System for producing a video combine from multiple video images

Details System for producing a video combine from multiple video images System for producing a video combine from multiple video images

1984-04-27

1988-07-19

Chin, Tommy P.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358 22, 358182, H04N 5262

Patent

active

047588926

ABSTRACT:
Video channel combines are produced by digitally processing binary numbers representing values of video image information in multiple channels, for corresponding points in a display of the resulting composite video image. The binary numbers are combined in the course of processing in response to processed key signals which determine a preselected percentage of each binary number's value, to produce new binary numbers. After summation, the latter represent composite video image values to be displayed at the same temporal and spatial locations of the display of the composite video image. Total percentages resulting from the summation of all numbers for each composite video image value, including numbers corresponding to percentage of background video, is equal to 100%.

REFERENCES:
patent: 3598908 (1971-08-01), Poulett
patent: 3673324 (1972-06-01), Ito
patent: 3728479 (1973-04-01), Srinivasan
patent: 4028727 (1977-06-01), Skrydstrup
patent: 4207596 (1980-06-01), Pires
patent: 4360831 (1982-11-01), Kellar
patent: 4602286 (1986-07-01), Kellar

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