FR1055385A - Burning of discs following conchoidal curves - Google Patents

Burning of discs following conchoidal curves

Info

Publication number
FR1055385A
FR1055385A FR1055385DA FR1055385A FR 1055385 A FR1055385 A FR 1055385A FR 1055385D A FR1055385D A FR 1055385DA FR 1055385 A FR1055385 A FR 1055385A
Authority
FR
France
Prior art keywords
conchoidal
burning
curves
discs following
discs
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)
Inventor
Henri Devaux
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 filed Critical
Application granted granted Critical
Publication of FR1055385A publication Critical patent/FR1055385A/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
    • G11B23/00—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture
    • G11B23/38—Visual features other than those contained in record tracks or represented by sprocket holes the visual signals being auxiliary signals
    • G11B23/42—Marks for indexing, speed-controlling, synchronising, or timing
FR1055385D 1952-05-03 1952-05-03 Burning of discs following conchoidal curves Expired FR1055385A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1055385T 1952-05-03

Publications (1)

Publication Number Publication Date
FR1055385A true FR1055385A (en) 1954-02-18

Family

ID=9596919

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1055385D Expired FR1055385A (en) 1952-05-03 1952-05-03 Burning of discs following conchoidal curves

Country Status (1)

Country Link
FR (1) FR1055385A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3079160A (en) * 1961-02-03 1963-02-26 Chelwin Productions Inc Guideway selector for multi-track records
WO1986003044A1 (en) * 1984-11-08 1986-05-22 Tummies Limited Partnership Multiple segment nonsequential recording

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3079160A (en) * 1961-02-03 1963-02-26 Chelwin Productions Inc Guideway selector for multi-track records
WO1986003044A1 (en) * 1984-11-08 1986-05-22 Tummies Limited Partnership Multiple segment nonsequential recording
US4606726A (en) * 1984-11-08 1986-08-19 Tummies Limited Partnership Multiple segment nonsequential recording

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