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:
Sep. 30, 2003
Filed:
Aug. 01, 2002
Applicant:
Inventors:
James A. Johnson, Savage, MN (US);
Eric R. Lovegren, Big Lake, MN (US);
Assignee:
Rosemount Inc., Eden Prairie, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01S 1/308 ;
U.S. Cl.
CPC ...
G01S 1/308 ;
Abstract
A low power pulsed radar level transmitter has first and second pullable oscillator circuits that are offset from one another by a frequency offset. A third or reference crystal oscillator couples a reference frequency output to phase comparators in both the first and second crystal oscillator circuits. The phase comparators adjust biases on varactor diodes that pull the transmit and receive frequencies.
Johnson, James. (2003). Stabilization of oscillators in a radar level transmitter (U.S. Patent No. 6628229). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6628229
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile