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. 22, 1980
Filed:
Aug. 04, 1978
Applicant:
Inventor:
James L Vanderpool, Centerville, OH (US);
Assignee:
Monarch Marking Systems, Inc., Dayton, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06K / ; G08C / ; G11B / ;
U.S. Cl.
CPC ...
235463 ; 250555 ; 360 42 ;
Abstract
A bar code reader employs a microprocessor for decoding data contained in a bar code record and a logarithmic converter ahead of the microprocessor for providing to the microprocessor signals indicative of the logarithms of the widths of the scanned bars and spaces. The base of the logarithms used by the logarithmic converter is selected in a predetermined manner to maximize the resolution of the system for the particular microprocessor used, and to reduce the complexity of the system.