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. 03, 2012
Filed:
Nov. 25, 2008
Motoyuki Okayama, Osaka, JP;
Hiroshi Iwai, Osaka, JP;
Motohiko Sako, Osaka, JP;
Hidenori Kitamura, Osaka, JP;
Yuta Yamamoto, Osaka, JP;
Motoyuki Okayama, Osaka, JP;
Hiroshi Iwai, Osaka, JP;
Motohiko Sako, Osaka, JP;
Hidenori Kitamura, Osaka, JP;
Yuta Yamamoto, Osaka, JP;
Panasonic Corporation, Osaka, JP;
Abstract
An amplifying circuit with a bypassing function includes an input terminal to which a signal is input from an antenna, an amplifier connected to the input terminal, a first inductor connected between the input port and a ground, and a bypass circuit connected between the input terminal and the output port of the amplifier. The bypass circuit includes a first port connected to the input terminal, a second port connected to the output port of the amplifier, a switch, a capacitor, and a second inductor. The switch is connected in series between the first and second ports. The capacitor is connected in series to the switch between the first and second ports. The second inductor is connected in series to the switch and the capacitor between the first and second ports. Signal power is not reduced drastically even when the signal passes through the bypass circuit.