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:
Mar. 08, 2005
Filed:
Feb. 05, 2002
Toru Fujioka, Kokubunji, JP;
Isao Yoshida, Nishitama, JP;
Mineo Katsueda, Hachioji, JP;
Masatoshi Morikawa, Saitama, JP;
Yoshikuni Matsunaga, Hachioji, JP;
Kenji Sekine, Nishitama, JP;
Osamu Kagaya, Tokyo, JP;
Toru Fujioka, Kokubunji, JP;
Isao Yoshida, Nishitama, JP;
Mineo Katsueda, Hachioji, JP;
Masatoshi Morikawa, Saitama, JP;
Yoshikuni Matsunaga, Hachioji, JP;
Kenji Sekine, Nishitama, JP;
Osamu Kagaya, Tokyo, JP;
Renesas Technology Corp., Tokyo, JP;
Abstract
In a mobile telephone apparatus corresponding to dual-band provided with an RF power module to operate in two kinds of different frequencies, a common harmonics control circuit is provided to the output circuit of such RF power module to realize higher efficiency in view of controlling respective harmonics power for both band frequencies. Moreover, a means for selectively setting the bias is also provided so that the maximum efficiency can be attained depending on the output power required with respective communication systems with the bias control signal output from the CPU of the control unit interlocking with selection of frequency of the mobile telephone apparatus body.