Patents by Inventor Thomas B. Campbell
Thomas B. Campbell 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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Publication number: 20240085373Abstract: A method of operating a differential mobility spectrometer (DMS) includes providing a heater disposed proximate a ceramic body of a DMS cell. A first control voltage is applied to the heater. A first threshold is detected by a first sensor disposed within a curtain plate that substantially surrounds the DMS cell. A second control voltage is applied to the heater based at least in part on the detected first threshold. During application of the second control voltage, a mass spectrometry analysis of a gas within the DMS cell is performed.Type: ApplicationFiled: February 23, 2022Publication date: March 14, 2024Applicant: DH Technologies Development Pte. Ltd.Inventors: John L. CAMPBELL, Bradley B. SCHNEIDER, Thomas R. COVEY
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Publication number: 20230290322Abstract: A system and method for synchronizing two or more display elements of a multiple element display, is disclosed. The method includes embedding a frame count signal into the blanking portion of a video frame for each data stream received by the multiple display elements. Upon displaying the pixel data from a video frame, a frame count signal containing an identifying frame count is transmitted back to the computer. The computer compares the frame count signals to determine if the multiple display elements are synchronized. Upon a determination that the multiple display elements are not synchronized, the data stream for one or more display elements are adjusted accordingly. The system may be configurated as a federated system with two or more computers each communicatively coupled to each display element in a hierarchal system, where a secondary computer can control a display element if the primary computer or primary computer link fails.Type: ApplicationFiled: March 10, 2022Publication date: September 14, 2023Inventors: Thomas B. Campbell, Ke You Teh, Dean C. Karl
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Patent number: 11462827Abstract: Systems and apparatuses include an electronically scanned array system including a power supply system, a radiating element subarray, a plurality of beamformer chips, and a plurality of control buses. The radiating element subarray includes active radiating elements, and between about one percent and about twenty percent reserve radiating elements distributed throughout the active radiating elements. Each control bus includes a plurality of primary control paths providing communication from the control bus to the beamformer chips, and a reserve control paths structured to be remapped to provide communication from the control bus to the beam former chips in the event that one of the plurality of primary control paths fails.Type: GrantFiled: November 6, 2020Date of Patent: October 4, 2022Assignee: Rockwell Collins, Inc.Inventors: Lee M. Paulsen, Thomas B. Campbell, Bryan S. McCoy, Adrian A. Hill, Dana J. Jensen, Roger A. Dana
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Patent number: 11429224Abstract: A touchscreen device utilizes digital scan to resolve a touch location with high precision. The touchscreen device includes touchells of about 3.175 mm by 3.175 mm (0.125 inches by 0.125 inches). An integrated circuit detects contacts in the touchells that resolve to touches on the touchscreen, and communicates those touches to a micro-controller via a serial bus. Silver epoxy interconnects for the tracks are reduced or eliminated. Multiple touchscreens having distinct touchell networks may be disposed to create a larger touchscreen area. Similarly, a single touchscreen may be divided quadrants, each with a distinct touchell network.Type: GrantFiled: January 6, 2021Date of Patent: August 30, 2022Assignee: Rockwell Collins, Inc.Inventors: Donald E Mosier, Thomas B. Campbell, Stan Sandoval, Alan M Kuefler, Brian Grunewaldt, Clint L. Gosch
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Patent number: 11385738Abstract: A touchscreen device utilizes digital scan to resolve a touch location with high precision. The touchscreen device includes touchells of about 3.175 mm by 3.175 mm (0.125 inches by 0.125 inches). An integrated circuit detects contacts in the touchells that resolve to touches on the touchscreen, and communicates those touches to a micro-controller via a serial bus. Silver epoxy interconnects for the tracks are reduced or eliminated. Multiple touchscreens having distinct touchell networks may be disposed to create a larger touchscreen area. Similarly, a single touchscreen may be divided quadrants, each with a distinct touchell network.Type: GrantFiled: January 6, 2021Date of Patent: July 12, 2022Assignee: Rockwell Collins, Inc.Inventors: Donald E Mosier, Thomas B. Campbell, Stan Sandoval, Alan M Kuefler, Brian Grunewaldt, Clint L. Gosch
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Publication number: 20220214793Abstract: A touchscreen device utilizes digital scan to resolve a touch location with high precision. The touchscreen device includes touchells of about 3.175 mm by 3.175 mm (0.125 inches by 0.125 inches). An integrated circuit detects contacts in the touchells that resolve to touches on the touchscreen, and communicates those touches to a micro-controller via a serial bus. Silver epoxy interconnects for the tracks are reduced or eliminated. Multiple touchscreens having distinct touchell networks may be disposed to create a larger touchscreen area. Similarly, a single touchscreen may be divided quadrants, each with a distinct touchell network.Type: ApplicationFiled: January 6, 2021Publication date: July 7, 2022Applicant: Rockwell Collins, Inc.Inventors: Donald E. Mosier, Thomas B. Campbell, Stan Sandoval, Alan M. Kuefler, Brian Grunewaldt, Clint L. Gosch
