Patents by Inventor Michael James Roper
Michael James Roper 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: 11118912Abstract: Embodiments described herein relate to a magnetic positioning system and method that allows the position of a receiver to be determined in environments containing conducting material such as concrete. A number of transmitters create modulated magnetic fields which are distorted as they propagate through the conducting materials. A finite difference time domain (FDTD) simulation of the environment is used to generate an accurate model of the fields within the environment. A receiver is used to measure the field strength of each transmitter. The receiver position is determined by evaluating the misfit between the received fields and the values in the FDTD model.Type: GrantFiled: December 20, 2017Date of Patent: September 14, 2021Assignee: VITAL ALERT COMMUNICATION INC.Inventors: Michael James Roper, Peter Kwasniok, Maxim Ralchenko
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Publication number: 20190383619Abstract: Embodiments described herein relate to a magnetic positioning system and method that allows the position of a receiver to be determined in environments containing conducting material such as concrete. A number of transmitters create modulated magnetic fields which are distorted as they propagate through the conducting materials. A finite difference time domain (FDTD) simulation of the environment is used to generate an accurate model of the fields within the environment. A receiver is used to measure the field strength of each transmitter. The receiver position is determined by evaluating the misfit between the received fields and the values in the FDTD model.Type: ApplicationFiled: December 20, 2017Publication date: December 19, 2019Inventors: Michael James ROPER, Peter KWASNIOK, Maxim RALCHENKO
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Patent number: 10277335Abstract: There is provided a Through the Earth Emergency Radio (TER) method and apparatus for creating a communications link that can penetrate the earth or other thick, solid barriers. The communication link is used to connect mobile radios or other conventional wireless devices located below ground and on the surface. The through the earth communication link uses a multi-carrier modulation method that minimizes the impact of AC power line noise by locating each carrier between the harmonic frequencies of the AC power line noise.Type: GrantFiled: November 30, 2017Date of Patent: April 30, 2019Assignee: VITAL ALERT COMMUNICATION INC.Inventors: Michael James Roper, Peter Kwasniok, Vladimir Puzakov
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Publication number: 20180091237Abstract: There is provided a Through the Earth Emergency Radio (TER) method and apparatus for creating a communications link that can penetrate the earth or other thick, solid barriers. The communication link is used to connect mobile radios or other conventional wireless devices located below ground and on the surface. The through the earth communication link uses a multi-carrier modulation method that minimizes the impact of AC power line noise by locating each carrier between the harmonic frequencies of the AC power line noise.Type: ApplicationFiled: November 30, 2017Publication date: March 29, 2018Inventors: Michael James ROPER, Peter KWASNIOK, Vladimir PUZAKOV
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Patent number: 9866333Abstract: There is provided a Through the Earth Emergency Radio (TER) method and apparatus for creating a communications link that can penetrate the earth or other thick, solid barriers. The communication link is used to connect mobile radios or other conventional wireless devices located below ground and on the surface. The through the earth communication link uses a multi-carrier modulation method that minimizes the impact of AC power line noise by locating each carrier between the harmonic frequencies of the AC power line noise.Type: GrantFiled: April 24, 2015Date of Patent: January 9, 2018Assignee: VITAL ALERT COMMUNICATION INC.Inventors: Michael James Roper, Peter Kwasniok, Vladimir Puzakov
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Publication number: 20170187471Abstract: There is provided a Through the Earth Emergency Radio (TER) method and apparatus for creating a communications link that can penetrate the earth or other thick, solid barriers. The communication link is used to connect mobile radios or other conventional wireless devices located below ground and on the surface. The through the earth communication link uses a multi-carrier modulation method that minimizes the impact of AC power line noise by locating each carrier between the harmonic frequencies of the AC power line noise.Type: ApplicationFiled: April 24, 2015Publication date: June 29, 2017Inventors: Michael James ROPER, Peter KWASNIOK, Vladimir PUZAKOV
