Facsimile and static presentation processing – Facsimile – Specific signal processing circuitry
Patent
1990-10-16
1992-04-07
Groody, James J.
Facsimile and static presentation processing
Facsimile
Specific signal processing circuitry
358 11, H04N 701, H04N 1120
Patent
active
051033089
ABSTRACT:
A convertor for converting a sub-sample television signal such as MUSE signal, which is obtained from a high density television signal by way of offset sub-sampling the horizontal scan lines of the high density television signal and time compressing the transmission band, to a standard television signal includes odd field and even field vertical filters for filtering odd lines and even lines in the MUSE signal, and time base expanders for selecting predetermined lines from the lines filtered by the odd and even field vertical filters and for expanding on time base the selected predetermined lines. Also, another vertical filter is provided for processing the signal from the time base expanders according to the sub-sampling phase.
REFERENCES:
patent: 4603350 (1986-07-01), Arbeiter et al.
patent: 4633293 (1986-12-01), Powers
patent: 4692801 (1987-09-01), Ninomiya et al.
patent: 5001562 (1991-03-01), Tabata et al.
Development for the MUSE System.
MUSE, A Transmission Method for HDTV Using Satellites.
"Video Signal Processing LSI for MUSE/NTSC Converter", Kimura et al., IEEE 1990 International Conference on Consumer Electronics Digest of Technical Papers, Jun. 6-8, 1990, pp. 200-201.
"MUSE/NTSC Converter", Itoga et al., IEEE Transactions on Consumer Electronics, vol. 35, No. 3, Aug., 1989, pp. 142-150.
"An HDTV Broadcasting System Utilizing a Bandwidth Compression Technique-MUSE", Ninomiya et al., IEEE Transactions on Broadcasting, vol. BC-33, No. 4, Dec., 1987, pp. 130-160.
Groody James J.
Lee Michael M.
Sanyo Electric Co,. Ltd.
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