Monitoring tape position in a magnetic recording/reproducing app

Details Monitoring tape position in a magnetic recording/reproducing app Monitoring tape position in a magnetic recording/reproducing app

1996-04-02

1998-09-08

Sniezek, Andrew L.

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the record

360 722, 360 7305, G11B 1518

Patent

active

058053719

ABSTRACT:
A magnetic recording/reproducing apparatus includes a mechanism body, a control circuit, and a memory circuit. The mechanism body has a loading mechanism, a tape traveling mechanism, and a reel revolution count detection mechanism for outputting a signal corresponding to a revolution count of the reel. The control circuit drive-controls the loading mechanism and the tape traveling mechanism, calculates a cumulative revolution count of the reel from an output of the reel revolution count detection mechanism, and controls recording and reproduction of data, including a video signal and a track number, on and from the magnetic tape. The memory circuit stores the cumulative revolution count of the reel and the track number upon recording and reproduction of the data on and from the magnetic tape. The control circuit reads out form the memory circuit a cumulative revolution count of the reel corresponding to a track number of a target position to which the magnetic tape is to be positioned, compares the readout cumulative revolution count with the cumulative revolution count of the reel of the magnetic tape that travels in a non-contact state with respect to the rotary drum, and positions the magnetic tape.

REFERENCES:
patent: 4636880 (1987-01-01), Debell
patent: 5179479 (1993-01-01), Ahn
patent: 5195000 (1993-03-01), Suzuki
patent: 5475542 (1995-12-01), Bentley et al.
patent: 5638229 (1997-06-01), Shingu et al.

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