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. 03, 1994
Filed:
Aug. 28, 1991
Applicant:
Inventor:
Masashi Hirome, Kawasaki, JP;
Assignee:
Fujitsu Limited, Kawasaki, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04J / ; H04J / ; H04J / ;
U.S. Cl.
CPC ...
370 8512 ; 370 941 ; 371-81 ; 375 38 ; 34089505 ;
Abstract
A multi-ring data transmission system which uses a plurality of transmission lines and provides a first circuit to add a sequential number of each of data packets and transmit the data packets to each of the transmission lines. A second circuit error check whether each of the data packets received via each of the transmission lines is normal or erroneous. A third circuit successively employs the data packets which are determined as being normal in the second circuit and are received via one of the transmission lines as received data packets in a sequence of the sequential numbers.