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:
Oct. 07, 1997
Filed:
Apr. 26, 1996
Applicant:
Inventors:
Howard Christopher Rivenberg, Mercer, NJ (US);
Aaron William Levine, Mercer, NJ (US);
Nitin Vithalbhai Desai, Mercer, NJ (US);
Assignee:
David Sarnoff Research Center, Inc., Princeton, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G08B / ; G08B / ; G08B / ;
U.S. Cl.
CPC ...
340550 ; 340540 ; 340541 ; 340562 ; 340652 ;
Abstract
A tamper detection device can determine whether a housing containing a device has been tampered with either by having the housing penetrated or by an attempt to remove a cover from the housing. The tamper detection device may be a capacitor which is placed across a portion of the housing and whose capacitance changes if it is penetrated. The temper detection device may also be a flexible circuit having conductive strips thereon forming a circuit with means to cause an open circuit if the housing is penetrated or the cover removed from the housing.