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:
Jun. 17, 2014
Filed:
May. 21, 2012
Applicant:
Michael Robert Patrizi, Allen, TX (US);
Inventor:
Michael Robert Patrizi, Allen, TX (US);
Assignee:
Raytheon Company, Waltham, MA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03K 3/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A dual mode frequency synthesizer circuit including: a DDS or PLL () for receiving an input clock () and generating an output clock (), in a high resolution mode; and an RF switch () having its output () coupled to the output of the DDS or PLL, a first input () for receiving a first injection low phase-noise clock (F), a second input () for receiving a second injection low phase-noise clock (F), and a control input () for selecting one of the first or second injection low phase-noise clocks for a low phase-noise mode.