Headset model identification with a resistor
US11856373B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 27, 2021 |
| Grant date | Dec 26, 2023 |
| Priority date | — |
| Expiry date | Oct 23, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2420/05
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An apparatus includes a wire connector configured to receive a connection to an external device. The external device includes a speaker and is configured to output audible sounds. The apparatus includes a connection detection circuit configured to determine whether the external device has connected to the apparatus through the wire connector. The apparatus includes an output test circuit configured to, upon detection of a connection to the external device, issue a test signal to the external device, evaluate a response to the test signal, the response based upon a resistance value within the external device, and determine an identity of the external device based upon the response to the test signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.