System and method for power conservation in a wireless communication handset
US6278887A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 5, 1999 |
| Grant date | Aug 21, 2001 |
| Priority date | — |
| Expiry date | Feb 5, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02D30/70
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A wireless communication handset includes at least one processor and is configured to shutdown at least one of a display, display backlight and keypad backlight of the handset. A first timer is set when the display is turned on, and the first timer is started to time a display time-out period. If a keypad entry is made by a user during the timeout period, the first timer is reset. On the other hand, if a keypad entry is not made by the user before the time-out period expires, the display is shut off to conserve power. Likewise, a time-out period can be implemented to control automatic shut-off of other power-consuming features such as a display backlight and a keypad backlight. Features can be included to automatically re-enable shut-down features upon the occurrence of events such as the receipt of an incoming call, a keypad entry, or the opening of a flip panel on the handset.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.