Power polarity detection for accessory mode change
US10608450B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 22, 2018 |
| Grant date | Mar 31, 2020 |
| Priority date | — |
| Expiry date | Aug 17, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J7/00034
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A portable electronic accessory is adapted to initiate an operational mode change in a portable electronic accessory responsive to a user-initiated instruction received along a standard power line. The portable electronic accessory includes a rechargeable battery, electrical leads adapted to couple with a charging source to charge the rechargeable battery, and a polarity detection circuit configured to detect a power polarity switch of the electrical leads when the portable electronic accessory is coupled to the charging source. The portable electronic accessory further includes a controller that initiates a device mode change responsive to the power polarity switch detected by the polarity detection circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.