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:
May. 14, 2002
Filed:
Dec. 03, 1999
Applicant:
Inventor:
Takashi Sakakura, Tokyo, JP;
Assignee:
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 1/730 ;
U.S. Cl.
CPC ...
G06F 1/730 ;
Abstract
The aim of the present invention is, as for a data communication among the nodes sharing, managing and maintaining the replicated data, to reduce the communication traffic by utilizing attributes of individual communication media. The application program of the node on the transmitting side inserts the data object into the data store, and the data synchronizer transmits an update message including the differential data and the log number. The node on the receiving side compares the log number of the update log data of its node and the log number of the update message it has received, and decides whether or not to adopt the update message.