G - Physics – 11 – B
Patent
G - Physics
11
B
352/33.12
G11B 3/00 (2006.01) H04N 5/76 (2006.01)
Patent
CA 1106497
RCA 71,140 WIDEBAND ELECTROMECHANICAL RECORDING SYSTEM Abstract of the Disclosure A system for recording signals in a disc master comprises an electromechanical cutterhead responsive to the signals and a signal processing means interposed between the cutterhead and a signal source. The signals applied to the cutterhead are of the encoded type such that most of the signal energy is contained in signal components occupying a band of frequencies about one octave wide or less. The cutterhead is so constructed that its response to the signal components varies with frequency in substantial correspondence with the energy distribution of the maximum signal components over the afore-mentioned band. The signal processing means serves dual purposes. On the one hand, it cooperates with the cutterhead to provide a combined frequency response which is relatively uniform. On the other hand, it serves to reduce the energy level of high energy level signal components applied to the cutterhead. The reduction of the applied energy makes possible the use of a smaller cutterhead than would otherwise be the case. The smaller cutterhead structure, in turn, results in a relatively wide cutterhead bandwidth. -1-
287699
Morneau Roland L.
Rca Corporation
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