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:
Dec. 18, 1984
Filed:
Apr. 07, 1983
Tetsuo Sato, Takasaki, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
An electric circuit is constructed of a first current mirror circuit and a second current mirror circuit. The first current mirror circuit has a first input transistor, a first coupling transistor and an output transistor, while the second current mirror circuit has a second input transistor, a second coupling transistor and the output transistor. First and second input terminals are respectively connected to the collectors of the first and second input transistors, and a common output terminal is connected to the collector of the output transistor. First and second additional transistors are respectively connected to the first and second input transistors, whereby an output current proportional to either greater value of two input currents supplied to the two input terminals is provided from the common output terminal.