IT1078709B - Dispositivo di spostamento della puntina di riproduzione nei fonografi a due dischi concentrici - Google Patents

Dispositivo di spostamento della puntina di riproduzione nei fonografi a due dischi concentrici

Info

Publication number
IT1078709B
IT1078709B IT69488/76A IT6948876A IT1078709B IT 1078709 B IT1078709 B IT 1078709B IT 69488/76 A IT69488/76 A IT 69488/76A IT 6948876 A IT6948876 A IT 6948876A IT 1078709 B IT1078709 B IT 1078709B
Authority
IT
Italy
Prior art keywords
phonographers
move
reproduction point
concentric discs
discs
Prior art date
Application number
IT69488/76A
Other languages
English (en)
Inventor
Watanabe Katsumi
Original Assignee
Watanabe Kenkyusho
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 Watanabe Kenkyusho filed Critical Watanabe Kenkyusho
Application granted granted Critical
Publication of IT1078709B publication Critical patent/IT1078709B/it

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B3/00—Recording by mechanical cutting, deforming or pressing, e.g. of grooves or pits; Reproducing by mechanical sensing; Record carriers therefor
    • G11B3/02—Arrangements of heads
    • G11B3/04—Multiple, convertible, or alternative transducing arrangements
    • 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
    • G11B3/00—Recording by mechanical cutting, deforming or pressing, e.g. of grooves or pits; Reproducing by mechanical sensing; Record carriers therefor
    • G11B3/68—Record carriers
    • G11B3/80—Record carriers incorporating subsidiary guide means for heads, other than modulated grooves; Part-formed unmodulated grooves for conversion into transducing grooves
IT69488/76A 1976-04-01 1976-10-15 Dispositivo di spostamento della puntina di riproduzione nei fonografi a due dischi concentrici IT1078709B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3627576A JPS52119901A (en) 1976-04-01 1976-04-01 Acoustic reproducing arm head for toy recorder reproducer

Publications (1)

Publication Number Publication Date
IT1078709B true IT1078709B (it) 1985-05-08

Family

ID=12465211

Family Applications (1)

Application Number Title Priority Date Filing Date
IT69488/76A IT1078709B (it) 1976-04-01 1976-10-15 Dispositivo di spostamento della puntina di riproduzione nei fonografi a due dischi concentrici

Country Status (7)

Country Link
US (1) US4076256A (it)
JP (1) JPS52119901A (it)
DE (1) DE2634577C3 (it)
ES (1) ES450631A1 (it)
FR (1) FR2346801A1 (it)
GB (1) GB1517088A (it)
IT (1) IT1078709B (it)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4837784A (en) * 1987-03-14 1989-06-06 Sony Corporation Apparatus for adapting the diameter of a disk-like recording medium

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US671513A (en) * 1899-01-18 1901-04-09 Frederick D Artrey Goold Phonograph.
GB331429A (en) * 1929-08-30 1930-07-03 Sigmund Katscher Improvements in and relating to sound boxes
US2680150A (en) * 1951-11-28 1954-06-01 Gamewell Co Sound reproducing apparatus
US3581410A (en) * 1969-02-25 1971-06-01 Mattel Inc Talking clock
US3801110A (en) * 1972-08-21 1974-04-02 Marvin Glass & Associates Sound record

Also Published As

Publication number Publication date
JPS5310443B2 (it) 1978-04-13
DE2634577C3 (de) 1980-01-24
GB1517088A (en) 1978-07-12
US4076256A (en) 1978-02-28
JPS52119901A (en) 1977-10-07
FR2346801A1 (fr) 1977-10-28
DE2634577B2 (de) 1979-05-17
FR2346801B1 (it) 1981-03-20
DE2634577A1 (de) 1977-10-13
ES450631A1 (es) 1977-07-16

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