System and method for delaying a wake-up signal
US5996082A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 16, 1995 |
| Grant date | Nov 30, 1999 |
| Priority date | — |
| Expiry date | Oct 16, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2330/022
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A pen-based personal computer includes a main power switch for initial power-up. The pen-based portable personal computer includes a keyboard controller which controls power management of the battery and places the pen-based portable personal computer in a hibernate state after a predetermined period of inactivity. The system can be awakened from the hibernate state by contact of a passive stylus with the digitizer panel. In order to place the power management of the battery under the control of the keyboard controller, a wake-up signal is generated at power-up just long enough to enable the keyboard controller to take control of the power management of the battery.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.