Patents by Inventor Eric J. Larson
Eric J. Larson 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: 20240092267Abstract: A vehicular interior rearview mirror assembly includes a mirror head pivotally adjustable about a mirror support. The mirror head includes a video display device disposed rearward of a prismatic mirror reflective element having a transflective mirror reflector. A touch sensor is disposed at the prismatic mirror reflective element and is associated with circuitry at a flexible printed circuit of the video display device. The video display device is operable to display video images captured by a rearward viewing camera of the vehicle. Light emitted by the video display device passes through the transflective mirror reflector for viewing of displayed video images by the driver of the vehicle viewing the prismatic mirror reflective element. The reflective region of the transflective mirror reflector of the prismatic mirror reflective element reflects at least 40 percent of visible light incident at the front side of the prismatic mirror reflective element.Type: ApplicationFiled: December 4, 2023Publication date: March 21, 2024Inventors: Mark L. Larson, Christopher R. Koetje, Anthony J. LaCross, Eric Peterson
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Publication number: 20230376069Abstract: Embodiment herein provides an Infrastructure article (101) and method thereof for synchronizing blinks of infrastructure articles in a mesh network. The method includes detecting an expiry of a sync timer counted by a real time clock (RTC) and determining whether a charge level of a battery (105) of the infrastructure article (101) meets a battery charge threshold. When the charge level of the battery (105) of the infrastructure article (101) meets the battery charge threshold, the method includes establishing a connection with other infrastructure article and/or an infrastructure article server (200) in the mesh network, and sending a time to synchronize blink of the at least one light source (106) to all other infrastructure articles in the mesh network. When the charge level of the battery (105) of the infrastructure article (101) does not meet the battery charge threshold, the method includes resetting the sync timer, and initiating a count of the sync timer.Type: ApplicationFiled: October 22, 2021Publication date: November 23, 2023Inventors: Lingesh Venugopalappa, Justin M. Johnson, Eric J. Larson, James W. Howard, Mark G. Mathews
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Patent number: 11282313Abstract: Smart locking devices, systems and methods are provided. A user mobile device can transmit a wireless signal to an electronic locking device. The electronic locking device includes a power sensor to sense the harvested power, and a controller to process the communication component to determine an algorithm to operate the electronic locking device. The mobile device is connected to a network environment where user authentication and encryption data can be generated, stored, and relayed to multiple user mobile devices for wireless key management for authentication.Type: GrantFiled: December 23, 2020Date of Patent: March 22, 2022Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: Ronald J. Jesme, Cory M. Arthur, Kandyce M. Bohannon, Eric J. Larson
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Patent number: 11246644Abstract: A surface ablation system includes an electrosurgical generator, and elongated shaft, a plug, and a circuit assembly. The elongated shaft includes a proximal end portion and a distal end portion. The plug is supported on the distal end portion of the elongated shaft. The circuit assembly is supported on the plug and in electrical communication with the electrosurgical generator. The circuit assembly includes spaced-apart traces positioned in arrays about the plug. Each of the traces is configured to emit electrosurgical energy along the arrays to treat tissue positioned adjacent to the traces.Type: GrantFiled: March 18, 2019Date of Patent: February 15, 2022Assignee: Covidien LPInventors: Joe D. Sartor, Arlen K. Ward, John A. Hammerland, III, Eric J. Larson, Patrick J. Digmann
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Publication number: 20210201607Abstract: Smart locking devices, systems and methods are provided. A user mobile device can transmit a wireless signal to an electronic locking device. The electronic locking device includes a power sensor to sense the harvested power, and a controller to process the communication component to determine an algorithm to operate the electronic locking device. The mobile device is connected to a network environment where user authentication and encryption data can be generated, stored, and relayed to multiple user mobile devices for wireless key management for authentication.Type: ApplicationFiled: December 23, 2020Publication date: July 1, 2021Inventors: Ronald J. Jesme, Cory M. Arthur, Kandyce M. Bohannon, Eric J. Larson
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Patent number: 10842563Abstract: An electrosurgical generator is disclosed. The generator includes an RF output stage configured to generate at least one electrosurgical waveform including a plurality of cycles; at least one sensor coupled to the RF output stage, the at least one sensor configured to measure a voltage and a current of the at least one electrosurgical waveform; and a controller coupled to the at least one sensor and the RF output stage, the controller including a proportional-integral-derivative controller having at least one of voltage limiter or a current limiter, the proportional-integral-derivative controller configured to saturate the RF output stage based on voltage-current characteristics of the RF output stage.Type: GrantFiled: February 26, 2014Date of Patent: November 24, 2020Assignee: COVIDIEN LPInventors: James A. Gilbert, Joshua H. Johnson, Eric J. Larson, Brian L. Roberts, Braddon M. Van Slyke
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Publication number: 20190307501Abstract: A surface ablation system includes an electrosurgical generator, and elongated shaft, a plug, and a circuit assembly. The elongated shaft includes a proximal end portion and a distal end portion. The plug is supported on the distal end portion of the elongated shaft. The circuit assembly is supported on the plug and in electrical communication with the electrosurgical generator. The circuit assembly includes spaced-apart traces positioned in arrays about the plug. Each of the traces is configured to emit electrosurgical energy along the arrays to treat tissue positioned adjacent to the traces.Type: ApplicationFiled: March 18, 2019Publication date: October 10, 2019Inventors: JOE D. SARTOR, ARLEN K. WARD, JOHN A. HAMMERLAND, III, ERIC J. LARSON, PATRICK J. DIGMANN
