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:
Feb. 11, 2020
Filed:
Oct. 30, 2018
Qualcomm Incorporated, San Diego, CA (US);
Bo Sun, Carlsbad, CA (US);
QUALCOMM Incorporated, San Diego, CA (US);
Abstract
A delay-locked loop (DLL) is provided that includes both a first delay line and a second delay line. The delay-locked loop functions to synchronize a DLL output clock signal relative to a received clock signal using the first delay line while a phase difference between the received clock signal and a received data signal corresponds to a delay within an operating range for the first delay line. As the phase difference increases to force the first delay line out of its operating range, the delay-locked loop transitions to using the second delay line to synchronize the DLL output clock signal relative to the received clock signal.