The present disclosure relates to a method and system for calibrating a musical device. In some embodiments, a method for calibrating a musical device includes: energizing an actuator to actuate a key using a force corresponding to a first intensity level; obtaining, from a sensor, a first sensor signal representing motion information of the key corresponding to application of the force; and calibrating the musical device based on the first sensor signal.

A button unit is suspended vertically and has a button body with an actuating surface and a shaft extending downwardly therefrom. An X-Y sensor unit is arranged below the button body for detecting X-Y positions on the actuating surface. The X-Y sensor unit has one opening such that the shaft can move therethrough. One transfer element is elastically suspended below the shaft and moved downwardly upon downward movement of the shaft. A Z sensor unit is arranged below the transfer element. The Z sensor unit has a detection element for detecting downward movement of the transfer element. The X-Y sensor unit may include a capacitive sensor. The Z sensor unit may include an inductive sensor, a capacitive sensor, or a magnetic sensor. The shaft and the extension may include a translucent material to form a light guide for illuminating the button body via a light source.

Provided is a switching device for an electronic musical instrument, comprising: a plurality of first electrodes that are adjacently arranged; a second electrode arranged between a pair of the plurality of first electrodes, and insulated from the plurality of first electrodes by a plurality of spaces; a rotatable actuator; and a conductive member configured to electrically connect the first electrodes and the second electrode according to rotation of the actuator. The plurality of spaces extend longitudinally in a first direction. The first direction is a direction between a rotational shaft direction of the actuator and a direction orthogonal to the rotational shaft direction.

A modular control device for controlling a device, a process or an application, comprises a plurality of control modules, a module housing base, comprising an electronic motherboard where a plurality of electrical base contact groups is formed, arranged as an array, each electrical base contact group implementing an electrical connection with the electrical module contacts, and an electronic output interface operatively connected to the base. Each control module is provided with releasable coupling means adapted to allow quick fitting and release of each control module on and off the base. The motherboard is configured to bring electrical power to each control module fitted on the base, recognize placement and orientation of each module fitted on the base, and transmit to the electronic output interface electrical control signals generated by the control modules. The electronic output interface converts electrical control signals into electrical output signals compatible with the device, process or application to be controlled.

An electronic musical instrument includes an instrument body and a plurality of keys, each of which has an operation surface operated by a player's finger is provided on an external surface of the instrument body. Among the plurality of keys, at least two keys are disposed to be adjacent to each other, and the operation surfaces of the at least two keys are configured to be inclined to descend toward between the at least two keys when viewed from a left-right direction of the electronic musical instrument.

A control device (1) for controlling the sound of an electric musical instrument has a tread plate (2) and a signal generator (3). The tread plate (2) is mounted pivotally about a first axis (4a) and is mounted pivotally about a second axis (4b). The signal generator is configured such that it generates a first electrical signal for controlling the sound and a second electrical signal for controlling the sound, the first electrical signal being the result of a rotation of the tread plate (2) about the first axis (4a) and the second electrical signal being the result of a rotation of the tread plate (2) about the second axis (4b). A control system comprises a control device of this type and the electric musical instrument.

A sensing system for a keyboard. Each key sensor comprises passive and active resonant circuits. The passive resonant circuit has a resonant frequency and the active resonant circuit excites the passive resonant circuit at the resonant frequency. A sensor driver drives the active resonant circuit with an RF drive signal, a multiplexing system multiplexes the drive signal such that simultaneously driven key sensors are separated by at least (k−1) keys, and a detector detects a level of RF signal from a driven key sensor for sensing a position and/or velocity of a key.

An operation detection device for a key operation of a keyboard device includes a conductive unit configured to be disposed on each of keys, a substrate configured to be disposed facing each of the keys in a pressing direction of the keys. The substrate is provided with a sensor including at least first and second coils, the sensor being configured to be disposed spaced from one key so that at least one of the first or second coil outputs a signal corresponding to a distance between the one key and the respective sensor. The operation detection device includes a detection unit configured to detect a displacement of the one key in at least one of a yaw direction or a roll direction based on signals output from the first and second coils during a key pressing stroke of the one key.

An electronic musical instrument includes: a plurality of keys; a detection part, detecting, by a plurality of detectors provided for each of the keys, a state of depression or release of the key; a musical tone controller, controlling a musical tone according to the state of the key detected by the detection part; a scanning part, sequentially executing detection of the state of the key by the detection part for each of the keys; an operation key acquisition part, acquiring the key that is in the middle of being depressed or being released based on a detection result obtained by the detection part; and a priority part, giving priority to the detection of the state of the key acquired by the operation key acquisition part by the detection part in the scanning part.

Different aspects of the invention implement a sensor module that can be configured as a keyboard module or as a pedal module, allowing to connect a plurality of keyboard and pedal modules to assemble a configuration to the user's liking, such as, for example, the usual configuration of an 87-key piano together with two pedals. The sensor module transmits information about detected key or pedal strokes to a computer application for playback, either aural or visual. At the same time, the sensor module allows, both in the keyboard module and pedal module configuration, to transmit the feeling of playing a real piano.