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. 30, 1976
Filed:
Aug. 28, 1972
Richard E Fayling, White Bear Lake, MN (US);
Minnesota Mining and Manufacturing Company, St. Paul, MN (US);
Abstract
A system using a recording medium for accumulating data to be fed to electronic data processing equipment. The system includes homogeneous permanent magnet material master source documents capable of being magnetized throughout in discrete patterns providing external magnetic fields representative of encoded data. The permanent magnet material has a coercivity of not less than 1000 oersteds and a maximum energy product of not less than 5 .times. 10.sup.5 gauss-oersteds. The data is recorded onto a recording medium momentarily positioned adjacent the documents. The data is subsequently sensed from the recording medium to produce electrical signals to be processed in data processing equipment. In one embodiment customer and transaction data are magnetically recorded onto the recording medium.