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:
Dec. 07, 2010
Filed:
Jun. 11, 2008
Takashi Shikata, Kawasaki, JP;
Takashi Shikata, Kawasaki, JP;
Fujitsu Semiconductor Limited, Yokohama, JP;
Abstract
A semiconductor device includes first and second memory circuits that are disposed in different power source blocks and operate in synchronization with a clock, first and second delay circuits that are connected between output terminals of one memory circuits and input terminals of the other memory circuits, and a determination circuit that determines whether it is a situation that can cause malfunction based on an input signal and an output signal in the memory circuits and outputs a determination result as an error detection signal. To the first and second memory circuits, different initial values are given, and it is monitored whether a signal is sent and received between the memory circuits in a toggle state or not. Thus, occurrence of a situation that can cause malfunction can be simply and quickly detected.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile