Image signal processing device

Details Image signal processing device Image signal processing device

1994-03-18

1995-10-24

Coles, Sr., Edward L.

Facsimile and static presentation processing

Facsimile

Synchronization

348689, 348616, 348607, 358443, 358446, 358445, H04N 136

Patent

active

054614899

ABSTRACT:
An image signal processing device is arranged to convert an analog image signal into a digital image signal after the analog image signal is clamped, to separate, in the form of a digital signal, a synchronizing signal from the digital image signal and to control a clamping action on the analog image signal according to a state of the separated digital synchronizing signal. The arrangement enables the device to always stably perform the clamping action.

REFERENCES:
patent: 4631598 (1986-12-01), Burkhardt et al.
patent: 4748677 (1988-05-01), Yokomizo
patent: 4853782 (1989-08-01), Asano et al.
patent: 5010395 (1991-04-01), Tsuji et al.
patent: 5019905 (1991-05-01), Pshtissky et al.

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