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 at least a portion 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 to determine characteristic(s) of the overlay that is associated with the at least a portion of the surface of the TSD.

Abstract: A capacitive touch screen display operates by: providing a display configured to render frames of data into visible images; providing a plurality of electrodes integrated into the display to facilitate touch sense functionality based on electrode signals having a drive signal component and a receive signal component; generating, via a plurality of drive-sense circuits coupled to at least some of the plurality of electrodes, a plurality of sensed signals; receiving the plurality of sensed signals; generating capacitance image data associated with the plurality of cross points that includes capacitance variation data corresponding to variations of the capacitance image data from a nominal value; and processing the capacitance image data to determine a touchless indication proximal to the touch screen display based on a touchless indication threshold.

Abstract: A sensor system is operable to: communicate a first ID signal at a first frequency between a first passenger restraint and a first sensor circuit through a body of a first user in a first vehicle chair; determine interaction with an interactable element corresponding to the first sensor circuit based on sensed signal data from a first sensor circuit indicating changes in electrical properties of an electrode of the first sensor circuit; determine the interaction is via the first user in the first vehicle chair when the sensed signal data indicates detection of the first frequency; and when the sensed signal data indicates detection of the first frequency, perform a first vehicle functionality of a set of vehicle functionalities based on configuration data corresponding to the first user.

Abstract: A sensor system is operable to: communicate a first ID signal at a first frequency between a first perimeter sensor and a first sensor circuit through a body of a first user in a first vehicle chair, determine interaction with an interactable element corresponding to the first sensor circuit based on sensed signal data from a first sensor circuit indicating changes in electrical properties of an electrode of the first sensor circuit; determine the interaction is via the first user in the first vehicle chair when the sensed signal data indicates detection of the first frequency; and when the sensed signal data indicates detection of the first frequency, perform a first vehicle functionality of a set of vehicle functionalities based on configuration data corresponding to the first user.

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 writing 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 writing passive device is detected based on detecting the first impedance pattern. Written user notion data is detected based on detecting movement of the writing 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 writing passive device.

Abstract: An e-pen includes e-pen sensor electrodes (including a first and a second e-pen sensor electrode) and drive-sense circuits (DSCs) (including a first DSC and a second DSC. The first DSC drives a first e-pen signal having a first frequency via a first single line coupling to the first e-pen sensor electrode and simultaneously senses, via the first single line, the first e-pen signal. Based on e-pen/touch sensor device interaction, the first e-pen signal is coupled into at least one touch sensor electrode of the touch sensor device. The first DSC process the first e-pen signal to generate a first digital signal representative of a first electrical characteristic of the first e-pen sensor electrode. Similarly, the second DSC drives a second e-pen signal having a second frequency via a second single line coupling to the second e-pen sensor electrode and simultaneously senses, via the second single line, the second e-pen signal.

Abstract: A capacitive imaging glove includes electrodes implemented throughout the capacitive imaging glove and drive-sense circuits (DSCs) such that a DSC receives a reference signal generates a signal based thereon. The DSC provides the signal to a first electrode via a single line and simultaneously senses it. Note the signal is coupled from the first electrode to the second electrode via a gap therebetween. The DSC generates a digital signal representative of the electrical characteristic of the first electrode. Processing module(s), when enabled, is/are configured to execute operational instructions (e.g., stored in and/or retrieved from memory) to generate the reference signal, process the digital signal to determine the electrical characteristic of the first electrode, and process the electrical characteristic of the first electrode to determine a distance between the first electrode and the second electrode, and generate capacitive image data representative of a shape of the capacitive imaging glove.

Abstract: A touch sensor system includes touch sensors, drive-sense circuits (DSCs), memory, and a processing module. A DSC drives a first signal via a single line coupling to a touch sensor and simultaneously senses, when present, a second signal that is uniquely associated with a user. The DSC processes the first signal and/or the second signal to generate a digital signal that is representative of an electrical characteristic of the touch sensor. The processing module executes operational instructions (stored in the memory) to process the digital signal to detect interaction of the user with the touch sensor and to determine whether the interaction of the user with the touch sensor compares favorably with authorization. When not authorized, the processing module aborts execution of operation(s) associated with the interaction of the user with the touch sensor. Alternatively, when authorized, the processing module facilitates execution of the operation(s).

Abstract: A rotating equipment system with in-line drive-sense circuit (DSC) electric power signal processing includes rotating equipment, in-line drive-sense circuits (DSCs), and one or more processing modules. The in-line DSCs receive input electrical power signals and generate motor drive signals for the rotating equipment. An in-line DSC receives an input electrical power signal, processes it to generate and output a motor drive signal to the rotating equipment via a single line and simultaneously senses the motor drive signal via the single line. Based on the sensing of the motor drive signal via the single line, the in-line DSC provides a digital signal to the one or more processing modules that receive and process the digital signal to determine information regarding one or more operational conditions of the rotating equipment, and based thereon, selectively facilitate one or more adaptation operations on the motor drive signal via the in-line DSC.

Abstract: A capacitive touch screen display operates by: providing a display configured to render frames of data into visible images; providing a plurality of electrodes integrated into the display to facilitate touch sense functionality based on electrode signals having a drive signal component and a receive signal component; generating, via a plurality of drive-sense circuits coupled to at least some of the plurality of electrodes, a plurality of sensed signals; receiving the plurality of sensed signals; generating capacitance image data associated with the plurality of cross points that includes capacitance variation data corresponding to variations of the capacitance image data from a nominal value; and processing the capacitance image data to determine a touchless indication proximal to the touch screen display based on a touchless indication threshold.

