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:
Jun. 13, 2000
Filed:
Jun. 11, 1999
Akira Hamakawa, Tokyo, JP;
Kazuya Sugita, Tokyo, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
A first sense amplifier reads from a first memory cell array at a normal equilibrium point between a read-'0' operation and a read-'1' operation. A second sense amplifier detects data dissipation by reading data at an equilibrium point higher than the normal equilibrium point, from a second memory cell array provided for detection of data dissipation and having the same characteristic as the first memory cell array. An interrupt control circuit issues an interrupt request to a CPU so as to stop its operation. Subsequently, in response to an instruction from a memory overwrite control circuit, a write/read/erasure control circuit overwrites data stored in the first memory cell array.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile