Cartridge drop detection device in magnetic tape library apparatus
US7359143B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 22, 2005 |
| Grant date | Apr 15, 2008 |
| Priority date | — |
| Expiry date | Jul 26, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B15/6835
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.