Motion optimization for a tape storage system
US5500803A · kind A · utility
Inventors
Key dates
| Filing date | Nov 23, 1993 |
| Grant date | Mar 19, 1996 |
| Priority date | — |
| Expiry date | Nov 23, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2220/90
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An automated cartridge system optimizes the time it takes to execute a series of cartridge requests. After cartridge requests are received, the library controller calculates the approximate time it will take to execute each possible sequence of pending cartridge requests. The library controller then executes the first request in the sequence of pending requests which will take the shortest elapsed time. This series of calculations and executions continues until all requests are completed. It is another object of the present invention to carry out the motion optimization in such a manner that assures that a particular cartridge request is not put off indefinitely. Each time a hand or arm is allocated to a request, all other requests waiting for these mechanisms have their calculated execution times reduced to increase the likelihood of execution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.