Facsimile and static presentation processing – Static presentation processing – Attribute control
Patent
1990-06-29
1991-05-07
Chin, Tommy P.
Facsimile and static presentation processing
Static presentation processing
Attribute control
H04N 978
Patent
active
050141180
ABSTRACT:
A luminance signal processing circuit of a VCR functions as a non-correlation component enhancement circuit during recording, and as a line correlation noise reduction circuit during reproduction. The luminance signal processing circuit enhances the non-correlation components in the luminance signal utilizing a 1H delay circuit of the output side of a conventional 3 line logical comb filter which is used as a Y/C separting circuit, during recording. The luminance signal processing circuit removes the noise components in the reproduced luminance signal utilizing a 1H delay circuit of the input side of a conventional 3 line logical comb filter which is used as a noise reduction circuit for remaining color components, during reproduction.
REFERENCES:
patent: 4050084 (1977-09-01), Rossi
patent: 4524382 (1985-06-01), Tanaka et al.
patent: 4862252 (1989-08-01), Kuroda
patent: 4951128 (1990-08-01), Miyake
patent: 4961108 (1990-10-01), Perlman
"Flicker-Free Non Interlaced Receiving System for Standard Color TV Signals", Okada et al., IEEE Transactions on Consumer Electronics, vol. CE-31, No. 3, Aug. 1985, pp. 240-254.
Chin Tommy P.
Sanyo Electric Co,. Ltd.
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