Peripheral device using two microprocessors and two buses for automatically updating program after judging that update data is stored in a portable recording medium
US5774742A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 16, 1995 |
| Grant date | Jun 30, 1998 |
| Priority date | — |
| Expiry date | Feb 16, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C16/102
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
When a portable recording medium is judged to have been loaded in a peripheral device, a microprocessor of the peripheral device checks whether the portable recording medium is a recording medium bearing update data for use updating a program to be executed by the micro-processor. If the portable recording medium is a recording medium bearing update data for updating such a program, the update data is read from the portable recording medium and the program is updated in accordance with the read update data. If, however, the portable recording medium is not a recording medium bearing update data for updating a the program, the recording medium is ejected from the peripheral device. The program in the peripheral device can thus be updated even if the peripheral device is not connected to a host computer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.