NAVIGATION TRACE CALIBRATING METHOD AND RELATED OPTICAL NAVIGATION DEVICE
First Claim
1. A navigation trace calibrating method of transforming a first trace line generated by an optical navigation device into a second trace line suitable for user operation, the navigation trace calibrating method comprising:
- establishing a reference coordinate system;
reading and analyzing the first trace line;
calculating a first offset of the first trace line relative to the reference coordinate system;
defining an offset between the first trace line and the second trace line as calibration weight to acquire a second offset of the second trace line relative to the reference coordinate system; and
calculating a value of the calibration weight according to the second offset and a length of the first trace line.
1 Assignment
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Accused Products
Abstract
A navigation trace calibrating method and a related optical navigation device are utilized to transform a first trace line generated by the optical navigation device into a second trace line suitable for user operation. The navigation trace calibrating method includes establishing a reference coordinate system, reading and analyzing the first trace line, calculating a first offset of the first trace line relative to the reference coordinate system, defining an offset between the first trace line and the second trace line as calibration weight to acquire a second offset of the second trace line relative to the reference coordinate system, and calculating a value of the calibration weight according to the second offset and a length of the first trace line.
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Citations
19 Claims
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1. A navigation trace calibrating method of transforming a first trace line generated by an optical navigation device into a second trace line suitable for user operation, the navigation trace calibrating method comprising:
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establishing a reference coordinate system; reading and analyzing the first trace line; calculating a first offset of the first trace line relative to the reference coordinate system; defining an offset between the first trace line and the second trace line as calibration weight to acquire a second offset of the second trace line relative to the reference coordinate system; and calculating a value of the calibration weight according to the second offset and a length of the first trace line. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An optical navigation device with navigation trace calibrating function, capable of transforming a first trace line generated by the optical navigation device into a second trace line suitable for user operation, the optical navigation device comprising:
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a navigation chip adapted to generate the foresaid trace line; and a control unit electrically connected to the navigation chip and adapted to acquire information of the foresaid trace line, the control unit utilizing the navigation chip to establish a reference coordinate system, analyzing the first trace line and calculating a first offset of the first trace line relative to the reference coordinate system, defining calibration weight between the first trace line and the second trace line to acquire a second offset of the second trace line relative to the reference coordinate system, and calculating a value of the calibration weight according to the second offset and a length of the first trace line. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19)
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Specification