发明名称 |
Determining defective devices which generate sound during operation |
摘要 |
Determining whether a device is defective by analyzing the sound signals generated by the device. Digital samples are generated to represent the sound signals. Digital samples are transformed from the time domain to the frequency domain to generate a frequency spectrum. By comparing the levels of intensity at a corresponding frequency to the threshold levels of intensity, defective devices can be determined.
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申请公布号 |
US2003061034(A1) |
申请公布日期 |
2003.03.27 |
申请号 |
US20020196912 |
申请日期 |
2002.07.17 |
申请人 |
TEXAS INSTRUMENTS INCORPORATED |
发明人 |
GUPTA AJAY |
分类号 |
G01N29/14;G01N29/46;G01N29/48;(IPC1-7):G10L19/00 |
主分类号 |
G01N29/14 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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