The technology giant, Apple, has been granted over 30 patents by the US Patent & Trademark Office, focusing on technology which can detect and react to sound resulting from the case of the technology (such as tapping the case, scratching the device, or running your finger over it).
Additionally, Apple has also received patents regarding light sensitive displays with object detection calibration (ODC), and audio port configuration for handheld electronic devices
The innovative new technology employs sensors to interpret movement detected on the device.