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:
Feb. 01, 2011
Filed:
Nov. 15, 2007
Mehran Mirkazemi-moud, Rocklin, CA (US);
Jack Richard Grenfell, Rocklin, CA (US);
Arnon Aviv, Herzlía, IL;
Mehran Mirkazemi-Moud, Rocklin, CA (US);
Jack Richard Grenfell, Rocklin, CA (US);
Arnon Aviv, Herzlía, IL;
Verifone, Inc., San Jose, CA (US);
Abstract
A magnetic card reader including a magnetic head, located in a non-secured region, at least one signal path including at least first and second electrical conductors extending from the magnetic head in the non-secured region to a secured region, circuitry located within the secured region and receiving at least one signal output along at least one signal path, the circuitry located within the secured region including functionality ensuring that a voltage difference along the at least first and second electrical conductors is virtually zero, thereby obviating illicit information retrieval via tapping of the at least first and second conductors and analysis of voltage differences therebetween.