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:
Nov. 27, 1990
Filed:
Oct. 13, 1989
Yoshiyuki Shimokawa, Tokyo, JP;
Kimito Idemori, Tokyo, JP;
Kabushiki Kaisha Toshiba, Kanagawa, JP;
Abstract
A system of transmitting data and frame signals distinguishable from the data between a plurality of nodes linked in ring form. Each node comprising two transmitter circuits for simultaneously transmitting data and frame signals in opposite directions, respectively, two receiver circuits for receiving the data and the frame signals from opposite directions, respectively, a priority circuit for selecting the data first received from the two opposite directions, a frame circuit for detecting receipt of the frame signals and generating frame signals, and a control circuit for detecting data transmission faults and supervising data transmission of the system according to the location of the fault in the system, in response to the frame signals.