Facsimile and static presentation processing – Static presentation processing – Attribute control
Patent
1988-04-26
1989-08-01
Shepperd, John W.
Facsimile and static presentation processing
Static presentation processing
Attribute control
358 22, 358 31, 358140, H04N 1102, H04N 701
Patent
active
048537659
ABSTRACT:
A video signal processing circuit capable of reproducing a still picture signal from a color video signal comprises a luminance signal/chrominance signal separation circuit of a motion adaptive type, a scanning line interpolation circuit of a motion adaptive type connected with the separation circuit, a first memory connected with the separation circuit to store therein the output of the separation circuit, a second memory connected with the interpolation circuit to store therein the output of the interpolation circuit and a switching circuit for delivering therethrough the outputs of said first and second memories as a first output signal alternately and for delivering therethrough the outputs of said second and first memories as a second output signal alternately, the alternation for the delivery by the switching circuit being effected at a frequency identical with the field frequency of the video signal.
REFERENCES:
patent: 4498100 (1985-02-01), Bunting et al.
patent: 4641188 (1987-02-01), Dischert
patent: 4672445 (1987-06-01), Casey et al.
patent: 4701785 (1987-10-01), Willis
patent: 4768095 (1988-08-01), Wada et al.
patent: 4774582 (1988-09-01), Hakamada
Hirahata Shigeru
Ishikura Kazuo
Katsumata Kenji
Matono Takaaki
Nakagawa Isao
Hitachi , Ltd.
Shepperd John W.
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