Facsimile and static presentation processing – Static presentation processing – Attribute control
Patent
1990-08-20
1991-07-09
Chin, Tommy P.
Facsimile and static presentation processing
Static presentation processing
Attribute control
358 16, 358142, H04N 1114, H04N 708
Patent
active
050310305
ABSTRACT:
In a system for encoding and decoding high frequency video information, an input video signal includes a high frequency band containing information to be encoded, and a lower frequency band. The frequency spectrum of the input video signal is folded around a frequency in the lower frequency band. A resulting folded video signal is combined with the input video signal to produce a combined signal which is low pass filtered by a filter having a cut-off frequency corresponding to the folding frequency. The filtered combined signal is separated into its constituent filtered video signal and filtered folded video signal parts. The separated folded video signal component is unfolded around the folding frequency to produce an unfolded video signal with frequencies in the high frequency band. The unfolded video signal is joined to the high frequency band of the separated video signal to produce an output video signal having a high frequency band with the uppermost frequencies thereof determined primarily by the unfolded video signal.
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patent: 4885631 (1989-12-01), Fukinuki et al.
"Experiments on Proposd Extended-Definition TV with Full NTSC Compatability", by T. Fukinuki et al., SMPTE Journal, Oct. 1984, pp. 923-929.
"An HDTV Broadcasting System Utilizing a Bandwidth Compression Technique-MUSE", by Y. Ninomiya et al., IEEE Translations on Broadcasting, vol. BC-33, No. 4, Dec. 1987.
Chin Tommy P.
General Electric Company
Herrmann Eric P.
Kurdyla Ronald H.
Tripoli Joseph S.
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