Methods And Systems For Optical Detection Of Gestures
First Claim
Patent Images
1. A position detection system, comprising:
- a display device;
an input device; and
an optical assembly positioned adjacent to the display device, the optical assembly comprising an image sensor configured to detect light in a space between the display device and the input device,wherein at least one of the imaging assembly and the input device is configured to direct energy into the space between the display device and the input device.
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Abstract
A position detection system can comprise a display device, an input device, and an optical assembly positioned adjacent to the display device. The optical assembly can comprise an image sensor configured to detect light in a space between the display device and the input device. One or both of the imaging assembly and the input device can be configured to direct energy into the space between the display device and the input device, with directing energy comprising reflecting energy and/or emitting energy. A processing device can be configured to use the imaging sensor to determine when an object is in the space and/or to determine motion of the object.
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Citations
20 Claims
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1. A position detection system, comprising:
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a display device; an input device; and an optical assembly positioned adjacent to the display device, the optical assembly comprising an image sensor configured to detect light in a space between the display device and the input device, wherein at least one of the imaging assembly and the input device is configured to direct energy into the space between the display device and the input device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A position tracking method, comprising:
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using an emitter positioned adjacent an imaging sensor, emitting light across a space and toward a retro-reflective member, the retro-reflective member comprised in or near an input device of a computing system; detecting, using the imaging sensor, light reflected back toward the sensor by the retro-reflective member; and determining at least one of a position of an object in the space or movement of the object in the space based on interference by the object with at least one of light emitted toward the retro-reflective member or reflected back toward the sensor. - View Dependent Claims (13, 14, 15, 16, 17)
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18. A storage medium embodying program code executable by a computing device, the program code comprising:
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program code that configures the computing device to read data from an imaging sensor; program code that configures the computing device to determine, based on the data, a level of reflected light detected from a retro-reflective member; and program code that configures the computing device to identify, based on the level of reflected light, if an object has interfered with the light and, if, so, a position of the object. - View Dependent Claims (19, 20)
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Specification