Operation-position detector and application thereof
AssigneeMurata Manufacturing Co., Ltd.
InventorsYuki Maeda, Kazuyoshi Nakaya
Life of this patent
Estimating the term…
Abstract
An operation-position detector having a tube that allows an ultrasonic signal to propagate therethrough. The tube has a plurality of holes capable of being selectively closed or opened by an operation and is provided with an ultrasonic transmitter-receiver arranged at a first end thereof. A signal processor drives the ultrasonic transmitter-receiver and causes an ultrasonic signal to propagate through the inside of the tube, receives a reflection signal corresponding to a closed or open state of each of the holes, and detects the state of each hole on the basis of the reflection signal, thereby detecting the operation position of an operation conducted by an operator.
Claims12
An operation-position detector comprising:
- a tube having a plurality of holes disposed along a side thereof, the plurality of holes capable of being selectively closed or opened;
- an ultrasonic transmitter-receiver arranged at an end of the tube and configured to transmit an ultrasonic wave and receive an ultrasonic reflection signal that propagates through the tube and is reflected in the tube to obtain a reception signal;
- and
- ultrasonic-signal processor that drives the ultrasonic transmitted-receiver to transmit the ultrasonic wave and detects an open or closed position of at least one of the plurality of holes on the basis of the reception signal,
- wherein each of the plurality of holes is provided with a deformable cover.
An operation-position detector application comprising:
- an operation-position detector comprising:
- a tube having a plurality of holes disposed along a side thereof, the plurality of holes capable of being selectively closed or opened;
- an ultrasonic transmitter-receiver arranged at an end of the tube and configured to transmit an ultrasonic wave and receive an ultrasonic reflection signal that propagates through the tube and is reflected in the tube to obtain a reception signal;
- and
- ultrasonic-signal processor that drives the ultrasonic transmitted-receiver to transmit the ultrasonic wave and detects an open or closed position of at least one of the plurality of holes on the basis of the reception signal;
- and
- means for generating a sound of a scale associated with the hole in accordance with the detected position of the hole.
An operation-position detector application comprising:
- an operation-position detector comprising:
- a tube having a plurality of holes disposed along a side thereof, the plurality of holes capable of being selectively closed or opened;
- an ultrasonic transmitter-receiver arranged at an end of the tube and configured to transmit an ultrasonic wave and receive an ultrasonic reflection signal that propagates through the tube and is reflected in the tube to obtain a reception signal;
- and
- ultrasonic-signal processor that drives the ultrasonic transmitted-receiver to transmit the ultrasonic wave and detects an open or closed position of at least one of the plurality of holes on the basis of the reception signal;
- and
- means for generating a key code associated with the hole in accordance with the detected position of the hole.
An operation-position detector application comprising:
- an operation-position detector comprising:
- a tube having a plurality of holes disposed along a side thereof, the plurality of holes capable of being selectively closed or opened;
- an ultrasonic transmitter-receiver arranged at an end of the tube and configured to transmit an ultrasonic wave and receive an ultrasonic reflection signal that propagates through the tube and is reflected in the tube to obtain a reception signal;
- and
- ultrasonic-signal processor that drives the ultrasonic transmitted-receiver to transmit the ultrasonic wave and detects an open or closed position of at least one of the plurality of holes on the basis of the reception signal;
- and
- means for producing representation output that indicates correctness or incorrectness associated with the hole in accordance with the detected position of the hole.
Dependencies are inferred from the claim text.