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:
Sep. 13, 2005
Filed:
Sep. 02, 2003
Applicant:
Prashant Singh, Eden Praire, MN (US);
Inventor:
Prashant Singh, Eden Praire, MN (US);
Assignee:
LSI Logic Corporation, Milpitas, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03B005/18 ;
U.S. Cl.
CPC ...
Abstract
A ring oscillator that uses active negative capacitance at one or more stages of the ring oscillator to adjust the frequency of oscillation. By using a negative capacitance generator, negative capacitance may be placed in shunt with each stage of the ring, thereby reducing the effective input capacitance. Tuning of the ring oscillation frequency is accomplished without changing the bias point of each stage. The ring oscillation frequency may be increased, rather than reduced as in current approaches.