Multi-standard television receiver for receiving a television si

Details Multi-standard television receiver for receiving a television si Multi-standard television receiver for receiving a television si

1982-06-23

1984-08-21

Britton, Howard W.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358198, 455142, 455144, H04N 562, H04B 116

Patent

active

044673604

ABSTRACT:
On receipt of an FM sound signal an intermediate frequency signal (at 1) is directly applied to an AM demodulator (80) via an electronic switch (50). The audio signal is then obtained by frequency demodulation (in 10) of an intercarrier signal obtained from the demodulator (80). On receipt of an AM sound signal the intermediate frequency signal is applied to the AM demodulator (80) via a filter (6) and the audio signal is obtained from the output of the AM demodulator (80).

REFERENCES:
patent: 2686221 (1954-10-01), Avins
H. L. Weinberger; FM-to-AM Converter for Satellite Direct Broadcast; IEEE Transactions on Consumer Electronics, vol. CE-21, No. 4; Nov. 1975; p. 404.

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