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:
Feb. 14, 1984
Filed:
May. 12, 1981
Yoshihiko Okayama, Numazu, JP;
Toshiba Kikai Kabushiki Kaisha, Tokyo, JP;
Abstract
A programmable sequence control apparatus comprises a memory device for storing sequence program instructions, an input/output device for introducing input data and delivering output data therefrom, a ladder operation device for carrying out logic operations for a ladder circuit having n lines and m columns in accordance with said program instructions, and a control device for delivering control signals to the ladder operation device. The ladder operation device comprises a first memory device for storing contact data for each column of said ladder circuit, a second memory device for storing branch data for each column of said ladder circuit, and a gate device for executing logic operations for respective lines in each column based on the results of the logic operations executed for corresponding lines in a previous column, and on outputs from the first and second memory devices for delivering results of the operations for the logic operations of a subsequent column.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile