The sensors would start the process if a finger breaks contact with the screen at a certain point in time, or if there is no movement for a preset time period. Telephone calls would be made to emergency numbers and a prerecorded message would play. Using the accelerometer and microphone, loud noises and sudden movements would start the process, and a panic button could be pressed if needed.
The alarm can be disabled when the user interacts with the device after the process has started. A warning screen could appear, giving the user the ability to end the process if there is a false alarm such as a dropped device. Besides calling emergency services, the iPhone will also play an alarm at maximum volume. And with the microphone turned up to the highest level, hands-free, two-way communication can be made.
We have no idea when Apple will implement this feature, or if it ever will. Still, it's nice to know that there could be a day when your iPhone has your back.
source: USPTO via AppleInsider
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