Addressable computer tape drive activation system
US5265208A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 30, 1991 |
| Grant date | Nov 23, 1993 |
| Priority date | — |
| Expiry date | Apr 30, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/0682
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A selectible computer tape drive activation and deactivation technique apparatus is disclosed. The invention integrates with existing floppy controllers in a manner which allows activation and deactivation of a computer tape drive without the need for select lines. The invention programs the floppy controller so as to generate an activation command which may be appended by an address to specify the specific drive involved. Both the command and the argument are chosen to be consistent with existing Quarter Inch Committee standards. With respect to the deselect method, additionally a failsafe, independent deactivation path exists to turn off the tape drive in the event any conflict in drive operations were to exist.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.