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:
Dec. 04, 2018
Filed:
May. 25, 2017
Audio-technica Corporation, Machida-shi, Tokyo, JP;
Kodai Tsubone, Machida, JP;
AUDIO-TECHNICA CORPORATION, Machida-Shi, Tokyo, JP;
Abstract
An earphone includes a first driver units reproducing sound waves in a high-frequency range, a second driver units reproducing sound waves other than the high-frequency range of the first driver units, and a unit case for housing the respective driver units and a sound delivery tube for leading sound waves from the driver units to a user's ear canal, the sound delivery tube being formed to communicate with the unit case. A sound emission axis of the first driver units and a sound emission axis of the second driver units are disposed in parallel to each other, and the sound emission axis of the first driver unit passes through in an opening of the sound delivery tube. This construction, including multiple driver units for producing different frequency ranges, allows to provide an earphone in which attenuation of high-frequency components in particular is reduced.