Patent ID: 7248840

Claim:
A portable electronic device assembly comprising: a) a portable electronic device; and b) a re-positioning reminder located in the portable electronic device and having: i) a environment detecting unit monitoring surroundings located on an interior or an exterior of the portable electronic device and generating a monitoring value, the environment detecting unit is a device selected from a group consisting of a light responsive component and a light actuated component; ii) a control unit electrically connected to the environment detecting unit, the control unit receiving and comparing the monitoring value with a preset value to determine whether the portable electronic device is in a predetermined environment iii) a time counting module electrically connected to and controlled by the control unit, the time counting module performing a countdown operation based on a preset time period; and iv) at least a vibrating/ring circuit electrically connected to and controlled by the control unit, the vibrating/ring circuit producing an alarm sound/vibration at an end of the countdown operation.