Method of overcurrent protection for multi-slot flash memory card reader
US7293710B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 3, 2004 |
| Grant date | Nov 13, 2007 |
| Priority date | — |
| Expiry date | Jun 12, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K7/0034
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method of overcurrent protection for multi-slot flash memory card reader mainly includes integrating overcurrent protection circuit and power-supply circuit for the multiple slots of the card reader into one single control chip; and, when the overcurrent protection circuit detects an overcurrent at a particular slot, cutting off power supply to that particular slot of the card reader and enabling an overcurrent state register, so that a signal is provided to firmware in the control chip to display an icon of the card reader on a computer as a state indicating an abnormal condition. Whereby, the card reader and a flash memory card inserted therein, or other apparatus connected thereto would not be damaged when an overcurrent occurs, and a user may clearly know the exact point on the card reader where the overcurrent occurs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.