Recording and/or reproducing apparatus

Details Recording and/or reproducing apparatus Recording and/or reproducing apparatus

1990-02-13

1991-03-12

Wolff, John H.

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the record

360 69, 360 71, 360 9906, 360137, G11B 1544

Patent

active

049997211

ABSTRACT:
A recording and/or reproducing apparatus using a recording medium such as a magnetic disc or drum. The apparatus includes apparatus for driving the recording medium, apparatus for detecting the movement of the recording medium, and apparatus for stopping the drive apparatus when the detection apparatus does not detect the movement of the recording medium within a predetermined period of time after the drive apparatus begins to operate.

REFERENCES:
patent: 4376293 (1983-03-01), Teramura et al.
patent: 4413291 (1983-11-01), Veki et al.
patent: 4458273 (1984-07-01), Johnson
patent: 4523239 (1985-06-01), Iwasawa
patent: 4590532 (1986-05-01), Saito
"Circuitry for Testing the Translatory Movement of a Magnetic Diskette into a Disk Drive", by J. Olson, IBM TDB, vol. 21, No. 11 (Apr. 1979), pp. 4620-4623.
Murakami, "Drive Control Circuit of Motor for Floppy Disk", Patent Abstracts of Japan, vol. 14, No. 160, Aug. 21, 1980, p. 35.

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