Actuator unit, tactile sense presentation device, and housing module
AssigneeMurata Manufacturing Co., Ltd.
InventorShozo Otera
Life of this patent
Estimating the term…
Abstract
An actuator unit includes an actuator configured to cause a vibration by a vibrated member when a force is applied to the vibrated member and a first sensor configured to generate a first detection signal indicating a first relationship of a first physical quantity varying with time. The first physical quantity is related to the vibration of the vibrated member, a variation cycle of the first physical quantity changes based on a magnitude of the force applied to the vibrated member. The actuator unit also includes a processing circuit configured to process the first detection signal, extract a parameter indicative of the variation cycle of the first physical quantity, and estimate the magnitude of the force applied to the vibrated member based on the parameter.
Claims20
An actuator unit, comprising:
- an actuator configured to cause a vibration by a vibrated member when a force is applied to the vibrated member;
- a first sensor configured to generate a first detection signal indicating a first relationship of a first physical quantity varying with time, the first physical quantity being related to the vibration of the vibrated member, a variation cycle of the first physical quantity changing based on a magnitude of the force applied to the vibrated member;
- and
- a processing circuit configured to process the first detection signal, extract a parameter indicative of the variation cycle of the first physical quantity, and to estimate the magnitude of the force applied to the vibrated member based on the parameter.
An actuator unit, comprising:
- an actuator configured to cause a vibration by a vibrated member when a force is applied to the vibrated member;
- a first sensor configured to generate a first detection signal indicating a first relationship of a first physical quantity varying with time, the first physical quantity being related to the vibration of the vibrated member, a variation cycle of the first physical quantity changing based on a magnitude of the force applied to the vibrated member;
- and
- a processing circuit configured to output force data indicating the magnitude of the force based on the first detection signal, the force data changing when the variation cycle of the first physical quantity changes.
A tactile sense presentation device, comprising:
- a vibrated member;
- an actuator configured to cause a vibration by the vibrated member when a force is applied to the vibrated member;
- a first sensor configured to generate a first detection signal indicating a first relationship of a first physical quantity varying with time, the first physical quantity being related to the vibration of the vibrated member, a variation cycle of the first physical quantity changing based on a magnitude of the force applied to the vibrated member;
- and
- a processing circuit configured to process the first detection signal, extract a parameter indicative of the variation cycle of the first physical quantity, and estimate the magnitude of the force applied to the vibrated member based on the parameter.
Dependencies are inferred from the claim text.