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:
Jun. 02, 1992
Filed:
Feb. 20, 1991
Leon Riebman, Rydal, PA (US);
American Electronic Laboratories, Inc., Lansdale, PA (US);
Abstract
A low-noise cryogenic oscillator has a resonant circuit formed of superconducting material for generating a signal at a desired frequency. A linear amplifier and a limiter are electrically connected to the resonant circuit at first, second and third locations. A buffer amplifier is electrically connected to the resonant circuit at a fourth location and applies the signal generated by the resonant circuit to a load. The first, second, third and fourth locations are selected to minimize the impedance from those locations to ground at 1/f frequencies. The resonant circuit, the linear amplifier, the limiter and the buffer amplifier are all maintained at a temperature below the critical temperature of the superconducting material.