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. 12, 1988
Filed:
Dec. 23, 1985
Applicant:
Inventor:
Frederick O Miesterfeld, Troy, MI (US);
Assignee:
Chrysler Motors Corporation, Highland Park, MI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H05B / ;
U.S. Cl.
CPC ...
3151691 ; 3151694 ; 340 74 ; 340 77 ; 340 79 ; 340766 ; 340781 ; 340789 ; 340803 ; 34082522 ;
Abstract
A microcomputer controls the energization of both a transformer and display latch driver in a power supply for a vacuum fluorescent display to prevent display flashing at power down. Also provided is the synchronization of the filament voltage to the grid voltage to prevent display pulsations.