Open earphone
US-2024422466-A1 · Dec 19, 2024 · US
Noise suppression device, system, and method
US9190071B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9190071-B2 |
| Application number | US-201213618761-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 14, 2012 |
| Priority date | Sep 14, 2012 |
| Publication date | Nov 17, 2015 |
| Grant date | Nov 17, 2015 |
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Abstract
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A noise-suppression assembly of a mechanical drive system having a rotational frequency includes an audio filter unit configured to receive a first audio signal and a timing signal of the mechanical drive system. The audio filter unit generates a noise-cancellation signal based on a frequency of the timing signal to suppress a noise generated by the mechanical drive system and to apply the noise-cancellation signal to the first audio signal to produce a filtered first audio signal. The frequency of the timing signal is based on the rotational frequency of the mechanical drive system.
First claim
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What is claimed is: 1. A noise-suppression assembly of a mechanical drive system having a rotational frequency, the mechanical drive system including a rotor of a helicopter, the assembly comprising: an audio filter unit configured to receive a first audio signal and a timing signal of the mechanical drive system, the audio filter unit configured to generate a noise-cancellation signal based on a frequency of the timing signal, said frequency based on the rotational frequency of t…
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Physics · mapped topic
Physics · mapped topic
Physics · mapped topic
Physics · mapped topic
Physics · mapped topic
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- What does patent US9190071B2 cover?
- A noise-suppression assembly of a mechanical drive system having a rotational frequency includes an audio filter unit configured to receive a first audio signal and a timing signal of the mechanical drive system. The audio filter unit generates a noise-cancellation signal based on a frequency of the timing signal to suppress a noise generated by the mechanical drive system and to apply the nois…
- Who is the assignee on this patent?
- Butts Donald J, Welsh William A, Millott Thomas A, and 2 more
- What technology area does this patent fall under?
- Primary CPC classification G10L21/0208. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Nov 17 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).