Apparatus and methods for detecting a microphone condition
AssigneeCirrus Logic, Inc.
InventorsAnindya Bhattacharya, Bhoodev Kumar, Jaimin Mehta, Yongsheng Shi, Aleksey S. Khenkin, John L. Melanson
Life of this patent
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Abstract
A method and apparatus for detecting a microphone condition of a microphone, the method comprising: applying an electrical stimulus to a microphone; measuring an electrical response to the electrical stimulus at the microphone; comparing the electrical response to an expected response; and determining the microphone condition based on the comparison.
Claims24
A method for detecting a microphone condition of a microphone, the method comprising:
- applying an electrical stimulus to a microphone;
- measuring an electrical response to the electrical stimulus at the microphone;
- detecting the presence of electrical interference in a first component of the measured electrical response;
- discarding the first component of the measured electrical response;
- comparing a second component of the electrical response different to the first component to an expected response;
- and
- determining the microphone condition based on the comparison.
A method for detecting a microphone condition of a microphone, the method comprising:
- applying an electrical stimulus to a microphone;
- measuring an electrical response to the electrical stimulus at the microphone;
- comparing the electrical response to an expected response;
- determining the microphone condition based on the comparison;
- and
- determining whether the microphone is operating in a high performance mode or a low performance mode;
- wherein the expected response is determined based on whether the microphone is operating in the high performance mode or the low performance mode.
An apparatus for detecting a microphone condition of a microphone, the apparatus comprising processing circuitry and a non-transitory machine readable medium which, when executed by the processing circuitry, cause the apparatus to perform a method comprising:
- applying an electrical stimulus to a microphone;
- measuring an electrical response to the electrical stimulus at the microphone;
- detecting the presence of electrical interference in a first component of the measured electrical response;
- discarding the first component of the measured electrical response;
- comparing a second component of the electrical response different to the first component to an expected response;
- determining the microphone condition based on the comparison.
An apparatus for detecting a microphone condition of a microphone, the apparatus comprising processing circuitry and a non-transitory machine readable medium which, when executed by the processing circuitry, cause the apparatus to perform a method comprising:
- applying an electrical stimulus to a microphone;
- measuring an electrical response to the electrical stimulus at the microphone;
- comparing the electrical response to an expected response;
- determining the microphone condition based on the comparison;
- and
- determining whether the microphone is operating in a high performance mode or a low performance mode;
- wherein the expected response is determined based on whether the microphone is operating in the high performance mode or the low performance mode.
Dependencies are inferred from the claim text.