Facsimile and static presentation processing – Static presentation processing – Attribute control
Patent
1987-07-27
1989-08-01
Shepperd, John W.
Facsimile and static presentation processing
Static presentation processing
Attribute control
358 15, 358 16, 358141, H04N 1112, H04N 708
Patent
active
048537667
ABSTRACT:
A widescreen television signal having left side, right side and center panel information is converted into a signal compatible with a standard television system, such as NTSC. In the compatible signal, center panel information is expanded to occupy the standard display region seen by a viewer, side panel low frequency information is compressed into the horizontal overscan region, and side panel high frequency information modulates an alternative subcarrier other than the chrominance subcarrier. The alternate subcarrier is at an interlace frequency which is an odd multiple of one-half the horizontal line rate, and is located between the luminance vertical detail band and the chrominance band.
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Isnardi Michael A.
Patel Chandrakant B.
Emanuel Peter M.
General Electric Company
Herrmann Eric P.
Kurdyla Ronald H.
Shepperd John W.
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