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:
Jul. 01, 2014
Filed:
Jul. 24, 2013
Murata Manufacturing Co., Ltd., Nagaokakyo, JP;
Tomohide Aramata, Nagaokakyo, JP;
Murata Manufacturing Co., Ltd., Kyoto, JP;
Abstract
A power amplification circuit amplifies and then outputs transmission signals of a first frequency and a second frequency, which are different from each other. When the transmission signal of the first frequency is input, a first switch is turned ON, a first LC parallel resonant circuit enters a resonant state and the transmission signal is transmitted using a line containing a first capacitor as a main line. When the transmission signal of the second frequency is input, a second switch is turned ON, a second LC parallel resonant circuit enters a resonant state and the transmission signal is transmitted using a line containing a second capacitor as a main line. Therefore, a transmission signal does not pass through, using as a main line, a line into which a switch has been incorporated.