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:
Feb. 17, 1976
Filed:
Jul. 30, 1974
Shizuo Andoh, Kobe, JA;
Kenji Murase, Kakogawa, JA;
Fujitsu Limited, Kawasaki, JA;
Abstract
A system for reading out information in a plasma display memory panel having a set of X and a set of Y electrodes is disclosed in which a forward current is conducted through unidirectional conducting devices having a charge storage effect, for example, charge storage diodes, connected to the X or Y electrodes; a read voltage is applied to one of a selected one of the Y sets of and X electrodes; a charging current due to the read voltage is conducted through the charge storage diodes in a backward direction making use of their backward recovery time; a gas discharge current, after the charging current terminates, flows in the stray capacitance of the selected X or Y electrode, raising its potential relative to the ground potential; and the potential rise is detected to thereby effect read-out of the information.