Enhanced power switch device enabling modular USB PC cards
US7365454B2 · kind B2 · utility
8Cited by
11References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 22, 2003 |
| Grant date | Apr 29, 2008 |
| Priority date | — |
| Expiry date | Jun 10, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F1/266
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An enhanced power switch device is provided for enabling modular USB PC cards. The enhanced power switch may include a card sense circuit for sensing the type of card present, a card power switching circuit for supplying power to a modular USB card, and isolation circuit for isolating conventional PC Card control signals from the modular USB card and a connection circuit for connecting USB signals to the USB Card. The system of the present invention can modified for other bus technologies, in addition to USB bus devices.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.