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. 26, 1992
Filed:
Nov. 13, 1989
Applicant:
Inventor:
Robert W Johnson, Jr, Raleigh, NC (US);
Assignee:
Exide Electronics, Raleigh, NC (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02H / ; H02H / ; H02J / ;
U.S. Cl.
CPC ...
361 66 ; 307 66 ; 365229 ; 371 66 ;
Abstract
Method and apparatus for providing protected power to a computer. A computer monitors the terminal voltage and/or current of a battery supplying power to the computer and uses this information or data to determine when, in the event of failure of the AC utility normally supplying power to the computer, to initiate a pre-programmed automatic shutdown of the computer. The determination is based upon the estimated remaining charge of the battery and the total time required to close all active programs in an orderly fashion; thus allowing the computer to be restarted in a well-defined state.