Resume on pen contact
US5974558A · kind A · utility
47Cited by
70References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 16, 1995 |
| Grant date | Oct 26, 1999 |
| Priority date | — |
| Expiry date | Oct 16, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02D30/70
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A pen-based portable personal computer utilizes a passive stylus. In order to conserve battery power, the system automatically goes into a low-power state after a predetermined period of inactivity. In the low-power state, minimal power is provided to a digitizer panel in order to enable the digitizer panel to sense contact by the passive stylus. Once the passive stylus comes in contact with the digitizer panel, the pen-based portable computer system is awakened and placed in a full-power state.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.