Facsimile and static presentation processing – Facsimile – Specific signal processing circuitry
Patent
1988-03-11
1989-07-25
Groody, James J.
Facsimile and static presentation processing
Facsimile
Specific signal processing circuitry
358108, 358 21R, H04N 718
Patent
active
048519049
ABSTRACT:
A frame memory stores one-frame data of an input digital video signal and outputs the stored data as a one-frame delayed digital video signal. A first motion data generator receives the input digital video signal and the one-frame delayed digital signal from the frame memory and generates first motion data in accordance with the difference between these two signals. A data compander receives the one-frame delayed digital video signal from the frame memory, compands the data amount of the one-frame delayed digital video signal, and oututs the resultant signal. A sub-frame memory stores the output signa from the data compander and outputs the stored data as a two-frame delayed signal. A data expander receives the two-frame delayed output signal from the sub-frame memory, expands the two-frame delayed output signal to the original data amount, and outputs the resultant signal. A second motion data generator receives the input digital video signal and the two-frame delayed signal from the data expander, and generates second motion data in accordance with the difference between the two signals.
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patent: 4626891 (1986-12-01), Achiha
patent: 4736252 (1988-04-01), Nakagawa et al.
NEC Technical Journal, vol. 37, No. 4/1984, The Enhanced Definition Digital Television by Non-Interlace Scanning.
1984 July National Convention Record of the Institute of Television Engineers of Japan.
Kawai Kiyoyuki
Miyazaki Toru
Groody James J.
Kabushiki Kaisha Toshiba
Peng John K.
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