Facsimile apparatus

Details Facsimile apparatus Facsimile apparatus

1944-09-06

1979-12-04

Buczinski, S. C.

Facsimile and static presentation processing

Facsimile

Recording apparatus

178 22, 358264, 179 155, H04N 144

Patent

active

041774850

ABSTRACT:
1. In a facsimile apparatus, means for producing a stepped signal, the amplitudes of the steps being substantially dependent upon the photographic density of the subject and the durations of the steps being predetermined, a combining circuit and means for introducing the stepped signal thereto, means for introducing a coding signal to said combining circuit including a series of contacts and means for applying electrical potentials thereto, means for making successive circuits between the several contacts and the combining circuit, the durations of maintenance of the successive circuits being equal to the durations of the steps of the first mentioned signal, and means for synchronizing the circuit making means with the first mentioned signal.

REFERENCES:
patent: 2086798 (1937-07-01), Greenberg
patent: 2412964 (1946-12-01), Chatterjea et al.
patent: 2413440 (1946-12-01), Farrington
patent: 2419568 (1947-04-01), Labin
patent: 2437255 (1948-03-01), Hogan et al.
patent: 2448814 (1948-09-01), Mann et al.

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