Microcomputer control system in which programs can be modified and newer versions of the modified programs being detected and executed
US7174537B2 · kind B2 · utility
4Cited by
11References
7Claims
0Family size
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Key dates
| Filing date | Oct 11, 2002 |
| Grant date | Feb 6, 2007 |
| Priority date | — |
| Expiry date | Jun 13, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F9/24
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Programs or data in a mask ROM incorporated in a one-chip microcomputer can be modified from the outside. With version information appended to each of a mask ROM 2 incorporated in a one-chip microcomputer 6 and an external EPROM 5, by comparing the version numbers, programs (tasks and subroutines) of a new version can always be executed and update data of a new version can be used. The programs can be customized for each user.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.