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. 15, 2009
Filed:
May. 19, 2006
Mark Miller, Mission Viejo, CA (US);
Chilan T. Nguyen, Tustin, CA (US);
Mark Miller, Mission Viejo, CA (US);
Chilan T. Nguyen, Tustin, CA (US);
Conexant Systems, Inc., Newport Beach, CA (US);
Abstract
There is provided a method of modifying a first clock to generate a second clock with reduced electromagnetic interference (EMI). The method comprises receiving the first clock, generating an upslew modulation form during an upslew frequency transition, generating a downslew modulation form during a downslew frequency transition, modulating a frequency of the first clock over a period of time using the upslew modulation form and the downslew modulation form to generate the second clock, and wherein the upslew modulation form and the downslew modulation form are different. The upslew modulation form and the downslew modulation form are defined by upslew modulation values and downslew modulation values, respectively, and the method further comprises receiving the upslew modulation values and the downslew modulation values, and generating fractional upslew modulation values and fractional downslew modulation, respectively, for modulating the frequency of the first clock.