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:
Jan. 02, 2018
Filed:
May. 22, 2015
Apple Inc., Cupertino, CA (US);
Nathan P. Bosscher, Campbell, CA (US);
Brad G. Boozer, Saratoga, CA (US);
Craig M. Stanley, Campbell, CA (US);
Jeffrey C. Olson, Saratoga, CA (US);
John J. Baker, Cupertino, CA (US);
Phillip Michael Hobson, Menlo Park, CA (US);
Stephen Brian Lynch, Portola Valley, CA (US);
Apple Inc., Cupertino, CA (US);
Abstract
An electronic device may have a housing. The housing may enclose an interior cavity. A speaker may be mounted in an opening in the housing. The interior cavity may serve as a sealed back volume for the speaker during normal operation of the speaker. During normal operation, control circuitry in the interior cavity plays audio content through the speaker. When it is desired to cool the control circuitry and the speaker, the control circuitry supplies a subaudible signal to the speaker. Airflow regulators having one-way valves and valves that are controlled by the control circuitry are mounted in the housing. Movement of a diaphragm in the speaker when the subaudible speaker is applied causes the diaphragm to pump air through the airflow regulators, creating a cooling airflow through the interior cavity.