The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 05, 2016
Filed:
Jun. 21, 2013
Sony Corporation, Minato-ku, JP;
Yasunobu Murata, Tokyo, JP;
Kohei Asada, Kanagawa, JP;
SONY CORPORATION, Tokyo, JP;
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.