Circuit arrangement for processing, transmitting, and acoustical

Details Circuit arrangement for processing, transmitting, and acoustical Circuit arrangement for processing, transmitting, and acoustical

1982-12-08

1986-11-04

Orsino, Jr., Joseph A.

Telecommunications

Receiver or analog modulated signal frequency converter

Signal selection based on frequency

3701101, 381105, 455608, 455617, H04B 900

Patent

active

046213740

ABSTRACT:
Digitized audio-frequency signals are processed in a signal processor (SP) together with digital control signals and pass through a wireless infrared transmission link (I) whose receiver (E) and a following power amplifier (V) are incorporated in a loudspeaker box (B). The audio-frequency signals are coded in a protected code and are fed first to a code-conversion/error-correction processor (CP), then to the signal processor (SP), and then to an RF modulator (M) which drives the transmitter (S) of the transmission link (I).
In a modification, the code-conversion/error-correction processor (CP) and the signal processor (SP) are disposed within the loudspeaker box (B'), so that errors arising on the transmission link (I) can be compensated for.

REFERENCES:
patent: 3881063 (1975-04-01), Mawake et al.
patent: 3924120 (1975-12-01), Cox, III
patent: 3927316 (1975-12-01), Citta
patent: 4020461 (1977-04-01), Adams et al.
patent: 4081747 (1978-03-01), Meyerle
patent: 4254500 (1981-03-01), Brookhart
patent: 4282605 (1981-08-01), Bose
patent: 4291411 (1981-09-01), Muller
patent: 4437185 (1984-03-01), Sako et al.

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