Patents by Inventor Lee A. Duncan
Lee A. Duncan 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: 11102426Abstract: An apparatus includes a first light source to produce a first reference light, a first pair of arrayed waveguide gratings (AWGs) to demultiplex a first optical signal and the first reference light, respectively, into multiple first signal beams and multiple first reference beams. A first heterodyne optical detector can mix the multiple first signal beams and the multiple first reference beams to generate first quadrature optical signals. A first pair of photo-detectors can convert the first quadrature optical signals to first in-phase (I) and quadrature (Q) electrical signals. The apparatus is implemented as a photonic integrated circuit (PIC) incorporating the first pair of AWGs, the first heterodyne optical detector and the first pair of photo-detectors.Type: GrantFiled: May 18, 2018Date of Patent: August 24, 2021Assignee: Lockheed Martin CorporationInventors: Richard Lee Kendrick, Alan Lee Duncan
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Patent number: 10753796Abstract: An apparatus includes multiple photonic integrated circuit (PIC) optical spectrometers, and an imaging plane coupled to the PIC optical spectrometers. Each PIC optical spectrometer includes multiple semiconductor chip layers. Each semiconductor chip layer includes multiple arrayed waveguide gratings (AWGs) and a number of on-chip optical detectors.Type: GrantFiled: October 3, 2017Date of Patent: August 25, 2020Assignee: LOCKHEED MARTIN CORPORATIONInventors: Alan Lee Duncan, Richard Lee Kendrick
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Patent number: 10505325Abstract: A rack power distribution unit is provided having one or more outlet modules. Each outlet module includes a body having a plurality of outlet openings. A plurality of outlets are configured to be inserted into, and retained within, the plurality of outlet openings. An outlet board is configured to be coupled to, and distribute power to, the plurality of outlets. A control board configured to be coupled to, and distribute power to, the outlet board, where the outlet board is configured to be coupled to a first outlet of a first type and a second outlet of a second type.Type: GrantFiled: October 13, 2017Date of Patent: December 10, 2019Assignee: SCHNEIDER ELECTRIC IT CORPORATIONInventors: Brian Lee Duncan, Martin Guy Fiacco
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Patent number: 10302409Abstract: An apparatus includes a number of photonic integrated circuit (PIC) imaging detector arrays, and multiple electronic integrated circuits (ICs) coupled to the PIC imaging detector arrays. Each PIC imaging detector array of includes a number of lenslets and a number of waveguides. At least some of the lenslets are coupled to multiple waveguides, and sets of two lenslets are configured to form interferometer channels.Type: GrantFiled: October 20, 2017Date of Patent: May 28, 2019Assignee: Lockheed Martin CorporationInventors: Alan Lee Duncan, Richard Lee Kendrick
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Publication number: 20190115705Abstract: A rack power distribution unit is provided having one or more outlet modules. Each outlet module includes a body having a plurality of outlet openings. A plurality of outlets are configured to be inserted into, and retained within, the plurality of outlet openings. An outlet board is configured to be coupled to, and distribute power to, the plurality of outlets. A control board configured to be coupled to, and distribute power to, the outlet board, where the outlet board is configured to be coupled to a first outlet of a first type and a second outlet of a second type.Type: ApplicationFiled: October 13, 2017Publication date: April 18, 2019Inventors: Brian Lee Duncan, Martin Guy Fiacco
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Patent number: 9806438Abstract: An electronic device includes a chassis, a first outlet provided in the chassis, and a power source coupled to the first outlet. The first outlet has a first ground terminal. The device further includes a ground bracket configured to connect first ground terminal of the first outlet to the chassis to ground the first outlet. The electronic device further may include a second outlet provided in the chassis and spaced from the first outlet. The second outlet is coupled to the power source, and has a second ground terminal. The ground bracket is configured to connect the first ground terminal of the first outlet to the second ground terminal of the second outlet and to the chassis. A method of grounding outlets of the electronic device is further disclosed.Type: GrantFiled: April 2, 2014Date of Patent: October 31, 2017Assignee: SCHNEIDER ELECTRIC IT CORPORATIONInventors: Brian Lee Duncan, Daniel J. Rohr
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Publication number: 20170125923Abstract: An electronic device includes a chassis, a first outlet provided in the chassis, and a power source coupled to the first outlet. The first outlet has a first ground terminal. The device further includes a ground bracket configured to connect first ground terminal of the first outlet to the chassis to ground the first outlet. The electronic device further may include a second outlet provided in the chassis and spaced from the first outlet. The second outlet is coupled to the power source, and has a second ground terminal. The ground bracket is configured to connect the first ground terminal of the first outlet to the second ground terminal of the second outlet and to the chassis. A method of grounding outlets of the electronic device is further disclosed.Type: ApplicationFiled: April 2, 2014Publication date: May 4, 2017Inventors: Brian Lee Duncan, Daniel J. Rohr
