Facsimile and static presentation processing – Facsimile – Specific signal processing circuitry
Patent
1990-05-02
1992-03-17
Kostak, Victor R.
Facsimile and static presentation processing
Facsimile
Specific signal processing circuitry
358 12, 358142, H04N 708
Patent
active
050973320
ABSTRACT:
A television signal processing method for processing a wide-aspect-ratio television signal into a conventional four-to-three standard aspect ratio signal for transmission and display. The method includes an encoding process and a decoding process for wide-aspect-ratio display. No decoding is needed for display of a central panel of the encoded signal upon conventional television receivers. The encoding process includes dividing the signal vertically into the central panel, separated by two side panels. The side panel pixel information is then placed within horizontal bands formed above and below the central panel for transmission to either a conventional display for displaying the central panel, or for an enhanced wide-aspect-ratio display for decoding and displaying the wide-aspect-picture signal. Amplitude and time compression techniques and shuffling of the side panel segment information are aspects of the present invention.
REFERENCES:
patent: 4567508 (1986-01-01), Hulyer
patent: 4847676 (1989-07-01), Oliphant et al.
patent: 4959717 (1990-09-01), Faroudja
Y. Kimata, Y. Araki, S. Takayama, "Study of the Methods of Signal Processing Applicable to Wide Aspect EDTV Compatible with NTSC", paper presented at Nat'l Assn of Broadcasters, Atlanta, Ga., Apr. 2, 1990.
Harrison David B.
Kostak Victor R.
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