Foreign substance detecting circuit and electronic device including the same
US10862246B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 19, 2018 |
| Grant date | Dec 8, 2020 |
| Priority date | — |
| Expiry date | Jan 22, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01R2201/20
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Provided are a foreign substance detecting circuit, an electronic device including the foreign substance detecting circuit, and a method of detecting foreign substance. The electronic device includes a connector connected to an external cable and including a plurality of pins, a foreign substance detecting circuit configured to, when the cable is connected to the connector, detect a resistance from a first pin that is set to be in an open state or to be connected to a pull-down resistor from among the plurality of pins in a state where the cable is connected, and determine whether there is a foreign substance in the connector, and an application processor configured to control operations in the electronic device for performing a post-process when there is the foreign substance in the connector, according to a detection result from the foreign substance detecting circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.