Electronic device with card interface
US8015338B2 · kind B2 · utility
2Cited by
40References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 14, 2010 |
| Grant date | Sep 6, 2011 |
| Priority date | — |
| Expiry date | Jul 14, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K7/10
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
When initializing a card-shaped device inserted in a card interface, operation mode acquiring means incorporated in an electronic device acquires operation mode information, stored in a register file incorporated in the card-shaped device, by a predetermined procedure using a predetermined pin. Operation mode setting means incorporated in the electronic device executes signal assignment on a plurality of data pins peculiar to an operation mode indicated by the acquired operation mode information, thereby switching a data transfer width, and allowing the card-shaped device to operate in the operation mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.