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. 18, 1989
Filed:
Sep. 24, 1986
Nobuhiko Yamagami, Tachikawa, JP;
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
A boundary detection target region designating circuit includes a maximum value register in which a predetermined minimum value is initially set, and a minimum value register in which a predetermined maximum value is initially set. The content of the maximum value register is compared with a vertex coordinate of a boundary written in a boundary detection memory by a first comparator. If it is detected that the vertex coordinate is larger than the content of the maximum value register, the content of the maximum value register is updated to be the vertex coordinate by a first updating means. The content of the minimum value register is compared with the vertex coordinate by a second comparator. If it is detected that the vertex coordinate is smaller than the content of the minimum value register, the content of the minimum value register is updated to be the vertex coordinate by a second updating means. After a boundary write operation into the boundary detection memory is completed, maximum and minimum coordinates of a minimum rectangular region including all the boundaries of blanked-out regions are indicated by the maximum and minimum value registers.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile