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:
Oct. 30, 2007
Filed:
Jan. 10, 2003
Hidefumi Ishimoto, Ibaraki-ken, JP;
Yoshinori Eguchi, Tsuchiura, JP;
Takao Kurosawa, Ibaraki-ken, JP;
Hiroshi Ogura, Ryuugasaki, JP;
Junichi Narisawa, Adachi-ku, JP;
Hidefumi Ishimoto, Ibaraki-ken, JP;
Yoshinori Eguchi, Tsuchiura, JP;
Takao Kurosawa, Ibaraki-ken, JP;
Hiroshi Ogura, Ryuugasaki, JP;
Junichi Narisawa, Adachi-ku, JP;
Hitachi Construction Machinery Co., Ltd., Tokyo, JP;
Abstract
In an electronic control system for a construction machine, a governor control unit, an excavator body control unit, and an electric lever control unit are interconnected for transmission and reception of data. A universal communication line is connected to the governor control unit and is adapted for an interface in conformity with universal communication standards A dedicated communication line is connected to the excavator body control unit and the electric lever control unit and is adapted for an interface in conformity with dedicated communication standards different from the univeral communication standards. A communication relay control unit is used for, converting and transmitting communication data received from one of two systems of the communication lines to be in conformity with the communication standards of the other communication line.