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:
Dec. 14, 1993
Filed:
Oct. 08, 1992
Naoki Ukai, Okazaki, JP;
Koji Mori, Oobu, JP;
Nippondenso Co., Ltd., Kariya, JP;
Abstract
A bar code reading apparatus for optically reading a bar code comprising bars and spaces successively and alternately arranged to output a digital signal to a decoder placed at the reading apparatus. The reading apparatus includes a conversion circuit for converting the bar code information into a digital signal having high-level and low-level portions with time periods corresponding to the widths of the bars and spaces. Also included in the reading apparatus is a preprocessing unit for converting the digital signal into width data to correct the width data so as to narrow the scattering of the width data. The preprocessing unit reproduces a digital signal on the basis of the corrected width data, which is in turn supplied as the bar code information to the decoder. With this arrangement, the decoder can easily and surely decode the inputted bar code information.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile