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Well that's certainly something!
Geekwire article excerpt:
A patent application made public this morning lists Bezos and Amazon VP Greg Hart as the inventors of a system and method for protecting devices from impact damage.
It starts with a safety monitoring system that would use a gyroscope, camera, infrared beam, radar or other sensors to detect such things as motion, orientation and distance from other objects then determine in a split second if the device is at risk of damage from impact.
One idea (shown in Fig. 2B above) is to embed one or more small airbags inside the phone, according to the filing. If the device is at risk of damage from a fall, the airbags would instantly inflate via an embedded cartridge of compressed air or carbon dioxide. The monitoring system could either detect which side of the phone will hit the ground, and deploy the airbag there, or pop airbags out of multiple sides of the device.
The patent application goes further suggesting the possibility of reorienting the device in the air, by expelling gas, so that it lands on the side where an airbag is deployed.
http://www.geekwire.com/2011/jeff-bezos-put-airbag-smartphone
USPTO Patent Link