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:
Jun. 06, 2023
Filed:
Dec. 17, 2019
Applicant:
Signify Holding B.v., Eindhoven, NL;
Inventors:
Xiajuan Wu, Shanghai, CN;
Dalibor Cvoric, Arnhem, NL;
Ye Liu, Shanghai, CN;
Haimin Tao, Eindhoven, NL;
Yun Wang, Shanghai, CN;
Han Lu, Eindhoven, NL;
Jing Yang, Shanghai, CN;
Deyong Kong, Shanghai, CN;
Jing Li, Eindhoven, NL;
Assignee:
SIGNIFY HOLDING B.V., Eindhoven, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B 45/50 (2022.01); H05B 47/20 (2020.01); F21V 25/00 (2006.01); F21V 25/04 (2006.01);
U.S. Cl.
CPC ...
H05B 47/20 (2020.01); F21V 25/04 (2013.01);
Abstract
A lamp has a safety circuit connected to first and second electrical connection terminals. A test is used to detect if the first and second electrical connection terminals are both connected to external power without an interfering impedance such a human body, and only then enable operation of the lamp. A time for the test is different from a time when another lamp in the system applies a test.