JVC Professional APRIL 2007 NAB-2007 The ProHD Report
Copyright 2007 JVC Professional Products Company All rights reserved Page 21 of 43
ProHD GY-HD250U
Camcorder with DR-HD100
Operational Flexibility = Direct-to-Edit / Direct-to-Air
The ProHD ENG system provides exceptional flexibility in work flow, in the ENG
Van and in the TV station news operation. A key sub-system is the DR-HD100, a
portable hard disk recorder which attaches to the ProHD camcorder and records up to
6 hours of full bandwidth 1280x720p60. The DR-HD100 is a rugged, shock-proofed
field recorder accepting the 1394 MPEG-2 TS 20Mbps signal directly from the
ProHD camcorder, recording to hard disk concurrently while recording to the built-in
HDV tape cassette for acquisition archival purposes.
Fig. 8. The DTE (Direct-to-Edit)
ProHD hard disk recorder can
be attached on top of the
camcorder or on the back side
of the battery, recording up to 6
hours of live compressed
material direct to disk at.
The DR-HD100 can be
connected via 1394 to a laptop
or to a workstation with direct
access to the HD material for
editing, without the need to
transfer to the local disk array
before editing. Thus the name
“Direct-to-Edit” or DTE. NOTE:
DTE and Direct-to-Edit are trademarks of
Focus Enhancements Inc.
JVC’s Direct-to-Air work flow supports live interviews through wired coax and
wireless microwave to the ENG Van, then backhaul microwave (or satellite) to the
TV station studio for immediate on-air. Through the simplicity of the DR-HD100
and an edit-capable lap top in the ENG Van, minimally delayed edited “live
coverage” can be easily accomplished through the Direct-to-Edit capabilities the
ProHD ENG system. One advantage in hard disk recorders is the near instant random
access to any material on the disk.
Play from NLE Direct-to-Air. The GV Canopus Edius ProHD editor can play
direct-to-air from the NLE, enabling extremely fast turn-around of clips needing
editing before airplay and avoiding the need to first record or store the clip. The
Edius ProHD application may run on a laptop in the ENG Van or on a desktop in a
news edit bay.