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:
Jan. 19, 1988
Filed:
May. 14, 1986
Applicant:
Inventors:
Assignee:
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03L / ;
U.S. Cl.
CPC ...
331-2 ; 331 16 ; 331 18 ; 331 46 ; 331179 ;
Abstract
A microwave frequency synthesizer comprised of a phase-locked loop having a low noise and highly stabilized reference voltage-controlled oscillator and further two phase-locked loops each having a stabilized voltage controlled oscillator, the signal outputs from which are frequency-converted with as small multiplication factors as possible. This frequency synthesizer can minimize the phase noise that may be generated by frequency dividers in a digital system.