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US Patent 7102388 Interface device and information processing system

Patent 7102388 was granted and assigned to Hitachi on September, 2006 by the United States Patent and Trademark Office.

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Current Assignee
Hitachi
Hitachi
Patent Jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
Patent Number
7102388
Date of Patent
September 5, 2006
Patent Application Number
10357215
Date Filed
February 4, 2003
Patent Primary Examiner
‌
Daniel D Chang
Patent 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.

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