Patent ID: 8497917
Filing Date: 2013-07-30
Classification: H04N

Abstract:
1. An image stabilization system comprising: a fixed unit, the fixed unit having a first receiving cavity therein and an inner surface in the first receiving cavity, the inner surface having a first receiving portion, the first receiving portion being a recess or a through hole; a movable unit received in the first receiving cavity, the movable unit having an outer surface facing the inner surface, the outer surface having a second receiving portion, the movable unit comprising a movable frame and a receiving member mounted on the movable frame, the second receiving portion being defined in the receiving member; a pivot member located between the fixed unit and the movable unit, the pivot member being received in and between the first receiving portion and the second receiving portion; a magnetic sensor disposed on the fixed unit; a magnetic driving module, the magnetic driving module comprising a magnet group mounted on the movable unit, the magnet group being opposite to the magnetic sensor, the magnetic sensor configured for detecting a change of a magnetic field generated by the magnet group due to a movement of the movable unit relative to the fixed unit, the magnetic driving module configured for driving the movable unit to rotate around the pivot member to compensate the movement of the movable unit based on a motion detection result of the magnetic sensor, wherein the fixed unit comprises a main frame and an attachable frame, the main frame is substantially cubic, and comprises a first sidewall, a second sidewall, a third sidewall opposite to the first sidewall, and a fourth sidewall opposite to the second sidewall, the first, second, third, and fourth sidewalls cooperatively define the first receiving cavity for receiving the movable unit therein, the first sidewall defines a first receiving recess communicating with the first receiving cavity, the second sidewall defines a second receiving recess communicating with the first receiving cavity, the third sidewall defines a third receiving recess communicating with the first receiving cavity, and an upper end surface of the fourth sidewall defines a recess for receiving the attachable frame, the attachable frame is substantially U-shaped and configured for receiving the pivot member therein, the attachable frame comprises a vertical plate, and a U-shaped plate perpendicular to the side plate, the plate is securely mounted in the recess, the plate has an inner surface facing the first receiving cavity, the inner surface defines the first receiving portion for receiving the pivot member therein, and the three sides of the plate are securely mounted on the top surfaces of the first, third, and fourth sidewalls, respectively.