Multi-directional sound signal reproducing system

Details Multi-directional sound signal reproducing system Multi-directional sound signal reproducing system

1975-09-19

1978-02-21

Olms, Douglas W.

1701004ST, H04R 500

Patent

active

040754251

ABSTRACT:
The present invention is to increase the carrier level so as to improve the S/N ratio when the factor T.sub.93, T.sub.T or T.sub.Q is small in level. When the level is low, noises are apt to be offensive to a listener's ear, but the reproducing level may be judged by the low level of T.sub..SIGMA., T.sub.T or T.sub.Q. Accordingly, the low level of T.sub..SIGMA. or T.sub.T is detected to raise the carrier level, and to reduce an FM demodulation noise and hence to improve the total S/N ratio.

REFERENCES:
patent: 3761628 (1973-09-01), Bauer
patent: 3839602 (1974-10-01), Takahashi et al.
patent: 3843850 (1974-10-01), Takahashi et al.
patent: 3894201 (1975-07-01), Pyles
patent: 3934087 (1976-01-01), Takahashi et al.
patent: 3936618 (1976-02-01), Takahashi et al.
patent: 3936619 (1976-02-01), Sugimoto et al.

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