FR866833A - Sound recording system - Google Patents

Sound recording system

Info

Publication number
FR866833A
FR866833A FR866833DA FR866833A FR 866833 A FR866833 A FR 866833A FR 866833D A FR866833D A FR 866833DA FR 866833 A FR866833 A FR 866833A
Authority
FR
France
Prior art keywords
recording system
sound recording
sound
recording
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.)
RCA Corp
Original Assignee
RCA Corp
Radio Corporation of America
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, Radio Corporation of America filed Critical RCA Corp
Application granted granted Critical
Publication of FR866833A publication Critical patent/FR866833A/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
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
FR866833D 1939-06-26 1940-08-20 Sound recording system Expired FR866833A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US866833XA 1939-06-26 1939-06-26

Publications (1)

Publication Number Publication Date
FR866833A true FR866833A (en) 1941-09-08

Family

ID=22200181

Family Applications (1)

Application Number Title Priority Date Filing Date
FR866833D Expired FR866833A (en) 1939-06-26 1940-08-20 Sound recording system

Country Status (1)

Country Link
FR (1) FR866833A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2885490A (en) * 1954-12-22 1959-05-05 Rca Corp Direct positive sound recording system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2885490A (en) * 1954-12-22 1959-05-05 Rca Corp Direct positive sound recording system

Similar Documents

Publication Publication Date Title
CH214653A (en) Device for reproducing magnetic sound recordings.
FR866030A (en) Electromechanical system
FR865593A (en) Electro-acoustic transducers
FR917384A (en) Attachment system
FR862867A (en) Loud speaker
FR828982A (en) Sound reproducing devices
FR866833A (en) Sound recording system
FR822142A (en) Improvement in sound recording
FR937957A (en) Radio-printer system
FR856664A (en) Elastic coupling system
FR853623A (en) Headquarters improvements
FR864073A (en) Sound recording systems
FR872509A (en) Sound recording device
FR871633A (en) Ultra-shortwave directed radiation system
FR866104A (en) Improvement in sound recording
FR880733A (en) Sound re-recording system
FR820383A (en) Improvement in sound recording
FR849990A (en) Clutch disc improvements
FR864106A (en) Sound transmission system
FR832064A (en) Sound recording system preventing background noise
FR868842A (en) Recording tachometer
FR864759A (en) Sound recording device on film
FR858980A (en) Rigid insulator system
FR836864A (en) Improvements to sound recording systems
FR868717A (en) Anti-swirl speaker