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:
Apr. 27, 2004
Filed:
Oct. 17, 2000
Applicant:
Inventor:
Motohisa Nishina, Osaka, JP;
Assignee:
Sharp Kabushiki Kaisha, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B 1/00 ;
U.S. Cl.
CPC ...
H04B 1/00 ;
Abstract
In a signal processing circuit of an LNB (Low Noise Block down converter), a power supply circuit is driven by DC voltage applied from four tuners via four signal input/output terminals to generate supply voltage for the LNB and equally distribute consumption current of the LNB among the four signal input/output terminals. Even if the level of the DC voltage from the four tuners is changed, currents of the same value flow through the four signal input/output terminals. Therefore, there is less noise compared with the conventional circuit having a signal input/output terminal allowing current to flow that varies.