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. 22, 2012
Filed:
Jun. 17, 2009
Jyh-hong Wu, Taichung, TW;
Fang-pang Lin, Hsinchu, TW;
Yi-hao Hsiao, Shetou Township, Changhua County, TW;
Te-lin Chung, Jhubei, TW;
Jyh-Hong Wu, Taichung, TW;
Fang-Pang Lin, Hsinchu, TW;
Yi-Hao Hsiao, Shetou Township, Changhua County, TW;
Te-Lin Chung, Jhubei, TW;
National Applied Research Laboratories, Taipei, TW;
Abstract
A liquid level detection method includes capturing an image of a liquid surface, a structural surface, and graduation markings provided on the structural surface using an image-capturing device to thereby obtain an initial image. Subsequently, the initial image is processed so as to generate a processed image, and a level reference value of the liquid surface is obtained from the processed image. The level reference value represents a height of the liquid surface in terms of inherent characteristics of the processed image. Lastly, a liquid level of the liquid surface is calculated based on a relative proportional relation among the level reference value, an overall height of the processed image in terms of the inherent characteristics of the processed image, and dimensions of any one of the initial and processed images relative to the graduation markings.