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:
Jan. 27, 1981
Filed:
May. 09, 1979
Kim H Carpenter, Cambridge, OH (US);
Robert R O'Dell, Cambridge, OH (US);
NCR Corporation, Dayton, OH (US);
Abstract
A driving circuit arrangement for a gas-discharge display device operated asynchronously by a blanking signal generated in a processor applies a voltage level to each of the cells of the display device which is below the voltage level required to fire the cells upon the generation of the blanking signal. This arrangement enables the selected cells to fire upon the subsequent removal of the blanking signal. Switching members are operated by the generation of the blanking signal to precharge each of the cells in the display device during the blanking interval in which data transmitted from the processor selects the character to be displayed.