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. 15, 2004
Filed:
May. 05, 2003
Dale J. Durand, Irvine, CA (US);
Quentin P. Herr, Torrance, CA (US);
Mark W. Johnson, LaCanada Flintridge, CA (US);
Northrop Grumman Corporation, Los Angeles, CA (US);
Abstract
A superconducting oscillator/counter analog-to-digital converter ( ) that provides simultaneous in-phase and quadrature-phase of an RF input signal. The RF input signal is converted to a series of SFQ input pulses by a superconducting voltage controlled oscillator ( ). A clock circuit ( ) generates a series of SFQ clock pulses. The SFQ input pulses and the SFQ clock pulses are applied to a pulse repulsion circuit ( ) that outputs the SFQ input pulses and the SFQ clock pulses spaced apart in time. In one embodiment, the pulse repulsion circuit ( ) includes two Josephson transmission lines ( ), where the magnetic coupling between the lines ( ) provides the SFQ pulse repulsion.