Power extender for smart-home controllers using 2-wire communication
US11855712B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 8, 2022 |
| Grant date | Dec 26, 2023 |
| Priority date | — |
| Expiry date | Aug 8, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K2005/00013
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method of powering a controller using an intermediate device with power from an environmental system may include receiving current from a power wire from the environmental system; passing the current from the power wire to a second command wire from the controller; monitoring the current flowing between the power wire and the second command wire while the current is below a threshold indicative of an amount of current used to power the controller from the environmental system; detecting when the current flowing between the power wire and the second command wire exceeds the threshold indicating that the controller is sending a command to the environmental system to perform the function; and sending a command to environmental system using a first command wire from the environmental system after detecting that the current exceeds the threshold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.