Koninklijke Philips Corporation N.v.

Otis Robert Harris, Iii

Robert Andrew Harwell

A diverse radio receiver system includes a radio frequency (RF) circuit board, a plurality of RF receivers disposed on the RF circuit board, and switching circuitry disposed on the RF circuit board. The switching circuitry includes transmission lines and switches connecting each RF receiver with (1) a selected one antenna of a plurality of antennas and (2) an impedance matching circuit providing impedance matching of the selected one antenna with the RF receiver. The switching circuitry is configured to implement a plurality of selectable switch configurations, each switch configuration connecting each RF receiver of the plurality of RF receivers with a selected antenna of the plurality of antennas. The impedance matching circuits of the switching circuitry may comprise impedance matching transmission line stubs. The diverse radio receiver system may be configured to receive an RF signal transmitted by a wireless magnetic resonance (MR) receive coil.

Diverse radio receiver system

A magnetic field modem () includes an electro-magnetic radiation shielded () transmitter section () and a receiver section (). The electro-magnetic radiation shielded () transmitter section () modulates data and transmits the data via a magnetic field through a radio frequency shield (). The receiver section () receives the magnetic field through the radio frequency shield () and demodulates the data. The transmitter section includes an oscillator (), a modulator (), an amplifier (), a magnetic transducer (), and a non-ferrous magnetic shield (). The oscillator () generates a carrier signal. The modulator () connects to the oscillator () and modulates the carrier signal with the data. The amplifier () connects to the modulator () and amplifies the modulated carrier signal. The magnetic transducer () connects to the amplifier () and converts the modulated carrier signal into a modulated magnetic signal. The non-ferrous magnetic shield () shields the magnetic transducer () and blocks emitted electro-magnetic radiation.

Magnetic field data modem

An RF shielded room () which houses a magnetic resonance scanner () also houses a patient monitor () which includes a plurality of sensors () which collect physiological data about a patient undergoing a magnetic resonance examination. The monitor includes a transmitter () which transmits the physiological data on at least two frequency channels of a broadband frequency spectrum. A communication unit () located outside the RF shielded room includes first and second receivers () which receive the physiological data from the monitor on the first and second frequency channels, respectively. A processor () combines physiological data received by the first and second receivers to. A display () displays the combined physiological data. A switch () switches antenna connections of the receivers () responsive to detection of multipath fade.

Growing community of inventors

Orlando, FL, United States of America

Otis Robert Harris, Iii