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:
Apr. 18, 2017
Filed:
Sep. 08, 2016
Oleksandr Chenakin, San Jose, CA (US);
Syama Nediyanchath, Morgan Hill, CA (US);
Oleksandr Chenakin, San Jose, CA (US);
Syama Nediyanchath, Morgan Hill, CA (US);
Other;
Abstract
A low phase noise PLL synthesizer is described in which an initial tuning mechanism uses a conventional divider loop to lock a VCO to a desired output frequency. Once initial lock is achieved, the divider loop is switched out of the circuit in favor of a low phase noise mixer loop. The reference frequency source for the low phase noise loop includes a mixer/divider up-conversion chain at the output of a direct digital synthesizer. This permits fine frequency resolution from the DDS but maintains a high phase detector comparison frequency and therefore fast frequency switching speed.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile