Method and apparatus for secure module restoration
US7526662B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 2, 2005 |
| Grant date | Apr 28, 2009 |
| Priority date | — |
| Expiry date | Jan 17, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02D30/70
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method and apparatus is provided for power conservation of a hardware module (142) which is coupleable to a portable electronic device (100). The hardware module (142) has unique identification information associated therewith and stored therein. The unique identification information is provided periodically (308) to the portable electronic device (100) and stored therein (207). To conserve power, the portable electronic device (100) sends a power-down notice (212) to the hardware module (142), the module controller (144) stores current state information of the hardware module (142) in a non-volatile memory (146) thereof, and the hardware module (142) is powered off (214).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.