Apple Patents Automatic Adjustment of iPhone Volume Based on Proximity

Apple Patents Automatic Adjustment of iPhone Volume Based on Proximity

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Apple has been granted a patent that details a method of automatically adjusting the iPhone's receiver or speaker volume based on your proximity to the device.

The present invention relies on automatic detection of device proximity to the user to adjust one or more acoustic transducers. For example, if the device is a mobile telephone, and the user is using the receiver and holding the telephone against his/her ear, if the telephone detects that the user has moved the telephone further from his/her ear, the telephone will raise the receiver volume. Similarly, if the user is using the speaker, the telephone will adjust the speaker volume as user distance from the telephone changes.

In another embodiment the telephone may fade between the receiver and the speaker. In such an embodiment, if the user, e.g., starts with the device near his face, the device could use the receiver output. As the user begins to move the telephone further away, the telephone will detect the decreased proximity and increase the receiver volume. Eventually, as the proximity decreases further, the telephone will switch from the receiver to the speaker, starting out at a lower speaker volume and increasing the speaker volume as the distance increases. The reverse would happen if while in speaker mode the distance to the user decreases.


Notably, Apple also accounts for the switch from receiver to speaker or speaker to receiver. For example, when going from the receiver to the speaker, the speaker would turn at low volume as the receiver reaches its maximum volume, the receiver would then fade its volume as the speaker volume increases. The procedure would be reversed when moving in the opposite direction.

Apple also says frequency response could be adjusted according to user proximity. Devices are designed to have a certain acoustic frequency response based on their position relative to the ear. If the position of the device is being changed appropriate frequencies could be boosted or deemphasized.

For example, lower audible frequencies are affected more than higher frequencies as a device is moved away from a user, increasing the volume of air in front of the transducer (e.g., speaker or receiver). Thus, if it is detected that the device is being moved away from the user, the lower frequencies could be boosted.

Read More [via AppleInsider]


Apple Patents Automatic Adjustment of iPhone Volume Based on Proximity
Moses7 - July 16, 2013 at 2:29am
Meanwhile for audio: there is an app called "autovolume" that samples the outside noise levels and auto adjusts the ipod volume in real-time. Now that works!
Perone - May 29, 2013 at 5:35pm
Doesn't Samsung do that already? Adapt sound and such other features that are similar?
Zzz - May 28, 2013 at 10:47pm
Just another useless thing that will piss you off when it doesnt work properly.
Marnus - May 28, 2013 at 6:55pm
Wow, I would've never thought of that! That's innovation!
Tom - May 28, 2013 at 6:55pm
Yeah, and that will be even cooler, when you hear a loud noise in the phone (if you call a friend at concert, that can happen) and you remove the phone from your hear, and your too smart phone will swich to speaker mode :))) AND if you want that stop you need your other hand to cover the proximity sensor very well done! :) we have to stop somewhere people. why dont the phone start "predicted" calls based on usage? how smart that would be? if you usually call your gf around 730pm every day, then the phone just start the call without you doing anything. [PATENT WONT EVER BE PENDING :)]
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