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Filing date
Publication date
Application filed by Klangfilm GmbhfiledCriticalKlangfilm Gmbh
Application grantedgrantedCritical
Publication of DK53828CpublicationCriticalpatent/DK53828C/da
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
H—ELECTRICITY
H03—ELECTRONIC CIRCUITRY
H03G—CONTROL OF AMPLIFICATION
H03G3/00—Gain control in amplifiers or frequency changers
H03G3/20—Automatic control
DK53828D1935-09-101936-07-20Fremgangsmaade og Apparat til Fremstilling af støjsvage Tonefilms.
DK53828C
(da)