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:
Oct. 15, 1991
Filed:
Oct. 04, 1990
Masayuki Hirokawa, Hyogo, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
In case of performing the data transfer between 2 systems respectively operating under different CPUs, it has been traditionally done through I/O interface, and the control of the I/O interface has been done by said CPU. The present invention has been made to implement the data transfer between 2 systems using the data transfer interface equipped with the controller to give and take the dual port memory, and the data between the dual port memory and the outside. Writing from the outside into the dual port memory in this case has been made to be indicated by the flag 1, by which the load of the data transfer of CPU itself is to be retrenched.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile