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:
Apr. 23, 2013
Filed:
Oct. 04, 2010
Saravana Kumar Ganeshan, Bangalore, IN;
Bijoy Bhukania, Bangalore, IN;
Anand Kannan, Bangalore, IN;
Texas Instruments Incorporated, Dallas, TX (US);
Abstract
A wireless receiver for multiple frequency bands reception includes a single receive radio frequency (RF) circuit () having an RF bandpass substantially confined to encompass at least two non-overlapped such frequency bands at RF, a single in-phase and quadrature (approximately I, Q) pair of intermediate frequency (IF) sections (I,Q) having an IF passband, and a mixer circuit () including an in-phase and quadrature (I,Q) pair of mixers (I,Q) fed by said RF circuit () and having a local oscillator () with in-phase and quadrature outputs coupled to said mixers (I,Q) respectively, said mixer circuit () operable to inject and substantially overlap the at least two non-overlapped frequency bands with each other into the IQ IF sections (I,Q) in the IF passband, the IF passband substantially confined to a bandwidth encompassing the thereby-overlapped frequency bands.