Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Tseng Feng Wen0
Hsin Hao Wen0
Jing Luen Wen0
Date of Patent
January 1, 2019
0Patent Application Number
160208920
Date Filed
June 27, 2018
0Patent Citations Received
Patent Primary Examiner
Patent abstract
The present invention is directed to a headphone device including zones to separate different frequency ranges for enhancing and improving sound quality. The headphone device includes more than one cavities and second auxiliary holes. The second auxiliary holes are configured for most bass or low-frequency to enter a second cavity through the second auxiliary holes and to have a better frequency division effect and to improve the audio quality of the headphone device.
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