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:
Jul. 07, 1998
Filed:
Mar. 11, 1997
Applicant:
Inventor:
B Tod Cox, Houston, TX (US);
Assignee:
Compaq Computer Corporation, , US;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
39575008 ;
Abstract
A power supply circuit is provided for a battery powered real time clock in a microprocessor based computer system. The power supply circuit monitors the output of the original battery and provides a warning indication when the battery output begins to drift or fade. A replacement battery may then be connected to the circuit. The circuit then substitutes power from the replacement battery for that from the original battery.