Facsimile and static presentation processing – Facsimile – Specific signal processing circuitry
Patent
1987-09-03
1989-05-30
Groody, James J.
Facsimile and static presentation processing
Facsimile
Specific signal processing circuitry
340750, 36523009, 36518908, H04N 514
Patent
active
048356123
ABSTRACT:
A video signal memory apparatus for data display device. The display device receives an input video signal corresponding to video data in successive fields of a prescribed field period, each field period including an indicating period corresponding to a portion of the field displayed by the display device, and a blanking period corresponding to the remaining portion of the field. The video signal memory apparatus includes an address generator for generating address data corresponding to the video signals in the indicating period received by the apparatus, and a memory device for storing only the video data corresponding to the video signals in the indicating period in accordance with the corresponding address data from the address generator, thereby increasing the effective utilization rate of the memory.
REFERENCES:
patent: 4101926 (1978-07-01), Dischert et al.
patent: 4148070 (1979-04-01), Taylor
patent: 4558436 (1985-12-01), Wagensonner et al.
Japanese Patent Disclosure SHO 61-172496, Inventor: Masaaki Tamura, Published Aug. 4, 1986.
Groody James J.
Kabushiki Kaisha Toshiba
Kostak Victor R.
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