Appeal No. 1998-1397 Page 3
Application No. 08/482,905
destination tape. Because it requires enormous storage
capacities, however, disk-based editing is expensive.
The invention employs a computer with a disk drive for
interactive editing of video material. At any given time,
only a
small portion of video taped material is stored as video
frames on the computer’s disk. By software control, video
material is cached back and forth between the disk and source
video tapes. By this means editing is accomplished and an
edit decision list is constructed for compilation of a final
video production. The invention offers the advantage of fast
access time for editing the material on the disk while
allowing actual physical editing at the end of the project of
the actual video tape material. Furthermore, the logging of
the material onto the disk and the editing of the final tape
are done automatically.
Claim 21, which is representative for our purposes,
follows:
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