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US 8,804,972 B2Granted
Earplug sealing test
AssigneeSource Of Sound Ltd.
InventorsNir Klein, Yaakov Butbul
Life of this patent
Estimating the term…
Abstract
Methods and system for a sealing test comprising the steps of: sealing a predefined volume of gas; sampling a predefined frequency range, whereby there is no need to inject a predefined sound wave while sampling the predefined frequency range; and determining whether the predefined volume of gas is sealed or unsealed according to the sampled frequency range.
Claims12
An electronic earplug comprising:
- a microphone, coupled to a sound tube directed towards the eardrum, such that the microphone measures interior sounds existing in the ear canal,
- a sealing element, and
- means for performing automatic sealing test without injecting a predefined sound wave into the ear canal for performing the automatic sealing test.
A device comprising:
- a microphone, coupled to a sound tube directed towards the eardrum, such that the microphone measures interior sounds existing in the ear canal,
- a sealing element,
- a storage element operative to store data characterizing a frequency response of a sealed volume of gas, and
- a processing unit operative to analyze samples received from the microphone and to determine, without injecting a specific sound wave into the volume of gas, whether the volume of gas in which the microphone is operating in is sealed.
1 more element
Dependencies are inferred from the claim text.