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:
May. 31, 1983
Filed:
Dec. 05, 1980
Masanori Itoh, Suzaka, JP;
Minoru Tanaka, Obusemachi, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
Disclosed is a driving circuit of a gas discharge panel comprising X-electrode rows and Y-electrode columns arranged in a matrix. In order to decrease the number of driving elements, the X-electrode driver is comprised of a first up drive circuit commonly used for applying a discharge sustaining voltage and a write-in voltage to the X electrodes, and a first down drive circuit for grounding the first up drive circuit when the discharge sustaining voltage or the write-in voltage is not applied to the X electrodes. Also, the Y-electrode driver is comprised of a second up drive circuit for applying a discharge sustaining voltage to the Y electrodes, a second down drive circuit for grounding the second up drive circuit when the discharge sustaining voltage is not applied to the Y electrodes, a write-in driver for applying a write-in voltage to the Y electrodes, and a clamping circuit for grounding the Y electrodes when the write-in voltage is not applied to the Y electrodes.