Facsimile and static presentation processing – Facsimile – Recording apparatus
Patent
1989-01-26
1990-10-16
Richardson, Robert L.
Facsimile and static presentation processing
Facsimile
Recording apparatus
360 32, 360 331, 360 39, 358 13, H04N 576, H04N 592
Patent
active
049639927
ABSTRACT:
An apparatus for recording an reproducing a digital video signal is disclosed which includes n sampling circuits each for performing a sub-Nyquist sampling operation for the digital video signal in such a manner that the amount of data is reduced to one-n-th of an original amount (where n is a positive integer) and a pixel sampled by the sub-Nyquist sampling operation is not sampled by the remaining sampling circuits, recording/reproducing means for recording and reproducing information at all or part of pixels which are sampled by the n sampling circuits and a device for reconstructing the digital video signal from reproduced information at pixels with the aid of a synthesizing technique or interpolation technique.
REFERENCES:
patent: 4597023 (1986-06-01), Rijckaert
patent: 4633330 (1986-12-01), Yamamitsu et al.
patent: 4847701 (1989-07-01), Suesada
patent: 4870661 (1989-09-01), Yamada et al.
Doi Nobukazu
Eto Yoshizumi
Izumita Morishi
Mita Seiichi
Takeshita Kazuyuki
Hitachi , Ltd.
Richardson Robert L.
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