Patents by Inventor Stephen Dorn Freeman
Stephen Dorn Freeman 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: 11908811Abstract: A system for inspecting or screening electrically powered device includes a signal generator inputting a preselected signal into the electrically powered device. There is also an antenna array positioned at a pre-determined distance above the electrically powered device. Apparatus collects RF energy emitted by the electrically powered device in response to input of said preselected signal. The signature of the collected RF energy is compared with an RF energy signature of a genuine part. The comparison determines one of a genuine or counterfeit condition of the electrically powered device.Type: GrantFiled: April 27, 2022Date of Patent: February 20, 2024Assignee: Nokomis, IncInventors: Walter J. Keller, III, Stephen Dorn Freeman, Jason Galyardt
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Publication number: 20220352100Abstract: A system for inspecting or screening electrically powered device includes a signal generator inputting a preselected signal into the electrically powered device. There is also an antenna array positioned at a pre-determined distance above the electrically powered device. Apparatus collects RF energy emitted by the electrically powered device in response to input of said preselected signal. The signature of the collected RF energy is compared with an RF energy signature of a genuine part. The comparison determines one of a genuine or counterfeit condition of the electrically powered device.Type: ApplicationFiled: April 27, 2022Publication date: November 3, 2022Applicant: NOKOMIS, INC.Inventors: WALTER J. KELLER, III, STEPHEN DORN FREEMAN, JASON GALYARDT
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Patent number: 11450625Abstract: A system for inspecting or screening electrically powered device includes a signal generator inputting a preselected signal into the electrically powered device. There is also an antenna array positioned at a pre-determined distance above the electrically powered device. Apparatus collects RF energy emitted by the electrically powered device in response to input of said preselected signal. The signature of the collected RF energy is compared with an RF energy signature of a genuine part. The comparison determines one of a genuine or counterfeit condition of the electrically powered device.Type: GrantFiled: October 31, 2019Date of Patent: September 20, 2022Assignee: NOKOMIS, INC.Inventors: Walter J. Keller, III, Stephen Dorn Freeman, Jason Galyardt
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Publication number: 20200144204Abstract: A system for inspecting or screening electrically powered device includes a signal generator inputting a preselected signal into the electrically powered device. There is also an antenna array positioned at a pre-determined distance above the electrically powered device. Apparatus collects RF energy emitted by the electrically powered device in response to input of said preselected signal. The signature of the collected RF energy is compared with an RF energy signature of a genuine part. The comparison determines one of a genuine or counterfeit condition of the electrically powered device.Type: ApplicationFiled: October 31, 2019Publication date: May 7, 2020Applicant: NOKOMIS, INC.Inventors: WALTER J. KELLER, III, STEPHEN DORN FREEMAN, JASON GALYARDT
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Patent number: 10475754Abstract: A system for inspecting or screening electrically powered device includes a signal generator inputting a preselected signal into the electrically powered device. There is also an antenna array positioned at a pre-determined distance above the electrically powered device. Apparatus collects RF energy emitted by the electrically powered device in response to input of said preselected signal. The signature of the collected RF energy is compared with an RF energy signature of a genuine part. The comparison determines one of a genuine or a counterfeit condition of the electrically powered device.Type: GrantFiled: March 2, 2012Date of Patent: November 12, 2019Assignee: NOKOMIS, INC.Inventors: Walter J. Keller, III, Stephen Dorn Freeman, Jason Galyardt
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Patent number: 10416286Abstract: The present invention is a signal processing method to significantly improve the detection and identification of source emissions. More particularly, the present invention offers a processing method to reduce the false alarm rate of systems which remotely detect and identify the presence of electronic devices through an analysis of a received spectrum the devices' unintended emissions. The invention identifies candidate emission elements and determines their validity based on a frequency and phase association with other emissions present in the received spectrum. The invention compares the measured phase and frequency data of the emissions with a software solution of the theoretically or empirically derived closed-form expression which governs the phase and frequency distribution of the emissions within the source. Verification of this relationship serves to dramatically increase the confidence of the detection.Type: GrantFiled: August 15, 2013Date of Patent: September 17, 2019Assignee: NOKOMIS, INCInventors: Stephen Dorn Freeman, Walter John Keller, III
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Patent number: 9285463Abstract: A method for assessing results from application of energy onto one or more electric or electronic devices includes the steps of acquiring an electromagnetic emission from the one or more devices, directing energy onto the one or more devices, acquiring another electromagnetic emission from the one or more devices having the energy directed thereonto and determining, in accordance with at least one logic algorithm state and/or change in state of the one or more devices. There is also a microprocessor based apparatus that is employed for acquiring the electromagnetic emissions and executing the at least one logic algorithm. Energy is directed by either a weapon or electromagnetic phenomena.Type: GrantFiled: December 12, 2012Date of Patent: March 15, 2016Assignee: NOKOMIS, INC.Inventors: Stephen Dorn Freeman, Walter John Keller
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Patent number: 8537050Abstract: The present invention is a signal processing method to significantly improve the detection and identification of source emissions. More particularly, the present invention offers a processing method to reduce the false alarm rate of systems which remotely detect and identify the presence of electronic devices through an analysis of a received spectrum the devices' unintended emissions. The invention identifies candidate emission elements and determines their validity based on a frequency and phase association with other emissions present in the received spectrum. The invention compares the measured phase and frequency data of the emissions with a software solution of the theoretically or empirically derived closed-form expression which governs the phase and frequency distribution of the emissions within the source. Verification of this relationship serves to dramatically increase the confidence of the detection.Type: GrantFiled: October 25, 2010Date of Patent: September 17, 2013Assignee: Nokomis, Inc.Inventors: Stephen Dorn Freeman, Walter John Keller, III
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Publication number: 20120226463Abstract: A system for inspecting or screening electrically powered device includes a signal generator inputting a preselected signal into the electrically powered device. There is also an antenna array positioned at a pre-determined distance above the electrically powered device. Apparatus collects RF energy emitted by the electrically powered device in response to input of said preselected signal. The signature of the collected RF energy is compared with an RF energy signature of a genuine part. The comparison determines one of a genuine or a counterfeit condition of the electrically powered device.Type: ApplicationFiled: March 2, 2012Publication date: September 6, 2012Applicant: NOKOMIS, INC.Inventors: WALTER J. KELLER, III, Stephen Dorn Freeman, Jason Galyardt
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Publication number: 20110095934Abstract: The present invention is a signal processing method to significantly improve the detection and identification of source emissions. More particularly, the present invention offers a processing method to reduce the false alarm rate of systems which remotely detect and identify the presence of electronic devices through an analysis of a received spectrum the devices' unintended emissions. The invention identifies candidate emission elements and determines their validity based on a frequency and phase association with other emissions present in the received spectrum. The invention compares the measured phase and frequency data of the emissions with a software solution of the theoretically or empirically derived closed-form expression which governs the phase and frequency distribution of the emissions within the source. Verification of this relationship serves to dramatically increase the confidence of the detection.Type: ApplicationFiled: October 25, 2010Publication date: April 28, 2011Applicant: NOKOMIS, INCInventors: Stephen Dorn Freeman, Walter John Keller,, III