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:
Oct. 03, 1978
Filed:
Feb. 10, 1978
Applicant:
Inventor:
Erich Hafner, Tinton Falls, NJ (US);
Assignee:
The United States of America as represented by the Secretary of the Army, Washington, DC (US);
Primary Examiner:
Int. Cl.
CPC ...
H03B / ;
U.S. Cl.
CPC ...
331-2 ; 331 / ; 331 25 ; 331 27 ;
Abstract
Apparatus utilizing single sideband techniques for generating a local oscator signal of high spectral purity which is offset from a relatively wide-band signal generator frequency f.sub.g = 0.8 - 220MHz by a constant IF frequency difference f.sub.o = 46KHz. The output signal is coupled from one of a plurality of phase locked oscillators having overlapping frequency ranges which act as active filters to obtain improved spectral purity.