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. 26, 2009
Filed:
May. 25, 2004
Andrew W. Dornbusch, Austin, TX (US);
Andrew W. Dornbusch, Austin, TX (US);
Silicon Laboratories, Inc., Austin, TX (US);
Abstract
A mixer () includes an input amplifier () and a barrel shifter (). The input amplifier () has an input for receiving an input signal, and first through fourth output terminals respectively providing first through fourth current signals. The barrel shifter () has first through fourth input terminals for respectively receiving the first through fourth current signals, first through fourth control terminals for respectively receiving first through fourth clock signals, and first through fourth output terminals for respectively providing positive and negative in-phase output signals and positive and negative quadrature output signals.