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:
Jan. 16, 2024
Filed:
Oct. 06, 2022
Applicant:
Sensortek Technology Corp., Zhubei, TW;
Inventors:
Assignee:
Sensortek Technology Corp., Zhubei, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01J 1/46 (2006.01); G01J 1/02 (2006.01); G01J 1/44 (2006.01);
U.S. Cl.
CPC ...
G01J 1/46 (2013.01); G01J 1/0228 (2013.01); G01J 2001/446 (2013.01);
Abstract
The present application discloses a light sensor circuit, which comprises a photodiode and a capacitor unit. The cathode of the photodiode is controlled by a capacitive unit to maintain the same or close voltage level as the anode of the photodiode, which significantly reduces the effect of the dark current of the photodiode. Thus, the light sensor circuit can effectively maintain the performance and accuracy of an analog-to-digital converter applying the light sensor circuit. The circuit design difficulty and manufacturing cost are also significantly reduced.