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:
Feb. 02, 1982
Filed:
Apr. 21, 1980
Applicant:
Inventor:
Harry T Wang, Thousand Oaks, CA (US);
Assignee:
Hughes Aircraft Company, Culver City, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
H03L / ;
U.S. Cl.
CPC ...
331-3 ; 331 941 ;
Abstract
Self-sustained oscillation of the atoms in a maser is achieved in a cavity of reduced size by in-phase feedback for cavity Q-enhancement. Cavity resonant frequency is stabilized using a small reactive element coupled to the maser cavity. The reactance of the small element is precisely controlled so that the resonant frequency of the cavity is stabilized with reference to the radiation frequency of the atoms inside the maser cavity by a feedback control loop using the maser radiation as a reference signal.