Abstract:
A system and method for dynamically reconfiguring a touch sensor controller that transmits signals to and receives signals from an electrode array of a capacitance sensitive touch sensor, wherein multiplexing of signals to and from the controller enables reconfiguration of input and output pins to thereby increase the functions and versatility of a touch sensor controller.
Abstract:
Systems and methods for providing a touch sensor include a dynamic suspension system to enable the touch sensor to emulate the tactile sensation that a user feels when using pushbutton switches, wherein a touch sensor is combined with at least one snap dome and a post inside the snap dome to keep the touch sensor rigid until the touch sensor is allowed to be displaced when a force is applied, and then the post is retracted or released to enable movement of the touch sensor and the snap dome are disclosed. Also disclosed are systems and methods for a clickable touchpad that enables the clickable function to be selectively locked or unlocked in accordance with detected or sensed conditions are disclosed.
Abstract:
A system and method that combines skimmer detection technology with a waterproof and sealed touch sensor keypad that may be used outdoors in wet environments, and is capable of being operated by a user wearing gloves.
Abstract:
A system and method for injecting a signal on a sense electrode in order to increase the security of the touch sensor if signals are capable of being intercepted by a probe, the injected signals being capable of creating a signal on the sense electrode that replicates the signal of an actual finger, creating a signal on a sense electrode that is equal to but opposite of an actual finger in order to cancel out the signal from the actual finger and therefore hide its presence, and create a pseudo random signal on sense electrodes so that it is difficult to correlate measurable signals on sense electrodes to actual finger position.
Abstract:
A system and method for providing a fluid flow strain gauge that may be mounted inside a pipe and connected to a base unit that uses capacitive or resistive technology to determine a direction and a rate of flow of a fluid through the pipe by measuring the force applied to the strain gauge by the flow of fluid.
Abstract:
A method for detecting multiple objects on a touchpad having a grid of orthogonal electrodes, wherein all drive electrodes are simultaneously stimulated, and then frequency or electrode coding is used to separate each electrode junction and produce a capacitance image of the touchpad surface in a single measurement sequence.
Abstract:
A system and method for disposing a secure conductive mesh into an encapsulant material of an integrated circuit package to thereby at least partially physically surround dies within the integrated circuit packages, circuit pathways and other components in order to physically protect secure data from being probed by a device that alters a capacitance signal from the secure mesh.
Abstract:
A system and method for using data from a single-layer touch sensor to track a single object by using a coded stimulus drive pattern in order to multiplex data onto a sense electrode, measure the sense electrode, and then demultiplexing information from the measurement of the sense electrode in order to obtain position information regarding at least one object on the touch sensor.
Abstract:
A method for detecting multiple objects on a touchpad having a grid of orthogonal electrodes, wherein all drive electrodes are simultaneously stimulated, and then frequency or electrode coding is used to separate each electrode junction and produce a capacitance image of the touchpad surface in a single measurement sequence.
Abstract:
Capacitive sensing electrodes may be placed in strategic locations inside, outside or inside and outside of a card reader, wherein touch sensor circuitry is then used to take mutual capacitance or self-capacitance measurements that are saved in non-volatile memory as a reference intrusion measurement that is not deleted when power is removed, wherein the reference intrusion measurement may then be used during subsequent intrusion measurements to determine if a skimming device has been disposed adjacent to the card reader, and if a skimming device is detected, appropriate action may be taken such as the automatic disabling of the card reader, the display of a message indicating that the card reader should not be used, or any other action that may prevent a financial card from being compromised.