Duplicating system for video and audio signals using timebase co

Details Duplicating system for video and audio signals using timebase co Duplicating system for video and audio signals using timebase co

1991-09-05

1994-07-05

Psitos, Aristotelis

Dynamic magnetic information storage or retrieval

Record copying

360 143, G11B 586, G11B 2702

Patent

active

053272960

ABSTRACT:
A video signal is duplicated in a reduced time by using n video tape recording devices having rotary heads reproducing the video signal from respective recording media at a normal rotary head rotational speed and transporters transporting the respective recording media at n times a normal transport speed. The reproduced video signals are offset from each other by one frame of the video signal, and are timebase compressed, selectively delayed and combined into an n times normal speed reproduced signal, that is, a video signal with its timebase compressed by 1
. The n times normal speed reproduced signal is recorded by at least one video tape recorder on a recording medium at an n times normal recording speed, thereby duplicating the original video signal. An audio signal may also be duplicated in this manner.

REFERENCES:
patent: 4329719 (1982-05-01), Ninomiya et al.
patent: 4355338 (1982-10-01), Yamamoto et al.
patent: 4800230 (1990-02-01), Sherritt
patent: 4888653 (1989-12-01), Cullum
Patent Abstracts of Japan, vol. 10, No. 12, (P-421) Jan. 17, 1986 & JP-A-60 167 123 (Matsushita) Aug. 30, 1985.
Patent Abstracts of Japan, vol. 12, No. 58 (P-669) Feb. 20, 1988 & JP-A-62 202 332 (Sony Corp.) Sep. 7, 1987.
Patent Abstracts of Japan, vol. 14, No. 341 (P-1081) Jul. 24, 1990 & JP-A-21 18 903 (Canon Inc.) May 7, 1990.

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