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:
May. 07, 2013
Filed:
May. 21, 2010
Chan-min Chou, Taipei County, TW;
Chia-lun Tsai, Changhua County, TW;
Tsung-pin LU, Taipei County, TW;
Tzu-huang Huang, Changhua County, TW;
Chih-pin Yen, Taipei County, TW;
Chan-Min Chou, Taipei County, TW;
Chia-Lun Tsai, Changhua County, TW;
Tsung-Pin Lu, Taipei County, TW;
Tzu-Huang Huang, Changhua County, TW;
Chih-Pin Yen, Taipei County, TW;
Altek Corporation, Hsinchu, TW;
Abstract
A method for assisting in focal length detection is applicable to a digital camera having the flash. The method includes the following steps. First, the flash of the digital camera is actuated and a first image is captured. Afterwards, a characteristic exposure value of the first image is calculated. A focus range comparison table is looked up according to the characteristic exposure value to obtain an initial focus position. Then, a focus procedure is performed according to the initial focus position to obtain a target focal length.