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:
May. 20, 2014
Filed:
Sep. 16, 2010
Aly Ismail, Costa Mesa, CA (US);
Edward Youssoufian, Irvine, CA (US);
Hassan Elwan, Lake Forest, CA (US);
Frank Carr, Newport Coast, CA (US);
Aly Ismail, Costa Mesa, CA (US);
Edward Youssoufian, Irvine, CA (US);
Hassan Elwan, Lake Forest, CA (US);
Frank Carr, Newport Coast, CA (US);
Newport Media, Inc., Lake Forest, CA (US);
Abstract
A method of filtering and a RF filtering circuit comprising a LO adapted to generate in-phase and quadrature LO signals; a quadrature passive mixer operatively connected to the LO; a filtering impedance operatively connected to the quadrature passive mixer, wherein the voltage at an input node of the quadrature passive mixer comprises the voltage across the filtering impedance up-converted to a frequency of a LO signal received by the quadrature passive mixer. Preferably, the voltage across the filtering impedance comprises a frequency of an input signal of the quadrature passive mixer down-converted by a frequency of the in-phase and quadrature LO signals and filtered by the filtering impedance.