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公开(公告)号：US20250053270A1
公开(公告)日：2025-02-13
申请号：US18925873
申请日：2024-10-24
Applicant: SigmaSense, LLC.
Inventor： Kevin Joseph Derichs , Richard Stuart Seger, JR. , Daniel Keith Van Ostrand , Timothy W. Markison
Abstract: A device includes a touch screen that includes a plurality of sensors. The device also includes a touch screen controller that includes a plurality of drive sense circuits, where a drive sense circuit is associated with a sensor of the plurality of sensors, and the drive sense circuit senses an electrical characteristic of the sensor. The device also includes a processing module operably coupled to the plurality of sensing circuits, where the processing module is operable to receive a sense signal regarding the electrical characteristic, determine a coordinate location of the sensor based on the sense signal, and generate a proximal touch signal that includes the coordinate location of the sensor.
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公开(公告)号：US12216862B2
公开(公告)日：2025-02-04
申请号：US18530382
申请日：2023-12-06
Applicant: SIGMASENSE, LLC.
Abstract: A current reference operative drive-sense circuit (DSC) includes a current source operably coupled to a load and a voltage-mode analog to digital converter (ADC). When enabled, the current source is configured to drive a sinusoidal current reference signal to the load thereby generating a load voltage that is based on the sinusoidal current reference signal and an impedance of the load. The voltage-mode ADC is operably coupled the load and to the current source. When enabled, the voltage-mode ADC configured to perform digital sampling of the load voltage and to generate a digital signal that is representative of the load voltage. In some implementations, one or more processing modules is configured to execute operational instructions to process the digital signal that is representative of the load voltage in accordance with determining impedance of the load and/or change of impedance of the load.
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公开(公告)号：US12216169B2
公开(公告)日：2025-02-04
申请号：US18407325
申请日：2024-01-08
Applicant: SIGMASENSE, LLC.
Inventor： Patrick Troy Gray , Gerald Dale Morrison , Michael Frederick David Olley , Daniel Keith Van Ostrand , Richard Stuart Seger, Jr.
IPC: G01R31/367 , G01R31/371 , G01R31/382 , G01R31/392
Abstract: A battery characterization system includes a drive-sense circuit (DSC), memory that stores operational instructions, and processing module(s) operably coupled to the DSC and the memory. Based on a reference signal, the DSC generates a charge signal, which includes an AC (alternating current) component, and provides the charge signal to a terminal of a battery via a single line and simultaneously to senses the charge signal via the single line to detect an electrical characteristic of the battery based on a response of the battery. The DSC generates a digital signal representative of the electrical characteristic of the battery. The processing module(s), based on the operational instructions, generate the reference signal to include a frequency sweep of the AC component of the charge signal (e.g., different frequencies at different times or multiple frequencies simultaneously) and processes the digital signal to characterize the battery across the different respective frequencies and generate spectrum analysis (SA) information of the battery.
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公开(公告)号：US12169614B2
公开(公告)日：2024-12-17
申请号：US18144535
申请日：2023-05-08
Applicant: SIGMASENSE, LLC.
Inventor： Patrick Troy Gray , Gerald Dale Morrison , Daniel Keith Van Ostrand , Richard Stuart Seger, Jr. , Kevin Joseph Derichs , Shayne X. Short , Timothy W. Markison
Abstract: A touch sensor device (TSD) includes TSD electrodes associated with a surface of the TSD. Also, an overlay that includes marker electrode(s) is also associated with a region of the surface of the TSD. The TSD also includes drive-sense circuits (DSCs) operably coupled to the plurality of TSD electrodes. A DSC is configured to provide a TSD electrode signal to a TSD electrode and simultaneously to sense a change of the TSD electrode signal based on a change of impedance of the TSD electrode caused by capacitive coupling between the TSD electrode and the marker electrode(s) of the overlay. Processing module(s) is configured to process a digital signal generated by the DSC and other digital signals generated by other DSCs determine the region of the surface of the TSD that is associated with the overlay and to adapt sensitivity of the TSD within that region.
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公开(公告)号：US20240411496A1
公开(公告)日：2024-12-12
申请号：US18811137
申请日：2024-08-21
Applicant: SigmaSense, LLC.
Inventor： Richard Stuart Seger, JR. , Michael Shawn Gray , Patrick Troy Gray , Daniel Keith Van Ostrand , Kevin Joseph Derichs
IPC: G06F3/14 , G06F3/041 , G06F3/044 , G06F3/04883 , G06F21/31
Abstract: An interactive device is operable to receive a first plurality of sensed signals during a first temporal period. The first plurality of sensed signals indicate a first plurality of changes in electrical characteristics of a set of electrodes of the plurality of electrodes. A first impedance pattern identifying a passive device is detected based on interpreting the first plurality of changes in the electrical characteristics of the set of electrodes during the first temporal period. The passive device is detected based on detecting the first impedance pattern. Written user notion data is detected based on detecting movement of the passive device in relation to the interactive display device during the first temporal period. The written user notation data is processed for display in accordance with at least one display setting corresponding to the passive device.