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Patent number: 8548625Abstract: An optical vend sensing system for use in vending machines employs a row of light emitters on one side of a region through which a vend product passes during delivery and a row of light detectors on the opposite side. Each detector is substantially aligned with a corresponding one of the emitters, and is capable of receiving light from any of more than one of the emitters when that emitter is activated. The emitters are individually activated in sequential, round-robin fashion and multiple detectors are monitored for each emitter when activated. Interruption of detectible beams between an activated emitter and one of the multiple emitters monitored for the activated emitter. Power applied to an activated emitter is calibrated in steps to a minimum level sufficient to ensure detection by all monitored detectors of light emitted by an activated emitter, plus a safety margin.Type: GrantFiled: January 23, 2007Date of Patent: October 1, 2013Assignee: Crane Merchandising Systems, Inc.Inventors: David Boyd Whitten, William Edwin Booth, Paul Kevin Griner, Brian Lee Duncan
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Publication number: 20120012603Abstract: The present invention provides for a vending system wherein a monitoring system verifies that a product ordered by a vending customer is actually delivered through a delivery area to the customer. If the product ordered is unavailable either because of an out of stock situation or a blockage of the delivery path for that product, the present invention allows the customer to request a refund or order a second product. Additionally, the present invention helps to prevent theft of product from the vending system.Type: ApplicationFiled: July 18, 2011Publication date: January 19, 2012Inventors: David B. Whitten, William Edwin Booth, Paul Kevin Griner, Brian Lee Duncan
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Patent number: 8046100Abstract: The present invention provides for a vending system wherein a monitoring system verifies that a product ordered by a vending customer is actually delivered through a delivery area to the customer. If the product ordered is unavailable either because of an out of stock situation or a blockage of the delivery path for that product, the present invention allows the customer to request a refund or order a second product. Additionally, the present invention helps to prevent theft of product from the vending system.Type: GrantFiled: March 13, 2007Date of Patent: October 25, 2011Assignee: Crane Merchandising Systems, Inc.Inventors: David Boyd Whitten, William Edwin Booth, Paul Kevin Griner, Brian Lee Duncan
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Patent number: 7980418Abstract: The present invention provides for a vending system wherein a monitoring system verifies that a product ordered by a vending customer is actually delivered through a delivery area to the customer. If the product ordered is unavailable either because of an out of stock situation or a blockage of the delivery path for that product, the present invention allows the customer to request a refund or order a second product. Additionally, the present invention helps to prevent theft of product from the vending system.Type: GrantFiled: October 23, 2007Date of Patent: July 19, 2011Assignee: Crane Merchandising Systems, Inc.Inventors: David B. Whitten, William Edwin Booth, Paul Kevin Griner, Brian Lee Duncan
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Patent number: 7787988Abstract: The present invention provides for a vending system wherein a monitoring system verifies that a product ordered by a vending customer is actually delivered through a delivery area to the customer. If the product ordered is unavailable either because of an out of stock situation or a blockage of the deliver path for that product, the present invention allows the customer to request a refund or order a second product. Additionally, the present invention helps to prevent theft of product from the vending system.Type: GrantFiled: October 31, 2007Date of Patent: August 31, 2010Assignee: Crane Merchandising Systems, Inc.Inventors: David B. Whitten, William Edwin Booth, Paul Kevin Griner, Brian Lee Duncan
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Publication number: 20080128449Abstract: The present invention provides for a vending system wherein a monitoring system verifies that a product ordered by a vending customer is actually delivered through a delivery area to the customer. If the product ordered is unavailable either because of an out of stock situation or a blockage of the deliver path for that product, the present invention allows the customer to request a refund or order a second product. Additionally, the present invention helps to prevent theft of product from the vending system.Type: ApplicationFiled: October 31, 2007Publication date: June 5, 2008Inventors: David B. Whitten, William Edwin Booth, Paul Kevin Griner, Brian Lee Duncan
