GB1042318A - Recording and/or reproducing apparatus - Google Patents

Recording and/or reproducing apparatus

Info

Publication number
GB1042318A
GB1042318A GB4558562A GB4558562A GB1042318A GB 1042318 A GB1042318 A GB 1042318A GB 4558562 A GB4558562 A GB 4558562A GB 4558562 A GB4558562 A GB 4558562A GB 1042318 A GB1042318 A GB 1042318A
Authority
GB
United Kingdom
Prior art keywords
follower
mounting plate
disc
head
recording
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
GB4558562A
Inventor
John Richard Herbert
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.)
International Business Machines Corp
Original Assignee
International Business Machines 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
Application filed by International Business Machines Corp filed Critical International Business Machines Corp
Priority to GB4558562A priority Critical patent/GB1042318A/en
Priority to GB1991466A priority patent/GB1042319A/en
Publication of GB1042318A publication Critical patent/GB1042318A/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
    • 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
    • G11B7/085—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam into, or out of, its operative position or across tracks, otherwise than during the transducing operation, e.g. for adjustment or preliminary positioning or track change or selection
    • G11B7/0857—Arrangements for mechanically moving the whole head
    • G11B7/08576—Swinging-arm positioners
    • 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
    • G11B21/085—Access to indexed tracks or parts of continuous track on discs with track following of accessed part
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
    • G11B5/4806—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed specially adapted for disk drive assemblies, e.g. assembly prior to operation, hard or flexible disk drives
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
    • G11B5/54—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head into or out of its operative position or across tracks
    • G11B5/55—Track change, selection or acquisition by displacement of the head
    • G11B5/5521—Track change, selection or acquisition by displacement of the head across disk tracks
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
    • G11B5/58—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/74—Record carriers characterised by the form, e.g. sheet shaped to wrap around a drum
    • G11B5/82—Disk carriers

Abstract

1,042,318. Recording and playback apparatus. INTERNATIONAL BUSINESS MACHINES CORPORATION. Aug. 6, 1963 [Dec. 1, 1962], No. 45585/62. Heading G5R. Recording and playback apparatus comprises a rotatable mounting plate provided on one side with a plurality of spiral formations, a recording disc mounted so as to be rotatable about the axis of rotation of the mounting plate, and a transducing head assembly and driving means therefor including a follower engageable with one of the formations so as to move the head assembly over the disc in conformity with movement of the follower as the mounting plate rotates. In Fig. 1, a magnetizable record disc 1 is attached to the upper surface of a mounting plate 2 secured to a rotatable shaft 3. A transducing head 12 including one or more transducers is carried by one end of a U-shaped link arm 11, the other end of which carries a follower 10 which engages one of the spiral grooves 9a, 9b or 9c, formed in the lower surface of mounting plate 2. A pair of fixed guides 14 (only one of which is shown in Fig. 1), constrain the transducing head and follower to move in a radial direction. The follower is pivotally mounted on the link arm 11, and when it reaches the innermost end of the groove 9 it is lifted out of engagement by an inclined plate (not shown) so that the follower and head can be returned to an initial position, e.g. by a spring. In an alternative mounting arrangement, Figs. 3 and 4 (not shown), the head and the follower are mounted on arms attached to a spindle which pivots about a vertical axis. The spiral grooves in the mounting plate may be engageable by a single follower or by a particular one or any of a plurality of followers, each associated with a head assembly. As an aid to selecting a particular groove the shaft 3 may be provided with cams adapted to close electrical contacts at particular angles of rotation. One or more additional recording discs may be mounted on the shaft 3 and scanned on both sides by transducer heads coupled to the same mounting used for the head 12, Fig. 12 (not shown). In another arrangement, Fig. 13, the recording disc 1 is mounted separately from the mounting plate 2; the disc and the plate may rotate at the same or at different speeds. This arrangement is suitable for optical methods of reading, as a light source movable with the follower 10 may be mounted adjacent the side of the disc 1 opposite to that over which the head assembly moves.
GB4558562A 1962-12-01 1962-12-01 Recording and/or reproducing apparatus Expired GB1042318A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB4558562A GB1042318A (en) 1962-12-01 1962-12-01 Recording and/or reproducing apparatus
GB1991466A GB1042319A (en) 1962-12-01 1962-12-01 Recording and/or reproducing apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4558562A GB1042318A (en) 1962-12-01 1962-12-01 Recording and/or reproducing apparatus

Publications (1)

Publication Number Publication Date
GB1042318A true GB1042318A (en) 1966-09-14

Family

ID=10437759

Family Applications (2)

Application Number Title Priority Date Filing Date
GB1991466A Expired GB1042319A (en) 1962-12-01 1962-12-01 Recording and/or reproducing apparatus
GB4558562A Expired GB1042318A (en) 1962-12-01 1962-12-01 Recording and/or reproducing apparatus

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB1991466A Expired GB1042319A (en) 1962-12-01 1962-12-01 Recording and/or reproducing apparatus

Country Status (1)

Country Link
GB (2) GB1042319A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2809736A1 (en) 1977-03-04 1978-09-07 Olivetti & Co Spa DEVICE FOR WRITING AND / OR READING BINARY INFORMATION ON A FLEXIBLE MAGNETIC PLATE
EP0017175A1 (en) * 1979-03-30 1980-10-15 BASF Aktiengesellschaft Data storage system and magnetic discs therefor
EP0026837A1 (en) * 1979-10-09 1981-04-15 International Business Machines Corporation Flexible magnetic disk drive machine
FR2474221A1 (en) * 1980-01-23 1981-07-24 Thomson Csf OPTICAL DEVICE FOR RECORDING AND READING INFORMATION MEDIA AND OPTICAL MEMORY SYSTEM COMPRISING SUCH A SYSTEM

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2809736A1 (en) 1977-03-04 1978-09-07 Olivetti & Co Spa DEVICE FOR WRITING AND / OR READING BINARY INFORMATION ON A FLEXIBLE MAGNETIC PLATE
DE2857697C2 (en) * 1977-03-04 1982-07-22 Ing. C. Olivetti & C., S.p.A., 10015 Ivrea, Torino Device for writing and / or reading binary information on a flexible magnetic disk
EP0017175A1 (en) * 1979-03-30 1980-10-15 BASF Aktiengesellschaft Data storage system and magnetic discs therefor
EP0026837A1 (en) * 1979-10-09 1981-04-15 International Business Machines Corporation Flexible magnetic disk drive machine
FR2474221A1 (en) * 1980-01-23 1981-07-24 Thomson Csf OPTICAL DEVICE FOR RECORDING AND READING INFORMATION MEDIA AND OPTICAL MEMORY SYSTEM COMPRISING SUCH A SYSTEM
EP0033052A1 (en) * 1980-01-23 1981-08-05 Thomson-Csf Optical recording-reproducing device of record carriers and optical memory system comprising such a device
US4387452A (en) 1980-01-23 1983-06-07 Thomson-Csf Optical device for the recording and reading of data media and optical memory system incorporating such a device

Also Published As

Publication number Publication date
GB1042319A (en) 1966-09-14

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