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:
Apr. 11, 1995
Filed:
Oct. 21, 1993
Richard J LaManna, Morristown, NJ (US);
Card Technology Corporation, Paramus, NJ (US);
Abstract
A method of adjusting alignment of a magnetic head to be within an alignment specification in accordance with the invention includes recording on magnetic material of a test card a digital code having a greater number of bits per unit length than the set number of bits used for conventional magnetic recording of credit cards. The test card produces an electrical playback signal which varies in magnitude with head alignment at a second rate greater than a first rate produced during conventional recording. The test card is read repeatedly and alignment of the head is adjusted until a maximum electrical playback signal is produced indicating that the head is set within the alignment specification.