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:
May. 28, 2002
Filed:
Oct. 24, 2000
Masahiro Fujii, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
A mixer circuit includes first to fourth input terminals, a first transistor having a base electrically connected to the first input terminal, a second transistor having a base electrically connected to the second input terminal, third and fourth transistors each having a base electrically connected to the third input terminal, fifth and sixth transistors each having a base electrically connected to the fourth input terminal, the first transistor having a collector electrically connected to emitters of the third and fifth transistors, the second transistor having a collector electrically connected to emitters of the fourth and sixth transistors, the third transistor having a collector electrically connected to a collector of the sixth transistor, the fourth transistor having a collector electrically connected to a collector of the fifth transistor, a first impedance element connected between the first input terminal and the second transistor, and a second impedance element connected between the second input terminal and the first transistor.