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. 01, 2022
Filed:
Nov. 05, 2018
Applicant:
Vicwood Prosperity Technology Limited, Hong Kong, HK;
Inventors:
Ka Wai Eric Cheng, Hong Kong, HK;
Man Yau Law, Hong Kong, HK;
Hin Hung Ng, Hong Kong, HK;
Kwok Shing Wong, Hong Kong, HK;
Assignee:
Vicwood Prosperity Technology Limited, Hong Kong, HK;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K 17/96 (2006.01); G08B 21/22 (2006.01); A61B 5/0531 (2021.01); H02H 5/12 (2006.01);
U.S. Cl.
CPC ...
H03K 17/9645 (2013.01); A61B 5/0531 (2013.01); G08B 21/22 (2013.01); H02H 5/12 (2013.01);
Abstract
Methods and apparatus for detecting possible living body contact at an electrical contact surface is disclosed, comprising sending a non-hazardous probing signal to the contact surface, detecting an electrical response from the contact surface in response to the electrical probing signal, and determining whether a captured responsive signal has characteristics of an expected responsive pulse, and to output a positive output signal indicative of possible living body to mitigate risks of electrical shock.