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:
Jul. 05, 2011
Filed:
Jun. 30, 2009
Hisashi Nishimura, Tokyo, JP;
Kenichi Nakazato, Toyko, JP;
Hisashi Nishimura, Tokyo, JP;
Kenichi Nakazato, Toyko, JP;
Japan Aviation Electronics Industry Limited, Tokyo, JP;
Abstract
An A/B-phase signal generator wherein an up/down count unitC counts up by an up-count command or counts down by a down-count command at fixed intervals, an angle comparison unitcompares the count result ACNT of up/down count unitC with an input rotation angle θ and generates a count request, which is an up-count request or a down-count request, a count request comparison unitB compares a previous count request with a next count request and generates an up-count command or a down-count command only when the previous count request and the next count request are both up-count requests or down-count requests, respectively, and an A/B-phase pulse generatorreceives a least significant bit and a second least significant bit of up/down count unitC and generates and outputs an A-phase pulse signal and a B-phase pulse signal.