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:
Nov. 13, 2012
Filed:
Dec. 19, 2006
Wesley A. Kirschner, Farmington, CT (US);
Robert W. Sisson, Trumbull, CT (US);
John A. Hurd, Torrington, CT (US);
Frederick W. Ryan, Jr., Oxford, CT (US);
Gary S. Jacobson, Norwalk, CT (US);
Wesley A. Kirschner, Farmington, CT (US);
Robert W. Sisson, Trumbull, CT (US);
John A. Hurd, Torrington, CT (US);
Frederick W. Ryan, Jr., Oxford, CT (US);
Gary S. Jacobson, Norwalk, CT (US);
Pitney Bowes Inc., Stamford, CT (US);
Abstract
Various methods for detecting the removal of a processing unit, such as a microprocessor or a microcontroller, form a printed circuit board in a secure printing system, such as a postage metering system are provided. The methods utilize one or more of a real time clock provided internal to the processing unit, a CMOS device provided on the printed circuit board external to the processing unit, and CMOS memory internal to the processing unit to detect the removal of the processing unit and therefore an attack.