我们通常不会报道苹果（Apple）的专利，因为它的专利申请多如牛毛，而被公布的则少之又少。
We don't usually write about Apple's (AAPL) patents because the company files so many and so few ever see the light of day.
但我们要为20130073095号专利申请破例一次。这项专利于上周四发布，由AppleInsider的米奇?坎贝尔发现。
But for Patent Application No. 20130073095, published Thursday and spotted by AppleInsider's Mikey Campbell, we'll make an exception.
这项专利描述了一个传感器和微处理器系统。一旦这个系统探测到iPhone或iPad正在坠落，它将改变设备的重心，防止设备坠地时最易碎的部件着地。
It describes a sensor-and-microprocessor system that can detect when an iPhone or iPad is falling and shift the device's center of balance so that it doesn't land on its most fragile parts.