US Patent 9769559 Sound transducer acoustic back cavity system
Patent 9769559 was granted and assigned to Nokia on September, 2017 by the United States Patent and Trademark Office.
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Patent abstract
An apparatus including a housing member and an airflow spreader. The housing member includes an acoustic back cavity for a sound transducer and at least two second cavities in the housing member spaced from the acoustic back cavity. The airflow spreader is connected to the housing member. The airflow spreader includes a conduit system connecting the acoustic back cavity directly with each of the at least two second cavities through the airflow spreader.
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Patent Citations Received
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Patent Inventor Names
Shengrong Shi0
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US Patent 09769559 Sound transducer acoustic back cavity system US Patent 9769559 Sound transducer acoustic back cavity system
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Patent Number
09769559
Patent Number
9769559
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US Patent 09769559 Sound transducer acoustic back cavity system
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Is a
Patent applicant
Current assignee
Patent jurisdiction
Patent number
09769559
Date of patent
September 19, 2017
Patent application number
15136002
Date Filed
April 22, 2016
Patent primary examiner
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