Facsimile and static presentation processing – Facsimile – Specific signal processing circuitry
Patent
1988-11-04
1989-12-19
Coles, Sr., Edward L.
Facsimile and static presentation processing
Facsimile
Specific signal processing circuitry
358 14, 358 36, 358167, H04N 514, H04N 1118, H04N 1112, H04N 947
Patent
active
048886424
ABSTRACT:
A video signal processing circuitry which comprises a first arithmetic circuit adapted to receive a line sequential signal, a first 1H delay circuit for delaying an output from the first arithmetic circuit for a length of time equal to one horizontal period, a second 1H delay circuit for delaying an output from the first 1H delay circuit for a length of time equal to one horizontal period, a second arithmetic circuit adapted to receive the line sequential signal and the output from the second 1H delay circuit, a coefficient multiplier for varying the level of the output from the second arithmetic circuit according to a predetermined coefficient, an adder for summing the output from the first arithmetic circuit and the output from the second 1H delay circuit, a level control circuit for controlling the level of an output from the adder, and a switching device for sequentially providing an output from the level control circuit to first and second output terminals one for each horizontal period and also for sequentially providing the output from the first 1H delay circuit to the second and first output terminals one for each horizontal period.
REFERENCES:
patent: 4052736 (1977-10-01), Griffiths
patent: 4684976 (1987-08-01), Sugihara et al.
patent: 4739391 (1988-04-01), Takei et al.
patent: 4748499 (1988-05-01), Ueda
patent: 4750037 (1988-06-01), Kido et al.
Coles Sr. Edward L.
Mitsubishi Denki & Kabushiki Kaisha
Parker Michael D.
LandOfFree
Video signal processor does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Video signal processor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Video signal processor will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1906118