Cartridge drop detection device in magnetic tape library...

Details Cartridge drop detection device in magnetic tape library... Cartridge drop detection device in magnetic tape library...

2008-04-15

2008-04-15

Renner, Craig A. (Department: 2627)

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Tape record

C360S069000

Reexamination Certificate

active

07359143

ABSTRACT:
Disclosed is a cartridge drop detection device including a media rack for accommodating a cartridge containing a magnetic tape medium, a tape drive for holding the magnetic tape medium, and a robot for retrieving the cartridge from the media rack and for transporting the cartridge to the tape drive, wherein the cartridge drop detection device comprises: a microphone, installed on a floor, for detecting that the cartridge has dropped on the floor; a vibration detection sensor for detecting vibration applied to a tape library apparatus; and a detection circuit for determining that the cartridge has dropped on the floor when a voltage detected by the microphone and a voltage detected by the vibration detection sensor have exceeded respective threshold values, whereby providing a device which can reliably detect whether any cartridge in the magnetic tape library apparatus has dropped or not.

REFERENCES:
patent: 3-91157 (1991-04-01), None
patent: 5-219827 (1993-08-01), None

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