Video transition circuitry including transition previewing means

Details Video transition circuitry including transition previewing means Video transition circuitry including transition previewing means

1978-06-09

1980-05-27

Moffitt, James W.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358182, H04N 522

Patent

active

042053463

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.

REFERENCES:
patent: 3506965 (1970-04-01), Dowling et al.
patent: 3604849 (1971-09-01), Skrydstrup

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