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. 17, 2012
Filed:
Dec. 09, 2009
Ai-ning Song, Shanghai, CN;
Teng-huei Chu, Taipei, TW;
Chang-pu Lin, Taipei, TW;
Chong Xu, Shanghai, CN;
Qi-jian HU, Shanghai, CN;
Ai-Ning Song, Shanghai, CN;
Teng-Huei Chu, Taipei, TW;
Chang-Pu Lin, Taipei, TW;
Chong Xu, Shanghai, CN;
Qi-Jian Hu, Shanghai, CN;
Ambit Microsystems (Shanghai) Ltd., Shanghai, CN;
Hon Hai Precision Industry Co., Ltd., Tu-Cheng, New Taipei, TW;
Abstract
A radio frequency (RF)-based communication terminal includes a first switching chip, a second switching chip, a comparison module, a low noise amplifier (LNA), a first filter, a power amplifier (PA), a second filter, and a control module. The comparison module compares the power of a radio signal Rx received from a base station with a pre-stored signal and to output a control signal according to the comparison result. The control module controls conductive modes of the first and the second switching chips according to the control signal. In the first conductive mode, a radio signal Tx is sent out from the PA and the second filter. In the second conductive mode, the radio signal Tx is exchanged to send out from the LNA and first filter.