Apple Patents Earbuds That Auto Adjust Based on Seal Quality

Posted July 5, 2013 at 7:21am by iClarified | Please help us and submit a translation by clicking here | 8908 views

Apple has filed a patent for a new earbud technology that would auto adjust auto levels based on seal quality.

Apple notes that when properly seated in a user's ear, earbuds should form a seal. This allows music to be played back with satisfactory performance. However, poor seals can degrade the sound quality and affect the volume level. Apple sees this as an opportunity for improvement.

Audio performance may be affected by the degree to which the earbuds form seals with the user's ears. To compensate for potential variations in seal quality, seal quality measurements may be made during use of the earbuds and appropriate actions taken. Control circuitry in an electronic device may be used to generate audio output signals during media playback operations. The control circuitry may also generate test signals such as sine wave test tones. Communications circuitry in the control circuitry of the electronic device may communicate with corresponding communications circuitry in control circuitry located in an attached headset.

Seal quality measurements may be made using speaker impedance measurements. With this type of arrangement, the control circuitry of the electronic device and headset may be used to apply signals to the speakers of the earbud while monitoring speaker currents. The signals that are applied to the earbud speakers may be test tones. While applying the test tones, speaker current measurements may be made using a current sensing resistor. Speaker current measurements may also be made by monitoring speaker current flow using a secondary speaker coil and associated current sensing circuitry.

In response to these measurements, Apple could generate informative messages for the user, increasing overall earbud volume, correcting mismatched balance between left and right earbuds, adjusting equalization settings, and make adjustments to noise cancellation circuitry.

The full patent details can be found at the link below...

Read More [via AppleInsider]

Add Comment
The real NoGoodDick - July 6, 2013 at 6:11pm
Can their be a picture of what the new earbud will look like soon?
Trolololo - July 5, 2013 at 8:54am
Apple should put little a accelerometer in each ear bud to test what degree the angle is at. And then give devs the ability to tap into them to see that angle the users head is at to play games. Now just think how amazing that would be to be able to okay games like doodle jump just by moving your head from left to right.
rexology - July 5, 2013 at 7:53am
Now that's an innovation
tom - July 5, 2013 at 8:21am
they should be made to make these things before allowed to patent them ive just applied for patent for a teleporter hopefully one day someone makes one and i'll be rich
ThePro - July 5, 2013 at 10:46am
So basically a patent is protection you get from others copying your new technology. And Apple makes a patent for about just everything because if they didn't , other companies would just copy, Apple's products wouldn't stand out and be different.
Tom - July 5, 2013 at 12:19pm
No what apple does is just patent every silly thing they think of not stuff they make its silly we are never going to advance well in technology if people don't use other people's ideas and improve them Like cars every company takes ideas from other manufactures and makes it better you don't see them moaning that they copied there idea what they do is go and make it better
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