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. 04, 1990
Filed:
Jul. 25, 1988
Applicant:
Inventor:
Mitsuhiro Noboru, Sakai, JP;
Assignee:
Sharp Kabushiki Kaisha, Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04B / ; H04B / ;
U.S. Cl.
CPC ...
455188 ; 455189 ; 455343 ;
Abstract
A two-band low noise frequency converter coupled, for example, to RF signals from a satellite and receiving at least two frequency bands therefrom including relay switch means for switching from one frequency band to another and control means which is responsive to the low level of a bi-level power-supply voltage being fed through an IF output terminal to operate the switch means. This reduces the power consumption and the heat generated thereby.