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:
Nov. 12, 1996
Filed:
Jan. 12, 1994
Kelvin S Vartti, Vadnais Heights, MN (US);
Thomas T Kubista, Eagan, MN (US);
Ferris T Price, deceased, late of Mayer, MN (US);
Unisys Corporation, Blue Bell, PA (US);
Abstract
A glitch free clock switching circuit which produces a predictable and specifiable number of clock pulses to the system elements when switching between clock signals, even during full operation. In addition, the present invention has the capability of only switching between clocks at times that coincides with every Nth clock cycle. This is important in various types of computers systems including high reliability systems because it results in a clock switching circuit which can provide a clock signal which remains consistent throughout the computer system even in light of multiple hardware failures.