Dynamic magnetic information storage or retrieval – Record editing
Patent
1988-03-04
1990-11-20
Faber, Alan
Dynamic magnetic information storage or retrieval
Record editing
358216, 358903, 358906, 360 3, 360 15, 369 84, G11B 2702
Patent
active
049722743
ABSTRACT:
An apparatus and process for providing an automated edit procedure between film and video formats is provided wherein a video edit becomes within one video field the exact replica of a film edit. Film frames (1/24th of a second) are read by video scans (1st and 2nd fields in 1/30th of a second) in a 3:2 pull down wherein successive movie frame scans are provided with four classes of video scans. These classes of video scans include (Class A) odd/even scans; (Class B) odd/even/odd scans; (Class C) even/odd/scans; and, finally (Class D) even/odd/even scans. All edits are limited to film frame edits. Each time a film frame edit is converted to a video edit decision, the system looks at the edit out frame type and/or the edit in frame type and the cumulative current overall time differential between the video run time and the film run time for the edit. Frames are added or subtracted to keep the total error within + or - one field and a new cumulative error calculated for the next sequential edit. All edits are made between respective odd to even. The system is preferably used by taking a film edit decision list, recording the desired edit decisions on a film format with respect to a video master, and thereafter reprocessing those decisions in accordance with the protocol set forth above. There results a side-by-side video and film cut which are indistinguishable in temporal detectable sound and motion characteristics.
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Bardini Richard A.
Becker Stanley D.
Chyron Corporation
Faber Alan
Young W. R.
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