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Patent number: 11316261Abstract: A satellite communication system for an aircraft communicates with multiple satellite constellations. The communication system includes a phased array antenna system and a transceiver. The transceiver is configured to communicate with a number of satellite constellations and configured to support simultaneously links to two or more constellations via the phased array antenna system. The satellite constellations can be micro-satellite, MEO, LEO, and GEO constellations.Type: GrantFiled: December 6, 2019Date of Patent: April 26, 2022Assignee: Rockwell Collins, Inc.Inventors: Thomas B. Campbell, Lee M. Paulsen
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Patent number: 11280836Abstract: A system and method for detecting failures in a single-phase AC motor is disclosed. After a startup sequence, the motor is unpowered and a measurement is taken across terminals in the motor to detect a signal from residual magnetism in the iron core of the rotor. If the rotor was successfully started, the signal will be above a predetermined threshold. The signal may be measured across either a main stator winding or a start stator winding. Where the signal does not exceed the predetermined threshold, the startup sequence may be re-initiated and/or a failure message may be sent to an operator.Type: GrantFiled: May 11, 2020Date of Patent: March 22, 2022Assignee: Rockwell Collins, Inc.Inventor: Thomas B. Campbell
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Publication number: 20210349148Abstract: A system and method for detecting failures in a single-phase AC motor is disclosed. After a startup sequence, the motor is unpowered and a measurement is taken across terminals in the motor to detect a signal from residual magnetism in the iron core of the rotor. If the rotor was successfully started, the signal will be above a predetermined threshold. The signal may be measured across either a main stator winding or a start stator winding. Where the signal does not exceed the predetermined threshold, the startup sequence may be re-initiated and/or a failure message may be sent to an operator.Type: ApplicationFiled: May 11, 2020Publication date: November 11, 2021Inventor: Thomas B. Campbell
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Patent number: 11094282Abstract: A method for reducing touch latency within a user interface of an aircraft display, the method including receiving, by a latency reduction unit, data from the aircraft display, where the data is of one or more data types, entering into one or more queues, by the latency reduction unit, the data based on the one or more data types, and sending, via a bus, the data asynchronously to a display processor of an aircraft display, where sending the data asynchronously includes transmitting the data by packets of data bits at an irregular rate.Type: GrantFiled: March 21, 2019Date of Patent: August 17, 2021Assignee: Rockwell Collins, Inc.Inventors: Alan M. Kuefler, Amir Beganovic, Thomas B. Campbell, Brian T. Grunewaldt, Nicolas F. Parilo
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Patent number: 10962818Abstract: A system for optimizing warm-up time of a display device may include a display device including a display substrate configured to display at least one image, the display substrate including a first display zone and at least one additional display zone. The display device may further include one or more heating layers including a first heating layer portion and at least one additional heating layer portion. The system may further include a controller configured to: generate a first electrical current within the first heating layer portion in order to increase a temperature of the first display zone of the display substrate; and generate at least one additional electrical current within the at least one additional heating layer portion in order to increase a temperature of the at least one additional display zone of the display substrate.Type: GrantFiled: September 16, 2019Date of Patent: March 30, 2021Assignee: Rockwell Collins, Inc.Inventors: Thomas B. Campbell, Christian T. Deloy
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Publication number: 20210080776Abstract: A system for optimizing warm-up time of a display device may include a display device including a display substrate configured to display at least one image, the display substrate including a first display zone and at least one additional display zone. The display device may further include one or more heating layers including a first heating layer portion and at least one additional heating layer portion. The system may further include a controller configured to: generate a first electrical current within the first heating layer portion in order to increase a temperature of the first display zone of the display substrate; and generate at least one additional electrical current within the at least one additional heating layer portion in order to increase a temperature of the at least one additional display zone of the display substrate.Type: ApplicationFiled: September 16, 2019Publication date: March 18, 2021Inventors: Thomas B. Campbell, Christian T. Deloy
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Publication number: 20210057815Abstract: Systems and apparatuses include an electronically scanned array system including a power supply system, a radiating element subarray, a plurality of beamformer chips, and a plurality of control buses. The radiating element subarray includes active radiating elements, and between about one percent and about twenty percent reserve radiating elements distributed throughout the active radiating elements. Each control bus includes a plurality of primary control paths providing communication from the control bus to the beamformer chips, and a reserve control paths structured to be remapped to provide communication from the control bus to the beam former chips in the event that one of the plurality of primary control paths fails.Type: ApplicationFiled: November 6, 2020Publication date: February 25, 2021Applicant: Rockwell Collins, Inc.Inventors: Lee M. Paulsen, Thomas B. Campbell, Bryan S. McCoy, Adrian A. Hill, Dana J. Jensen, Roger A. Dana
