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:
Jul. 06, 1999
Filed:
May. 10, 1996
Applicant:
Inventor:
Yoshiyuki Shimokawa, Tokyo, JP;
Assignee:
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Primary Examiner:
Int. Cl.
CPC ...
G06F / ; G06F / ;
U.S. Cl.
CPC ...
709252 ; 709250 ; 370466 ; 370463 ;
Abstract
In a data transmission system, a plurality of control terminals or nodes used for plant control are connected to each other through a known LAN such as an ETHERNET, and a large number of control data are transmitted between the nodes at a high speed. When control data generated by each node is to be transmitted to another node, an ETHERNET frame is used as a transmission frame, and at least a plurality of blocked control data are stored on the ETHERNET frame. The control data is periodically transmitted in a multicast manner, each node includes a control data memory, and the control data is transmitted by using the memory.