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US 7,583,258 B2Granted
Optical tracker with tilt angle detection
AssigneeMicrosoft Corporation
InventorYuan Kong
Life of this patent
Estimating the term…
Abstract
Optical tracking systems, method, and devices are described in which optical components detect light within a substantially planar region adjacent to a user device. Tracking logic may receive signals output by the optical components and determine coordinates associated with a movement of a pointing object through the substantially planar region. The tracking logic may then provide for translation of the coordinates into an action on a display, such as, for example, a movement of a cursor or other icon on the display.
Claims20
A method comprising:
- receiving first pixel values from a first pixel array that correspond to a first part of a pointing object in a first substantially planar region;
- receiving second pixel values from a second pixel array that correspond to a second part of the pointing object in a second substantially planar region, the second substantially planar region being substantially parallel and non-intersecting to the first substantially planar region;
- determining a relationship between the first part of the pointing object and the second part of the pointing object, based on the first and second pixel values;
- and
- providing an action on a display, based on the relationship.
2 more elements
A system comprising:
- optical components including
- a first pixel array included within a first substantially planar region and operable to output first pixel values corresponding to a first part of a pointing object within the first substantially planar region;
- a second pixel array included within a second substantially planar region and operable to output second pixel values corresponding to a second part of a pointing object within the second substantially planar region, the second substantially planar region being substantially parallel and non-intersecting to the first substantially planar region;
- and
- tracking logic operable to determine a relationship between the first part of the pointing object and the second part of the pointing object, based on the first and second pixel values, and further operable to provide an action on a display, based on the relationship.
2 more elements
A device comprising:
- optical components including a first pixel array associated with a first substantially planar region and a second pixel array associated with a second substantially planar region, the second substantially planar region being substantially parallel and non-intersecting to the first substantially planar region;
- and
- tracking logic that is operable to receive first pixel values from the first pixel array and determine movement of a pointing object within the first substantially planar region, based thereon, and further operable to receive the second pixel values from the second pixel array and determine a tilt of the pointing object relative to the first substantially planar region, based on the first pixel values and the second pixel values.
Dependencies are inferred from the claim text.