/xx not_active IP Right Cessation
- 1974-06-10 US US05/477,904 patent/US3934080A/en not_active Expired - Lifetime
1975
- 1975-02-15 DE DE2506452A patent/DE2506452C2/de not_active Expired
- 1975-02-20 CA CA220,671A patent/CA1059620A/fr not_active Expired
- 1975-02-25 SE SE7502097A patent/SE409150B/xx unknown
- 1975-02-25 DK DK72775AA patent/DK140160B/da unknown
- 1975-02-25 CH CH234475A patent/CH592351A5/xx not_active IP Right Cessation
- 1975-02-25 GB GB7797/75A patent/GB1504208A/en not_active Expired
- 1975-02-25 IT IT20636/75A patent/IT1033176B/it active
- 1975-02-26 AU AU78566/75A patent/AU497549B2/en not_active Expired
- 1975-02-26 AT AT148375A patent/AT355819B/de not_active IP Right Cessation
- 1975-02-26 ES ES435084A patent/ES435084A1/es not_active Expired
- 1975-02-26 BE BE153784A patent/BE826027A/fr unknown
- 1975-02-27 JP JP50024485A patent/JPS5838852B2/ja not_active Expired
- 1975-02-28 FR FR7506358A patent/FR2262848B3/fr not_active Expired

Also Published As

Publication number	Publication date
NL177780C (nl)	1985-11-18
IT1033176B (it)	1979-07-10
AU497549B2 (en)	1978-12-14
AU7856675A (en)	1976-08-26
AT355819B (de)	1980-03-25
ATA148375A (de)	1979-08-15
US3934080A (en)	1976-01-20
CA1059620A (fr)	1979-07-31
NL7402767A (nl)	1975-09-01
SE7502097L (fr)	1975-08-29
BE826027A (fr)	1975-08-26
DE2506452C2 (de)	1984-12-13
DK140160B (da)	1979-06-25
CH592351A5 (fr)	1977-10-31
DE2506452A1 (de)	1975-09-04
DK72775A (fr)	1975-10-27
DK140160C (fr)	1979-11-19
JPS50122204A (fr)	1975-09-25
JPS5838852B2 (ja)	1983-08-25
SE409150B (sv)	1979-07-30
FR2262848A1 (fr)	1975-09-26
NL177780B (nl)	1985-06-17
GB1504208A (en)	1978-03-15
ES435084A1 (es)	1976-12-16

Publication	Publication Date	Title
FR2262584B1 (fr)	1977-04-15
FR2264586A1 (fr)	1975-10-17
FR2274842B3 (fr)	1977-12-16
FR2269465A1 (fr)	1975-11-28
FR2262848B3 (fr)	1977-11-04
FR2278306B1 (fr)	1976-12-17
FR2288291B1 (fr)	1982-05-21
FI751300A (fr)	1975-11-07
FR2282736B1 (fr)	1979-04-27
FR2274784B1 (fr)	1979-06-08
FR2283531B1 (fr)	1978-09-22
AU7462274A (fr)	1976-04-29
AU7459574A (fr)	1976-04-29
AU488280B2 (fr)	1976-07-15
FR2292146B1 (fr)	1977-07-15
CS174564B1 (fr)	1977-04-29
BG20661A1 (fr)	1975-12-20
BG20922A1 (fr)	1976-01-20
BG19609A2 (fr)	1975-10-10
BG19639A1 (fr)	1975-10-10
BG20723A1 (fr)	1975-12-20
BG20702A1 (fr)	1975-12-20
BG20961A1 (fr)	1976-01-20
BG20700A1 (fr)	1975-12-20
BG19643A1 (fr)	1975-10-10

Legal Events

Date	Code	Title	Description
1980-11-21	ST	Notification of lapse