Computer graphics processing and selective visual display system – Display peripheral interface input device – Cursor mark position control device
Reexamination Certificate
2007-01-30
2007-01-30
Hjerpe, Richard (Department: 2629)
Computer graphics processing and selective visual display system
Display peripheral interface input device
Cursor mark position control device
C345S156000, C345S163000
Reexamination Certificate
active
10743872
ABSTRACT:
An optical navigation sensor device and an image processing method using a 2-dimensional sequential image process are disclosed. A pre-processor stores digital voltage values of respective pixels of an image received from a pre-processor in a memory, performs a pre-process for the digital voltage values of respective pixels sequentially received from the memory, thereby producing a pre-processed current image, and extracts a pre-processed current central image from the pre-processed current image. A motion coordinate calculator stores the pre-processed current central image as X/Y-axis reference image candidates, determines replacement of X/Y-axis reference images for calculation of motion coordinate values of a next pre-processed image in accordance with X/Y-axis motions of the pre-processed current image, and compares the pre-processed current image with the X/Y-axis reference images, thereby calculating X/Y-axis motion coordinate values of the pre-processed current image.
REFERENCES:
patent: 6697052 (2004-02-01), Shen et al.
patent: 6927758 (2005-08-01), Piot et al.
patent: 2000-020230 (2000-01-01), None
Choi Won-Tae
Hwang Byoung-Won
Kim Kang-ju
Min Kyoung-Joong
Park Keun-Woo
Dinh Duc
Hjerpe Richard
Morgan & Lewis & Bockius, LLP
Samsung Electro-Mechanics Co. Ltd
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