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. 18, 1997
Filed:
Jan. 30, 1996
Naoya Murakami, Yokohama, JP;
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
When a frame marked with a marker pen in a black-and-white image is to be extracted, an intermediate-density portion present on a character edge portion is removed by a frame extracting circuit. The frame extracting circuit removes an intermediate-density pixel adjacent to a high-density pixel corresponding to a character/figure. Accordingly, the extracting precision of the marker portion in the black-and-white image is improved. The extracting precision of the marker portion will not be decreased even when extraction is to be performed from an image enlarged by an input system.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile