The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 17, 2008
Filed:
Dec. 14, 2005
Applicants:
Chin-chih Lin, Taipei, TW;
Jui-hsiang Lo, Taipei, TW;
Chiou-shann Fuh, Shulin, TW;
Chia-hao Chang, Taipei, TW;
Inventors:
Chin-Chih Lin, Taipei, TW;
Jui-Hsiang Lo, Taipei, TW;
Chiou-Shann Fuh, Shulin, TW;
Chia-Hao Chang, Taipei, TW;
Assignee:
Primax Electronics Ltd., Taipei, TW;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G03B 13/36 (2006.01);
U.S. Cl.
CPC ...
Abstract
An auto focus method of a digital camera for moving a lens of the digital camera to the maximum focus value position is provided. According to certain criteria, the lens movement states are categorized into four states, i.e. an initial state, a coarse state, a mid state and a fine state. The numbers of search steps for the lens in different states are different.