FM stereophonic receiver having muting and mode changing

Details FM stereophonic receiver having muting and mode changing FM stereophonic receiver having muting and mode changing

1977-07-14

1979-06-05

Olms, Douglas W.

H04H 500

Patent

active

041574559

ABSTRACT:
An FM stereophonic receiver includes a muting circuit for interrupting or reducing its signal reproduction output according to the electric field strength and a mode changing circuit for changing its reproduction mode to a stereophonic reproduction mode or a monaural reproduction mode according to the electric field strength. In the receiver, manual switches are operated to switch the muting operation point of the muting circuit and the stereophonic and monaural change-over point of the mode changing circuit, whereby the signal reproduction conditions can be suitably selected according to the choice or wish of a user.

REFERENCES:
patent: 3569633 (1971-03-01), Brahman
patent: 3752934 (1973-08-01), Nakamura et al.
patent: 3919482 (1975-11-01), Hamada
patent: 3934087 (1976-01-01), Takahashi et al.
patent: 3999132 (1976-12-01), Smith
patent: 4037057 (1977-07-01), Ogita et al.

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