Magnetic recording and reproducing apparatus arranged to save el

Details Magnetic recording and reproducing apparatus arranged to save el Magnetic recording and reproducing apparatus arranged to save el

1997-11-06

2000-02-01

Sniezek, Andrew L.

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the record

360 745, G11B 1508

Patent

active

060210168

ABSTRACT:
A magnetic recording and reproducing apparatus arranged to use a magnetic tape. The apparatus operates to derive the current taken-up position of the magnetic tape from the signals that are proportional to the rotation frequencies of a capstan motor, a supply reel and a take-up reel. Only when the taken-up position is near the tape end, the apparatus activates LEDs (light emitting elements) for sensing the tape end and photo-transistors (light receiving elements), for sensing the tape end.

REFERENCES:
patent: 5222003 (1993-06-01), Miller et al.
patent: 5557483 (1996-09-01), Takahashi
"Introduction to Home VTR", edited by Corona Publishing Co., Ltd., pp. 123-133, 1981.

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