Digital video signal recording/reproducing apparatus

Details Digital video signal recording/reproducing apparatus Digital video signal recording/reproducing apparatus

1991-04-23

1994-01-11

Zazworsky, John

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Synchronizing moving-head moving-record recorders

360 27, 358319, 358321, G11B 15473, G11B 2102

Patent

active

052787060

ABSTRACT:
In a digital video signal recording/reproducing apparatus for recording digital VCR video and audio signals by using a rotary cylinder, for a video signal with a frame frequency fN of 30 Hz or 29.97 Hz, the rotating frequency of the cylinder is set to 2.5 times fN. On the other hand, for a signal with a frame frequency fP of 25 Hz, the rotating frequency of the cylinder is set to 3.0 times fP. As a result, as long as the cylinder diameters are identical, the relative speed of the tape and the head is the same for video signals of either frame frequency fN or fP.

REFERENCES:
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patent: 4283736 (1981-08-01), Morio et al.
patent: 4330795 (1982-05-01), Foerster et al.
patent: 4514671 (1985-04-01), Louth
patent: 4609952 (1986-09-01), Yoshino et al.
patent: 5067033 (1991-11-01), Wakui
"An Experimental Study For A Home-Use Digital VTR"; C. Yanamitsu et al., Central Research Laboratories; Matsushita Electric Industrial Co., Ltd., Osaka, Japan, ICCE-1989.

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