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:
Aug. 30, 2005
Filed:
Mar. 13, 2003
Yoshitomo Tokumoto, Nabari, JP;
Naoki Maeda, Kashihara, JP;
Mahito Shiba, Kashiwara, JP;
Koyo Seiko Co., Ltd., Osaka, JP;
Abstract
A rotational angle detecting apparatus wherein one or more first targetsare provided on a steering shaftso that first detecting meansA outputs a detection signal as the steering shaftrotates, second detecting meansB outputs a detection signal having a phase different from that of the detection signal of the first detecting meansA, and the rotational angle of the steering shaftis detected on the basis of the detection signals outputted by the first detecting meansA and the second detecting meansB. A rotational angle detecting apparatus further comprising second targets, the number of which is prime to the number of the first targets, provided on the steering shaft, third detecting meansA, disposed opposite to the second targets, for outputting a detection signal as the steering shaftrotates, and fourth detecting meansB for outputting a detection signal having a phase different from that of the detection signal of the third detecting meansA, wherein the rotational angle of the steering shaftis detected on the basis of the detection signals outputted by the first to fourth detecting meansA,B,A andB, thereby being capable of detecting an absolute rotational angle.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile