United States Patent 7,937,061
Sugar , et al. May 3, 2011
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Signal interfacing techniques to simplify integrated circuit radio designs
Abstract
A signal interfacing technique for connecting signals between a signal processing device and a MIMO radio integrated circuit (IC) involving multiplexing two or more signals on a connection pin between the radio IC and a signal processing device. According to one technique, transmit and receive signals are multiplexed such that during a transmit mode a transmit signal is coupled on the connection pin from the signal processing device to the radio IC, and during a receive mode a receive signal is coupled from the radio IC on the connection pin to the signal processing device. According to another technique, in-phase (I) and quadrature (Q) signals are multiplexed on a connection pin during both transmit and receive modes.
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Inventors: Sugar; Gary L. (Rockville, MD), Masucci; Robert M. (Potomac, MD), Toner; Michael F. (Ottawa, CA)
Assignee: IPR Licensing, Inc. (Wilmington, DE)
Appl. No.: 11/430,063
Filed: May 8, 2006
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Related U.S. Patent Documents
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Application Number Filing Date Patent Number Issue Date
10707447 Dec., 2003 7058383
60474494 May., 2003
60481139 Jul., 2003
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Current U.S. Class: 455/333 ; 375/219; 455/84
Current International Class: H04B 1/28 (20060101); H04B 1/40 (20060101)
Field of Search: 455/73,78,84,333,550.1 375/219,298,320,322
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