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:
Oct. 01, 2013
Filed:
Dec. 08, 2011
Kenichi Shimamoto, Kanagawa, JP;
Yoshiaki Harasawa, Kanagawa, JP;
Tadashi Matsuoka, Kanagawa, JP;
Renesas Electronics Corporation, Kanagawa, JP;
Abstract
There is provided a radio-frequency module and a radio communication system capable of supporting multiple bands at low cost or small size. A high-frequency power amplifier device includes a power amplifier circuit unit for GSM and a control circuit outputting antenna switch control signals with a VSWlevel or a VSWlevel in response to a mode setting signal for selecting GSM or W-CDMA. The VSWlevel is generated by boosting the VSWlevel using a clock signal from an oscillation circuit. When GSM is selected by the mode setting signal, the high-frequency power amplifier device stops the oscillation circuit and outputs the antenna switch control signals of the VSWlevel to an antenna switch device. When W-CDMA is selected by the mode setting signal, the high-frequency power amplifier device outputs the antenna switch control signals of the VSWlevel to the antenna switch device, using the oscillation circuit.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile