Lighting control device with removable power supply charge state indication and a method therefor
US10075003B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 19, 2017 |
| Grant date | Sep 11, 2018 |
| Priority date | — |
| Expiry date | Jun 19, 2037 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Examples of methods and devices provide a charge level indication of a removable power source of a lighting control device. An example method may include receiving an input indication. A duration of the input is measured. If the measured duration exceeds a predetermined input duration threshold, an indication of a charge level of a removable power supply is obtained. The obtained charge level indication is compared, by a control unit, to a threshold charge level of the power supply. The threshold charge level is indicates an amount of charge remaining in the power supply. In response to a comparison result, an indicator light signal is applied to an indicator light. An example device may include a removable electrical power supply, an input device, an indicator light, and a control unit all of which may cooperate to perform a disclosed method.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.