Abstract: A method includes transmitting, by a plurality of drive sense circuits of an interactive display device, a plurality of signals on a plurality of electrodes of the interactive display device. A writing passive device is identified based on a first plurality of changes detected in the electrical characteristics of the set of electrodes. Written user notion data is determined based on detecting movement of the writing passive device in relation to the interactive display device, and the written user notation data is displayed. An erasing passive device is identified based on a second plurality of changes detected in the electrical characteristics of the set of electrodes. Erased portions of the written user notation data is determined based on detecting movement of the erasing passive device in relation to the interactive display device, and the updated written user notation data is displayed based on no longer displaying the erased portions.

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.

Abstract: A drive-sense circuit module (DSC) includes at least one regulated source circuit coupled to a load, and to a loop correction circuit. The regulated source circuit generates a power signal, which has a regulated characteristic and a controlled characteristic. At least one reference circuit applies a reference signal to the loop correction circuit that establishes a reference value of the controlled characteristic. The loop correction circuit senses an effect of one or more load characteristics on a sensed value of the controlled characteristic of the power signal, and generates a comparison signal based on the sensed value and the reference value of the controlled characteristic. A regulation signal is generated based on the comparison signal, and used to regulate the regulated characteristic of the power signal.

Abstract: A channel driver circuit includes a differential module and a driver module. In some examples, the channel driver circuit also includes a sigma-delta module. The differential module receives, via a single node of a load, a channel driving signal that is provided to the load at the single node (e.g., that is based on an electrical characteristic of the load) and generates an analog error signal that is based on the channel driving signal and a reference signal. The driver module is coupled to the differential module and generates the channel driving signal based on the analog error signal or a digital error signal corresponding to the analog error signal and transmits the channel driving signal via the single node to the load. The channel driver circuit simultaneously transmits the channel driving signal to the load at the single node and senses the channel driving signal at the single node.

Abstract: A touch screen display is operable to operate in a first mode during a first temporal period based on activating exactly one set of drive-sense circuits of a plurality of sets of drive-sense circuits to generate a corresponding one set of sensed signals during the first temporal period, and processing the corresponding one set of sensed signals to generate first proximal interaction data for the first temporal period. The touch screen display is operable to operate in a second mode during a second temporal period after the first temporal period based on activating more than one set of drive-sense circuits of the plurality of sets of drive-sense circuits to generate a corresponding more than one set of sensed signals during the second temporal period, and processing the set of sensed signals to generate second proximal interaction data for the second temporal period.

Abstract: A pen apparatus with a pressure sensitive tip mechanism that internally generates pressure, tilt, and/or barrel rotation through the use of a multi-axis measurement scheme with simultaneous transmit, receive, and sensing driver capability operable in conjunction with a receiving system or in a relative stand-alone manner. Signaling schemes are provided for operating the pen apparatus to achieve improved function. Systems and methods are provided for operating a pen, and for operating a pen with a touch sensor system. Drive/receive circuitry and methods of driving and receiving sensor electrode signals are provided that allow digital I/O pins to be used to interface with touch sensor electrodes. This circuitry may be operated in modes to sense various combinations of signals coupled within a pen, or from outside of a pen.

Abstract: A capacitive imaging glove includes electrodes implemented throughout the capacitive imaging glove and drive-sense circuits (DSCs) such that a DSC receives a reference signal generates a signal based thereon. The DSC provides the signal to a first electrode via a single line and simultaneously senses it. Note the signal is coupled from the first electrode to the second electrode via a gap therebetween. The DSC generates a digital signal representative of the electrical characteristic of the first electrode. Processing module(s), when enabled, is/are configured to execute operational instructions (e.g., stored in and/or retrieved from memory) to generate the reference signal, process the digital signal to determine the electrical characteristic of the first electrode, and process the electrical characteristic of the first electrode to determine a distance between the first electrode and the second electrode, and generate capacitive image data representative of a shape of the capacitive imaging glove.

Abstract: A touch sensor system includes touch sensors, drive-sense circuits (DSCs), memory, and a processing module. A DSC drives a first signal via a single line coupling to a touch sensor and simultaneously senses, when present, a second signal that is uniquely associated with a user. The DSC processes the first signal and/or the second signal to generate a digital signal that is representative of an electrical characteristic of the touch sensor. The processing module executes operational instructions (stored in the memory) to process the digital signal to detect interaction of the user with the touch sensor and to determine whether the interaction of the user with the touch sensor compares favorably with authorization. When not authorized, the processing module aborts execution of operation(s) associated with the interaction of the user with the touch sensor. Alternatively, when authorized, the processing module facilitates execution of the operation(s).

Abstract: A method for execution by an input/output (IO) control module of an integrated circuit (IC) includes determining whether a programmable IO interface module is for dynamic or static use. The programmable IO interface module includes a configurable front-end module and a configurable back-end module. When the programmable IO interface module is for the dynamic use, determining to configure the programmable IO interface module as the dynamic use of a configuration of a plurality of configurations. The plurality of configurations includes a bidirectional interface, an input, an output, a concurrent drive and sense interface, and a concurrent transmit-receive interface. The method further includes configuring the front-end module in accordance with the configuration, configuring the back-end module in accordance with the configuration, and determining whether to change the configuration to another configuration of the plurality of configurations.

Abstract: A method for use in a touch-sensitive panel includes generating electric fields by applying drive signals to a plurality of row electrodes and a plurality of column electrodes included in the touch-sensitive panel, and sensing at least one information signal capacitively coupled to the touch-sensitive panel by detecting impedance changes associated with the plurality of row electrodes and the plurality of column electrodes. The impedance changes are converted to received data. Based on the received data a transmission pattern associated with the at least one information signal is determined. It is further determined that the transmission pattern corresponds to an identification code.