Patent ID: 9016873
Filing Date: 2015-04-28
Classification: G03B,G09G,H04N

Abstract:
1. A projector system for a portable electronic device, the projector system comprising: an input device; a digital mirror device (DMD), the DMD having a plurality of rotating minors; a sensor operably coupled to measure a rotational speed of the plurality of rotating mirrors; a control device configured for controlling the rotational speed of the plurality of rotating mirrors; a phase locked loop (PLL) electrically coupled to the sensor; and wherein the phase locked loop is configured for receiving a phase reference signal from the first input device, for receiving the phase feedback signal from the sensor, for comparing the phase reference signal and the phase feedback signal to determine whether the input device and the DMD are synchronized, and for sending a first signal to the control device to change the rotational speed of the plurality of minors in response to determining that the input device and DMD are not synchronized.