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:
Oct. 27, 1998
Filed:
May. 16, 1996
Hideki Taniguchi, Tokyo, JP;
Katsushi Asahina, Tokyo, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
A detecting penetration current causing logic part (12a) gives, when the logic is H level at both nodes (N15, N24), the logical product thereof H to a condition adding part (12b) as an activated detection signal. In the condition adding part (12b), it is confirmed that the activation of the detection signal is longer than a specified time, by a delay circuit (G21) and NAND gate (G22). Consequently, logic H is given to a forced logic presenting part (12c). In the forced logic presenting part (12c), NMOS transistors (Q13, Q14) are turned on, and logic L is given by force to both nodes (N15, N24) to get out of a state where a current would flow.