Demodulator for facsimile equipment

Details Demodulator for facsimile equipment Demodulator for facsimile equipment

1986-07-03

1988-01-05

Griffin, Robert L.

Pulse or digital communications

Repeaters

Testing

333 18, 364724, H03H 730

Patent

active

047180730

ABSTRACT:
A demodulator for facsimile equipment in which there is provided a memory for storing equalizer coefficients of an automatic equalizer and a divergence detector for detecting divergence of the automatic equalizer, and in which equalizer coefficients of the automatic equalizer established at the beginning of transmission or reception are stored in the memory. In the event of divergence of the automatic equalizer during reception of a subsequent picture data message, the stored equalizer coefficients are re-set in the automatic equalizer.

REFERENCES:
patent: 3868603 (1975-02-01), Guidoux
patent: 4146840 (1979-03-01), McRae et al.
patent: 4438521 (1984-03-01), Mattei
patent: 4575857 (1986-03-01), Murakami
patent: 4597088 (1986-06-01), Posti et al.

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