Headphone on-head detection using differential signal measurement
US10051371B2 · kind B2 · utility
0Cited by
22References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 31, 2014 |
| Grant date | Aug 14, 2018 |
| Priority date | — |
| Expiry date | Mar 31, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2460/03
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A headset includes a first speaker coupled to a first compensation network and a second speaker coupled to a second compensation network. The headset also includes a differential sensing module configured to determine a differential signal between a first input signal associated with the first speaker and a second input signal associated with the second speaker. The differential signal is used to determine whether the headset is detected as worn by a user. A controller adjusts a power level supplied to the headset based on the differential signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.