Patents by Inventor Murad Qahwash
Murad Qahwash 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: 10200902Abstract: An apparatus for determining characteristics of a radio within a communications network includes a radio, RF signal sensor, and analyzer. The radio transmits RF signals and has transmission operating parameters with respective predetermined values defined by a regulatory agency, a manufacturer, a user and a provider, the values having respective thresholds, a unique identifier; and an over-the-air operating mode in which the signals comprise the identifier. The sensor receives the signals from the radio having characteristics correlating with the transmission operating parameters.Type: GrantFiled: March 26, 2018Date of Patent: February 5, 2019Assignee: Locus Location Systems, LLCInventors: Joseph Rey, John McCarthy, Murad Qahwash
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Publication number: 20180227780Abstract: An apparatus for determining characteristics of a radio within a communications network includes a radio, RF signal sensor, and analyzer. The radio transmits RF signals and has transmission operating parameters with respective predetermined values defined by a regulatory agency, a manufacturer, a user and a provider, the values having respective thresholds, a unique identifier; and an over-the-air operating mode in which the signals comprise the identifier. The sensor receives the signals from the radio having characteristics correlating with the transmission operating parameters.Type: ApplicationFiled: March 26, 2018Publication date: August 9, 2018Applicant: Locus Location Systems, LLCInventors: Joseph Rey, John McCarthy, Murad Qahwash
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Patent number: 9961578Abstract: An apparatus for identifying failed or suspect RF transmitting devices while the devices are in normal operation transmitting over-the-air RF signals, each of the RF transmitting devices including an identifier and being mobile, portable or stationary, includes an RF signal sensor receiving the RF signals and responsive thereto, an analyzer, and a GUI. The analyzer measuring signal parameters and determines operating characteristics of a device therefrom, determining the identifier, if each RF signal conforms to packet structure specifications, and bit-field information of each RF signal to discern therefrom a transmission type, measures RF frequency offset, correlates the bit-field information with the RF frequency offset utilizing the identifier; and repeats the last three steps to determine a range of RF frequency offset deviations over time. The GUI displays the range in a form used to identify an RF frequency offset range of the RF transmitting device.Type: GrantFiled: May 4, 2017Date of Patent: May 1, 2018Assignee: Locus Location Systems, LLCInventors: Joseph Rey, John McCarthy, Murad Qahwash
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Publication number: 20170238202Abstract: An apparatus for identifying failed or suspect RF transmitting devices while the devices are in normal operation transmitting over-the-air RF signals, each of the RF transmitting devices including an identifier and being mobile, portable or stationary, includes an RF signal sensor receiving the RF signals and responsive thereto, an analyzer, and a GUI. The analyzer measuring signal parameters and determines operating characteristics of a device therefrom, determining the identifier, if each RF signal conforms to packet structure specifications, and bit-field information of each RF signal to discern therefrom a transmission type, measures RF frequency offset, correlates the bit-field information with the RF frequency offset utilizing the identifier; and repeats the last three steps to determine a range of RF frequency offset deviations over time. The GUI displays the range in a form used to identify an RF frequency offset range of the RF transmitting device.Type: ApplicationFiled: May 4, 2017Publication date: August 17, 2017Applicant: Locus Location Systems, LLCInventors: Joseph Rey, John McCarthy, Murad Qahwash
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Patent number: 9681321Abstract: An apparatus for identifying failed or suspect RF transmitting devices while the devices are in normal operation transmitting over-the-air RF signals, each of the RF transmitting devices including an identifier and being mobile, portable or stationary, includes an RF signal sensor receiving the RF signals and responsive thereto, an analyzer, and a GUI. The analyzer measuring signal parameters and determines operating characteristics of a device therefrom, determining the identifier, if each RF signal conforms to packet structure specifications, and bit-field information of each RF signal to discern therefrom a transmission type, measures RF frequency offset, correlates the bit-field information with the RF frequency offset utilizing the identifier; and repeats the last three steps to determine a range of RF frequency offset deviations over time. The GUI displays the range in a form used to identify an RF frequency offset range of the RF transmitting device.Type: GrantFiled: November 18, 2015Date of Patent: June 13, 2017Assignee: Locus Location Systems, LLCInventors: Joseph Rey, John McCarthy, Murad Qahwash
