An iPhone of the future could change its volume all on its own by detecting how near or far you are to it.
"Adjustment of acoustic properties based on proximity detection," a patent application published Tuesday by the U.S. Patent and Trademark Office, describes how the iPhone's promixity sensor could be used to automatically change the volume or even switch between the receiver and the speaker.
Holding the iPhone to your ear would lower the volume through the receiver. Moving it slightly away from your ear would raise the volume. Putting the phone down and moving … Read more