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Patent number: 7286901Abstract: The present invention provides for a vending system wherein a monitoring system verifies that a product ordered by a vending customer is actually delivered through a delivery area to the customer. If the product ordered is unavailable either because of an out of stock situation or a blockage of the delivery path for that product, the present invention allows the customer to request a refund or order a second product. Additionally, the present invention helps to prevent theft of product from the vending system.Type: GrantFiled: June 18, 2002Date of Patent: October 23, 2007Assignee: Crane Co.Inventors: David B. Whitten, William Edwin Booth, Paul Kevin Griner, Brian Lee Duncan
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Patent number: 7191034Abstract: The present invention provides for a vending system wherein a monitoring system verifies that a product ordered by a vending customer is actually delivered through a delivery area to the customer. If the product ordered is unavailable either because of an out of stock situation or a blockage of the delivery path for that product, the present invention allows the customer to request a refund or order a second product. Additionally, the present invention helps to prevent theft of product from the vending system.Type: GrantFiled: March 9, 2004Date of Patent: March 13, 2007Assignee: Crane Co.Inventors: David Boyd Whitten, William Edwin Booth, Paul Kevin Griner, Brian Lee Duncan
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Patent number: 7068232Abstract: An antenna mounting system including a base plate having a mounting surface, a substantantially circular opening through the mounting surface, and attachment means for attaching the base plate to a mounting surface. The housing and the base plate are each dimensioned such that the housing is substantially rotatable within the base plate when the base plate is loosely attached to the mounting surface and such that the housing is substantially fixed when the base plate is tightly attached to the mounting surface. A rotator portion of a rotatable connector is disposed within the housing and is rotatably and controllably attached thereto. A connector portion extends through a slot in the housing and includes a cable connector and a sealing surface dimensioned to mate with an antenna.Type: GrantFiled: July 15, 2004Date of Patent: June 27, 2006Assignee: Metz Communications, Inc.Inventors: Lee A. Duncan, Michael B. Metz
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Publication number: 20060012534Abstract: An antenna mounting system including a base plate having a mounting surface, a substantantially circular opening through the mounting surface, and attachment means for attaching the base plate to a mounting surface. The housing and the base plate are each dimensioned such that the housing is substantially rotatable within the base plate when the base plate is loosely attached to the mounting surface and such that the housing is substantially fixed when the base plate is tightly attached to the mounting surface. A rotator portion of a rotatable connector is disposed within the housing and is rotatably and controllably attached thereto. A connector portion extends through a slot in the housing and includes a cable connector and a sealing surface dimensioned to mate with an antenna.Type: ApplicationFiled: July 15, 2004Publication date: January 19, 2006Inventors: Lee Duncan, Michael Metz
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Patent number: 6842902Abstract: In one aspect of the invention is a method for robust device token management. In x+ bit computers using x bit device cards, tokens are used for managing communication requests from applications to a device by using x+ bit to x bit conversion techniques, accompanied by error checking.Type: GrantFiled: August 15, 2001Date of Patent: January 11, 2005Assignee: Sun Microsystems, Inc.Inventor: William Lee Duncan
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Publication number: 20040172334Abstract: The present invention provides for a vending system wherein a monitoring system verifies that a product ordered by a vending customer is actually delivered through a delivery area to the customer. If the product ordered is unavailable either because of an out of stock situation or a blockage of the delivery path for that product, the present invention allows the customer to request a refund or order a second product. Additionally, the present invention helps to prevent theft of product from the vending system.Type: ApplicationFiled: March 9, 2004Publication date: September 2, 2004Inventors: David Boyd Whitten, William Edwin Booth, Paul Kevin Griner, Brian Lee Duncan
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Publication number: 20040112028Abstract: A mulching lawn mower blade assembly having replaceable inserts and mulching teeth. The mulching teeth may be located on the replaceable inserts or the mulching blade. A sickle insert is disclosed for use in tall grass. The mulching lawn mower blade assembly may include means for sand to flow over the mulching teeth in high sand areas.Type: ApplicationFiled: December 5, 2003Publication date: June 17, 2004Inventors: C. Lee Duncan, Allen J. LaRiviere