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. 13, 2010
Filed:
Feb. 16, 1978
George R. Spencer, Needham, MA (US);
James Williamson, Franklin, MA (US);
Paul G. Crete, Chelmsford, MA (US);
George R. Spencer, Needham, MA (US);
James Williamson, Franklin, MA (US);
Paul G. Crete, Chelmsford, MA (US);
Raytheon Company, Lexington, MA (US);
Abstract
A circuit for compensating for frequency modulation on a radar signal is disclosed. The disclosed circuit includes an adaptive narrow band filter in the feedback path of a phase-locked detector, such filter having a bandwidth which is narrower than the frequency range of the signal being compensated, and means for detecting the amplitude of such signal. The invention herein described was made in the course of, or under a contract or subcontract thereunder, with the Department of Defense.