Video transition circuitry including transition previewing means
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United States of America Patent
Stats
-
May 27, 1980
Grant Date -
N/A
app pub date -
Jun 9, 1978
filing date -
Jun 9, 1978
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Improved video transition circuitry including circuitry for previewing transitions from an on-air event signal to a next event signal. The circuitry includes a program transition switch responsive to the on-air event and next event signals for outputting the on-air event signal; a preview transition switch respnsive to the on-air event and next event signals for outputting the next event signal; transition control circuitry for either (a) controlling the program transition switch to effect a predetermined transition at the output of the program transition switch from the on-air event signal to the next event signal or (b) controlling the preview transition switch to effect a preview of the predetermined transition at the output of the preview transition switch where the predetermined transition may be, for example, a dissolve, a wipe or a bordered wipe.
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Cited Art Landscape
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