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Publication number: 20160073280Abstract: An apparatus for identifying failed or suspect RF transmitting devices while the devices are in normal operation transmitting over-the-air RF signals, each of the RF transmitting devices including an identifier and being mobile, portable or stationary, includes an RF signal sensor receiving the RF signals and responsive thereto, an analyzer, and a GUI. The analyzer measuring signal parameters and determines operating characteristics of a device therefrom, determining the identifier, if each RF signal conforms to packet structure specifications, and bit-field information of each RF signal to discern therefrom a transmission type, measures RF frequency offset, correlates the bit-field information with the RF frequency offset utilizing the identifier; and repeats the last three steps to determine a range of RF frequency offset deviations over time. The GUI displays the range in a form used to identify an RF frequency offset range of the RF transmitting device.Type: ApplicationFiled: November 18, 2015Publication date: March 10, 2016Inventors: Joseph Rey, John McCarthy, Murad Qahwash
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Patent number: 9282482Abstract: An apparatus for identifying failed or suspect RF transmitting devices while the devices are in normal operation transmitting over-the-air RF signals. The apparatus comprises an RF signal sensor receiving the RF signals from at least one of the devices that are mobile or portable. The sensor is responsive to the received RF signals. An analyzer determines RF frequency characteristics of the received RF signals from the at least one transmitting device, determines the respective identifier of the at least one transmitting device from the received RF signals, and uses the identifier from the received RF signals to correlate the RF frequency characteristics of the particular one of the transmitting devices. A graphical user interface displays at least one RF frequency characteristic in a form that can be used to identify transmitting devices that have failed and transmitting devices that are suspect.Type: GrantFiled: December 17, 2014Date of Patent: March 8, 2016Assignee: Locus Location Systems, LLCInventors: Joseph Rey, John McCarthy, Murad Qahwash
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Publication number: 20150105030Abstract: An apparatus for identifying failed or suspect RF transmitting devices while the devices are in normal operation transmitting over-the-air RF signals. The apparatus comprises an RF signal sensor receiving the RF signals from at least one of the devices that are mobile or portable. The sensor is responsive to the received RF signals. An analyzer determines RF frequency characteristics of the received RF signals from the at least one transmitting device, determines the respective identifier of the at least one transmitting device from the received RF signals, and uses the identifier from the received RF signals to correlate the RF frequency characteristics of the particular one of the transmitting devices. A graphical user interface displays at least one RF frequency characteristic in a form that can be used to identify transmitting devices that have failed and transmitting devices that are suspect.Type: ApplicationFiled: December 17, 2014Publication date: April 16, 2015Inventors: Danny Caudill, Michael Keefe, Charna Parkey, Robert Mitchell, Murad Qahwash, John McCarthy
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Patent number: 8948022Abstract: An apparatus for determining operating characteristics of radio-frequency (RF) transmitting devices while the devices are in normal operation transmitting over-the-air RF signals. The apparatus comprises at least one signal sensor for receiving the RF signals, each sensor responsive to the RF signals received at a plurality of antennas or received at a directional antenna, an analyzer for determining signal parameters of received RF signals and for determining operating characteristics of the transmitting devices from the signal parameters, wherein each RF signal includes an identifier of the transmitting device, the apparatus using the identifier to link operating characteristics determined from the RF signals to the transmitting device, and a graphical user interface for displaying the operating characteristics for each transmitting device.Type: GrantFiled: September 11, 2013Date of Patent: February 3, 2015Assignee: Locus Location Systems, LLCInventors: Danny Caudill, Michael Keefe, Charna Parkey, Robert Mitchell, Murad Qahwash, John McCarthy
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Publication number: 20140092949Abstract: An apparatus for determining a health of radio-frequency transmitters each transmitting a transmitted signal during normal operation. The apparatus comprises a receiver for receiving received signals, each received signal responsive to a transmitted signal, a first element for determining signal parameters of each received signal, the signal parameters responsive to an operating condition of a transmitter, each transmitted signal and each associated received signal including an identifier of the transmitter that transmitted the transmitted signal, the apparatus using the identifier to link determined signal parameters with the transmitter that transmitted the transmitted signal and a second element for determining a health of the transmitter that transmitted the transmitted signal, the health responsive to a relationship between one or more signal parameters and a selected value or a range of selected values for each signal parameter.Type: ApplicationFiled: October 31, 2013Publication date: April 3, 2014Applicant: LOCUS LOCATION SYSTEMS, LLCInventors: Danny Caudill, Michael Keefe, Charna Parkey, Robert Mitchell, Murad Qahwash, John McCarthy
