GB1489774A - Video disc - Google Patents

Video disc

Info

Publication number
GB1489774A
GB1489774A GB42150/74A GB4215074A GB1489774A GB 1489774 A GB1489774 A GB 1489774A GB 42150/74 A GB42150/74 A GB 42150/74A GB 4215074 A GB4215074 A GB 4215074A GB 1489774 A GB1489774 A GB 1489774A
Authority
GB
United Kingdom
Prior art keywords
disc
bumps
video disc
height
splaces
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
Application number
GB42150/74A
Other languages
English (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.)
Discovision Associates
Original Assignee
MCA Discovision Inc
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.)
Filing date
Publication date
Application filed by MCA Discovision Inc filed Critical MCA Discovision Inc
Publication of GB1489774A publication Critical patent/GB1489774A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B23/00—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture
    • G11B23/0057—Intermediate mediums, i.e. mediums provided with an information structure not specific to the method of reproducing or duplication such as matrixes for mechanical pressing of an information structure ; record carriers having a relief information structure provided with or included in layers not specific for a single reproducing method; apparatus or processes specially adapted for their manufacture

Landscapes

  • Manufacturing Optical Record Carriers (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)
  • Photosensitive Polymer And Photoresist Processing (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Magnetic Record Carriers (AREA)
GB42150/74A 1973-10-01 1974-09-27 Video disc Expired GB1489774A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US40263673A 1973-10-01 1973-10-01

Publications (1)

Publication Number Publication Date
GB1489774A true GB1489774A (en) 1977-10-26

Family

ID=23592722

Family Applications (3)

Application Number Title Priority Date Filing Date
GB42150/74A Expired GB1489774A (en) 1973-10-01 1974-09-27 Video disc
GB25705/77A Expired GB1489777A (en) 1973-10-01 1974-09-27 Body having video information
GB25471/77A Expired GB1489776A (en) 1973-10-01 1974-09-27 Matrix

Family Applications After (2)

Application Number Title Priority Date Filing Date
GB25705/77A Expired GB1489777A (en) 1973-10-01 1974-09-27 Body having video information
GB25471/77A Expired GB1489776A (en) 1973-10-01 1974-09-27 Matrix

Country Status (8)

Country Link
US (1) US4141731A (cg-RX-API-DMAC7.html)
JP (3) JPS5428081B2 (cg-RX-API-DMAC7.html)
CA (1) CA1039999A (cg-RX-API-DMAC7.html)
DE (1) DE2443077B2 (cg-RX-API-DMAC7.html)
FR (4) FR2246896B1 (cg-RX-API-DMAC7.html)
GB (3) GB1489774A (cg-RX-API-DMAC7.html)
IT (1) IT1019433B (cg-RX-API-DMAC7.html)
NL (1) NL165316C (cg-RX-API-DMAC7.html)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62289970A (ja) * 1980-07-16 1987-12-16 デイスコビジヨン・アソシエ−ツ デイスク形の記録媒体
US5373490A (en) * 1980-07-16 1994-12-13 Discovision Associates System for recording digital information in a pulse-length modulation format
US5553047A (en) * 1980-07-16 1996-09-03 Discovision Associates System for recording digital information in a pulse-length modulation format
US5577015A (en) * 1980-07-16 1996-11-19 Discovision Associates System for recording digital information in a pulse-length modulation

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL165316C (nl) * 1973-10-01 1981-03-16 Mca Disco Vision Werkwijze voor de vervaardiging van een schrijfvormige video-afdrukmatrijs uitgaande van een moederschijf.
AU520835B2 (en) * 1977-03-24 1982-03-04 World Development Laboratories Optical recording system and method
NL7809227A (nl) * 1978-09-11 1980-03-13 Philips Nv Registratiedrager met een optisch uitleesbare, stra- lingsreflekterende informatiestruktuur.
FR2450683A1 (fr) * 1979-03-06 1980-10-03 Thomson Brandt Procede et appareil de realisation de disque video
US4430401A (en) 1979-06-13 1984-02-07 Discovision Associates Method for producing a recording disc stamper
US4470053A (en) * 1981-02-13 1984-09-04 Minnesota Mining And Manufacturing Company Protuberant optical recording medium
JPS58158225A (ja) * 1982-03-15 1983-09-20 Toshiba Corp 情報記録用基板の製造方法
DE3377173D1 (en) * 1982-09-29 1988-07-28 Toshiba Kk Radiation-sensitive carrier body utilized as stamper structure
JPS6028048A (ja) * 1983-07-25 1985-02-13 Matsushita Electric Ind Co Ltd マスタ−スタンパ−の製造方法
CA2020180C (en) * 1989-06-30 2000-01-04 Stephen A. Zager Method for making optically readable media containing embossed information
US5324188A (en) * 1989-12-19 1994-06-28 Canon Kabushiki Kaisha Roller stamper for molding a substrate sheet to become an information recording medium
US5266136A (en) * 1989-12-19 1993-11-30 Canon Kabushiki Kaisha Process for producing a roll stamper for molding a substrate sheet for information recording mediums
KR960016007B1 (ko) * 1993-02-08 1996-11-25 삼성전자 주식회사 반도체 칩 범프의 제조방법
US5475533A (en) * 1993-08-02 1995-12-12 Applied Physics Research, L.P. Apparatus for enhancing the brightness of an image and method of making the same
WO2020080344A1 (ja) * 2018-10-18 2020-04-23 株式会社パイオラックス 開閉体のロック装置

