Dynamic information storage or retrieval – Condition indicating – monitoring – or testing – Including radiation storage or retrieval
Reexamination Certificate
2007-11-29
2010-10-19
Dinh, Tan X (Department: 2627)
Dynamic information storage or retrieval
Condition indicating, monitoring, or testing
Including radiation storage or retrieval
C369S053400, C369S044320
Reexamination Certificate
active
07817516
ABSTRACT:
A method is used for detecting a tilt of an optical pickup head. The method includes the steps of: capturing a plurality of images; converting the images to bitmap images; superposing the bitmap images together to form an superimposed bitmap image; setting a two-dimensional coordinating system of the superimposed bitmap image; determining coordinates of a first static spot, a second static spot, and dynamic spot; calculating a first distance between the first static spot and the dynamic spot, and a second distance between the second static spot and the dynamic spot based on the coordinates to determine a maximum distance; and comparing the maximum distance with a first standard distance to attain a conclusion whether the tilt is in an acceptable range.
REFERENCES:
patent: 4608680 (1986-08-01), Yano
patent: 4780865 (1988-10-01), Yamakawa
patent: 5216649 (1993-06-01), Koike et al.
patent: 5430699 (1995-07-01), Matsubara et al.
patent: 5483512 (1996-01-01), Yanagawa
patent: 5546367 (1996-08-01), Yoshimura et al.
patent: 5596557 (1997-01-01), Matsumoto
patent: 5719847 (1998-02-01), Tateishi et al.
patent: 6167008 (2000-12-01), Kuribayashi
patent: 6259665 (2001-07-01), Nagasato
patent: 2004/0057352 (2004-03-01), Kim et al.
patent: 2005/0117473 (2005-06-01), Ke et al.
patent: 2008/0304386 (2008-12-01), Wang
Dinh Tan X
Hon Hai Precision Industry Co. Ltd.
Niranjan Frank R.
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