Automatic leveling device
AssigneeMitac International Corp.
InventorChia-Wei Chang
Life of this patent
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Abstract
An automatic leveling device is provided, which is disposed in an electronic device for adjusting the level of the electronic device. The automatic leveling device includes a liquid level gauge filled with a liquid and a bubble, a bubble position detection module for detecting a relative position of the bubble in the liquid level gauge, a control unit electrically connected to the bubble position detection module for receiving a bubble position signal from the bubble position detection module and outputting a leveling signal, and a drive unit electrically connected to the control unit for receiving the leveling signal from the control unit, thereby adjusting the electronic device to be at a level state.
Claims14
An automatic leveling device, disposed in an electronic device for adjusting level of the electronic device, comprising:
- a liquid level gauge, being a sealed tube filled with a liquid and a bubble;
- a bubble position detection module, comprising:
- a plurality of light sources, disposed on one side of the liquid level gauge;
- and
- a plurality of bubble detection circuits, disposed on other side of the liquid level gauge corresponding to the light sources, wherein each of the bubble detection circuits includes a photo detector for receiving light emitted by the corresponding light source and outputting a bubble detection signal, and a switch element, electrically connected to the photo detector, for receiving the bubble detection signal and outputting a corresponding switch signal;
- a control unit, electrically connected to the switch elements of the bubble detection circuits, for receiving switch signals outputted by the switch elements and outputting a leveling signal;
- and
- a drive unit, electrically connected to the control unit, for receiving the leveling signal outputted by the control unit to adjust a level of the electronic device.
Dependencies are inferred from the claim text.