Facsimile and static presentation processing – Static presentation processing – Attribute control
Patent
1988-09-13
1989-08-08
Chin, Tommy P.
Facsimile and static presentation processing
Static presentation processing
Attribute control
H04N 978
Patent
active
048558150
ABSTRACT:
A first delay circuit delays a digital composite color video signal by a one-scanning-line time. A second delay circuit delays the output signal of the first delay circuit by the one-scanning-line time. A first correlation detector detects a correlation between the digital composite color video signal and the output signal of the first delay circuit. A second correlation detector detects a correlation between output signals of the first and second delay circuits. A coefficient generator generates first and second coefficients corresponding to magnitudes of the correlation-detect outputs of first and second correlation detectors. A first difference-signal detector detects a difference signal of the digital composite color video signal and the output signal of the first delay circuit. A second difference-signal detector detects a difference signal of the output signals of the first and second delay circuits. A first weighting section weights the difference signal from the first difference-signal detector with the first coefficient provided from the coefficient generator. A second weighting section weights the difference signal from the second difference-signal detector with the second coefficient provided from the coefficient generator. A chrominance signal component outputting section adds together output signals of the first and second weighting sections to separate and output a chrominance signal component contained in the digital composite color video signal.
REFERENCES:
patent: 4644389 (1987-02-01), Nakagawa
patent: 4703342 (1987-10-01), Takahashi
patent: 4727415 (1988-02-01), Nakagawa
patent: 4809060 (1989-02-01), Saeki
K. Kawai et al,; "IDTV Receiver", IEEE Trans. CE vol. CE-33, No. 3, Aug. 1987.
Nishigori et al,; "A Two Dimensional Adaptive Digital Decoder for Color Television Signals", IEEE Trans. CE vol. CE-33, No. 3, Aug. 1987.
Hoshino Kiyoshi
Yasuki Seijiro
Chin Tommy P.
Kabushiki Kaisha Toshiba
LandOfFree
Digital composite color video signal separating circuit with ver does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Digital composite color video signal separating circuit with ver, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Digital composite color video signal separating circuit with ver will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-909656