Google Nexus 7 Also Have Similar Magnetic Sensor in iPad 2

An owner of a nosy Google Nexus 7, has found a new feature on the first tablet is Jelly Bean. The owner of a magnet boldly brought into the Nexus 7, something that could damage the electronic circuits inside. Luckily, of the annoyance is not damaged and even found a magnetic sensor that can be applied to smart cover like the iPad. Magnet is placed adjacent to the Nexus 7, both at the front, rear, or at the bottom left when in a standing position would get a response from the tablet. Tablet will wake up from his sleeping position and turn on the screen, as shown in the following video: Google itself does not sell a cover for the Nexus 7 or there is information that describes support for this feature. Asus had called smart cover, but there is little oddities here because there is a magnetic sensor on the left side when the lid is usually open from right to left. Apple is known to have implemented smart in iPad 2 cover. Function looks similar to the one installed in the Nexus 7 and there are also possible on Microsoft Surface tablets that have not been circulated. Apple even has a patent on a magnetic system Smart Cover, though not so broad in scope. From the Apple patent about Smart Cover, mechanisms and functions appear on the special limited iPad 2. Smart Cover on the iPad 2 is intended to fit the lid on the sides of the iPad, and not to make the screen light up. There is mention of other useful functions for the Smart Cover but still looked destined for the design and the mechanisms used by Apple. Is this design will become a matter of law and violate Apple's patents? source