Patents by Inventor Kartheek Karna
Kartheek Karna 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).
-
Patent number: 11540443Abstract: Receivers are arranged to detect a corresponding observed phase shift, observed attenuation or other observed signal parameters for its respective microphone. An electronic data processor is adapted to estimate a distribution or quantity of material on the sieve based on the observed phase shift, the observed attenuation or the other observed signal parameters relative to a reference phase shift, a reference attenuation or other reference signal parameter. The operator can be alerted via a user interface if the material on the sieve is unevenly distributed or matches a preestablished distribution profile, or the sieve can be adjusted by an actuator to promote a generally uniform distribution.Type: GrantFiled: January 31, 2019Date of Patent: January 3, 2023Assignee: Deere & CompanyInventors: Gurmukh H. Advani, Noel W. Anderson, Kartheek Karna
-
Patent number: 11175254Abstract: A sensing system for obtaining a gradient of soil properties in real-time as a function of soil depth is disclosed herein. The sensing system includes a support structure coupled to an agricultural implement and which is rotatable about a rotational axis relative to a frame of the agricultural implement. A sensor is arranged on a surface of the support structure and configured to generate an output signal indicative of the measured soil property based on a sensed a capacitance change corresponding to a change in a dielectric property of a measured soil sample with which the sensor interacts. A measuring unit is coupled to the at least one sensor and processes the output signal generated by the at least one sensor to generate a gradient profile of the soil properties in real-time as a function of one or more depths for display on a user interface.Type: GrantFiled: August 23, 2019Date of Patent: November 16, 2021Assignee: Deere & CompanyInventors: Jeffrey S. Puhalla, Michael Rhodes, Nikolai Tevs, Kartheek Karna, Noel W. Anderson
-
Publication number: 20200245556Abstract: Receivers are arranged to detect a corresponding observed phase shift, observed attenuation or other observed signal parameters for its respective microphone. An electronic data processor is adapted to estimate a distribution or quantity of material on the sieve based on the observed phase shift, the observed attenuation or the other observed signal parameters relative to a reference phase shift, a reference attenuation or other reference signal parameter. The operator can be alerted via a user interface if the material on the sieve is unevenly distributed or matches a preestablished distribution profile, or the sieve can be adjusted by an actuator to promote a generally uniform distribution.Type: ApplicationFiled: January 31, 2019Publication date: August 6, 2020Inventors: Gurmukh H. Advani, Noel W. Anderson, Kartheek Karna
-
Patent number: 10670763Abstract: A sensor for determining soil properties is disclosed herein. The sensor includes a ground engaging structure adapted for coupling to an agricultural implement and to penetrate soil at a predetermined depth. An electrode assembly is disposed on a sensing surface of the ground engaging structure that includes a plurality of electrode sensing units. The plurality of electrode sensing units are configured to selectively generate a series of electric fields that project outwardly into the surrounding soil in response to receipt of an excitation signal and sense changes in the electric field corresponding to a change in a measured electrical output signal that is used to determine one or more soil properties during movement of the agricultural implement in a field.Type: GrantFiled: February 17, 2017Date of Patent: June 2, 2020Assignee: DEERE & COMPANYInventors: Michael Rhodes, Kartheek Karna, Nikolai Tevs, Jeffrey S. Puhalla, Elijah B. Garner
-
Publication number: 20190376920Abstract: A sensing system for obtaining a gradient of soil properties in real-time as a function of soil depth is disclosed herein. The sensing system includes a support structure coupled to an agricultural implement and which is rotatable about a rotational axis relative to a frame of the agricultural implement. A sensor is arranged on a surface of the support structure and configured to generate an output signal indicative of the measured soil property based on a sensed a capacitance change corresponding to a change in a dielectric property of a measured soil sample with which the sensor interacts. A measuring unit is coupled to the at least one sensor and processes the output signal generated by the at least one sensor to generate a gradient profile of the soil properties in real-time as a function of one or more depths for display on a user interface.Type: ApplicationFiled: August 23, 2019Publication date: December 12, 2019Inventors: Jeffrey S. Puhalla, Michael Rhodes, Nikolai Tevs, Kartheek Karna, Noel W. Anderson
-
Patent number: 10444176Abstract: A sensing system for obtaining a gradient of soil properties in real-time as a function of soil depth is disclosed herein. The sensing system includes a support structure coupled to an agricultural implement and which is rotatable about a rotational axis relative to a frame of the agricultural implement. A sensor is arranged on a surface of the support structure and configured to generate an output signal indicative of the measured soil property based on a sensed a capacitance change corresponding to a change in a dielectric property of a measured soil sample with which the sensor interacts. A measuring unit is coupled to the at least one sensor and processes the output signal generated by the at least one sensor to generate a gradient profile of the soil properties in real-time as a function of one or more depths for display on a user interface.Type: GrantFiled: February 17, 2017Date of Patent: October 15, 2019Assignee: DEERE & COMPANYInventors: Jeffrey S. Puhalla, Michael Rhodes, Nikolai Tevs, Kartheek Karna, Noel W. Anderson
-