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Patent Agency Ranking
公开(公告)号：US20240411406A1
公开(公告)日：2024-12-12
申请号：US18810816
申请日：2024-08-21
Applicant: SigmaSense, LLC.
Inventor： Richard Stuart Seger, JR. , Michael Shawn Gray , Daniel Keith Van Ostrand , Hans Howard Eilers , Kevin Joseph Derichs , Sarah Marie Derichs , Patrick Troy Gray , Phuong Huynh
Abstract: A capacitive touch screen display operates by: receiving a plurality of sensed signals indicating variations in mutual capacitance associated with a plurality of cross points formed by a plurality of electrodes; generating capacitance image data associated with the plurality of cross points that includes positive capacitance variation data corresponding to positive variations of the capacitance image data from a nominal value and negative capacitance variation data corresponding to negative variations of the capacitance image data from the nominal value; determining, based on the positive capacitance variation data and the negative capacitance variation data, an upper threshold and a lower threshold; generating compensated capacitance image data, based on the upper threshold and the lower threshold; and processing the compensated capacitance image data to determine a proximal condition of the touch screen display.
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公开(公告)号：US12164351B2
公开(公告)日：2024-12-10
申请号：US17587120
申请日：2022-01-28
Applicant: SIGMASENSE, LLC.
Inventor： Patrick Troy Gray , Gerald Dale Morrison , Daniel Keith Van Ostrand , Richard Stuart Seger, Jr.
IPC: G06F11/30 , G01R19/25 , G05F1/10 , G06F1/26 , G06F1/3234 , G06F3/041 , H02M1/14 , G06F1/3203
Abstract: A power supply signal conditioning system includes a power supply, one or more loads, and a drive-sense circuit (DSC). The power supply is operably coupled to one or more loads. When enabled, the power supply configured to output a power supply signal having a DC (direct current) voltage component and a ripple voltage component that is based on conversion of an AC (alternating current) signal in accordance with generating the power supply signal. The DSC is operably coupled to the power supply. When enabled, the DSC is configured simultaneously to sense the power supply signal and, based on sensing of the power supply signal, adaptively to process the power supply signal in accordance with reducing or eliminating the ripple voltage component of the power supply signal to generate a conditioned power supply signal to service the one or more loads.
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公开(公告)号：US12153771B2
公开(公告)日：2024-11-26
申请号：US18238008
申请日：2023-08-25
Applicant: SigmaSense, LLC.
Inventor： Kevin Joseph Derichs , Richard Stuart Seger, Jr. , Daniel Keith Van Ostrand , Timothy W. Markison
Abstract: A touch controller includes a processing module operably coupled to a plurality of sensing circuits, the processing module is operable to receive a sense signal regarding an electrical characteristic of a sensor of a plurality of sensors. The processing module is further operable to determine the sense signal indicates the electrical characteristic is affected by an identifying signal emitted by a finger. The processing module is further operable to determine a coordinate location of the sensor. The processing module is further operable to generate a proximal touch signal that includes the coordinate location of the sensor.
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公开(公告)号：US20240377849A1
公开(公告)日：2024-11-14
申请号：US18783633
申请日：2024-07-25
Applicant: SigmaSense, LLC.
Inventor： Richard Stuart Seger, JR. , Michael Shawn Gray , Patrick Troy Gray , Daniel Keith Van Ostrand
Abstract: A drive sense circuit (DSC) includes an analog front end (AFE) circuit, a filter circuit, and a data processing circuit. The AFE circuit includes a signal source circuit and a comparison circuit. The signal source circuit, when enabled and coupled to a sensor, provides an analog drive signal to the sensor, which affects an electrical property of the analog drive signal. The comparison circuit compares the analog drive signal as effected by the sensor to a reference signal and produces an analog sensed signal that represents the effected electrical property of the analog drive signal. The filter filters the analog sensed signal to produce a filtered sensed signal. The data processing circuit operably generates a digital value representative of sensed characteristic of the sensor based on the filtered sensed signal.
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公开(公告)号：US20240370118A1
公开(公告)日：2024-11-07
申请号：US18774679
申请日：2024-07-16
Applicant: SigmaSense, LLC.
Inventor： Michael Shawn Gray , Patrick Troy Gray , Daniel Keith Van Ostrand , Richard Stuart Seger, JR. , Timothy W. Markison
Abstract: A touch screen display includes a display configured to display images in a display area. Touch sensitive row electrodes and touch sensitive column electrodes are integrated into the display and spaced apart to support a highest touch resolution. Also included are drive-sense circuits, a first switch network coupling a first group of drive-sense circuits to the touch sensitive row electrodes, and a second switch network coupling a second group of drive-sense circuits to the touch sensitive column electrodes. A switch controller is coupled to the first switch network and to the second switch network, and controls the first and second switch networks to control touch resolution of at least a portion of the display area. A processing is coupled to the switch controller and drive-sense circuits, and is configured to detect a proximate finger or stylus and, in response, transmit touch resolution change information to the switch controller.
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