PC card with automated drag and sleep function
US6351820B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 26, 1999 |
| Grant date | Feb 26, 2002 |
| Priority date | — |
| Expiry date | Apr 26, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02D30/50
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A PC card having automated Drag and Sleep function is equipped with Drag and Sleep control circuit to connect to the controller of the PC card, a connector unit and the other devices. As the connection of the connector unit to the external system (the external networks or devices) is cut off, the Drag and Sleep control circuit generates and transmits interrupt-signal to the controller to enable the PC card to get into sleep state; when the disconnected connector unit is once again connected to the external system (such as the external networks or devices), the Drag and Sleep control circuit generates and transmits interrupt-signal to the controller to enable the PC card to resume normal state, thus the PC card can effectively save energy because it can greatly lower the electric current consumption under the sleep state.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.