Predicting end of battery life for a remote controller device
US9369656B2 · kind B2 · utility
2Cited by
1References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 31, 2014 |
| Grant date | Jun 14, 2016 |
| Priority date | — |
| Expiry date | Jul 22, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/42208
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A remote control is powered by multiple batteries connected in series. The remote control includes a voltage comparison circuit configured to compare a midpoint voltage from a node connecting two of the batteries to a reference voltage. The remote control is able to determine if there is a non-uniform drain rate in the batteries based on the comparison.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.