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:
Mar. 16, 2004
Filed:
Nov. 30, 2001
Applicant:
Inventors:
Pradeep Trivedi, Sunnyvale, CA (US);
Gin Yee, Sunnyvale, CA (US);
Assignee:
Sun Microsystems, Inc., Santa Clara, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03K 5/19 ;
U.S. Cl.
CPC ...
H03K 5/19 ;
Abstract
A clock detect indicator capable of determining the presence of high and low frequency clock signals is provided. The clock detect indicator, which operates independent of a reference clock, has detection circuitry that determines whether a particular clock signal has alternating high-to-low and low-to-high transitions. Based on the determination, the clock detect indicator outputs a transition on a clock detect indication signal. Further, a method for detecting a clock signal in an integrated circuit is provided.