Method and apparatus for adjusting transmission power in a two-way device based on battery impedance
US9131452B2 · kind B2 · utility
11Cited by
12References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 25, 2013 |
| Grant date | Sep 8, 2015 |
| Priority date | — |
| Expiry date | Mar 8, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02D30/70
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for adjusting transmission power in a portable two-way radio device allows the device to determine an expected battery voltage drop for a subsequent transmit event, based on present transmit power settings and battery impedance, and change the power setting for the subsequent transmit event if the battery voltage is likely to drop below a shutdown threshold at the present power setting or if the expected battery voltage drop will cause the battery voltage to be substantially above the shutdown voltage level and the present power setting is below an optimal level.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.