Looking to enhance battery life on the iPhone, Apple has just been awarded a new patent from the U.S. Patent and Trademark Office (USPTO) named “Attention detection service.” According to the patent (via AppleInsider), “The attention detection service may monitor various peripheral devices in the device for indications that a user is paying attention to the device. Various clients may register for notification of attention detection and attention lost (attention no longer detected) events, or may poll the service for the events.”