Invention Grant
- Patent Title: Apparatus and method for detecting insertion anomaly of an audio jack
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Application No.: US14597910Application Date: 2015-01-15
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Publication No.: US09794708B2Publication Date: 2017-10-17
- Inventor: John R. Turner
- Applicant: Fairchild Semiconductor Corporation
- Applicant Address: US CA San Jose
- Assignee: Fairchild Semiconductor Corporation
- Current Assignee: Fairchild Semiconductor Corporation
- Current Assignee Address: US CA San Jose
- Agency: Brake Hughes Bellermann LLP
- Main IPC: H04R29/00
- IPC: H04R29/00 ; H04R1/10

Abstract:
Apparatus and methods for detecting audio jack connection anomalies such as moisture or a partial insertion of an audio jack plug with an audio jack receptacle are provided. In an example, a method for detecting an audio jack insertion anomaly can include ramping on a first detection current source of a detection circuit coupled to a detection terminal of a first audio jack connector, receiving a reference information at a comparator of the detection circuit, receiving a voltage of the detection terminal at the comparator, providing comparison information at an output of the comparator, the comparison information indicative of a comparison of the voltage of the detection terminal and the reverence information, and wherein a first state of the comparison information indicates the audio jack insertion anomaly is due to moisture at the first audio jack connector.
Public/Granted literature
- US09769579B2 Apparatus and method for detecting insertion anomaly of an audio jack Public/Granted day:2017-09-19
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