Dual compression format digital video production system

Details Dual compression format digital video production system Dual compression format digital video production system

1995-03-01

1996-01-30

Groody, James J.

Television

Studio equipment

360 141, 360 143, 358311, H04N 576

Patent

active

054884330

ABSTRACT:
An audio/video production system is implemented on a PC-based platform, preferably utilizing various forms of removable magnetic, optical, or magneto-optical storage media. Specially modified cameras or other sources provide digitally data-compressed audio and video program materials in two formats, a first format having a higher data-compression ratio and intended for use in off-line systems to develop edit decision lists, and a second format having a lower data-compression ratio and intended for use in on-line editing and to produce the final representations of the programs. Off-line editing decisions may thus be developed on a PC using removable storage media, and final representations of the programs may be produced on-line in accordance with stationary-head or rotary-head digital-tape-based formats, such as DAT, 6-mm or 8-mm tapes. In an alternative embodiment, automatic and unattended editing, or extended program playback of more than 40 hours duration of digital video, is available.

REFERENCES:
patent: 5164839 (1992-11-01), Lang
patent: 5218672 (1993-06-01), Morgan et al.
Panasonic NAB 95 Catalog.

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