IT984020B - Apparato per l esatto rotazione di un piatto giradischi in am biente sotto vuoto - Google Patents

Apparato per l esatto rotazione di un piatto giradischi in am biente sotto vuoto

Info

Publication number
IT984020B
IT984020B IT23245/73A IT2324573A IT984020B IT 984020 B IT984020 B IT 984020B IT 23245/73 A IT23245/73 A IT 23245/73A IT 2324573 A IT2324573 A IT 2324573A IT 984020 B IT984020 B IT 984020B
Authority
IT
Italy
Prior art keywords
vacuum environment
turntable plate
exact rotation
exact
rotation
Prior art date
Application number
IT23245/73A
Other languages
English (en)
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
Application filed by Rca Corp filed Critical Rca Corp
Application granted granted Critical
Publication of IT984020B publication Critical patent/IT984020B/it

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
    • G11B11/03—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by deforming with non-mechanical means, e.g. laser, beam of particles
    • 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
    • G11B19/20—Driving; Starting; Stopping; Control thereof
    • G11B19/2009—Turntables, hubs and motors for disk drives; Mounting of motors in the drive
    • 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
    • G11B25/043—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 using rotating discs

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Manufacturing Optical Record Carriers (AREA)
  • Rotational Drive Of Disk (AREA)
  • Physical Vapour Deposition (AREA)
IT23245/73A 1972-04-19 1973-04-19 Apparato per l esatto rotazione di un piatto giradischi in am biente sotto vuoto IT984020B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1815272A GB1420322A (en) 1972-04-19 1972-04-19 Turntable rotation in a vacuum atmosphere

Publications (1)

Publication Number Publication Date
IT984020B true IT984020B (it) 1974-11-20

Family

ID=10107533

Family Applications (1)

Application Number Title Priority Date Filing Date
IT23245/73A IT984020B (it) 1972-04-19 1973-04-19 Apparato per l esatto rotazione di un piatto giradischi in am biente sotto vuoto

Country Status (9)

Country Link
US (1) US3943275A (it)
JP (1) JPS4918318A (it)
AT (1) AT342674B (it)
CA (1) CA1014659A (it)
ES (1) ES413915A1 (it)
FR (1) FR2181040B1 (it)
GB (1) GB1420322A (it)
IT (1) IT984020B (it)
NL (1) NL7305470A (it)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4067639A (en) * 1976-05-27 1978-01-10 Xerox Corporation Holographic scanning spinner
JPS54149806U (it) * 1978-04-11 1979-10-18
JPS56137555A (en) * 1980-03-27 1981-10-27 Sony Corp Optical disc cassette and disc driving method
US4339814A (en) * 1980-10-20 1982-07-13 Discovision Associates Spindle assembly for a video recorder-playback machine
US5280465A (en) * 1992-07-15 1994-01-18 Minnesota Mining And Manufacturing Company Fluid drive system for a rotating medium
JP3040887B2 (ja) * 1992-10-14 2000-05-15 パイオニア株式会社 情報記録装置
GB9808825D0 (en) * 1998-04-24 1998-06-24 Nimbus Communications Int Ltd A disk recording system and a method of controlling the rotation of a turntable in such a disk recording system
DE102017128414B4 (de) * 2017-11-30 2019-07-04 Peter Kraus Plattenspieler mit hydrostatischer Lagerung

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB320910A (en) * 1928-04-19 1929-10-21 Columbia Graphophone Co Ltd Improvements in sound records and recording machines
US3030452A (en) * 1958-01-29 1962-04-17 Rca Corp Regulation of head spacing by air bearing means
US3103364A (en) * 1960-09-06 1963-09-10 Macks Phonograph turntable
US3381085A (en) * 1962-05-09 1968-04-30 Minnesota Mining & Mfg Duplication of video disc recordings

Also Published As

Publication number Publication date
AT342674B (de) 1978-04-10
DE2319825A1 (de) 1973-10-25
FR2181040A1 (it) 1973-11-30
CA1014659A (en) 1977-07-26
FR2181040B1 (it) 1976-05-28
AU5464773A (en) 1974-10-24
ATA350873A (de) 1977-08-15
DE2319825B2 (de) 1977-06-23
NL7305470A (it) 1973-10-23
GB1420322A (en) 1976-01-07
JPS4918318A (it) 1974-02-18
US3943275A (en) 1976-03-09
ES413915A1 (es) 1976-01-16

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