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Publication number: 20140011495Abstract: An apparatus for determining operating characteristics of radio-frequency (RF) transmitting devices while the devices are in normal operation transmitting over-the-air RF signals. The apparatus comprises at least one signal sensor for receiving the RF signals, each sensor responsive to the RF signals received at a plurality of antennas or received at a directional antenna, an analyzer for determining signal parameters of received RF signals and for determining operating characteristics of the transmitting devices from the signal parameters, wherein each RF signal includes an identifier of the transmitting device, the apparatus using the identifier to link operating characteristics determined from the RF signals to the transmitting device, and a graphical user interface for displaying the operating characteristics for each transmitting device.Type: ApplicationFiled: September 11, 2013Publication date: January 9, 2014Applicant: LOCUS LOCATION SYSTEMS, LLCInventors: Danny Caudill, Michael Keefe, Charna Parkey, Robert Mitchell, Murad Qahwash, John McCarthy
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Patent number: 8600371Abstract: An apparatus for determining a health of radio-frequency transmitters each transmitting a transmitted signal during normal operation. The apparatus comprises a receiver for receiving received signals, each received signal responsive to a transmitted signal, a first element for determining signal parameters of each received signal, the signal parameters responsive to an operating condition of a transmitter, each transmitted signal and each associated received signal including an identifier of the transmitter that transmitted the transmitted signal, the apparatus using the identifier to link determined signal parameters with the transmitter that transmitted the transmitted signal and a second element for determining a health of the transmitter that transmitted the transmitted signal, the health responsive to a relationship between one or more signal parameters and a selected value or a range of selected values for each signal parameter.Type: GrantFiled: May 12, 2011Date of Patent: December 3, 2013Assignee: Locus Location Systems LLCInventors: Danny Caudill, Michael Keefe, Charna Parkey, Robert Mitchell, Murad Qahwash, John McCarthy
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Patent number: 8565096Abstract: An apparatus for determining operating characteristics of radio-frequency (RF) transmitting devices while the devices are in normal operation transmitting over-the-air RF signals. The apparatus comprises at least one signal sensor for receiving the RF signals, each sensor responsive to the RF signals received at a plurality of antennas or received at a directional antenna, an analyzer for determining signal parameters of received RF signals and for determining operating characteristics of the transmitting devices from the signal parameters, wherein each RF signal includes an identifier of the transmitting device, the apparatus using the identifier to link operating characteristics determined from the RF signals to the transmitting device, and a graphical user interface for displaying the operating characteristics for each transmitting device.Type: GrantFiled: September 14, 2010Date of Patent: October 22, 2013Assignee: Locus Location Systems, LLCInventors: Danny Caudill, Michael Keefe, Charna Parkey, Robert Mitchell, Murad Qahwash
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Patent number: 8452306Abstract: A system for locating an object, comprising one or more of a first GPS receiver and a first long and short range transceiver onboard a subject object at a first location; one or more of a second GPS receiver and a second long and short range transceiver onboard a secondary object at a second location; a control center for transmitting a location query message requesting first location information; the first long range transceiver transmitting the first location information to the control center, or the first short range transceiver transmitting the first location information and a subject object identification to the second short range transceiver, that transmits the first location information and the subject object identification to the control center, or the second long range transceiver transmitting the second location information to the control center when the subject object and the secondary object are within a predetermined distance.Type: GrantFiled: January 25, 2011Date of Patent: May 28, 2013Assignee: MU Research & Development Grove, LLCInventors: Murad Qahwash, Madjid A. Belkerdid
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Publication number: 20110319029Abstract: An apparatus for determining a health of radio-frequency transmitters each transmitting a transmitted signal during normal operation. The apparatus comprises a receiver for receiving received signals, each received signal responsive to a transmitted signal, a first element for determining signal parameters of each received signal, the signal parameters responsive to an operating condition of a transmitter, each transmitted signal and each associated received signal including an identifier of the transmitter that transmitted the transmitted signal, the apparatus using the identifier to link determined signal parameters with the transmitter that transmitted the transmitted signal and a second element for determining a health of the transmitter that transmitted the transmitted signal, the health responsive to a relationship between one or more signal parameters and a selected value or a range of selected values for each signal parameter.Type: ApplicationFiled: May 12, 2011Publication date: December 29, 2011Inventors: Danny Caudill, Michael Keefe, Charna Parkey, Robert Mitchell, Murad Qahwash, John McCarthy
