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:
Apr. 01, 2008
Filed:
Nov. 24, 2004
Per Hamberg, Kisa, SE;
Christer Karlsson, Linköping, SE;
Per-erik Nordal, Asker, NO;
Nicklas Ojakangas, Linköping, SE;
Johan Carlsson, Linköping, SE;
Hans Gude Gudesen, Brussels, BE;
Per Hamberg, Kisa, SE;
Christer Karlsson, Linköping, SE;
Per-Erik Nordal, Asker, NO;
Nicklas Ojakangas, Linköping, SE;
Johan Carlsson, Linköping, SE;
Hans Gude Gudesen, Brussels, BE;
Thin Film Electronics ASA, Oslo, NO;
Abstract
In a method for reducing detrimental phenomena related to disturb voltages in a data storage apparatus employing passive matrix addressing, particularly a memory device or a sensor device, an application of electric potentials conforming to an addressing operation is generally controlled in a time-coordinated manner according to a voltage pulse protocol. In an addressing operation a data storage cell is set to a first polarization state by means of a first active voltage pulse and then, dependent on the voltage pulse protocol, a second voltage pulse which may be a second active voltage pulse of opposite polarity to that of the first voltage pulse, is applied and used for switching the data storage cell to a second polarization state. The addressed cell is thus set to a predetermined polarization state as specified by the addressing operation. The data storage cells of the apparatus are provided in two or more electrically separated segments such that each segment comprises a separate physical address space for the apparatus. In an addressing operation the data are directed to a segment that is selected based on information on prior and/or scheduled applications of active voltage pulses to the segments.