Patent number: 10197378Abstract: Embodiments herein relate to a time domain depth sensor system and method for determining a depth of a ground engaging device in soil. The sensor system may include a signal transmission element arranged on an outer periphery of a ground engaging device that is adapted to penetrate soil. The signal transmission element can be arranged to receive and transmit an electrical signal that is responsive to impedance discontinuities detected by a pulse detector. The pulse detector is configured to detect a first and a second reflected signal corresponding to a sensed impedance discontinuities at a first and a second soil location. An electronic data processor is communicatively coupled the pulse detector and is configured to determine the depth of the ground engaging device in the soil based on a difference between a first time of propagation of the first reflected signal and a second time of propagation of the second reflected signal.Type: GrantFiled: October 27, 2016Date of Patent: February 5, 2019Assignee: DEERE & COMPANYInventors: Michael L. Rhodes, Kartheek Karna, Nikolai Tevs, Jeffrey S. Puhalla, Noel W. Anderson
-
Publication number: 20180239044Abstract: A sensor for determining soil properties is disclosed herein. The sensor includes a ground engaging structure adapted for coupling to an agricultural implement and to penetrate soil at a predetermined depth. An electrode assembly is disposed on a sensing surface of the ground engaging structure that includes a plurality of electrode sensing units. The plurality of electrode sensing units are configured to selectively generate a series of electric fields that project outwardly into the surrounding soil in response to receipt of an excitation signal and sense changes in the electric field corresponding to a change in a measured electrical output signal that is used to determine one or more soil properties during movement of the agricultural implement in a field.Type: ApplicationFiled: February 17, 2017Publication date: August 23, 2018Inventors: Michael Rhodes, Kartheek Karna, Nikolai Tevs, Jeffrey S. Puhalla, Elijah B. Garner
-
Publication number: 20180238823Abstract: A sensing system for obtaining a gradient of soil properties in real-time as a function of soil depth is disclosed herein. The sensing system includes a support structure coupled to an agricultural implement and which is rotatable about a rotational axis relative to a frame of the agricultural implement. A sensor is arranged on a surface of the support structure and configured to generate an output signal indicative of the measured soil property based on a sensed a capacitance change corresponding to a change in a dielectric property of a measured soil sample with which the sensor interacts. A measuring unit is coupled to the at least one sensor and processes the output signal generated by the at least one sensor to generate a gradient profile of the soil properties in real-time as a function of one or more depths for display on a user interface.Type: ApplicationFiled: February 17, 2017Publication date: August 23, 2018Inventors: Jeffrey S. Puhalla, Michael Rhodes, Nikolai Tevs, Kartheek Karna, Noel W. Anderson
-
Publication number: 20180120082Abstract: Embodiments herein relate to a time domain depth sensor system and method for determining a depth of a ground engaging device in soil. The sensor system may include a signal transmission element arranged on an outer periphery of a ground engaging device that is adapted to penetrate soil. The signal transmission element can be arranged to receive and transmit an electrical signal that is responsive to impedance discontinuities detected by a pulse detector. The pulse detector is configured to detect a first and a second reflected signal corresponding to a sensed impedance discontinuities at a first and a second soil location. An electronic data processor is communicatively coupled the pulse detector and is configured to determine the depth of the ground engaging device in the soil based on a difference between a first time of propagation of the first reflected signal and a second time of propagation of the second reflected signal.Type: ApplicationFiled: October 27, 2016Publication date: May 3, 2018Inventors: Michael L. Rhodes, Kartheek Karna, Nikolai Tevs, Jeffrey S. Puhalla, Noel W. Anderson
-
Patent number: 7903417Abstract: An electrical circuit assembly includes an electrical circuit substrate having a first side; a heat sink including a metal base plate having a first side and a second side, and a plurality of fins extending from the second side; and a thermally conductive and electrically insulating adhesive directly interconnecting at least a portion of the first side of the electrical circuit substrate with the first side of the base plate.Type: GrantFiled: October 9, 2007Date of Patent: March 8, 2011Assignee: Deere & CompanyInventors: Ronnie Dean Stahlhut, Clement Vanden Godbold, Jeffrey Gerald Hopman, Kartheek Karna, James Arthur Springer, John Lopes Alves, Lise Alves, legal representative
-
Publication number: 20080247139Abstract: An electrical circuit assembly includes an electrical circuit substrate having a first side; a heat sink including a metal base plate having a first side and a second side, and a plurality of fins extending from the second side; and a thermally conductive and electrically insulating adhesive directly interconnecting at least a portion of the first side of the electrical circuit substrate with the first side of the base plate.Type: ApplicationFiled: October 9, 2007Publication date: October 9, 2008Inventors: Ronnie D. Stahlhut, Clement Vanden Godbold, Jeffrey Gerald Hopman, Kartheek Karna, James Arthur Springer, John Lopes Alves, Lise Alves
-
Publication number: 20080084671Abstract: An electrical circuit assembly includes a flexible electrical circuit having a first side; a heat sink including a metal base plate having a first side and a second side, and a plurality of fins extending from the second side; and a thermally conductive and electrically insulating adhesive directly interconnecting at least a portion of the first side of the flexible electrical circuit with the first side of the base plate.Type: ApplicationFiled: October 10, 2006Publication date: April 10, 2008Inventors: Ronnie Dean Stahlhut, Clement Vanden Godbold, Jeffrey Gerald Hopman, Kartheek Karna, James Arthur Springer, John Lopes Alves, Lise Alves