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US Patent 10491984 Speaker device

Patent 10491984 was granted and assigned to Panasonic on November, 2019 by the United States Patent and Trademark Office.

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Patent abstractTimelineTable: Further ResourcesReferences
Is a
Patent
Patent

Patent attributes

Patent Applicant
Panasonic
Panasonic
Current Assignee
Panasonic
Panasonic
Patent Jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
Patent Number
10491984
Date of Patent
November 26, 2019
Patent Application Number
15753258
Date Filed
August 8, 2016
Patent Citations Received
‌
US Patent 12088995 Speaker
3
Patent Primary Examiner
‌
Jesse A Elbin
Patent abstract

Provided is a loudspeaker device that can improve sound quality. The loudspeaker device includes: a loudspeaker housing; a first loudspeaker unit provided in a first wall of the loudspeaker housing; and an acoustic tube communicating an inside and an outside of the loudspeaker housing to each other. The acoustic tube has a predetermined length, and is accommodated in the loudspeaker housing and is helically shaped.

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