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. 20, 2009
Filed:
Jul. 27, 2005
Hiromichi Yasunori, Nagoya, JP;
Masaki Mori, Kariya, JP;
Morio Sakai, Toyota, JP;
Chiaki Sumi, Chita-gun, JP;
Isao Hagiwara, Nagoya, JP;
Hiromichi Yasunori, Nagoya, JP;
Masaki Mori, Kariya, JP;
Morio Sakai, Toyota, JP;
Chiaki Sumi, Chita-gun, JP;
Isao Hagiwara, Nagoya, JP;
Aisin Seiki Kabushiki Kaisha, Kariya-shi, Aichi-ken, JP;
Abstract
An information request portion receives an information request signal transmitted to an information response portion at its own receiving port. The information request portion comprises at least either of a power supply system anomaly determination portion or a ground anomaly determination portion. The power supply system anomaly determination portion determines a short-circuit between a signal line and a power supply system in a case where the information request signal received at the receiving port is always fixed to a H (high) level. The ground anomaly determination portion determines a short-circuit between a signal line and a ground in a case where the information request signal received at the receiving port is always fixed to a L (Low) level. Consequently, the anomaly region of the signal line connecting the information request portion and the information response portion in such a manner that bidirectional digital communications are possible or the cause of the anomaly is specified.