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. 20, 2010
Filed:
Dec. 29, 2008
Fumio Murabayashi, Urizura, JP;
Takashi Sase, Hitachi, JP;
Mutsumi Kikuchi, Hitachi, JP;
Atsuo Watanabe, Hitachiota, JP;
Masatsugu Amishiro, Hitachi, JP;
Kenji Tabuchi, Hitachinaka, JP;
Fumio Murabayashi, Urizura, JP;
Takashi Sase, Hitachi, JP;
Mutsumi Kikuchi, Hitachi, JP;
Atsuo Watanabe, Hitachiota, JP;
Masatsugu Amishiro, Hitachi, JP;
Kenji Tabuchi, Hitachinaka, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A first converter circuit converts a state signal, whose level is constant or slowly varies during a predetermine period of time, into a pulse signal to allow the signal to propagate across an electrically insulating area. A second converter circuit converts the pulse signal, which has propagated through an insulating circuit, into the original state signal or a signal having the same characteristics as the original state signal.