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.

Date of Patent:
Aug. 21, 2007

Filed:

Feb. 22, 2005
Applicants:

Mi-hyun Son, Seoul, KR;

Seong-soo Lee, Suwon-si, KR;

Kwy-ro Lee, Daejeon, KR;

Min-kyung Lee, Jeongeub-si, KR;

Ick-jin Kwon, Daejeon, KR;

Inventors:

Mi-hyun Son, Seoul, KR;

Seong-soo Lee, Suwon-si, KR;

Kwy-ro Lee, Daejeon, KR;

Min-kyung Lee, Jeongeub-si, KR;

Ick-jin Kwon, Daejeon, KR;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03H 7/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A tunable wideband bandpass filter that can digitally vary the center frequency and bandwidth of a signal to be filtered, and includes a plurality of switched-capacitor banks for varying capacitance and converting the center frequency and bandwidth into a digital signal, and a plurality of inductors provided for inductance to generate the center frequency, the plurality of switched-capacitor banks that may be integrated into a signal chip.


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