A physical disturbance sensor includes a plurality of piezoresistive elements configured in a resistive bridge configuration. A signal transmitter is electrically connected to the physical disturbance sensor and configured to send an encoded signal to the piezoresistive elements of the resistive bridge configuration. A signal receiver is electrically connected to the piezoresistive elements and configured to receive a signal from the physical disturbance sensor. The received signal from the physical disturbance sensor is correlated with the sent encoded signal in determining a measure of physical disturbance.

A vending machine interface includes a front panel, a product selection panel, and a piezoelectric element. The front panel bends in a normal direction when being pushed by a user. The product selection panel is disposed facing the front panel. A detection element is attached to the product selection panel and configured to detect bending of the front panel.

It is an object to provide a device that may provide haptic effect. According to an embodiment, a device comprises a haptic element matrix comprising haptic effect elements, wherein the haptic effect elements are electrically arranged into rows and columns and a driving circuit. The driving circuit may be configured to, in a first phase drive an addressed column of the haptic element matrix with a first voltage; drive an addressed row of the haptic element matrix with a second voltage, leave at least one column of the haptic element matrix to a floating voltage while driving the addressed column and the addressed row; and leave at least one row of the haptic element matrix to a floating voltage while driving the addressed column and the addressed row. The device may reduce crosstalk between the haptic effect elements. A device, a method, and a computer program product is provided.

It is an object to provide a device that may provide haptic effect. According to an embodiment, a device comprises a haptic element matrix comprising haptic effect elements, wherein the haptic effect elements are electrically arranged into rows and columns and a driving circuit. The driving circuit may be configured to, in a first phase drive an addressed column of the haptic element matrix with a first voltage; drive an addressed row of the haptic element matrix with a second voltage, leave at least one column of the haptic element matrix to a floating voltage while driving the addressed column and the addressed row; and leave at least one row of the haptic element matrix to a floating voltage while driving the addressed column and the addressed row. The device may reduce crosstalk between the haptic effect elements. A device, a method, and a computer program product is provided.

A haptic keyboard of an information handling system comprising a coversheet to identify keys of the haptic keyboard, a contact foil and a piezoelectric element to receive an applied mechanical stress at a first key of the coversheet and generate an electric actuation signal. A processor executing instructions of a haptic smart typing assistance system to detect and anticipate a next letter of a word being typed and a controller to receive an instruction of the anticipated next letter and increasing force required actuate at least one key for a letter adjacent to the anticipated next letter, and to send a response haptic feedback control signal to the piezoelectric element to cause the piezoelectric element to generate a first haptic feedback at the first key if the anticipated next letter is selected and to generate a second haptic feedback if a typographical error is detected.

Provided is a metal touch sensing apparatus in which recognition performance thereof is improved, a plurality of touch parts are successively manipulated to enter into a specific mode, thereby preventing a refrigerator from being malfunctioned, and touch sensitivity of the refrigerator to be touched for the manipulation is visually adjusted, and a home appliance including the touch apparatus and a method for controlling the same.

An apparatus and method wherein the apparatus comprises; a sensor arrangement comprising a plurality of sensor cells wherein a sensor cell comprises a transistor and a sensor coupled to the transistor; first selection circuitry configured to sequence a subset of sensor cells to which a gate input signal is provided, wherein the gate input signal is provided to the gate of the transistors within the sensor cells; second selection circuitry configured to sequence a subset of sensor cells from which an output signal is received; sensing signal circuitry configured to provide a sensing signal, wherein the sensors are provided between the sensing signal circuitry and the second selection circuitry such that the output signal provides an indication of the impedance of the sensors.

A physical disturbance sensor includes a plurality of piezoresistive elements configured in a resistive bridge configuration. A signal transmitter is electrically connected to the physical disturbance sensor and configured to send an encoded signal to the piezoresistive elements of the resistive bridge configuration. A signal receiver is electrically connected to the piezoresistive elements and configured to receive a signal from the physical disturbance sensor. The received signal from the physical disturbance sensor is correlated with the sent encoded signal in determining a measure of physical disturbance.

Provided are a touch sensor assembly that is maintained in a state in which the touch sensor is closely attached to an exterior member to accurately detect displacement when touch manipulation is performed to improve a recognition rate, a refrigerator door including a touch sensor assembly that is capable of preventing a sensor control part from being damaged by static electricity and having an improved front outer appearance, and a method for manufacturing the refrigerator door.

An appliance that includes: a front panel having a touch point; a touch board including: a first side attached to a location on a rear surface of the front panel, the location corresponding to the touch point; a second side opposite to the first side; a pressing portion; and one or more holes defined around the pressing portion and configured to enable an elastic movement of the pressing portion; a holder that is attached to the second side of the touch board, the holder having a receiving portion; a piezo disc configured to be inserted in the receiving portion of the holder and contact the pressing portion; a guide board having a seating hole configured to receive the holder and the piezo disc; and a first adhesive member attached to the first side of the touch board and configured to attach to the rear surface of the front panel.