Roland Corporation

Ryohei Kanayama

Hitoshi Sato

Fumihiko Miura

Yuji Terada

Shigeru Sawada

Yasunori Nagaoka

Kentaro Mori

Yoshifumi Sakai

Kotaro Nomura

A displacement amount detecting apparatus is provided and includes: transmission member, transmitting a displacement on one end side thereof to a displacement on the other end side thereof; a sensor, disposed to face the other end side of the transmission member, and configured to output a value according to a distance between the sensor and the other end side of the transmission member; a calculation device, calculating a value for indicating the distance based on the value output by the sensor and a reference value; and a correction device, correcting the reference value. When the one end side is displaced in a first direction, the other end side is displaced in a second direction opposite to the first direction and away from the sensor. The correction device is configured to correct the reference value based on the value for indicating the distance calculated by the calculation device.

Displacement amount detecting apparatus and electronic wind instrument

To provide an electronic wind instrument capable of accurately detecting the amount of rotation of a transmission member. An electronic wind instrument whereby contact with an optical sensor by a flat surface of a rear section can be suppressed even when at least a prescribed amount of a reed is bitten, as a result of the flat surface rotating in a direction away from the optical sensor when the rear section of the transmission member rotates in conjunction with displacement of the reed. As a result, the spacing between the facing flat surface and the optical sensor can be set comparatively narrowly in the initial state and the detection sensitivity at the optical sensor increased, thereby enabling accurate detection of the rotation amount of the transmission member (the amount of the reed that is bitten).

Electronic wind instrument and manufacturing method thereof

Electronic wind instrument

The electronic wind instrument () includes an instrument body () in which a through-hole leading into an internal space () opens on an outer surface (), an operation piece () attached to the instrument body () at a position of a through-hole () and pushed down toward the internal space (), and an electronic component disposed in the internal space (). The electronic component includes a push-down sensor () that detects that the operation piece () is being pushed down, and the outer surface () of the instrument body () comprises an outer wall () that is provided around the through-hole () and that faces toward the through-hole (), an inner wall () that is provided nearer to the through-hole () than the outer wall () and that faces toward the outer wall (), and a groove bottom () connecting the outer wall () and the inner wall () together.

Electronic wind instrument and method for manufacturing electronic wind instrument

To provide an electronic wind instrument capable of accurately detecting the amount of rotation of a transmission member. During an electronic wind instrument performance by a performer, external light (such as light from lighting) may easily shine on the upper surface side of an instrument main body. However, the light-receiving section of an optical sensor faces toward the bottom surface side of the instrument main body therefore external light from the upper surface side of the instrument main body can be prevented from reaching the light-receiving section of the optical sensor. As a result, erroneous detection of the external light by the optical sensor can be suppressed therefore the rotation amount of a transmission member can be accurately detected by the optical sensor.

Electronic wind instrument (electronic musical instrument) and manufacturing method thereof

Percussion detecting device

Electronic musical instrument

A pick-up system is provided that can be suitably used irrespective of the type of the guitar by means of an arrangement of a plurality of pick-up coils that can appropriately conform to the curvature of the strings that are arranged in a stringed instrument. In accordance with the pick-up system of the present invention, it is possible to adjust the curvature of the roof surfaces of the pick-up coils in conformance with the bending of a pick-up board on which the pick-up coils have been mounted. Therefore, a distance that is always an appropriate distance can be maintained between each of the pick-up coils that are arranged on the pick-up board and each of the strings by means of the suitable adjustment of the curvature of the pick-up board. Accordingly, there is the advantageous result that the vibrations of each of the strings can be appropriately detected irrespective of the type of guitar.

Growing community of inventors

Shizuoka, Japan

Ryohei Kanayama