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Patent number: 8019360Abstract: A method for determining a location of a wireless transmitting device transmitting a digitally modulated transmitted radio frequency signal. The method comprises, at spaced-apart receivers: generating a received radio frequency signal and including time tags therein responsive to the transmitted radio frequency signal, detecting a destination message signal responsive to the received radio frequency signal, comparing the destination message signal and the received radio frequency signal and determining a time of arrival of the destination message signal responsive to the step of comparing and responsive to the time tags. The method further comprises determining a pairwise time difference of arrival of the received radio frequency signal for two pairs of receivers and determining the location of the device responsive to the pairwise time difference of arrival.Type: GrantFiled: April 23, 2007Date of Patent: September 13, 2011Assignee: Locus Location Systems, LLCInventor: Murad Qahwash
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Publication number: 20110207476Abstract: A system for locating an object, comprising one or more of a first GPS receiver and a first long and short range transceiver onboard a subject object at a first location; one or more of a second GPS receiver and a second long and short range transceiver onboard a secondary object at a second location; a control center for transmitting a location query message requesting first location information; the first long range transceiver transmitting the first location information to the control center, or the first short range transceiver transmitting the first location information and a subject object identification to the second short range transceiver, that transmits the first location information and the subject object identification to the control center, or the second long range transceiver transmitting the second location information to the control center when the subject object and the secondary object are within a predetermined distance.Type: ApplicationFiled: January 25, 2011Publication date: August 25, 2011Inventors: Murad Qahwash, Madjid A. Belkerdid
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Publication number: 20110090807Abstract: An apparatus for determining operating characteristics of radio-frequency (RF) transmitting devices while the devices are in normal operation transmitting over-the-air RF signals. The apparatus comprises at least one signal sensor for receiving the RF signals, each sensor responsive to the RF signals received at a plurality of antennas or received at a directional antenna, an analyzer for determining signal parameters of received RF signals and for determining operating characteristics of the transmitting devices from the signal parameters, wherein each RF signal includes an identifier of the transmitting device, the apparatus using the identifier to link operating characteristics determined from the RF signals to the transmitting device, and a graphical user interface for displaying the operating characteristics for each transmitting device.Type: ApplicationFiled: September 14, 2010Publication date: April 21, 2011Inventors: Danny Caudill, Michael Keefe, Charna Parkey, Robert Mitchell, Murad Qahwash
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Publication number: 20100259448Abstract: A method for testing each one of a plurality of receiving sites operative in a time difference of arrival geo-location system. The method comprises determining a theoretical time of arrival of a test message at each receiving site assuming the test message was transmitted from a test message transmitting antenna at a known location; determining a measured time of arrival of the test message at each receiving site, the test message transmitted from the test message transmitting antenna; determining a true time of arrival of the test message at each receiving site, the true time of arrival comprising the measured time of arrival less a start time of the test message; determining a difference between the theoretical and the true times of arrival for each receiving site, wherein the difference for each receiving site is indicative of a health of the receiving site.Type: ApplicationFiled: April 9, 2010Publication date: October 14, 2010Applicant: LOCUS LOCATION SYSTEMS LLCInventors: MURAD QAHWASH, JOHN McCARTHY, DANNY CAUDILL, MICHAEL KEEFE
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Publication number: 20090075674Abstract: A method for determining a location of a wireless transmitting device transmitting a digitally modulated transmitted radio frequency signal. The method comprises, at spaced-apart receivers: generating a received radio frequency signal and including time tags therein responsive to the transmitted radio frequency signal, detecting a destination message signal responsive to the received radio frequency signal, comparing the destination message signal and the received radio frequency signal and determining a time of arrival of the destination message signal responsive to the step of comparing and responsive to the time tags. The method further comprises determining a pairwise time difference of arrival of the received radio frequency signal for two pairs of receivers and determining the location of the device responsive to the pairwise time difference of arrival.Type: ApplicationFiled: April 23, 2007Publication date: March 19, 2009Inventor: Murad Qahwash