Facsimile and static presentation processing – Facsimile – Specific signal processing circuitry
Patent
1991-05-06
1993-04-13
Kostak, Victor R.
Facsimile and static presentation processing
Facsimile
Specific signal processing circuitry
358181, 358188, H04N 5262
Patent
active
052027651
ABSTRACT:
A video switch combines a first video signal with a compressed second video signal for application to a display unit to provide "picture-in-picture" images in which the first video is displayed in a main picture area of the display and the compressed second video signal is displayed as an inset picture within the main picture area. A non-linear processor, connected between an output of the video switch and an input of the display unit, enhances selected features of the combined video signal displayed by the display unit. Circuit means are provided for controlling the non-linear processor so that non-linear processing is applied to displayed images only in the main picture area and not in the inset picture area.
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Coalter Richard G.
Emanuel Peter M.
Kostak Victor R.
Murrell Jeffrey S.
Thomson Consumer Electronics Inc.
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