Ipr Licensing, Inc.

Freescale Semiconductor,inc.

Cognio, Inc.

Robert M Masucci

Gary L Sugar

David George Rahn

Michael F Toner

Kong S Luen

Philip Huang

David Rahn

As disclosed herein is a multiple-input multiple-output (MIMO) radio transceiver which may include a plurality of antennas operatively coupled to a first integrated circuit (IC). The first IC and the plurality of antennas may receive a first radio signal on a first radio frequency (RF) carrier and a second radio signal on a second RF carrier. The first RF carrier and the second RF carrier may be different carriers. The first radio signal and the second radio signal may have different bandwidths. The first IC may demodulate the first received radio signal to produce a first baseband signal and the second received radio signal to produce a second baseband signal. A second IC may be operatively coupled to the first IC and may recover data from at least the first baseband signal and the second baseband signal.

Multiple-input multiple-output radio transceiver

A MIMO radio transceiver to support processing of multiple signals for simultaneous transmission via corresponding ones of a plurality of antennas and to support receive processing of multiple signals detected by corresponding ones of the plurality of antennas. The radio transceiver provides, on a single semiconductor integrated circuit, a receiver circuit or path for each of a plurality of antennas and a transmit circuit or path for each of the plurality of antennas. Each receiver circuit downconverts the RF signal detected by its associated antenna to a baseband signal. Similarly, each transmit path upconverts a baseband signal to be transmitted by an assigned antenna.

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.

Signal interfacing techniques to simplify integrated circuit radio designs

A signal interfacing technique for connecting signals between a signal processing device and a 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.

Signal interfacing techinques to simplify integrated circuit radio designs

A resonant circuit includes a transmission line in parallel with a varactor diode. The varactor diode has a capacitance that is variable in response to an applied voltage, which allows for real time impedance matching, attenuation control, and/or compensation for tolerances of other components. The resonant circuit is used with a quarter wavelength transmission line to provide impedance transformation and matching between multiple ports. A high frequency switch provides low current consumption, improved impedance matching, relatively low insertion losses, and excellent isolation between ports.

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Potomac, MD, United States of America

Robert M Masucci