GB2092791B - Record carriers - Google Patents

Record carriers

Info

Publication number
GB2092791B
GB2092791B GB8201649A GB8201649A GB2092791B GB 2092791 B GB2092791 B GB 2092791B GB 8201649 A GB8201649 A GB 8201649A GB 8201649 A GB8201649 A GB 8201649A GB 2092791 B GB2092791 B GB 2092791B
Authority
GB
United Kingdom
Prior art keywords
record carriers
carriers
record
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
GB8201649A
Other versions
GB2092791A (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.)
Smiths Group PLC
Original Assignee
Smiths Group PLC
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 Smiths Group PLC filed Critical Smiths Group PLC
Priority to GB8201649A priority Critical patent/GB2092791B/en
Publication of GB2092791A publication Critical patent/GB2092791A/en
Application granted granted Critical
Publication of GB2092791B publication Critical patent/GB2092791B/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • G06K19/06187—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 magnetically 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
    • G11B23/38—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
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B25/00—Apparatus characterised by the shape of record carrier employed but not specific to the method of recording or reproducing, e.g. dictating apparatus; Combinations of such apparatus
    • G11B25/04—Apparatus characterised by the shape of record carrier employed but not specific to the method of recording or reproducing, e.g. dictating apparatus; Combinations of such apparatus using flat record carriers, e.g. disc, card
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
GB8201649A 1981-02-02 1982-01-21 Record carriers Expired GB2092791B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8201649A GB2092791B (en) 1981-02-02 1982-01-21 Record carriers

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8103102 1981-02-02
GB8201649A GB2092791B (en) 1981-02-02 1982-01-21 Record carriers

Publications (2)

Publication Number Publication Date
GB2092791A GB2092791A (en) 1982-08-18
GB2092791B true GB2092791B (en) 1984-12-05

Family

ID=26278302

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8201649A Expired GB2092791B (en) 1981-02-02 1982-01-21 Record carriers

Country Status (1)

Country Link
GB (1) GB2092791B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2136618A (en) * 1983-02-14 1984-09-19 Bryan Frederick Nicholls Data recording and storage arrangement
US4782221A (en) * 1985-04-01 1988-11-01 Cauzin Systems, Incorporated Printed data strip including bit-encoded information and scanner control
GB2221563B (en) * 1985-04-05 1990-06-20 Canon Kk Optical head
JP2556465B2 (en) * 1985-04-05 1996-11-20 キヤノン株式会社 Optical head access method for recording / reproducing apparatus
JPH0828046B2 (en) * 1987-01-30 1996-03-21 オリンパス光学工業株式会社 Data recording method on card-shaped recording medium
US4958339A (en) * 1988-01-07 1990-09-18 Kabushiki Kaisha Toshiba Optical card with increased data storage capacity and recording/reproducing apparatus therefor

Also Published As

Publication number Publication date
GB2092791A (en) 1982-08-18

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Legal Events

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