Circuit arrangement of a stereo-hunting device in a stereo decod

Details Circuit arrangement of a stereo-hunting device in a stereo decod Circuit arrangement of a stereo-hunting device in a stereo decod

1976-02-20

1977-06-28

Olms, Douglas W.

H04H 500

Patent

active

040327159

ABSTRACT:
A sum signal and a difference signal of two reproduction signals, in addition to a pilot tone, are obtained from a received signal in a circuit arrangement for a stereo-hunting device in a stereo decoder. The sum and difference signals are converted by way of a matrix operating with sum and difference formation to form the reproduction signals. In the case of a mono-received signal only the sum signal is present. The sum signal channel has connected therein an attenuator which has a control input for receiving a control voltage and in the absence of the pilot tone the control voltage causes the sum signal channel to become blocked.

REFERENCES:
patent: 3248484 (1966-04-01), Beckman
patent: 3329773 (1967-07-01), Ochi
patent: 3617641 (1971-11-01), Feit et al.

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