Determining defective devices which generate sound during operation
First Claim
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1. A method for determining whether a device is defective, said method comprising:
- generating a plurality of digital samples representing a plurality of sound signals generated by said device; and
examining said plurality of digital samples to determine whether said device is defective.
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Accused Products
Abstract
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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Citations
28 Claims
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1. A method for determining whether a device is defective, said method comprising:
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generating a plurality of digital samples representing a plurality of sound signals generated by said device; and
examining said plurality of digital samples to determine whether said device is defective. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A computer readable medium carrying one or more sequences of instructions for causing a system to determine whether a device is defective, wherein execution of said one or more sequences of instructions by one or more processors contained in said system causes said one or more processors to perform the actions of:
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receiving a plurality of digital samples representing a plurality of sound signals generated by said device; and
examining said plurality of digital samples to determine whether said device is defective. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A digital processing system for determining whether a device is defective, said digital processing system comprising:
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means for receiving a plurality of digital samples representing a plurality of sound signals generated by said device; and
means for examining said plurality of digital samples to determine whether said device is defective. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28)
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Specification