Facsimile and static presentation processing – Facsimile – Recording apparatus
Patent
1992-12-08
1994-10-25
Chin, Tommy P.
Facsimile and static presentation processing
Facsimile
Recording apparatus
358316, 358326, 348609, H04N 983
Patent
active
053594266
ABSTRACT:
A chroma signal is emphasized then sub-sampled using a sampling offset differing by 90.degree. in four consecutive fields, then recorded on a recording medium. After reproduction from the recording medium, the phase of the reproduced chroma signal is corrected, and the phase corrected reproduced chroma signal is interpolated to increase its bandwidth and then non-linearly de-emphasized to reduce the noise contained therein. The interpolation is performed on adjacent pixels of four consecutive fields of the phase corrected reproduced chroma signal, and occurs before non-linear de-emphasis to reduce flicker.
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IEICE Transactions vo. E-72, No. 4, 30 Apr. 1989, Tokyo JP pp. 324-325, XP000046974 M. Kobayashi et al. `Chrominance Bandwidth Expansion of Color-under VCR`.
Honda Takashi
Sato Dai
Chin Tommy P.
Frommer William S.
Nguyen Huy
Sinderbrand Alvin
Sony Corporation
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