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:
Sep. 11, 1990
Filed:
Nov. 22, 1988
Yutaka Harada, Tokyo, JP;
Research Development Corporation of Japan, Tokyo, JP;
Abstract
A superconducting analog to digital converter comprises a plurality of comparators, each of which includes a quantum flux parametron having a superconducting loop with two Josephson devices and exciting inductors, a first load inductor connected to the superconducting loop, and means for supplying exciting current to inductors inductively coupled with said exciting inductors and an rf-SQUID comprising a superconducting loop with a second load inductor and a Josephson device, whereby an input signal is converted to a positive or negative signal by the rf-SQUID for each unit change of the input signal by the amount of the magnetic flux quantum and then the converted signal is sampled and amplified by the quantum flux parametron.