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:
Oct. 30, 2007
Filed:
Oct. 31, 2005
Edris Rostami, Los Angeles, CA (US);
Rahim Bagheri, Los Angeles, CA (US);
Masoud Djafari, Marina Del Rey, CA (US);
Abbas Komijani, Los Angeles, CA (US);
Edris Rostami, Los Angeles, CA (US);
Rahim Bagheri, Los Angeles, CA (US);
Masoud Djafari, Marina Del Rey, CA (US);
Abbas Komijani, Los Angeles, CA (US);
WiLinx, Inc., Los Angeles, CA (US);
Abstract
Embodiments of the present invention include circuits and methods for improving the spectral purity of mixer circuits. In one embodiment the present invention includes a mixer circuit including a bias circuit, the bias circuit comprising a first transistor having a gate, a source, and a drain, wherein the drain is coupled to a first input of the mixer circuit, a first sensing circuit coupled to the source of the first transistor, and a first comparison circuit coupled to the first sensing circuit, wherein the first comparison circuit receives a feedback signal from the first sensing circuit and a reference voltage, and in accordance therewith, generates a bias control signal to control the bias at the gate of the first transistor.