GB1450681A - Data recording - Google Patents

Data recording

Info

Publication number
GB1450681A
GB1450681A GB5474672A GB5474672A GB1450681A GB 1450681 A GB1450681 A GB 1450681A GB 5474672 A GB5474672 A GB 5474672A GB 5474672 A GB5474672 A GB 5474672A GB 1450681 A GB1450681 A GB 1450681A
Authority
GB
United Kingdom
Prior art keywords
disc
axis
record
head
nov
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
GB5474672A
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.)
PROCESS PERIPHERALS Ltd
Original Assignee
PROCESS PERIPHERALS Ltd
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 PROCESS PERIPHERALS Ltd filed Critical PROCESS PERIPHERALS Ltd
Priority to GB5474672A priority Critical patent/GB1450681A/en
Publication of GB1450681A publication Critical patent/GB1450681A/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
    • G11B21/00—Head arrangements not specific to the method of recording or reproducing
    • G11B21/02—Driving or moving of heads
    • G11B21/08—Track changing or selecting during transducing operation
    • G11B21/081—Access to indexed tracks or parts of continuous track
    • G11B21/083—Access to indexed tracks or parts of continuous track on discs

Landscapes

  • Moving Of Heads (AREA)

Abstract

1450681 Disc recording and playback PROCESS PERIPHERALS Ltd 27 Nov 1973 [27 Nov 1972] 54746/72 Heading G5R A head 5 is moved from track to track on a disc record 3 by rotating a head support 1 through not more than 45 degrees about an axis which is parallel to and spaced from the axis of rotation of the disc 3 and passes through the disc 3. As shown, the spring-mounted flying heads 5, 7 may be either magnetic or optical, and the heads and their support plate 1 are statically balanced about their axis of rotation. A rotary solenoid 22 is controlled by a photoelectric tachometer 24, 25, 26 to lower the head plate 1 towards the record 3 when the record reaches 90% of its normal running speed.
GB5474672A 1972-11-27 1972-11-27 Data recording Expired GB1450681A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB5474672A GB1450681A (en) 1972-11-27 1972-11-27 Data recording

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5474672A GB1450681A (en) 1972-11-27 1972-11-27 Data recording

Publications (1)

Publication Number Publication Date
GB1450681A true GB1450681A (en) 1976-09-22

Family

ID=10471947

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5474672A Expired GB1450681A (en) 1972-11-27 1972-11-27 Data recording

Country Status (1)

Country Link
GB (1) GB1450681A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0203420A1 (en) * 1985-05-14 1986-12-03 Deutsche Thomson-Brandt GmbH Apparatus, especially a video recorder

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0203420A1 (en) * 1985-05-14 1986-12-03 Deutsche Thomson-Brandt GmbH Apparatus, especially a video recorder

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Legal Events

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