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:
Apr. 03, 1990
Filed:
Apr. 04, 1988
Yutaka Matsuda, Hiratsuka, JP;
Teruhisa Inoue, Ichikawa, JP;
Kyousuke Hashimoto, Hiratsuka, JP;
Kiyoshi Inoue, Atsugi, JP;
Yusaku Himono, Tokyo, JP;
Furukawa Electric Co., Ltd., Tokyo, JP;
Abstract
A multiplex transmission system, in which one of a plurality of nodes, as a transmission node, mutually coupled together through a transmission path transmits data frame by frame to at least one of other nodes as at least one of reception node, and the reception node returns a reception acknowledge signal to the transmitting node upon proper reception of the frame of data. A reception acknowledge signal area comprising a plurality of bits is provided following the frame transmitted from the transmitting node. The reception acknowledge signal area is divided into a plurality of bit areas which are respectively assigned to the plurality of nodes. The reception node returns the reception acknowlege signal to the transmitting node from the respectively-assigned bit areas of the reception acknowledge signal area. As desired, a destination designation area having the same length as the reception acknowledge signal area is provided in a frame and is divided into a plurality of bit areas which are respectively assigned with the plurality of nodes. The individual destination nodes are specified by the respective bit areas of the destination designation area of the frame. Preferably, a pulse width modulation code for discriminating the binary logic based on the size of the pulse width is used as a transmission code at least in the reception acknowledge signal area.