Abstract: In one embodiment, a method includes modifying a voltage at a capacitance of a touch sensor to a first voltage level. The method also includes modifying the voltage at the capacitance to a second voltage level, resulting in a first current. The method also includes modifying a voltage at an integration capacitor to a charging-voltage level based on the first current. The method also includes determining whether a touch input to the touch sensor has occurred based on the charging-voltage level.

Abstract: In one embodiment, an apparatus comprises a pulse driver configured to generate an electrical pulse for transmission to a capacitive touch sensor. The apparatus further comprises a timing circuit configured to hold a first switch closed and a second switch open during a first edge of the electrical pulse, and hold the second switch closed and the first switch open during of a second edge of the electrical pulse. The apparatus further comprises a first capacitor configured to receive a first amount of charge that is indicative of a capacitance of an area of the capacitive touch sensor and a second capacitor configured to discharge a second amount of charge that is indicative of the capacitance of the area of the capacitive touch sensor. The apparatus further comprises a differential output configured to provide a measure of the voltage difference between the first capacitor and second capacitor.

Abstract: A first signal from a first sense line of a touch sensor is received. A second signal from a second of the touch sensor is received. The first signal is inverted. The inverted first signal and the second signal are summed to produce a differential signal. The differential signal is output to a touch sensor controller.

Abstract: In one embodiment, a touch sensor having automatically adjustable gain control includes an amplifier coupled to a first sense line of a touch sensor. The amplifier receives a signal from the first sense line and scales the signal by an amount of gain. An analog-to-digital (ADC) converter receives the signal from the amplifier and converts the signal from an analog signal to a first digital signal. A processor receives the first digital signal from the ADC and, without user input, automatically calculates the amount of gain for scaling the signal based on the received first digital signal. A feedback loop transmits the amount of gain to the amplifier for applying the amount of gain to the signal.

Abstract: A first signal from a first sense line of a touch sensor is received. A second signal from a second of the touch sensor is received. The first signal is inverted. The inverted first signal and the second signal are summed to produce a differential signal. The differential signal is output to a touch sensor controller.

Abstract: In one embodiment, a method includes modifying a voltage at a capacitance of a touch sensor to a first voltage level. The method also includes modifying the voltage at the capacitance to a second voltage level, resulting in a first current. The method also includes modifying a voltage at an integration capacitor to a charging-voltage level based on the first current. The method also includes determining whether a touch input to the touch sensor has occurred based on the charging-voltage level.

Abstract: In one embodiment, an apparatus comprises a pulse driver configured to generate an electrical pulse for transmission to a capacitive touch sensor. The apparatus further comprises a timing circuit configured to hold a first switch closed and a second switch open during a first edge of the electrical pulse, and hold the second switch closed and the first switch open during of a second edge of the electrical pulse. The apparatus further comprises a first capacitor configured to receive a first amount of charge that is indicative of a capacitance of an area of the capacitive touch sensor and a second capacitor configured to discharge a second amount of charge that is indicative of the capacitance of the area of the capacitive touch sensor. The apparatus further comprises a differential output configured to provide a measure of the voltage difference between the first capacitor and second capacitor.

Abstract: In one embodiment, an apparatus includes a touch sensor including drive electrodes. The apparatus also includes sense electrodes arranged along a first axis and a second axis. The first and second axes are substantially perpendicular to each other. The apparatus also includes one or more computer-readable non-transitory storage media coupled to the touch sensor that embody logic that drives all the drive electrodes substantially simultaneously with a common drive signal.

Abstract: In one embodiment, an apparatus includes a touch sensor including drive electrodes. The apparatus also includes one or more computer-readable non-transitory storage media coupled to the touch sensor that embody logic that drives all the drive electrodes substantially simultaneously with a common drive signal.

Abstract: A system, computer-readable storage medium, and computer-implemented method for determining a maturity level for a business process. Responses to questions relating to a business process for a business are received. A first business process maturity level is determined using the responses to the questions. Performance statistics are obtained from a database including historical data related to the business process. A second business process maturity level is determined using the performance statistics. A weight factor is determined using the first business process maturity level and the second business process maturity level, the weight factor corresponding to a correlation between the first business process maturity level and the second business process maturity level. A weighted business process maturity level is calculated for the business process using the first business process maturity level and the weight factor.