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:
Jan. 25, 2011
Filed:
Jan. 04, 2006
Hideo Morohashi, Kanagawa, JP;
Hideo Morohashi, Kanagawa, JP;
Sony Corporation, Tokyo, JP;
Abstract
A signal processing circuit having a modulator having frequency conversion circuits, each having a local oscillator and a mixer. The circuit multiplies a signal having a first frequency and a local oscillation signal from the local oscillator at the mixer to convert the frequency of the first frequency signal to a second frequency, outputs a current format frequency converted signal and a first gain control circuit amplifying the current format frequency converted signals from the frequency conversion circuits by a first gain in accordance with a first control voltage. The circuit also outputs the current format amplified signals and a second gain control circuit connected after the first gain control circuit and having at least one gain control circuit which amplifies a current format amplified signal output from the first gain control circuit by a second gain.