Composite stereophonic signal generator

Details Composite stereophonic signal generator Composite stereophonic signal generator

1975-11-04

1977-08-09

Olms, Douglas W.

H04H 500

Patent

active

040412440

ABSTRACT:
A stereophonic signal generator for generating a composite signal for effectively attenuating undesired spurious signals in a modulated signal, e.g., in a four channel stereophonic signal. In the generator, the main spurious signal, which is a spurious signal most closely adjacent to a given or desired frequency band for a necessary signal, is cancelled by a cancellation signal which is in a compensation relationship with the main spurious signal. Thus, residual spurious signals are attenuated easily by simple filters without degrading the necessary signals.

REFERENCES:
patent: 3175170 (1965-03-01), Van Duyne
patent: 3378772 (1968-04-01), Van Kessel et al.
patent: 3496491 (1970-02-01), Krause
patent: 3822365 (1974-07-01), Dorren

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