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US 2014/0191959 A1Published application
Pointing system and display having improved operable range
AssigneePixart Imaging Inc.
InventorsMING-TSAN KAO, CHIA-CHEUN LIANG
Life of this patent
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Abstract
There is provided a pointing system including an image sensor, a plurality of reference marks and a processing unit. The image sensor is configured to capture image frames containing at least one reference mark image of the reference marks. The processing unit is configured to recognize an image number of the reference mark image and calculate an aiming point coordinate according to a positioning algorithm associated with the image number.
Claims20
A pointing system, comprising:
- a plurality of reference marks illuminating with an identifiable spectrum;
- and
- a remote controller configured to capture an image frame containing at least one reference mark image of the reference marks and perform pointer positioning according to a positioning algorithm associated with an image number of the reference mark image in the image frame.
A display system, comprising:
- a display device showing a cursor;
- a plurality of reference marks illuminating with an identifiable spectrum;
- and
- a remote controller configured to capture an image frame containing at least one reference mark image of the reference marks, calculate and output a cursor coordinate of the cursor according to a positioning algorithm associated with an image number of the reference mark image in the image frame.
1 more element
A pointing system, comprising:
- a plurality of reference marks illuminating with an identifiable spectrum;
- and
- a remote controller configured to capture an image frame containing at least one reference mark image of the reference marks, recognize a reference mark image number, output a pointing coordinate according to the image frame when the reference mark image number is equal to a reference mark number of the reference marks, and output a relative displacement according to the image frame when the reference mark image number is smaller than the reference mark number.
Dependencies are inferred from the claim text.