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.

Date of Patent:
Jun. 25, 2019

Filed:

Oct. 31, 2016
Applicant:

Realtek Semiconductor Corporation, Hsinchu, TW;

Inventor:

Shih-Wei Wang, Hualien County, TW;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R 31/26 (2014.01); H04B 10/69 (2013.01); G05F 1/10 (2006.01);
U.S. Cl.
CPC ...
G01R 31/2635 (2013.01); G05F 1/10 (2013.01); H04B 10/6911 (2013.01);
Abstract

An operation voltage testing circuit includes a voltage generating circuit, a current-to-voltage conversion circuit, and a processing circuit. The voltage generating circuit is configured to generate a first voltage signal according to a first current signal, such that a photoelectric conversion unit generates a second current signal corresponding to the first voltage signal. The current-to-voltage conversion circuit is configured to generate a second voltage signal corresponding to the second current signal. The processing circuit is configured to receive the second voltage signal and to selectively adjust and output the first current signal according to the second voltage signal and a threshold value, such that the voltage generating circuit selectively adjusts the first voltage signal according to the first current signal.


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