Power management for IP PBX during power failure
US9232045B1 · kind B1 · utility
5Cited by
3References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 29, 2012 |
| Grant date | Jan 5, 2016 |
| Priority date | — |
| Expiry date | Jun 29, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02D30/50
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A telecommunication system is described that allocates backup power to telephones based on telephone usage. When power to the telecommunication system from a primary source, such as from an electrical utility company, is lost, a backup power source is used to keep the telecommunication system functioning. Because the backup power source has a limited amount of energy, only telephones with a high priority are fully powered. Other telephones are provided with reduced power or receive no power. As the energy level of the backup power source is reduced, the telephone priorities are adjusted.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.