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Patent number: 10910709Abstract: Systems and methods relate to an electronically scanned antenna array. A beamforming circuit includes a first input, a first output, a second input, a second output and an antenna interface. The antenna interface is coupled to the electronically scanned antenna array. A first control circuit is coupled to the first input and the first output and is configured to provide first beamforming data to the beamforming circuit via the first input. A second control circuit is coupled to the second input and the second output and is configured to provide second beamforming data to the beam forming circuit via the second input.Type: GrantFiled: January 22, 2018Date of Patent: February 2, 2021Assignee: Rockwell Collins, Inc.Inventors: Adrian A. Hill, Thomas B. Campbell
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Patent number: 10833408Abstract: Systems and apparatuses include an electronically scanned array system including a power supply system, a radiating element subarray, a plurality of beamformer chips, and a plurality of control buses. The power supply system a first power converter structured to receive and condition mains power, a second power converter arranged in parallel with the first power converter, and a controller structured to monitor the first power converter and the second power converter and to operate one of a first switch or a second switch to provide conditioned power. The radiating element subarray includes active radiating elements, and between about one percent and about twenty percent reserve radiating elements distributed throughout the active radiating elements.Type: GrantFiled: July 7, 2017Date of Patent: November 10, 2020Assignee: Rockwell Collins, Inc.Inventors: Lee M. Paulsen, Thomas B. Campbell, Bryan S. McCoy, Adrian A. Hill, Dana J. Jensen, Roger A. Dana
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Patent number: 10732774Abstract: An aircraft includes a cursor control device having a defined return path for the touch sensor so that the impedance in the return path is known. The defined return path is embodied in a conductive feature in the cursor control device palm contact area to ground the user and improve the system's signal to noise ratio. The defined return path normalizes signal variability due to environmental factors and user specific factors such as finger size, skin moisture, contaminants, etc.Type: GrantFiled: March 21, 2018Date of Patent: August 4, 2020Assignee: Rockwell Collins, Inc.Inventors: Clint L. Gosch, Alan M. Kuefler, Thomas B. Campbell
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Publication number: 20200098181Abstract: Systems (100) and methods (500) for inspecting and/or interacting with a Real-World Space Structure (“RWSS”) deployed in space using VR technology. The methods comprise: obtaining, by a computing device located on Earth, a first digital 3D model of RWSS having moving parts with VR positional tracking markers coupled thereto; receiving a video generated by at least one camera of RWSS deployed in space, where at least some of the VR positional tracking markers were in the camera's view at the time of the video's creation; using the video's content to convert the first digital 3D model into a second digital 3D model representative of current positions and orientations of RWSS's moving parts; and providing an operator with a real-time VR experience with RWSS by displaying the second digital 3D model in a VR space environment.Type: ApplicationFiled: September 26, 2018Publication date: March 26, 2020Inventor: Thomas B. Campbell
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Patent number: 10566683Abstract: A satellite communication system for an aircraft communicates with multiple satellite constellations. The communication system includes a phased array antenna system and a transceiver. The transceiver is configured to communicate with a number of satellite constellations and configured to support simultaneously links to two or more constellations via the phased array antenna system. The satellite constellations can be micro-satellite, MEO, LEO, and GEO constellations.Type: GrantFiled: January 10, 2017Date of Patent: February 18, 2020Assignee: ROCKWELL COLLINS, INC.Inventors: Thomas B. Campbell, Lee M. Paulsen
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Patent number: 10484082Abstract: Space asset tracking system includes a space asset tag (SAT) disposed in a tag housing. A space vehicle tracking system (SVTS) disposed within the tag housing includes a power supply, a position sensing receiver system (PSRS), and a ground link radio frequency (GLRF) transmitter under the control of a processing circuit. The processing circuit selectively causes the GLRF transmitter to automatically transmit tracking information based on the position information. The system can also include a ground station for receiving the tracking information.Type: GrantFiled: December 2, 2016Date of Patent: November 19, 2019Assignee: Haris CorporationInventors: Jerry C. Brand, Derek M. Tournear, Andrew J. Lee, Thomas B. Campbell, Norberto H. Marquez-Arroyo
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Patent number: 10211510Abstract: A satellite system includes directional antenna with a gain pattern response having nulls where interfering adjacent satellite signals would be received. Using an electronically scanned array (ESA), sub-arrays of the ESA sample interfering adjacent satellite signals and then filter the sampled signals from the primary single received by the ESA. Digital signal processing increases the accuracy of the filtering process by analyzing the interfering adjacent satellite signal to determine the angle-of-arrival of the signal.Type: GrantFiled: September 13, 2016Date of Patent: February 19, 2019Assignee: Rockwell Collins, Inc.Inventors: Lee M. Paulsen, Thomas B. Campbell, Dana J. Jensen