Facsimile and static presentation processing – Static presentation processing – Attribute control
Patent
1991-11-04
1993-07-27
Groody, James J.
Facsimile and static presentation processing
Static presentation processing
Attribute control
H04N 964, H04N 978
Patent
active
052314766
ABSTRACT:
A Y/C separating apparatus includes a first separator for separating a stationary C component which has a demodulator for demodulating a color difference signal from the composite video signal with a color subcarrier signal, a detector for detecting a frame difference signal between two adjacent frames of the color difference signal and a modulator for modulating the frame difference signal with the color subcarrier signal so as to reproduce the stationary C component. Also included is a second separator for separating a moving C component by detecting a line difference signal between adjacent lines of the composite video signal, a motion detector for detecting a motion signal as a frame change between adjacent frames of the composite video signal, a first subtractor for subtracting the stationary C signal from the composite video signal so as to separate a stationary Y component, a second subtractor for subtracting the moving C component from the composite video signal so as to separate a moving Y component, a first mixer responsive to the motion signal for mixing the stationary C component and the moving C component with each other so as to output the C component and a second mixer responsive to the motion signal for mixing the stationary Y component and the moving Y component with each other to output the Y component.
REFERENCES:
patent: 4870482 (1989-09-01), Yasuki et al.
patent: 4930012 (1990-05-01), Fujita
patent: 4982271 (1991-01-01), Sugiyama et al.
patent: 4994900 (1991-02-01), Ebara et al.
"Motion Adaptive Processing for Improved Television Receiver", ITEJ Technical Report, vol. 12, No. 51, pp. 1-6, K. Sokawa, et al. Nov. 1988.
"Motion Adaptive 3 Dimensional Y/C Separation Processing", ITEJ Technical Report, vol. 12, No. 51, pp. 7-12, M. Ebara, et al. Nov. 1988.
"Development of Double Resolution Non-Interlace Digital TV", ITEJ Technical Report vol. 12, No. 51, pp. 19-24, Nov. 1988.
Koga Takashi
Matsuda Naoki
Mawatari Masahiko
Sumiyoshi Masatoshi
Tanaka Seiichi
Groody James J.
Kabushiki Kaisha Toshiba
Lee Michael H.
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