Patent Number: 7,611,412

Title: Orientation device and method for coordinate generation employed thereby

Abstract: A method for coordinate generation to be implemented using an orientation device includes the steps of: providing at least three reference marks on a target; aiming the orientation device at a target point on the target, and operating the orientation device such that the orientation device is able to capture an image of the target that contains the reference marks; assigning absolute coordinates to the reference marks in the image captured by the orientation device; and determining relative coordinates of the target point in a coordinate space of the target with reference to the absolute coordinates assigned to the reference marks. An orientation device that performs the method is also disclosed.

Inventors: Lin; Chih-Hsin (Hsinchu Hsien, TW), Chao; Tzu-Yi (Hsinchu Hsien, TW), Chen; Hsin-Chia (Hsinchu Hsien, TW)

Assignee: Pixart Imaging Inc.

International Classification: A63F 9/24 (20060101); A63F 13/00 (20060101); G06F 17/00 (20060101); G06F 19/00 (20060101)

Expiration Date: 1/03/02017