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:
Nov. 13, 2012
Filed:
Nov. 17, 2010
Erik P. Machnicki, San Jose, CA (US);
James D. Ramsay, San Jose, CA (US);
Sanjay Mansingh, Santa Clara, CA (US);
Erik P. Machnicki, San Jose, CA (US);
James D. Ramsay, San Jose, CA (US);
Sanjay Mansingh, Santa Clara, CA (US);
Apple Inc., Cupertino, CA (US);
Abstract
A delay locked loop (DLL) having an accelerated training interval during a voltage change. An integrated circuit (IC) includes a master DLL configured to generate a clock signal based upon a reference clock signal. The master DLL may train to the reference clock signal in response to a control signal. The IC also includes a control unit that is coupled to the master DLL and may provide the control signal at a first interval in response to receiving an indication that a supply voltage is being changed, and provide the control signal at a second interval in the absence of the indication.