Method for extending the useful life of a cordless telephone backup battery during a power outage condition
US6625281B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 25, 2000 |
| Grant date | Sep 23, 2003 |
| Priority date | — |
| Expiry date | Apr 25, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02D30/70
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The disclosure discloses a method for extending the length of time over which a cordless telephone system can operate without an external source of power. The method involves detecting a power supply outage, determining that a telephone call is not currently being handled, placing the portable unit into a mode of reduced power consumption, and placing the base unit into a mode of reduced power consumption. After a period of time, the base unit resumes functionality, determines whether a call is being initiated, and handles any such calls. If the system is not active, the base unit re-enters its mode of reduced power consumption, and the cycle is repeated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.