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. 30, 2010
Filed:
Dec. 20, 2005
Steven J. Fraasch, Maple Grove, MN (US);
Russell E. Cook, Jr., Maple Grove, MN (US);
Jan B Wilstrup, Mounds View, MN (US);
Peng LI, Palo Alto, CA (US);
Steven J. Fraasch, Maple Grove, MN (US);
Russell E. Cook, Jr., Maple Grove, MN (US);
Jan B Wilstrup, Mounds View, MN (US);
Peng Li, Palo Alto, CA (US);
Gigamax Technologies, Inc., Eden Prairie, MN (US);
Abstract
A clock recovery system includes a rough clock generator, which yields a rough clock signal, based upon logic level transitions exhibited by a data signal. The rough clock signal is supplied to a phase locked loop having an adjustable order of frequency response, an adjustable corner frequency, an adjustable natural frequency, and/or an adjustable damping factor. The clock recovery system includes control parameters that, when properly adjusted, suppress non-ideal effects of components within the clock recovery system, and also permit the frequency response of the phase locked loop to be returned to a desired response.