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
GB16667/30A
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.)
AEG AG
Original Assignee
Allgemeine Elektricitaets Gesellschaft
AEG AG
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 Allgemeine Elektricitaets Gesellschaft, AEG AGfiledCriticalAllgemeine Elektricitaets Gesellschaft
Publication of GB356237ApublicationCriticalpatent/GB356237A/en
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
Landscapes
Silver Salt Photography Or Processing Solution Therefor
(AREA)
Abstract
356,237. Photographic sound-records. ALLGEMEINE ELEKTRICIT€TS-GES., 2, Friedrich Karl-Ufer, Berlin. May 29, 1930, No. 16667. Convention date, May 30, 1929. [Class 40 (ii).] Transparent composite s o u n d - record films are photographically printed from separate negative films on which the sounds to be combined are independently recorded. The prints may be made in superposition or side by side as shown on a common film which may also carry the picture records. The arrangement permits of sound phenomena recorded at different places being combined for simultaneous reproduction.
GB16667/30A1929-05-301930-05-29Process for producing by photography composite sound record films
ExpiredGB356237A
(en)