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. 12, 2016
Filed:
Jun. 03, 2011
Yash Modi, Cupertino, CA (US);
Brian Sander, San Jose, CA (US);
Jeffrey J. Terlizzi, San Francisco, CA (US);
Jahan Minoo, San Jose, CA (US);
Wendell B. Sander, Los Gatos, CA (US);
Yash Modi, Cupertino, CA (US);
Brian Sander, San Jose, CA (US);
Jeffrey J. Terlizzi, San Francisco, CA (US);
Jahan Minoo, San Jose, CA (US);
Wendell B. Sander, Los Gatos, CA (US);
Apple Inc., Cupertino, CA (US);
Abstract
Electronic devices may provide microphone bias voltages to accessories. The accessories may include circuitry powered from the microphone bias voltages. The output impedances and the voltages of the microphone bias voltages may be adjusted during operation of the electronic devices. An electronic device may provide a bias voltage to an accessory, may lower the output impedance of the bias voltage, and may increase the voltage of the bias voltage during operation of the electronic device. Accessories that received bias voltages with lowered impedances or raised voltage levels may exhibit greater tolerance to faults such as moisture-based shorts and may be able to continue operating even in the presence of some faults.