摘要:
A system 100, for determining the velocity of a hammer 120 of a keyboard instrument, with a light transceiver 140 and processing circuitry 160. The light transceiver 140 being configured to transmit a light signal to a hammer 120 to measure a hammer velocity, receive a reflected light signal from the hammer 120 indicative of the velocity of the hammer 120 and send an electrical signal to the processing circuitry 160, where the electrical signal is based on the reflected light signal from the hammer 120. The processing circuitry 160 being configured to receive and process the electrical signal so that a time interval between the electrical signal passing through a first trigger point and a second trigger point and the velocity of the hammer 120 can be determined.
摘要:
A support assembly according to one embodiment of the present invention is provided, the support assembly including a jack rotatably supported by a support; a repetition lever rotatably supported with respect to the support; a protrusion disposed at an intersecting portion of the jack and the repetition lever; and a protrusion receiving portion for receiving the protrusion; wherein the protrusion receiving portion defines a movable range of the protrusion and limits a rotation range of the jack.
摘要:
A controller configured to interactively control images, such as visual images including video images in interactive-multi-media including video games and the like. In one preferred embodiment, a controller is configured to generate a plurality of electromagnetic beams, whereby the user may selectively interrupt one or more of the electromagnetic beams to generate, control, or manipulate a visual image, rendered on a display. Advantageously, the user may control the visual image without having to physically depress buttons, to control one or more visual subjects.
摘要:
A harp comprising a body, a set of strings attached to the body, an optical pickup to generate an analog signal produced by the vibration of a string within the set of strings, at least one circuit board to convert the analog signals to a corresponding digital signal, wherein the digital signal is then processed.
摘要:
Musical instruments are described including a first portion designed to be operated by one hand of a player and a second portion designed to be operated by the other hand. The two portions include means within each for sensing hand and/or finger activity, position or movement, and one of the portions is adapted to produce an output signal corresponding to the music being played by the user. The two portions may be physically connected together or they may be separate, each including its own power supply to enable it to operate, and for the two portions to communicate with one another. The invention is of particular value in the construction of practice instruments which do not need to include a sound box, and can thus be very compact, especially if the two parts, such as a fingerboard (20) and a body (82) with strings (83) mounted on it are connected by a telescopic neck (60A).
摘要:
Systems and methods for detecting a finger position on the playing surface of an instrument are described. A sensor module located at a selected location of the playing surface emits light that is reflected or diffused by a finger or an object near the selected location. The reflected or diffused light is sensed by the sensor module, which generates a signal indicative of the amount of light detected. Based on the signal, a location of the finger or object is determined. When the finger placement corresponds to a specific note or effect, a digital signal is generated indicating the note or effect.
摘要:
Systems and methods for creating and presenting sensory stimulating content. One aspect of the invention allows a composer to associate content with one or more triggers, and to define behavior characteristics which control the functioning of each trigger. Another aspect of the invention provides a variety of user interfaces through which a performer can cause content to be presented to an audience.
摘要:
According to some embodiments of the present invention, there is provided a device, system and method for interfacing with an electronic appliance, including a sound generator. According to some embodiments of the present invention, there is provided an array of pulsed radiation emitters and/or sensors, wherein each emitter/sensor of the array, or any combination of emitters/sensors, may be associated with a different set of appliance control signals.
摘要:
An optical modulator is hung from a key moved on a key trajectory so as to be moved together with the key, and a light beam, which is stationary with respect to a key bed, is radiated through the optical modulator; a large number of miniature refractors are formed on the light output surface of the optical modulator, and the density of miniature refractors per unit area is varied in a direction in which the optical modulator is moved together with the key so that the current key position is converted to the amount of light passing through the optical modulator; since the miniature refractors and other portions of optical modulator have a unitary structure, a molding process is used for the optical modulator, and the molding process make the production cost low.
摘要:
An electronic keyboard instrument having a keyboard provided with a plurality of keys, a first and a second switches provided corresponding to each key of the keyboard and being sequentially turned on at a time interval corresponding to a key depression speed of the keyboard, a counting unit for counting a count value corresponding to the time interval during which the first and the second switches are sequentially turned on, a correcting unit for correcting the count value or a value corresponding to the count value based on a variation of the time interval, and a velocity conversion unit for converting the corrected value into a velocity, is provided.