Systems and methods for visualizing effects of a frequency lowering scheme implemented by a hearing device
US-11974098-B2 · Apr 30, 2024 · US
Hearing aid and a method of detecting and attenuating transients
US8929574B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8929574-B2 |
| Application number | US-201113183560-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 15, 2011 |
| Priority date | Jan 20, 2009 |
| Publication date | Jan 6, 2015 |
| Grant date | Jan 6, 2015 |
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Abstract
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A hearing aid has means ( 15 ) for detecting fast transients in the input signal and means ( 16, 12, 13 ) for attenuating the detected transients prior to presenting the signal with the attenuated transients to a user. Detection is performed by measuring the peak difference of the signal upstream of a band split filter bank ( 11 ) and comparing the peak difference against at least one peak difference limit. Then, if a transient is detected, a state machine ( 20 ) analyzes the peak level and the absolute average level of the signal and engages a gain calculator ( 12 ) to follow either the peak level or the absolute average level of the input signal for at least the duration of the transient in order to attenuate the transient. The engagement of the gain calculator ( 12 ) is performed in each frequency band dependent of the detected transient. The invention further provides a method for detecting fast transients.
First claim
Opening claim text (preview).
We claim: 1. A hearing aid comprising a microphone, a signal processor and an output transducer, said signal processor having a filter bank for splitting an input signal into a plurality of time domain frequency channel input signals, and a summer for summing output signals from said channels, each frequency channel comprising a channel sound level calculator, a channel gain calculator and a channel amplifier, each of the channel sound level calculators being adapted for deriving a…
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Electricity · mapped topic
- H04R25/356Primary
Electricity · mapped topic
Physics · mapped topic
Electricity · mapped topic
Physics · mapped topic
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- What does patent US8929574B2 cover?
- A hearing aid has means ( 15 ) for detecting fast transients in the input signal and means ( 16, 12, 13 ) for attenuating the detected transients prior to presenting the signal with the attenuated transients to a user. Detection is performed by measuring the peak difference of the signal upstream of a band split filter bank ( 11 ) and comparing the peak difference against at least one peak diff…
- Who is the assignee on this patent?
- Nielsen Jakob, Norgaard Peter Magnus, Widex As
- What technology area does this patent fall under?
- Primary CPC classification H04R25/356. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Jan 06 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).