Wireless receiver

Details Wireless receiver Wireless receiver

1991-08-01

1993-06-08

Isen, Forester W.

Electrical audio signal processing systems and devices

One-way audio signal program distribution

Near field

455343, H04B 300, H04B 500

Patent

active

052186415

ABSTRACT:
A wireless receiver has an FM receiver for receiving an infrared radiation modulated by an audio signal. The received infrared radiation is demodulated into the audio signal, which is then supplied through a power amplifier to a loudspeaker unit or a headphone unit. The wireless receiver includes a detector for detecting whether or not the infrared radiation is received. An output signal from the detector is used to turn the power supply of the FM receiver and the power amplifier on or off. The user of the wireless receiver is not required to turn the receiver on and off manually.

REFERENCES:
patent: 4107613 (1978-08-01), Queen et al.
patent: 4899388 (1990-02-01), Mlodzikowski et al.
Patent Abstracts of Japan, unexamined applications, E section, vol. 3, No. 143, No. 27, 1979, The Patent Office Japanese Government, p. 121 E 154, Kokai-No. 54-122 013 (Matsushita Denki Sangyo).
Patent Abstracts of Japan, unexamined applications, E field, vol. 5, No. 99, Jun. 26, 1981, The Patent Office Japanese Government, p. 167 E 63, Kokai-No. 56-44 230 (Arupain).

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