Patents by Inventor Otis Robert Harris
Otis Robert Harris has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 10045310Abstract: Example implementations relate to detecting human presence in proximity of a user device. In example implementations, a portion of a first signal may be provided by a first directional coupler that is communicatively coupled to an antenna. A portion of a second signal may be provided by a second directional coupler that is communicatively coupled to a signal source. Transmit power of the signal source may be regulated based on the signal portions provided by the first and second directional couplers.Type: GrantFiled: November 26, 2013Date of Patent: August 7, 2018Assignee: Hewlett-Packard Development Company, L.P.Inventor: Otis Robert Harris, III
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Publication number: 20160295524Abstract: Example implementations relate to detecting human presence in proximity of a user device. In example implementations, a portion of a first signal may be provided by a first directional coupler that is communicatively coupled to an antenna. A portion of a second signal may be provided by a second directional coupler that is communicatively coupled to a signal source. Transmit power of the signal source may be regulated based on the signal portions provided by the first and second directional couplers.Type: ApplicationFiled: November 26, 2013Publication date: October 6, 2016Inventor: OTIS ROBERT HARRIS, III
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Patent number: 9356678Abstract: 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.Type: GrantFiled: January 2, 2012Date of Patent: May 31, 2016Assignee: KONINKLIJKE PHILIPS N.V.Inventor: Otis Robert Harris, III
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Patent number: 9331772Abstract: An RF shielded room (14) which houses a magnetic resonance scanner (12) also houses a patient monitor (20) which includes a plurality of sensors (18) which collect physiological data about a patient undergoing a magnetic resonance examination. The monitor includes a transmitter (46) which transmits the physiological data on at least two frequency channels of a broadband frequency spectrum. A communication unit (26) located outside the RF shielded room includes first and second receivers (54, 58) which receive the physiological data from the monitor on the first and second frequency channels, respectively. A processor (62) combines physiological data received by the first and second receivers to. A display (32) displays the combined physiological data. A switch (56) switches antenna connections of the receivers (54, 58) responsive to detection of multipath fade.Type: GrantFiled: October 14, 2010Date of Patent: May 3, 2016Assignee: KONINKLIJKE PHILIPS N.V.Inventors: Otis Robert Harris, III, Robert Harwell
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Patent number: 9331886Abstract: A magnetic field modem (26) includes an electro-magnetic radiation shielded (90) transmitter section (34) and a receiver section (36). The electro-magnetic radiation shielded (90) transmitter section (34) modulates data and transmits the data via a magnetic field through a radio frequency shield (20). The receiver section (34) receives the magnetic field through the radio frequency shield (20) and demodulates the data. The transmitter section includes an oscillator (40), a modulator (50), an amplifier (70), a magnetic transducer (80), and a non-ferrous magnetic shield (90). The oscillator (40) generates a carrier signal. The modulator (50) connects to the oscillator (40) and modulates the carrier signal with the data. The amplifier (70) connects to the modulator (50) and amplifies the modulated carrier signal. The magnetic transducer (80) connects to the amplifier (70) and converts the modulated carrier signal into a modulated magnetic signal.Type: GrantFiled: October 19, 2012Date of Patent: May 3, 2016Assignee: KONINKLIJKE PHILIPS N.V.Inventors: Robert Harwell, Otis Robert Harris
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Publication number: 20140254646Abstract: A magnetic field modem (26) includes an electro-magnetic radiation shielded (90) transmitter section (34) and a receiver section (36). The electro-magnetic radiation shielded (90) transmitter section (34) modulates data and transmits the data via a magnetic field through a radio frequency shield (20). The receiver section (34) receives the magnetic field through the radio frequency shield (20) and demodulates the data. The transmitter section includes an oscillator (40), a modulator (50), an amplifier (70), a magnetic transducer (80), and a non-ferrous magnetic shield (90). The oscillator (40) generates a carrier signal. The modulator (50) connects to the oscillator (40) and modulates the carrier signal with the data. The amplifier (70) connects to the modulator (50) and amplifies the modulated carrier signal. The magnetic transducer (80) connects to the amplifier (70) and converts the modulated carrier signal into a modulated magnetic signal.Type: ApplicationFiled: October 19, 2012Publication date: September 11, 2014Inventors: Robert Harwell, Otis Robert Harris
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Publication number: 20130295867Abstract: 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.Type: ApplicationFiled: January 2, 2012Publication date: November 7, 2013Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.Inventor: Otis Robert Harris, III
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Publication number: 20120215092Abstract: An RF shielded room (14) which houses a magnetic resonance scanner (12) also houses a patient monitor (20) which includes a plurality of sensors (18) which collect physiological data about a patient undergoing a magnetic resonance examination. The monitor includes a transmitter (46) which transmits the physiological data on at least two frequency channels of a broadband frequency spectrum. A communication unit (26) located outside the RF shielded room includes first and second receivers (54, 58) which receive the physiological data from the monitor on the first and second frequency channels, respectively. A processor (62) combines physiological data received by the first and second receivers to. A display (32) displays the combined physiological data. A switch (56) switches antenna connections of the receivers (54, 58) responsive to detection of multipath fade.Type: ApplicationFiled: October 14, 2010Publication date: August 23, 2012Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.Inventors: Otis Robert Harris, III, Robert Harwell