THREE DIMENSIONAL IMAGE PROJECTOR STABILIZATION CIRCUIT
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Accused Products
Abstract
A projector system that includes a first input device, a second input device, a control device, a sensor and a phase locked loop (PLL). A phase reference signal is created based on a signal rate of the first input device. A phase feedback signal is created based on the rotational speed of the second input device as it is measured by the sensor. The PLL compares the phase reference signal and the phase feedback signal to determine whether the first input device and the second input device are synchronized. A signal is sent to the control device for the second input device to change the rotational speed of the second input device in response to determining that the first input device and the second input device are not synchronized.
4 Citations
23 Claims
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1-10. -10. (canceled)
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11. A projector system for a portable electronic device, the projector system comprising:
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a first input device; a second input device; a control device; a sensor; and a phase locked loop (PLL), the projector system configured to perform a method comprising; creating a phase reference signal based on a signal rate of the first input device; creating a phase feedback signal based on the rotational speed of the second input device as measured by the sensor; comparing, by the PLL, the phase reference signal and the phase feedback signal to determine whether the first input device and the second input device are synchronized; and sending, by the PLL, a signal to the control device, the sending responsive to determining that the first input device and the second input device are not synchronized; and changing, by the control device, the rotational speed of the second input device responsive to the signal. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
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20. A system comprising:
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a control device in communication with a second input device, the control device configured for controlling a rotational speed of the second input device; a sensor in communication with the second input device, the sensor configured for determining the rotational speed of the second input device and for outputting a phase feedback signal based on the rotational speed of the second input device; and a phase locked loop configured for receiving a phase reference signal from a 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 first input device and the second input device are synchronized, and for sending a signal to the control device to change the rotational speed of the second input device responsive to determining that the first input device and the second input device are not synchronized. - View Dependent Claims (21, 22, 23)
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Specification