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Patent number: 9450684Abstract: A system, method and apparatus for controlling buried devices by means of a very low frequency (VLF) modulated magnetic field capable of providing through-the-earth (TTE) communications. The system comprises a plurality of VLF transmission loop antennas positioned to cover a desired coverage area and configured to transmit a magneto-inductive signal to a desired operating depth. One or more VLF receivers are configured to receive one or more magneto-inductive signals from the one or more VLF transmission antennas. The VLF receivers are operatively connected to the buried devices, and configured to output a control signal thereto in response to the magneto-inductive signals. The plurality of VLF transmission loop antennas may be square or rectangular antennas positioned in an array to cover the desired coverage area, the VLF transmission loop antennas sized and sufficiently powered to transmit the magneto-inductive signal to the desired operating depth.Type: GrantFiled: February 8, 2013Date of Patent: September 20, 2016Assignee: VITAL ALERT COMMUNICATION INC.Inventors: Michael James Roper, Peter Kwasniok, Vladimir Puzakov
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Patent number: 9231799Abstract: There is provided a Very Low Frequency (VLF) transmit antenna system, method, and apparatus for creating a magnetic field at low frequencies suitable for communications through the earth or other thick, solid barriers. At least two loop antennas are arranged such that a magnetic field of each one of the at least two loop antennas passes through each remaining one of the at least two loop antennas, thereby closely coupling the at least two loop antennas. A full bridge Pulse Width Modulated transmitter is directly connected to each loop antenna for driving the latter. When a loop of a given loop antenna is broken and its magnetic field collapses, the transmitters connected to the remaining loop antennas increase the current in the remaining loops to maintain a constant magnetic field.Type: GrantFiled: November 19, 2012Date of Patent: January 5, 2016Assignee: VITAL ALERT COMMUNICATION INC.Inventors: Michael James Roper, Vladimir Puzakov
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Publication number: 20150333843Abstract: A system, method and apparatus for controlling buried devices by means of a very low frequency (VLF) modulated magnetic field capable of providing through-the-earth (TTE) communications. The system comprises a plurality of VLF transmission loop antennas positioned to cover a desired coverage area and configured to transmit a magneto-inductive signal to a desired operating depth. One or more VLF receivers are configured to receive one or more magneto-inductive signals from the one or more VLF transmission antennas. The VLF receivers are operatively connected to the buried devices, and configured to output a control signal thereto in response to the magneto-inductive signals. The plurality of VLF transmission loop antennas may be square or rectangular antennas positioned in an array to cover the desired coverage area, the VLF transmission loop antennas sized and sufficiently powered to transmit the magneto-inductive signal to the desired operating depth.Type: ApplicationFiled: February 8, 2013Publication date: November 19, 2015Inventors: Michael James Roper, PETER KWASNIOK, VLADIMIR PUZAKOV
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Publication number: 20140314129Abstract: There is provided a Very Low Frequency (VLF) transmit antenna system, method, and apparatus for creating a magnetic field at low frequencies suitable for communications through the earth or other thick, solid barriers. At least two loop antennas are arranged such that a magnetic field of each one of the at least two loop antennas passes through each remaining one of the at least two loop antennas, thereby closely coupling the at least two loop antennas. A full bridge Pulse Width Modulated transmitter is directly connected to each loop antenna for driving the latter. When a loop of a given loop antenna is broken and its magnetic field collapses, the transmitters connected to the remaining loop antennas increase the current in the remaining loops to maintain a constant magnetic field.Type: ApplicationFiled: November 19, 2012Publication date: October 23, 2014Applicant: Vital Alert Communication IncInventors: Michael James Roper, Vladimir Puzakov
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Publication number: 20140095170Abstract: A system, method and apparatus monitor sensors or instruments and provide outputs in the form of voice messages. Data output from the sensors may thus be presented to humans without reference to a visual display. The voice messages may either be assembled from a library of recordings in the form of voice message segments or derived from text and then converted to speech. The voice messages may be output through one or more loudspeakers or via a wireless headset, intercom or portable radio. The user can configure the system for use with different types of sensors and data protocols for a wide variety of different applications and use-cases, using a simple graphical user interface. In accordance with one embodiment the system may be implemented on a personal computer or tablet computer. In an alternative embodiment the processing is performed by an embedded processor and a personal or tablet computer is only connected when it is necessary to change the control program.Type: ApplicationFiled: September 27, 2013Publication date: April 3, 2014Applicant: 2220213 Ontario Inc.Inventors: Michael James Roper, Tavener George Taylor Bremner