Inventors:
Jack K. C. Hsu - Pacifica CA
Aldo J. Panattoni - San Mateo CA
International Classification:
G11B 586
Abstract:
Video recording apparatus (10) includes master video apparatus (12) including a video camera(16) and a master video recording device (18). The master video recording device is respectively started and stopped by respectively first and second signals (S1 and S2) provided by the camera. The master recording device produces an original video recording. The original video recording includes a time-code (TC) which is not visible in frames of the original recording when it is replayed. A synchronous duplicate video recording apparatus (14) includes a duplicate video recording device (26) and is connected to the master video recording apparatus. The duplicate video recording device provides a duplicate video recording including the time-code. The time-code is visible in frames of the duplicate recording when it is replayed. The synchronous duplicate video recording apparatus includes circuitry (28) which enables the master and duplicate video recording devices to be started and stopped synchronously.