Sealing Determination Method and Device
AssigneeST R&DTech, LLC
InventorJohn KEADY
Life of this patent
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Abstract
Directed to a method of seal determination, by sending a first signal to a speaker; emitting audio content from the speaker in response to the speaker receiving the first signal, wherein the audio content is emitted into a chamber formed by a device inserted into a channel, wherein the speaker is in the device; measuring sound in the chamber with a microphone, wherein the microphone generates a microphone signal and wherein the microphone is in the device; converting the microphone signal into a spectrum; generating a ratio of intensities of the spectrum at a selected frequency, fs, and a multiple of the selected frequency mfs; and comparing the ratio to a threshold value to determine whether the device is adequately sealed in the channel.
Claims20
A method comprising:
- sending a first signal to a speaker;
- emitting audio content from the speaker in response to the speaker receiving the first signal, wherein the audio content is emitted into a chamber formed by a device inserted into a channel, wherein the speaker is in the device;
- measuring sound in the chamber with a microphone, wherein the microphone generates a microphone signal and wherein the microphone is in the device;
- converting the microphone signal into a spectrum;
- generating a ratio of intensities of the spectrum at a selected frequency fs, and a multiple of the selected frequency mfs;
- and
- comparing the ratio to a threshold value to determine whether the device is adequately sealed in the channel.
A method comprising:
- sending a first signal to a speaker, wherein the first signal has a peak selected frequency fs, wherein fs>450 Hz;
- emitting audio content from the speaker in response to the speaker receiving the first signal, wherein the audio content is emitted into a chamber formed by a device inserted into a channel, wherein the speaker is in the device;
- measuring sound in the chamber with a microphone, wherein the microphone generates a microphone signal and wherein the microphone is in the device;
- converting the microphone signal into a spectrum;
- generating a difference of intensities of the spectrum at a multiple of the selected frequency mfs, wherein the multiple m>2;
- and
- comparing the difference to a threshold value to determine whether the device is adequately sealed in the channel.
Dependencies are inferred from the claim text.