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:
Mar. 08, 2022
Filed:
Apr. 23, 2019
Applicant:
Varex Imaging Corporation, Salt Lake City, UT (US);
Inventors:
Richard Weisfield, Los Gatos, CA (US);
Kungang Zhou, Saratoga, CA (US);
Assignee:
Varex Imaging Corporation, Salt Lake City, UT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01T 1/29 (2006.01); G01T 1/24 (2006.01); H04N 5/32 (2006.01); H01L 27/146 (2006.01); H01L 29/786 (2006.01);
U.S. Cl.
CPC ...
G01T 1/247 (2013.01); H01L 27/14612 (2013.01); H01L 27/14658 (2013.01); H01L 29/7869 (2013.01); H04N 5/32 (2013.01);
Abstract
Some embodiments include a system, comprising: first circuit including a transistor having an optically sensitive threshold voltage; a light source configured to illuminate the transistor; and a control circuit configured to activate the light source based on the threshold voltage. In some embodiments, a threshold voltage of the transistor may be stabilized.