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:
Feb. 25, 1997
Filed:
Feb. 17, 1995
Applicant:
Inventors:
Kiyomitsu Onodera, Kanagawa, JP;
Masahiro Muraguchi, Kanagawa, JP;
Assignee:
Nippon Telegraph and Telephone Corp., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
H04B / ;
U.S. Cl.
CPC ...
455333 ; 327358 ; 327363 ;
Abstract
A frequency conversion circuit having at least one transistor with an input terminal and an output terminal. A frequency signal to be converted or a local oscillator (LO) signal is input to the input terminal, and a converted frequency signal is output from the output terminal. A linear feedback circuit allowing at least a radio frequency (RF) signal and the LO signal to feed back is directly connected across the input and output terminals.