Headphone device, wearing state detection device, and wearing state detection method
US9232308B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 21, 2013 |
| Grant date | Jan 5, 2016 |
| Priority date | — |
| Expiry date | Feb 9, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2460/03
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Provided is a headphone device including an outside microphone attached to a position at which an extraneous sound is picked up without passing through a shield in a state in which a user is wearing the headphone device, an inside microphone attached to a position at which the extraneous sound is picked up via the shield in the state in which the user is wearing the headphone device, a driver unit which performs an acoustic output, and a wearing state detection unit which detects a wearing or non-wearing state using a signal comparison result between sound signals obtained by the outside and inside microphones, respectively, a pre-stored non-wearing state reference value which is a signal comparison result when the extraneous sound arrives in the non-wearing state, and a pre-stored wearing state reference value which is a signal comparison result when the extraneous sound arrives in the wearing state.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.