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. 02, 2010
Filed:
Jul. 10, 2006
Jen-chung Chang, Jhongli, TW;
Chia-jung Hsu, Hsinchu, TW;
Shey-shi LU, Taipei, TW;
Hsiao-chin Chen, Hsinchu, TW;
Yu-yee Liow, Jhubei, TW;
Jen-Chung Chang, Jhongli, TW;
Chia-Jung Hsu, Hsinchu, TW;
Shey-Shi Lu, Taipei, TW;
Hsiao-Chin Chen, Hsinchu, TW;
Yu-Yee Liow, Jhubei, TW;
United Microelectronics Corp., Hsinchu, TW;
National Taiwan University, Taipei, TW;
Abstract
A frequency-converting circuit and a down converter with the frequency-converting circuit are disclosed. The above-mentioned frequency-converting circuit is used for converting an RF signal into a first baseband signal according to a poly-phase LO signal. The frequency-converting circuit includes a coupler, a first transduction unit and a first switching unit. The coupler is for receiving and splitting the RF signal and delivering a first RF signal via the first output terminal thereof. The first transduction unit is for amplifying the first RF signal. The first switching unit is for performing switching operations on the output signal of the first transduction unit and producing the first baseband signal.