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Patent number: 9655670Abstract: The electrosurgical systems and methods of the present disclosure include a tissue resistance measurement system that compensates for capacitive parasitics in a cable connecting an electrosurgical generator to and electrosurgical cable to estimate the real resistance of a tissue load. The electrosurgical generator includes an output stage coupled to an electrical energy source and generates electrosurgical energy. The electrosurgical generator includes a plurality of sensors sensing a voltage and current of the electrosurgical energy and a controller controlling the output stage. The controller includes a calculator that calculates a real part of an impedance based on the sensed voltage and current, an estimator that estimates a resistance of the tissue using a solution to a quadratic equation that is a function of the real part of the impedance, and a control signal generator configured to generate a control signal for the output stage based on the resistance of the tissue.Type: GrantFiled: February 14, 2014Date of Patent: May 23, 2017Assignee: COVIDIEN LPInventors: Eric J. Larson, Carolyn G. Ford, Alexander M. Waskiewicz
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Patent number: 9636165Abstract: The electrosurgical systems and methods of the present disclosure include a tissue resistance measurement system that compensates for capacitive parasitics in a cable connecting an electrosurgical generator to and electrosurgical cable to estimate the real resistance of a tissue load. The electrosurgical generator includes an output stage coupled to an electrical energy source and generates electrosurgical energy. The electrosurgical generator includes a plurality of sensors sensing a voltage and current of the electrosurgical energy and a controller controlling the output stage. The controller includes a calculator that calculates a real part of an impedance based on the sensed voltage and current, an estimator that estimates a resistance of the tissue using a solution to a quadratic equation that is a function of the real part of the impedance, and a control signal generator configured to generate a control signal for the output stage based on the resistance of the tissue.Type: GrantFiled: February 14, 2014Date of Patent: May 2, 2017Assignee: COVIDIEN LPInventors: Eric J. Larson, Carolyn G. Ford, Alexander M. Waskiewicz
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Publication number: 20150032098Abstract: The electrosurgical systems and methods of the present disclosure include a tissue resistance measurement system that compensates for capacitive parasitics in a cable connecting an electrosurgical generator to and electrosurgical cable to estimate the real resistance of a tissue load. The electrosurgical generator includes an output stage coupled to an electrical energy source and generates electrosurgical energy. The electrosurgical generator includes a plurality of sensors sensing a voltage and current of the electrosurgical energy and a controller controlling the output stage. The controller includes a calculator that calculates a real part of an impedance based on the sensed voltage and current, an estimator that estimates a resistance of the tissue using a solution to a quadratic equation that is a function of the real part of the impedance, and a control signal generator configured to generate a control signal for the output stage based on the resistance of the tissue.Type: ApplicationFiled: February 14, 2014Publication date: January 29, 2015Applicant: COVIDIEN LPInventors: ERIC J. LARSON, CAROLYN G. FORD, ALEXANDER M. WASKIEWICZ
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Publication number: 20150032099Abstract: The electrosurgical systems and methods of the present disclosure include a tissue resistance measurement system that compensates for capacitive parasitics in a cable connecting an electrosurgical generator to and electrosurgical cable to estimate the real resistance of a tissue load. The electrosurgical generator includes an output stage coupled to an electrical energy source and generates electrosurgical energy. The electrosurgical generator includes a plurality of sensors sensing a voltage and current of the electrosurgical energy and a controller controlling the output stage. The controller includes a calculator that calculates a real part of an impedance based on the sensed voltage and current, an estimator that estimates a resistance of the tissue using a solution to a quadratic equation that is a function of the real part of the impedance, and a control signal generator configured to generate a control signal for the output stage based on the resistance of the tissue.Type: ApplicationFiled: February 14, 2014Publication date: January 29, 2015Applicant: COVIDIEN LPInventors: ERIC J. LARSON, CAROLYN G. FORD, ALEXANDER M. WASKIEWICZ
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Publication number: 20140276754Abstract: An electrosurgical generator is disclosed. The generator includes an RF output stage configured to generate at least one electrosurgical waveform including a plurality of cycles; at least one sensor coupled to the RF output stage, the at least one sensor configured to measure a voltage and a current of the at least one electrosurgical waveform; and a controller coupled to the at least one sensor and the RF output stage, the controller including a proportional-integral-derivative controller having at least one of voltage limiter or a current limiter, the proportional-integral-derivative controller configured to saturate the RF output stage based on voltage-current characteristics of the RF output stage.Type: ApplicationFiled: February 26, 2014Publication date: September 18, 2014Applicant: COVIDIEN LPInventors: JAMES A. GILBERT, JOSHUA H. JOHNSON, ERIC J. LARSON, BRIAN L. ROBERTS, BRADDON M. VAN SLYKE
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Patent number: 6344146Abstract: A portable, self-contained, fully integrated water purification device which includes a receptacle modified to accommodate a filtration assembly for purifying water, and to store water following purification. The receptacle provides separate openings for water intake, and water outflow. The filtration assembly includes a pump and a multistage filter cartridge. Pump action draws water into the water purification device and forces the water through the multistage filter and into the receptacle. Purified water may be stored in the receptacle until consumption.Type: GrantFiled: December 9, 1999Date of Patent: February 5, 2002Assignee: Battelle Memorial InstituteInventors: John S. Moorehead, Thomas A. Pettenski, John F. Searle, Eric J. Larson