Facsimile and static presentation processing – Facsimile – Recording apparatus
Patent
1993-05-11
1996-03-19
Chin, Tommy P.
Facsimile and static presentation processing
Facsimile
Recording apparatus
358320, 358330, 348638, 348708, 348712, 348713, 348641, 348642, H04N 979
Patent
active
055007392
ABSTRACT:
A frequency-multiplexed video signal is generated in which a color-under signal and a second under signal are linearly combined with at least partially overlapping frequency spectra to form a composite under signal for an FM luma signal. The frequency-multiplexed video signal is suited for recording on magnetic tape using helical scanning methods and for being played back from the magnetic tape using helical scanning methods. The second under signal is generated in such way that line-comb filtering can be used during playback to separate color-under signal and second under signal each from the composite signal despite their frequency spectra being at least partially overlapping in the composite signal.
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patent: 4984093 (1991-01-01), Schmidtmann et al.
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patent: 5113262 (1992-05-01), Strolle et al.
patent: 5161030 (1992-11-01), Song
British Office Action on Application No. 9108836.9 Oct. 1993.
Journal of British I.R.E. on "Reduction of Television Bandwidth by Frequency-Interlace", Feb. 1960, pp. 127-136 (disclosed by Howson and Bell).
Ko Jung-wan
Limberg Allen L.
Patel Chandrakant B.
Schnitzler Raymond
Strolle Christopher H.
Bushnell Robert E.
Chin Tommy P.
Samsung Electronics Co,. Ltd.
Truong Khoi
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