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. 08, 2016
Filed:
Aug. 19, 2015
Qualcomm Incorporated, San Diego, CA (US);
Cheng-Han Wang, San Jose, CA (US);
Keplin Victor Johansen, Campbell, CA (US);
Jeongsik Yang, San Jose, CA (US);
Justin Phelps Black, Santa Clara, CA (US);
Qualcomm Incorporated, San Diego, CA (US);
Abstract
Methods and apparatus for synchronizing dividers in different LO paths using pulse swallowing. One example apparatus generally includes a first path having a first frequency divider configured to generate a first divided signal from a first periodic signal; a second path having a second frequency divider configured to generate a second divided signal from a second periodic signal; a phase detector configured to compare phases of a first sensing signal based on the first divided signal and a second sensing signal based on the second divided signal and to generate a first trigger signal if the first and second sensing signals are out-of-phase; and a first pulse suppressor configured to suppress a pulse of the first periodic signal for at least one cycle in response to the first trigger signal to adjust a phase of the first divided signal.