Method for detecting damage to the transducer head and/or tape guide of an interactive media device
US6657806B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 19, 2000 |
| Grant date | Dec 2, 2003 |
| Priority date | — |
| Expiry date | Dec 14, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2005/0013
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A data tape drive for recording information on the data tape of a tape cartridge has a transducer head with air bleed slots that define side walls, a tape guide, and a device for detecting damage to the transducer head and tape guide. The damage detection device has a conductor loop that is located along the outer edges of the air bleed slots and tape guide for detecting any brittle fracture damage that may be present. The conductor loop is a thin filament of wire that is preferably attached to the ends of the side walls. When the transducer head or tape guide experiences a fracture, such as a fracture in one of the side walls, the delicate filament breaks and forms an open circuit. The open circuit in the conductor loop is detected by the data tape drive so that remedial actions can be taken. Without the damage detection device, large quantities of the data tape moving past the transducer head and/or tape guide would be scraped over or gouged by the fracture and permanently damaged, including loss of the information recorded on the data tape.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.