US Patent 7940943 Speaker driving apparatus
Patent 7940943 was granted and assigned to Yamaha (yacht) on May, 2011 by the United States Patent and Trademark Office.
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Patent abstract
A speaker driving apparatus includes a speaker enclosure whose inside is tightly closed, at least two speakers that are provided to the speaker enclosure so as to have a common rear space, and a signal supplying unit that supplies a stereo left channel signal to the speaker in a first group and supplies a stereo right channel signal to the speaker in a second group. The at least two speakers being divided into two groups as the first group and the second group.
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Patent Inventor Names
Akira Arai0
Masao Noro0
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US Patent 07940943 Speaker driving apparatus US Patent 7940943 Speaker driving apparatus
Infobox
Patent Number
079409430
Patent Number
79409430
Edits on 23 Sep, 2022
Golden AI
Infobox
Is a
Current Assignee
Patent Jurisdiction
Patent Number
079409430
Date of Patent
May 10, 2011
0Patent Application Number
115807370
Date Filed
October 12, 2006
0Patent Primary Examiner
Edits on 7 Dec, 2021
Golden AI
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Infobox (+8 properties)
US Patent 07940943 Speaker driving apparatus
Infobox
Is a
Current assignee
Patent jurisdiction
Patent number
07940943
Date of patent
May 10, 2011
Patent application number
11580737
Date Filed
October 12, 2006
Patent primary examiner
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