Computer graphics processing and selective visual display system – Display peripheral interface input device – Cursor mark position control device
Reexamination Certificate
2005-03-11
2009-12-29
Awad, Amr (Department: 2629)
Computer graphics processing and selective visual display system
Display peripheral interface input device
Cursor mark position control device
Reexamination Certificate
active
07639236
ABSTRACT:
An image sensor, an optical pointing device and a motion calculating method of the optical pointing device are disclosed. The optical pointing device includes an image sensor for obtaining and providing a surface image corresponding to a motion searching range; and an image processor for determining a direction and a length of an X axis and a Y axis of the motion searching range and a reference area to continuously obtain the surface image corresponding to the direction and length of the X axis and Y axis, obtaining a reference frame and a current frame using the continuously obtained surface image, setting a certain area of the reference frame corresponding to the direction and length of the X axis and Y axis of the reference area as the reference area, and calculating a correlation between the reference area and the sample frame, to thereby calculate motion. The image sensor can obtain the larger surface image in the X axis direction. Thus, even though the optical pointing device collects the image at a low sampling rate, there is an effect in that larger motion of the optical pointing device for the X axis direction can be calculated. This helps reduce the operating speed of the semiconductor to thereby reduce power consumption.
REFERENCES:
patent: 4663535 (1987-05-01), Nakai et al.
patent: 6507011 (2003-01-01), Ang
patent: 7170494 (2007-01-01), Park et al.
patent: 2004/0095323 (2004-05-01), Ahn
patent: 2004/0119695 (2004-06-01), Lee
patent: 2005/0060668 (2005-03-01), Lee et al.
patent: 2005/0062720 (2005-03-01), Rotzoll et al.
patent: 2003157145 (2003-05-01), None
patent: 1998080492 (1998-11-01), None
patent: 460845 (2001-10-01), None
patent: 489275 (2002-06-01), None
patent: 535440 (2003-06-01), None
patent: 200301867 (2006-07-01), None
Machine translation of KR 1998-080492.
Preliminary Notice of the First Office Action issued Apr. 11, 2008 in the corresponding Taiwanese Patent Application 094107089 including an English Translation thereof.
Search Report associated with the Preliminary Notice of the First Office Action issued Apr. 11, 2008.
Korean Office Action issued on Jul. 24, 2006.
Atlab Inc.
Awad Amr
Cantor & Colburn LLP
Pervan Michael
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