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. 12, 2005
Filed:
Feb. 17, 2000
Kenji Tomita, Toyohashi, JP;
Ikuo Hayashi, Okazaki, JP;
Yoshihisa Sato, Nagoya, JP;
Toshihiro Wakamatsu, Kariya, JP;
Tomohisa Kishigami, Obu, JP;
Kazunori Sakai, Nishikamo-gun, JP;
Masachika Kamiya, Toyota, JP;
Hiroshi Honda, Okazaki, JP;
Masato Kume, Toyota, JP;
Mikito Yagyu, Toyota, JP;
Kenji Tomita, Toyohashi, JP;
Ikuo Hayashi, Okazaki, JP;
Yoshihisa Sato, Nagoya, JP;
Toshihiro Wakamatsu, Kariya, JP;
Tomohisa Kishigami, Obu, JP;
Kazunori Sakai, Nishikamo-gun, JP;
Masachika Kamiya, Toyota, JP;
Hiroshi Honda, Okazaki, JP;
Masato Kume, Toyota, JP;
Mikito Yagyu, Toyota, JP;
Nippon Soken, Inc., Nishio, JP;
Denso Corporation, Kariya, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Abstract
A multiplex communication system having a data repeater, which can prevent data from being lost so as to improve reliability of data communication, when a data repeater of a multiplex communication system repeats data. A multiplex communication system is made up of a plurality of communication groups including a plurality of communication lines and a data repeater. The data repeater is made up of receiving buffers, sending buffers, a data controller and a transfer-address table. The data controller selects multiplex communication lines through which the received data is to be repeated and transfers the received data thereto. The data controller has a priority-reset means for increasing a priority of a received data before being sent. The priority-reset means prioritizes a sending of the data from the data repeater, even if the data sent from the data repeater collides with the other data on the multiplex communication lines through which the received data is to be repeated. In this way, the priority-reset means prevents the data waiting for being sent in the data repeater from being lost by being overwritten with newly received data.