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3313626A (en) * 1962-08-01 1967-04-11 Russeli H Whitney Process of making a lithographic printing plate
GB1228591A (cg-RX-API-DMAC7.html) * 1968-03-14 1971-04-15
FR1601186A (cg-RX-API-DMAC7.html) * 1968-06-06 1970-08-10
US3658954A (en) * 1968-07-24 1972-04-25 Mca Technology Inc Duplicating process for video disc records
US3687664A (en) * 1968-07-24 1972-08-29 Gauss Electrophysics Inc Duplicating process for video disc records
US3661580A (en) * 1970-01-30 1972-05-09 Rca Corp Photographic method for producing a cathode-ray tube screen structure
US3794509A (en) * 1971-06-29 1974-02-26 Goodyear Tire & Rubber Carbon disk processing technique to retard oxidation
US3795534A (en) * 1972-04-19 1974-03-05 Rca Corp Manufacture of video discs
US3954469A (en) * 1973-10-01 1976-05-04 Mca Disco-Vision, Inc. Method of creating a replicating matrix
NL165316C (nl) * 1973-10-01 1981-03-16 Mca Disco Vision Werkwijze voor de vervaardiging van een schrijfvormige video-afdrukmatrijs uitgaande van een moederschijf.

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62289970A (ja) * 1980-07-16 1987-12-16 デイスコビジヨン・アソシエ−ツ デイスク形の記録媒体
US5373490A (en) * 1980-07-16 1994-12-13 Discovision Associates System for recording digital information in a pulse-length modulation format
US5375116A (en) * 1980-07-16 1994-12-20 Discovision Associates System for recording digital information in a pulse-length modulation format
US5448545A (en) * 1980-07-16 1995-09-05 Discovision Associates System for reproducing digital information in a pulse-length modulation format
US5479390A (en) * 1980-07-16 1995-12-26 Discovision Associates System for recording digital information in a pulse-length modulation format
US5553047A (en) * 1980-07-16 1996-09-03 Discovision Associates System for recording digital information in a pulse-length modulation format
US5557593A (en) * 1980-07-16 1996-09-17 Discovision Associates System for recording digital information in a pulse-length modulation format
US5559781A (en) * 1980-07-16 1996-09-24 Discovision Associates System for recording digital information in a pulse-length modulation format
US5577015A (en) * 1980-07-16 1996-11-19 Discovision Associates System for recording digital information in a pulse-length modulation
US5581528A (en) * 1980-07-16 1996-12-03 Discovision Associates System for recording digital information in a pulse-length modulation format
US5587983A (en) * 1980-07-16 1996-12-24 Discovision Associates System for recording digital information in a pulse-length modulation format
US5592455A (en) * 1980-07-16 1997-01-07 Discovision Associates System for recording digital information in a pulse-length modulation format
US6014355A (en) * 1980-07-16 2000-01-11 Discovision Associates System for recording digital information in a pulse-length modulation format
US6198717B1 (en) 1980-07-16 2001-03-06 Discovision Associates System for recording digital information in a pulse-length modulation format

Also Published As

Publication number Publication date
FR2246896A1 (cg-RX-API-DMAC7.html) 1975-05-02
FR2406235B1 (cg-RX-API-DMAC7.html) 1982-07-02
NL165316B (nl) 1980-10-15
FR2406234A1 (fr) 1979-05-11
JPS5494005A (en) 1979-07-25
JPS5494006A (en) 1979-07-25
FR2406235A1 (fr) 1979-05-11
DE2443077B2 (de) 1977-01-20
FR2246896B1 (cg-RX-API-DMAC7.html) 1979-07-06
JPS5062402A (cg-RX-API-DMAC7.html) 1975-05-28
NL165316C (nl) 1981-03-16
GB1489776A (en) 1977-10-26
NL7411705A (nl) 1975-04-03
US4141731A (en) 1979-02-27
JPS6114578B2 (cg-RX-API-DMAC7.html) 1986-04-19
IT1019433B (it) 1977-11-10
GB1489777A (en) 1977-10-26
FR2406233A1 (fr) 1979-05-11
JPS5428081B2 (cg-RX-API-DMAC7.html) 1979-09-13
CA1039999A (en) 1978-10-10
FR2406234B1 (cg-RX-API-DMAC7.html) 1982-11-19
DE2443077A1 (de) 1975-04-10
FR2406233B1 (cg-RX-API-DMAC7.html) 1982-07-09

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
430 Proceeding under section 30 patents act 1949
430 Proceeding under section 30 patents act 1949
PE20 Patent expired after termination of 20 years

Effective date: 19940926