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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.:

US 5854915 B1

PDFFull Text
Date of Patent:
Dec. 29, 1998

Filed:

Nov. 22, 1996

Keyboard controller with integrated real time clock functionality and

Applicant:
Inventors:

Lonnie C Goff, Tempe, AZ (US);

David R Evoy, Tempe, AZ (US);

Mark Eidson, Tempe, AZ (US);

Brian Logsdon, Akron, OH (US);

Assignee:

VLSI Technology, Inc., San Jose, CA (US);

Attorneys:

Weiss; Harry M.

Moy; Jeffrey D.

Primary Examiner:

Kevin J Teska

Assistant Examiner:

Thuan Do

Int. Cl.
CPC ...
H03K / ;
U.S. Cl.
CPC ...
395500 ; 395821 ; 395840 ;
Abstract

A keyboard controller for a computer system with integrated Real Time Clock (RTC) functionality. The keyboard controller has a microprocessor for controlling peripheral device bus traffic such as keyboard and mouse traffic. The microprocessor also acts as a boot device for the computer system. By programming the microprocessor to emulate RTC functions, adding a divider circuit, and having an I/O support block which stores RTC registers and an extended CMOS RAM memory block, the entire RTC FSB along with its power detection and switching circuit can be removed.

Find Patent Forward Citations

Goff, Lonnie. (1998). Keyboard controller with integrated real time clock functionality and (U.S. Patent No. 5854915). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5854915

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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