Portable computer with time-sensitive tri-modal power management switch
US5987613A · kind A · utility
37Cited by
1References
38Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 20, 1994 |
| Grant date | Nov 16, 1999 |
| Priority date | — |
| Expiry date | Dec 20, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F1/3203
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A portable computer in which a single switch is positioned to be closed when the case is closed, and also to be readily operable by the user's finger. Software polls the switch. If the switch is briefly depressed, the software detects that the user is requesting entry into standby mode, and accordingly powers down certain input/output functions until new stimulus is received. If the switch is held down for a long time by the user closing the case cover, or manually holding the button down for a long time, the software causes the system to enter sleep mode (its lowest power mode).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.