FR875721A - Magnetic sound recording process - Google Patents

Magnetic sound recording process

Info

Publication number
FR875721A
FR875721A FR875721DA FR875721A FR 875721 A FR875721 A FR 875721A FR 875721D A FR875721D A FR 875721DA FR 875721 A FR875721 A FR 875721A
Authority
FR
France
Prior art keywords
recording process
sound recording
magnetic sound
magnetic
sound
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.)
Licentia Patent Verwaltungs GmbH
Original Assignee
Licentia Patent Verwaltungs GmbH
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 Licentia Patent Verwaltungs GmbH filed Critical Licentia Patent Verwaltungs GmbH
Application granted granted Critical
Publication of FR875721A publication Critical patent/FR875721A/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
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/02—Recording, reproducing, or erasing methods; Read, write or erase circuits therefor
    • G11B5/027—Analogue recording
    • G11B5/03—Biasing
FR875721D 1940-10-19 1941-10-03 Magnetic sound recording process Expired FR875721A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE875721X 1940-10-19

Publications (1)

Publication Number Publication Date
FR875721A true FR875721A (en) 1942-10-01

Family

ID=6817419

Family Applications (1)

Application Number Title Priority Date Filing Date
FR875721D Expired FR875721A (en) 1940-10-19 1941-10-03 Magnetic sound recording process

Country Status (1)

Country Link
FR (1) FR875721A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2604548A (en) * 1946-12-05 1952-07-22 Brush Dev Co Apparatus for demagnetizing magnetic recording-reproducting heads
US2704790A (en) * 1947-08-27 1955-03-22 Stromberg Carlson Co Reduction of noise level in magnetic recording systems by use of a.-c. bias and/or d.-c. correction of asymmetry
US2870270A (en) * 1954-02-08 1959-01-20 Nagai Kenzo Magnetic reproducing systems

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2604548A (en) * 1946-12-05 1952-07-22 Brush Dev Co Apparatus for demagnetizing magnetic recording-reproducting heads
US2704790A (en) * 1947-08-27 1955-03-22 Stromberg Carlson Co Reduction of noise level in magnetic recording systems by use of a.-c. bias and/or d.-c. correction of asymmetry
US2870270A (en) * 1954-02-08 1959-01-20 Nagai Kenzo Magnetic reproducing systems

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