Abstract: A device having a flexible touch screen display configured to display images in at least a first touch area and a second touch area. At least a portion of the second touch area is located on an edge or side surface of the device. A first plurality of touch sensitive column electrodes and a plurality of row electrodes are integrated into the first touch area, and a second plurality of column electrodes and the plurality of row electrodes are integrated into the second touch area of the flexible display. The device further includes a plurality of drive-sense circuits that drive sensor signals on the electrodes. A processing module senses, based on the sensor signals, an electrical characteristic of at least one row electrode and at least one column electrode of the first touch area or the second touch area and determines, based on the electrical characteristic, a proximal touch to at least one of the first touch area or the second touch area.

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.

Abstract: A Hall effect sensor system includes a Hall effect sensor and a drive-sense circuit (DSC). The Hall effect sensor includes an input port to receive a DC (direct current) current signal and generates a Hall voltage based on exposure to a magnetic field. The DSC generates the DC current signal based on a reference signal and drives it via a single line that operably couples the DSC to the Hall effect sensor and simultaneously to sense the DC current signal via the single line. The DSC detects an effect on the DC current signal corresponding to the Hall voltage that is generated across the Hall effect sensor based on exposure of the Hall effect sensor to the magnetic field and generates a digital signal representative of the Hall voltage.

Abstract: A foot force detection system includes variable capacitors, drive sense circuits, a processing module, and a power unit. A drive sense circuit supplies a reference signal to the variable capacitor. It then generates a sensed signal regarding a characteristic of the variable capacitor based on the reference signal. It then converts the sensed signal into a digital signal. The processing module generates a digital impedance value for the variable capacitor based on the digital signal and writes the digital impedance value in memory. The power unit include a battery and a power harvesting circuit, where the battery and/or the power harvesting circuit provide power for the foot force detection system.

Abstract: A method includes determining, by a processing module of a foot force detection system, an athletic mode. The method further includes, when the athletic mode is active, determining, by the processing module, an athletic burst mode. The method further includes determining, by the processing module, a sampling rate for the foot force detection system based on the athletic burst mode for sampling foot force data.

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.

Abstract: An analog to digital conversion circuit of a touch screen computing device includes a plurality of analog to digital converter circuits operable to convert a plurality of analog signals into a plurality of digital signals at an oversampling rate, a digital decimation filtering module operable to convert the plurality of digital signals into a plurality of digital filtered signals at a first output rate, a coefficient processor operable to generate real component coefficients and imaginary component coefficients of a filtering function at a plurality of frequencies, a first bandpass filter circuit operable to produce first affect values at known frequencies of the plurality of frequencies, and a second bandpass filter circuit operable to produce second affect values at selected frequencies of the plurality of frequencies.

Abstract: A pen for interacting with a touch screen of a computing device includes an alternating current coupling circuit and a sense-regulation circuit. The alternating current coupling circuit receives a sense signal from the touch screen. The alternating current coupling circuit transmits a transmit signal to the touch screen. The sense-regulation circuit receives the sense signal from the alternating current coupling circuit. The sense-regulation circuit receives a representation of transmit data. The sense-regulation circuit generates a comparison signal based on the sense signal and the representation of the transmit data. The sense-regulation circuit converts the representation of the transmit data into the transmit signal.

Abstract: A touch sensor device includes a first panel, a second panel, and a drive-sense circuit (DSC). The first panel that includes first electrodes arranged in a first direction and second electrodes arranged in a second direction. The second panel includes third electrodes arranged in a third direction and fourth electrodes arranged in a fourth direction. The DSC is operably coupled via a single line to a coupling of a first electrode of the first electrodes and a first electrode of the third electrodes. The DSC is configured to provide the signal, which is generated based on a reference signal, via the single line to the coupling and simultaneously to sense the signal via the single line. The DSC generates a digital signal representative of the at least one electrical characteristic associated with the first electrode of the first electrodes and/or the first electrode of the third electrodes.

Abstract: A handheld device includes an imaging device having: pixel sensors arranged in a two-dimensional array that respond to incident light; drive-sense circuits, wherein each of the plurality of drive-sense circuits is coupled to a corresponding one of the pixel sensors and generates sensed signals, wherein each of the drive-sense circuits includes: a first conversion circuit configured to convert a receive signal component of a sensor signal corresponding to the corresponding one of the pixel sensors into a corresponding one of the sensed signals; and a second conversion circuit configured to generate, based on the corresponding one of the sensed signals, a drive signal component of the sensor signal corresponding to the one of the pixel sensors.

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.

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.

Abstract: A batteryless wireless sensor system includes a data acquisition system, a radio frequency (RF) transceiver, and a batteryless wireless sensor device. The RF transceiver is in communication with the data acquisition system, transmits a RF signal, and receives sensor data and provide the sensor data to the data acquisition system. The batteryless wireless sensor device includes a RF transmitter, an analog to digital converter (ADC), and a sensor. The batteryless wireless sensor harvests energy from the RF signal and generates a DC signal based on the energy harvested from the RF signal, powers up and operates the ADC and the sensor based on the DC signal, and generates sensor data. The batteryless wireless sensor then transmits the sensor data via the RF transmitter to the RF transceiver. In certain examples, the ADC is implemented as a current mode ADC.

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/0 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 foot force detection system includes first and second shoe force detection units. The first shoe force detection unit includes pressure sensors, a processing module, and a communication unit. The pressure sensors are operably coupled to produce first force data. The processing module is operably coupled to produce a first digital representation of the first force data. The second shoe force detection unit includes its own pressure sensors, a processing module, and a communication unit. The first and second shoe force detection units communicate with each other via the communication units.

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 touch screen display includes a plurality of electrodes configured to facilitate touch sense functionality based on electrode signals having a drive signal component and a receive signal component, a plurality of drive-sense circuits coupled to at least some of the plurality of electrodes to generate a plurality of sensed signals, and a processing module. The processing module is configured to cause the touch screen display to receive the plurality of sensed signals. A stream of capacitance image data associated with the plurality of cross points is generated based on the plurality of sensed signals. The stream of capacitance image data is processed to detect a touchless gesture.

Abstract: An impedance sensing circuit includes first and second current sources and first and second bias current sources that are appropriately coupled to first and second resistors. The impedance sensing circuit also includes a comparator that compares a first voltage based on the first terminal of the first resistor to a second voltage based on the first terminal of the second resistor to generate a comparator output signal. Either the comparator output signal or a digital signal based on the comparator output signal operates to regulate the current signals output from the first and second current sources so that the first voltage is same as the second voltage. The comparator output signal and the digital signal is representative of a difference between the first voltage and the second voltage that is based on an impedance difference between the first resistor and the second resistor.

Abstract: A programmable drive-sense unit (DSU) includes a drive-sense circuit operably coupled to a load, wherein the drive-sense circuit is configured to drive and simultaneously to sense the load via a single line, and produce an analog output based on the sensing the load. The programmable DSU also includes an analog to digital circuit operably coupled to the drive-sense circuit, where the analog to digital circuit is operable to generate a digital output based on the analog output and in accordance with one or more programmable operational parameters to achieve one or more of load sensing objectives associated with the sensing of the load and data processing objectives associated with the sensing of the load.

Abstract: A force detection system includes first and second sets of pressure sensors, memory, and a processing module. The first set of pressure sensors are in an insole of a shoe and the second set of pressure sensors are in an outsole of a shoe. The processing module receives first data regarding the first set of pressure sensors and generates a first digital representation of the first data. The processing module also receives second data regarding the second set of pressure sensors and generates a second digital representation of the second data. The processing module also writes the first and second digital representations to the memory.