The sound of the speaker of the iPhone automatically adjusts the distance

The United States Patent and Trademark Office has granted Apple patent 8,452,020 which is directly related to the speaker of the iPhone. The method used is to automatically adjust the sound volume depending on the distance between the user's ear with the telephone. Apple has for the idea of ​​using sensors in front to judge the distance. If the phone is worn in the ear, the call volume of more traditional, similar to what is done today. In contrast, over the camera moves away, the more the volume increases to automatically switch mode "speaker" to hear his matches if the terminal is for example on a table. Handling is already available and has been long, the technique here automates the process without having to do anything in advance. Between the time the iPhone is glued to his ear and where it is placed on a table, the volume would intensify.