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. 11, 2005
Filed:
Jun. 30, 2003
Yuuji Minami, Machida, JP;
Noriyoshi Suga, Hachioji, JP;
Hiromi Nagasaki, Saitama, JP;
Masayuki Kosakada, Fuchu, JP;
Yuuji Minami, Machida, JP;
Noriyoshi Suga, Hachioji, JP;
Hiromi Nagasaki, Saitama, JP;
Masayuki Kosakada, Fuchu, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
A digital protection and control device is so configured that at least parts of a digital data merging unit coupled to sensor units by a transmission medium, a protection and control unit, a communication unit for component control devices coupled to component control devices by a transmission medium, and a process bus communication unit are coupled by a parallel transmission medium, and at least a part of data exchange is based on a multimaster mode. Transmission based on the multimaster mode enables each unit to transmit/receive data independently and enables the reduction in unbalanced communication load. As a result, such a risk can be reduced that time responsiveness of operation is lowered as the entire digital protection and control device due to unbalanced concentration of data bus processing in a particular unit.