Tunable filter circuit for facsimile recorders

Details Tunable filter circuit for facsimile recorders Tunable filter circuit for facsimile recorders

1987-12-09

1989-06-27

Goldberg, E. A.

Facsimile and static presentation processing

Facsimile

Recording apparatus

358280, 358296, H04N 121, H04N 140, H04N 132

Patent

active

048434787

ABSTRACT:
An electronic system for processing graphic teletype coded signals or graphic facsimile signals in different modes of frequency modulation comprises two filter channels passing different frequency modulated or keyed bands, two filter channels respectively passing signals from the two bands to a pulse shaper which produces a pulsed signal corresponding to the outputs of the filter channels, and channels respectively coupling the output of one filter channel and of the shaper to a facsimile recorder.

REFERENCES:
patent: 3920895 (1975-11-01), Vieri
patent: 3920896 (1975-11-01), Bishop

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