Open earphone
US-2024422466-A1 · Dec 19, 2024 · US
Controller for a headphone arrangement
US9014382B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9014382-B2 |
| Application number | US-201113521065-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 26, 2011 |
| Priority date | Feb 2, 2010 |
| Publication date | Apr 21, 2015 |
| Grant date | Apr 21, 2015 |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
A controller for a headphone arrangement ( 101 ) comprises a drive circuit ( 203 ) which generates a signal for an earphone ( 105 ) from an audio signal. The drive signal is fed to the earphone ( 105 ) causing this to reproduce the audio signal. A first circuit ( 217 ) determines a signal level for the audio signal and a second circuit ( 209 ) determines an ambient sound level from a microphone signal from a microphone ( 109 ). A third circuit ( 211 ) determines an attenuated ambient sound level for the user from the microphone signal and an ambient sound attenuation of the earphone ( 105 ). A gain controller ( 205 ) controls the gain of the audio drive circuit ( 203 ) for the audio signal in response to the ambient sound level, the attenuated ambient sound level and the signal level. The dynamic and automated gain control may be used to reduce the risk of hearing damage e.g. by automatically restricting the sound level experienced by the user to the ambient sound level.
First claim
Opening claim text (preview).
The invention claimed is: 1. A controller for a headphone arrangement comprising: an audio drive circuit for generating a drive signal for an earphone of the headphone arrangement from an audio signal, and for feeding the drive signal to the earphone to cause the earphone to reproduce the audio signal at a first sound level; a first circuit for determining a signal level of the audio signal; a receiver for receiving a microphone signal from a microphone; a second circuit for…
Assignees
Inventors
Classifications
Electricity · mapped topic
Electricity · mapped topic
- H04R1/1083Primary
Electricity · mapped topic
Patent family
Related publications grouped by family.
External sources
Next steps
Free tools are coming soon. Tell us what you want to track and we'll notify you.
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US9014382B2 cover?
- A controller for a headphone arrangement ( 101 ) comprises a drive circuit ( 203 ) which generates a signal for an earphone ( 105 ) from an audio signal. The drive signal is fed to the earphone ( 105 ) causing this to reproduce the audio signal. A first circuit ( 217 ) determines a signal level for the audio signal and a second circuit ( 209 ) determines an ambient sound level from a microphone…
- Who is the assignee on this patent?
- Van De Par Steven Leonardus Josephus Dimphina Elis, Kohlrausch Armin Gerhard, Koninkl Philips Nv
- What technology area does this patent fall under?
- Primary CPC classification H04R1/1083. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Apr 21 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).