FR681287A - Magnet system (talking head) for the reproduction of telegraphone sounds - Google Patents

Magnet system (talking head) for the reproduction of telegraphone sounds

Info

Publication number
FR681287A
FR681287A FR681287DA FR681287A FR 681287 A FR681287 A FR 681287A FR 681287D A FR681287D A FR 681287DA FR 681287 A FR681287 A FR 681287A
Authority
FR
France
Prior art keywords
telegraphone
sounds
reproduction
magnet system
talking head
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
Other languages
French (fr)
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.)
TELEGRAPHIE PATENT SYNDIKAT
Original Assignee
TELEGRAPHIE PATENT SYNDIKAT
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 TELEGRAPHIE PATENT SYNDIKAT filed Critical TELEGRAPHIE PATENT SYNDIKAT
Application granted granted Critical
Publication of FR681287A publication Critical patent/FR681287A/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
    • G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
    • G11B15/60—Guiding record carrier
    • G11B15/602—Guiding record carrier for track selection, acquisition or 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
    • G11B5/48—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
FR681287D 1928-09-26 1929-09-04 Magnet system (talking head) for the reproduction of telegraphone sounds Expired FR681287A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1828260X 1928-09-26

Publications (1)

Publication Number Publication Date
FR681287A true FR681287A (en) 1930-05-13

Family

ID=9976925

Family Applications (1)

Application Number Title Priority Date Filing Date
FR681287D Expired FR681287A (en) 1928-09-26 1929-09-04 Magnet system (talking head) for the reproduction of telegraphone sounds

Country Status (5)

Country Link
US (1) US1828260A (en)
DE (1) DE564538C (en)
FR (1) FR681287A (en)
GB (1) GB319680A (en)
NL (1) NL28943C (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2723315A (en) * 1948-11-05 1955-11-08 Indiana Steel Products Co Method and means for duplicating magnetic records by magnetic transfer phenomenon
US2747026A (en) * 1948-11-18 1956-05-22 Armour Res Found Recording apparatus and method for making duplicate magnetic records
US2677019A (en) * 1951-12-22 1954-04-27 Bell Telephone Labor Inc Magnetic head and method of making same
ZA4105B (en) * 1953-08-14

Also Published As

Publication number Publication date
NL28943C (en) 1933-02-15
DE564538C (en) 1932-11-19
US1828260A (en) 1931-10-20
GB319680A (en) 1930-07-09

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