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:
Aug. 16, 2005
Filed:
Oct. 04, 2002
Applicants:
Vladimir Kraz, Santa Cruz, CA (US);
Kirk Alan Martin, Aptos, CA (US);
Inventors:
Vladimir Kraz, Santa Cruz, CA (US);
Kirk Alan Martin, Aptos, CA (US);
Assignee:
Credence Technologies, Inc., Soquel, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G08B021/00 ;
U.S. Cl.
CPC ...
Abstract
A method and apparatus for monitoring grounding of personnel and equipment in electrostatic discharge (ESD) sensitive areas. The device generates a low voltage alternating current control signal () which is applied to personnel () and equipment () being monitored. The device further includes signal conditioning () and detection means () to distinguish static charges from the control signal and transmit an alarm () upon detection of such static charge. The method encompasses the use of an alternating current control signal to detect static charge.