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:
Oct. 28, 2008
Filed:
Aug. 16, 2005
Praveen Kalamegham, Austin, TX (US);
Nathan D. Sportsman, Austin, TX (US);
Keith A. Whisnant, LaJolla, CA (US);
Praveen Kalamegham, Austin, TX (US);
Nathan D. Sportsman, Austin, TX (US);
Keith A. Whisnant, LaJolla, CA (US);
Sun Microsystems, Inc., Santa Clara, CA (US);
Abstract
One embodiment of the present invention provides a system that identifies a drift in a signal in a computer system. During operation, the system receives a sequence of quantized signal values of the signal. Next, the system generates a statistical distribution based on the sequence of quantized signal values, wherein the statistical distribution is generated using a set of counters, wherein each counter keeps track of the number of occurrences of an associated quantized signal value. The system periodically adjusts the counters by multiplying each counter by a compression factor if the system determines the sum of the set of counters is greater than or equal to a threshold. The system identifies the drift in the signal by comparing the statistical distribution with a reference distribution of the quantized signal values, wherein the reference distribution is associated with normal operation of the computer system.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile