Patents by Inventor Douglas O. Carlson
Douglas O. Carlson 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: 10082572Abstract: An apparatus includes an extendable wand, and a sensor head coupled to the wand. The sensor head includes a continuous wave metal detector (CWMD) and a radar. When the wand is collapsed, the wand and the sensor head collapse to fill a volume that is smaller than a volume filled by the sensor head and the wand when the wand is extended. Frequency-domain data from a sensor configured to sense a region is accessed, the frequency-domain data is transformed to generate a time-domain representation of the region, a first model is determined based on the accessed frequency-domain data, a second model is determined based on the generated time-domain representation, the second model being associated with a particular region within the sensed region, and a background model that represents a background of the region is determined based on the first model and the second model.Type: GrantFiled: August 31, 2017Date of Patent: September 25, 2018Assignee: L-3 Communications Security and Detection Systems, Inc.Inventors: Herbert Duvoisin, III, Juan Antonio Torres-Rosario, Christopher Gary Sentelle, Douglas O. Carlson, Glen A. Holman, Marquette Trishaun
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Patent number: 9983121Abstract: A device and method for tracking a spectral response. The device and method including inputting light to a waveguide medium having a plurality of perturbation sensors disposed in a spaced relationship in the waveguide medium; receiving a plurality of signals reflected from the plurality of perturbation sensors; retrieving from the received signals, data representing a plurality of signal values, each signal value comprising at least a magnitude value and a wavelength value; identifying within the plurality of signal values, at least a first signal value and a second signal value, being in an overlap state; estimating, for at least some of the plurality of perturbation sensors, an expected signal value; associating each expected signal value with a respective signal value from the plurality of signal values; updating each expected signal value with the associated signal value.Type: GrantFiled: April 23, 2015Date of Patent: May 29, 2018Assignee: FAZ TECHNOLOGY LIMITEDInventor: Douglas O. Carlson
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Publication number: 20180003814Abstract: An apparatus includes an extendable wand, and a sensor head coupled to the wand. The sensor head includes a continuous wave metal detector (CWMD) and a radar. When the wand is collapsed, the wand and the sensor head collapse to fill a volume that is smaller than a volume filled by the sensor head and the wand when the wand is extended. Frequency-domain data from a sensor configured to sense a region is accessed, the frequency-domain data is transformed to generate a time-domain representation of the region, a first model is determined based on the accessed frequency-domain data, a second model is determined based on the generated time-domain representation, the second model being associated with a particular region within the sensed region, and a background model that represents a background of the region is determined based on the first model and the second model.Type: ApplicationFiled: August 31, 2017Publication date: January 4, 2018Applicant: L-3 Communications Security and Detection Systems, Inc.Inventors: Herbert Duvoisin, III, Juan Antonio Torres-Rosario, Christopher Gary Sentelle, Douglas O. Carlson, Glen A. Holman, Marquette Trishaun
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Patent number: 9753122Abstract: An apparatus includes an extendable wand, and a sensor head coupled to the wand. The sensor head includes a continuous wave metal detector (CWMD) and a radar. When the wand is collapsed, the wand and the sensor head collapse to fill a volume that is smaller than a volume filled by the sensor head and the wand when the wand is extended. Frequency-domain data from a sensor configured to sense a region is accessed, the frequency-domain data is transformed to generate a time-domain representation of the region, a first model is determined based on the accessed frequency-domain data, a second model is determined based on the generated time-domain representation, the second model being associated with a particular region within the sensed region, and a background model that represents a background of the region is determined based on the first model and the second model.Type: GrantFiled: August 15, 2014Date of Patent: September 5, 2017Assignee: L-3 Communications Security and Detection Systems, Inc.Inventors: Herbert Duvoisin, III, Juan Antonio Torres-Rosario, Christopher Gary Sentelle, Douglas O. Carlson, Glen A. Holman, Marquette Trishaun
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Patent number: 9733353Abstract: An apparatus for detecting objects includes a transceiver configured to generate a radar signal, a radar having a transmit antenna configured to transmit the radar signal, and a receive antenna configured to sense a return signal in response to a transmission of the radar signal. The apparatus also includes a processor configured to detect an object based on the return signal. One or more of the transmit antenna or the receive antenna include offset spiral feed antennas.Type: GrantFiled: January 16, 2015Date of Patent: August 15, 2017Assignee: L-3 Communications Security and Detection Systems, Inc.Inventors: Douglas O. Carlson, Herbert Duvoisin, III, Christopher Gary Sentelle
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Publication number: 20160313235Abstract: A device and method for tracking a spectral response. The device and method including inputting light to a waveguide medium having a plurality of perturbation sensors disposed in a spaced relationship in the waveguide medium; receiving a plurality of signals reflected from the plurality of perturbation sensors; retrieving from the received signals, data representing a plurality of signal values, each signal value comprising at least a magnitude value and a wavelength value; identifying within the plurality of signal values, at least a first signal value and a second signal value, being in an overlap state; estimating, for at least some of the plurality of perturbation sensors, an expected signal value; associating each expected signal value with a respective signal value from the plurality of signal values; updating each expected signal value with the associated signal value.Type: ApplicationFiled: April 23, 2015Publication date: October 27, 2016Applicant: FAZ TECHNOLOGY LIMITEDInventor: Douglas O. Carlson
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Publication number: 20150285899Abstract: An apparatus includes an extendable wand, and a sensor head coupled to the wand. The sensor head includes a continuous wave metal detector (CWMD) and a radar. When the wand is collapsed, the wand and the sensor head collapse to fill a volume that is smaller than a volume filled by the sensor head and the wand when the wand is extended. Frequency-domain data from a sensor configured to sense a region is accessed, the frequency-domain data is transformed to generate a time-domain representation of the region, a first model is determined based on the accessed frequency-domain data, a second model is determined based on the generated time-domain representation, the second model being associated with a particular region within the sensed region, and a background model that represents a background of the region is determined based on the first model and the second model.Type: ApplicationFiled: August 15, 2014Publication date: October 8, 2015Applicant: L-3 Communications Security and Detection Systems, Inc.Inventors: Herbert Duvoisin, III, Juan Antonio Torres-Rosario, Christopher Gary Sentelle, Douglas O. Carlson, Glen A. Holman, Marquette Trishaun
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Patent number: 8842035Abstract: An apparatus includes an extendable wand, and a sensor head coupled to the wand. The sensor head includes a continuous wave metal detector (CWMD) and a radar. When the wand is collapsed, the wand and the sensor head collapse to fill a volume that is smaller than a volume filled by the sensor head and the wand when the wand is extended. Frequency-domain data from a sensor configured to sense a region is accessed, the frequency-domain data is transformed to generate a time-domain representation of the region, a first model is determined based on the accessed frequency-domain data, a second model is determined based on the generated time-domain representation, the second model being associated with a particular region within the sensed region, and a background model that represents a background of the region is determined based on the first model and the second model.Type: GrantFiled: April 6, 2011Date of Patent: September 23, 2014Assignee: L-3 Communications Security and Detection Systems, Inc.Inventors: Herbert Duvoisin, III, Juan Antonio Torres-Rosario, Christopher Gary Sentelle, Douglas O. Carlson, Glen A. Holman, Marquette Trishaun
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Publication number: 20140022106Abstract: An apparatus includes an extendable wand, and a sensor head coupled to the wand. The sensor head includes a continuous wave metal detector (CWMD) and a radar. When the wand is collapsed, the wand and the sensor head collapse to fill a volume that is smaller than a volume filled by the sensor head and the wand when the wand is extended. Frequency-domain data from a sensor configured to sense a region is accessed, the frequency-domain data is transformed to generate a time-domain representation of the region, a first model is determined based on the accessed frequency-domain data, a second model is determined based on the generated time-domain representation, the second model being associated with a particular region within the sensed region, and a background model that represents a background of the region is determined based on the first model and the second model.Type: ApplicationFiled: April 6, 2011Publication date: January 23, 2014Applicant: L-3 COMMUNICATIONS CYTERRA CORPORATIONInventors: Herbert Duvoisin, Juan Antonio Torres-Rosario, Christopher Gary Sentelle, Douglas O. Carlson, Glen A. Holman, Marquette Trishaun
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Publication number: 20130113649Abstract: An apparatus for detecting objects includes a transceiver configured to generate a radar signal, a transmit antenna coupled to the transceiver and configured to emit the radar signal, the radar signal comprising a first circular polarization, and a receive antenna coupled to the transceiver and configured to receive a return signal, the return signal comprising the first circular polarization.Type: ApplicationFiled: November 9, 2012Publication date: May 9, 2013Inventors: Marquette Trishaun, Douglas O. Carlson
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Publication number: 20130113648Abstract: Detection systems for scanning regions are disclosed. The detection systems may be used to detect various objects that are, for example, buried in the ground or obscured by being hidden on the body of a person. The detection systems include a sensor head having a continuous wave metal detector (CWMD) coil, radar antennas, and a transceiver electrically connected to a radar. The radar includes a transmit antenna configured to transmit electromagnetic radiation, and a receive antenna configured to sense electromagnetic radiation.Type: ApplicationFiled: August 24, 2012Publication date: May 9, 2013Applicant: L-3 COMMUNICATIONS CYTERRA CORPORATIONInventors: Herbert Duvoisin, III, Douglas O. Carlson, Glen A. Holman, Kevin L. Johnson, Waymond Scott, Christopher Gary Sentelle, Geoffrey Solomon, Joshua L. Tabony, Juan Antonio Torres-Rosario, Marquette Trishaun
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Publication number: 20130082865Abstract: An apparatus includes a sensor head including a continuous wave metal detector (CWMD), a radar, and a transceiver electrically connected to the radar. The radar includes a transmit antenna configured to transmit electromagnetic radiation, and a receive antenna configured to sense electromagnetic radiation. The transceiver is enclosed in a metal housing.Type: ApplicationFiled: September 30, 2011Publication date: April 4, 2013Applicant: L-3 COMMUNICATIONS CYTERRA CORPORATIONInventors: Herbert Duvoisin, III, Douglas O. Carlson, Glen A. Holman, Kevin L. Johnson, Waymond Scott, Christopher Gary Sentelle, Geoffrey Solomon, Joshua L. Tabony, Juan Antonio Torres-Rosario, Marquette Trishaun
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Patent number: 7671784Abstract: Techniques for detecting contraband are described, as are techniques for generating an image of living tissue. A location of interest relative to a target space is received, and a radar signal is transmitted in the direction of the location of interest. Portions of the radar signal are detected with multiple receiving structures. The detected portions are processed to generate information corresponding to dielectric or loss properties, the properties corresponding to particular positions within the target space. A determination is made as to whether contraband is present in the target space based on the determined properties.Type: GrantFiled: September 10, 2007Date of Patent: March 2, 2010Assignee: L-3 Communications CyTerra CorporationInventors: William Steinway, David H. Fine, Stephen Cole, Ravi K. Konduri, Douglas O. Carlson, Yuriy Pylypenko
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Publication number: 20080169961Abstract: Techniques for detecting contraband are described, as are techniques for generating an image of living tissue. A location of interest relative to a target space is received, and a radar signal is transmitted in the direction of the location of interest. Portions of the radar signal are detected with multiple receiving structures. The detected portions are processed to generate information corresponding to dielectric or loss properties, the properties corresponding to particular positions within the target space. A determination is made as to whether contraband is present in the target space based on the determined properties.Type: ApplicationFiled: September 10, 2007Publication date: July 17, 2008Applicant: L-3 COMMUNICATIONS CYTERRA CORPORATIONInventors: William Steinway, David H. Fine, Stephen Cole, Ravi K. Konduri, Douglas O. Carlson, Yuriy Pylypenko