Facsimile and static presentation processing – Facsimile – Specific signal processing circuitry
Patent
1989-01-19
1990-10-02
Britton, Howard W.
Facsimile and static presentation processing
Facsimile
Specific signal processing circuitry
358140, H04N 701
Patent
active
049611127
ABSTRACT:
In transmitting, on a transmission side, a laterally long image whose aspect ratio is different from a usual television screen having aspect ratio of 3:4, with a top and a bottom portions of the screen being image-free, auxiliary signal obtained by shifting a signal component corresponding to a different in frequency band determined by the number of scan lines corresponding to a height of the image and a signal component exceeding a horizontal frequency band determined by a luster line length to lower frequency sides, respectively, are inserted into the image-free portions, which are used in a receiving side. In the receiving side, the auxiliary signals are separated in time from the image signal and processed separately.
REFERENCES:
Schreiber, Wm. F., "6 mHz Single Channel HDTV Systems", Ottawa, HDTV Symposium, Oct. 1987, 10 pages.
Araki Yousai
Sugimori Yoshio
Urano Joji
Britton Howard W.
Nippon Television Network Corporation
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