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:
Mar. 07, 2006
Filed:
Aug. 26, 2005
Nobuyasu Kanekawa, Hitachi, JP;
Shoji Sasaki, Hitachinaka, JP;
Katsuya Oyama, Hitachinaka, JP;
Tomonobu Koseki, Hitachinaka, JP;
Nobuyasu Kanekawa, Hitachi, JP;
Shoji Sasaki, Hitachinaka, JP;
Katsuya Oyama, Hitachinaka, JP;
Tomonobu Koseki, Hitachinaka, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
This resolver/digital converter has a resolver, a resolver/digital converting portion and an exciting signal generator. The exciting signal generated from the exciting signal generator is supplied to the resolver, and the resolver signals produced from the resolver are supplied to the resolver/digital converter. This resolver/digital converter further has a conversion trigger generator that generates a conversion trigger signal on the basis of the exciting signal generated from the exciting signal generator, an A/D converter that converts the resolver signals produced from the resolver to digital values in response to the conversion trigger signal generated from the conversion trigger generator, and computing means that detects the failure status on the basis of the digital values produced from the A/D converter.