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:
Jul. 07, 1992
Filed:
Sep. 19, 1991
Applicant:
Inventor:
Yutaka Harada, Tokyo, JP;
Assignee:
Research Development Corporation of Japan, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
H03M / ;
U.S. Cl.
CPC ...
341133 ; 341149 ;
Abstract
In a superconducting digital to analog converter, shunt branches of a ladder resistor network are connected to corresponding Josephson devices, the states of which are switched by a digital signal. Currents following through the Josephson devices or load resistors of the Josephson devices are collected to obtain an analog signal corresponding to the digital signal.