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. 26, 2016
Filed:
Mar. 03, 2014
Applicant:
Panasonic Corporation, Osaka, JP;
Inventor:
Takayuki Tsukizawa, Kanagawa, JP;
Assignee:
Panasonic Corporation, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B 1/04 (2006.01); H03G 3/30 (2006.01);
U.S. Cl.
CPC ...
H03G 3/3042 (2013.01); H04B 2001/0416 (2013.01);
Abstract
In a wireless communication device, baseband variable gain amplifiers amplify a baseband signal. Mixers convert the amplified baseband signal into a high-frequency transmission signal. Hybrid variable gain amplifiers amplify an in-phase local signal and an orthogonal local signal which are input to the mixers. The level detection controller changes respective gains of the baseband variable gain amplifiers and the hybrid variable gain amplifiers, in response to power of the high-frequency transmission signal.