GB2075740B - Record disc identification - Google Patents

Record disc identification

Info

Publication number
GB2075740B
GB2075740B GB8112132A GB8112132A GB2075740B GB 2075740 B GB2075740 B GB 2075740B GB 8112132 A GB8112132 A GB 8112132A GB 8112132 A GB8112132 A GB 8112132A GB 2075740 B GB2075740 B GB 2075740B
Authority
GB
United Kingdom
Prior art keywords
disc identification
record disc
record
identification
disc
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
GB8112132A
Other versions
GB2075740A (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.)
RCA Corp
Original Assignee
RCA Corp
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
Priority claimed from US06/142,855 external-priority patent/US4341952A/en
Priority claimed from US06/142,852 external-priority patent/US4329575A/en
Application filed by RCA Corp filed Critical RCA Corp
Publication of GB2075740A publication Critical patent/GB2075740A/en
Application granted granted Critical
Publication of GB2075740B publication Critical patent/GB2075740B/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
    • 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
    • G11B19/122—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 an identification or authentication mark
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/06009—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code with optically detectable marking
    • 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
    • G11B23/30—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 with provision for auxiliary signals
    • G11B23/36—Signals on record carriers or on containers and recorded by the same method as the main recording
    • 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
    • G11B23/38—Visual features other than those contained in record tracks or represented by sprocket holes the visual signals being auxiliary signals
    • G11B23/40—Identifying or analogous means applied to or incorporated in the record carrier and not intended for visual display simultaneously with the playing-back of the record carrier, e.g. label, leader, photograph
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K2019/06215—Aspects not covered by other subgroups
    • G06K2019/06253—Aspects not covered by other subgroups for a specific application
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K2019/06215—Aspects not covered by other subgroups
    • G06K2019/06271—Relief-type marking

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)
  • Optical Recording Or Reproduction (AREA)
GB8112132A 1980-04-21 1981-04-16 Record disc identification Expired GB2075740B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US06/142,855 US4341952A (en) 1980-04-21 1980-04-21 Variable pitch grooved label for video disc
US06/142,852 US4329575A (en) 1980-04-21 1980-04-21 Video disc having a label for identifying material recorded thereon

Publications (2)

Publication Number Publication Date
GB2075740A GB2075740A (en) 1981-11-18
GB2075740B true GB2075740B (en) 1985-01-03

Family

ID=26840479

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8112132A Expired GB2075740B (en) 1980-04-21 1981-04-16 Record disc identification

Country Status (4)

Country Link
DE (1) DE3115554A1 (en)
FR (1) FR2480980A1 (en)
GB (1) GB2075740B (en)
IT (1) IT1138258B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4497049A (en) * 1982-02-25 1985-01-29 Staar S. A. System for detecting the operative face of a disc carrying data on one face only
FR2567671B1 (en) * 1984-07-11 1986-12-26 Logivision METHOD FOR STORING ON A DISC MULTIPLE SERIES OF INFORMATION INTENDED FOR DIFFERENT USERS AND DISC REALIZED BY THIS METHOD
JPS62149034A (en) * 1985-12-23 1987-07-03 Canon Inc Information recording medium
DE3742485A1 (en) * 1987-12-15 1989-06-29 Sick Optik Elektronik Erwin OPTICAL SCANNER
GB2232805A (en) * 1989-06-17 1990-12-19 Music Hire Group Limited Audio or video disc and reproduction apparatus therefor
KR940001789B1 (en) * 1991-01-31 1994-03-05 삼성전자 주식회사 Device for displaying information data and accessing method

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2037800A1 (en) * 1970-07-30 1972-02-03 Wittmoser Sound or image plate
DE2102876B2 (en) * 1971-01-22 1972-12-14 Ullstein AV Produktions und Ver triebsgesellschaftmbH, 1000 Berlin PANEL-SHAPED INFORMATION STORAGE
US4108365A (en) * 1971-03-01 1978-08-22 Hughes Robert M Coin-operated recording machine
US3842194A (en) * 1971-03-22 1974-10-15 Rca Corp Information records and recording/playback systems therefor
GB1392925A (en) * 1971-03-23 1975-05-07 Rca Corp Optical scanning arrangement and article useful therewith
GB1392924A (en) * 1971-03-23 1975-05-07 Rca Corp Optical scanning arrangement and article useful therewith
US3916160A (en) * 1971-12-13 1975-10-28 Bendix Corp Coded label for automatic reading systems
SE386757B (en) * 1972-04-21 1976-08-16 Ted Bildplatten PROCEDURE AND DEVICE FOR PREPARING A READABLE MARK ON THE MIRROR PART OF A DISC SHAPED INFORMATION CARRIER

Also Published As

Publication number Publication date
GB2075740A (en) 1981-11-18
IT8120926A0 (en) 1981-04-03
FR2480980A1 (en) 1981-10-23
DE3115554A1 (en) 1982-06-03
IT1138258B (en) 1986-09-17

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee