G - Physics – 11 – B
Patent
G - Physics
11
B
352/10.5
G11B 5/86 (2006.01) G11B 20/00 (2006.01) G11B 23/28 (2006.01) G11B 27/024 (2006.01) G11B 27/30 (2006.01) G06F 1/00 (2006.01)
Patent
CA 1194220
IN THE CANADIAN PATENT AND TRADEMARK OFFICE PATENT APPLICATION entitled: Method for identifying a sound recording and duplicating installation using said method. Inventor : Dimitri BARANOFF-ROSSINE Applicant : Société SCOME-FRANCE ABSTRACT OF THE DISCLOSURE In an installation comprising a master assembly for reading the sound information signals and the end-of-program sequence signals recorded on a master tape, and at least one slave assembly to record a second time the said read out signals, the slave assembly comprises circuits for detecting and regenerating end-of- sequence signals, which circuits are connected to the output of the said recording amplifier, digital coding circuits by derivation from a pilot frequency for producing a coded auxiliary digital signal, means to modify the digital coding at each new detection of end-of- sequence signals and an adder circuit to add the coded auxiliary digital signal with the sound information signal before re-recording the latter. The coded auxiliary signal enables to identify the duplicated sound recording.
414331
Sim & Mcburney
Societe Scome-France
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