Operation Device Synchronized Tactile and Auditory Feedback
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Solution Overview
Problem
Conventional tactile and auditory sense presentation devices separate actuators for vibration and sound output, leading to a mismatch between tactile and auditory sensations due to different device positions, resulting in an unnatural operation experience.
Innovation Solution
An operation device with a movable part having an operating surface, a vibration exciter attached to excite the part in both the X-direction (for tactile sensation) and Z-direction (for sound generation), and elastic supports to elastically support the movable part, allowing for synchronized tactile and auditory feedback.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If separate actuators are used for vibration and sound output, then the functions are clearly divided, but the positions of the actuators differ, causing a mismatch between tactile and auditory sensations
Solution Approach 1:
The patent combines the vibration exciter and sound output unit into a single integrated actuator that can generate both tactile vibrations and acoustic sounds. This merging eliminates the position mismatch between separate actuators and enables synchronized tactile and auditory feedback from the same location on the operating surface.
Solution Approach 2:
The actuator is designed with multi-functionality, serving both as a vibration generator for tactile feedback and as a sound output unit for auditory feedback. This universal design allows a single component to fulfill multiple sensory presentation functions, resolving the contradiction between functional division and synchronization accuracy.
2Manufacturing precision
If a single actuator is used for both vibration and sound, then tactile and auditory sensations are synchronized, but the device complexity increases
Solution Approach 1:
The patent employs dynamic control of the actuator to selectively generate tactile vibrations or acoustic sounds based on operational requirements. The controller dynamically adjusts the actuator's operation mode, enabling it to function as a vibration source, sound source, or both simultaneously, thereby managing complexity through dynamic rather than static design.
Solution Approach 2:
The actuator's operational parameters are changed to achieve different functions. By adjusting frequency, amplitude, and excitation mode parameters, the same actuator structure can produce tactile vibrations at certain parameters and acoustic sounds at others, reducing overall device complexity while maintaining multi-functionality.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The device provides a natural operation feeling by synchronizing tactile and auditory sensations, reducing noise interference and enhancing the realism of simulated button presses or other operations.
Implementation Method 1
a vibration exciter attached to the movable part at a position other than the operating surface, and configured to excite the movable part in a first direction along the operating surface
Implementation Method 2
excite the movable part in a second direction intersecting the operating surface; generates a sound from the operating surface when excited in the second direction
Implementation Method 3
an elastic support, provided between the movable part and the base part, and configured to elastically support the movable part with respect to the base part
Data Source
AI summary
An operation device includes a movable part having an operating surface on which a contact operation is performed by an living body, a vibration exciter attached to the movable part at a position other than the operating surface, and configured to excite the movable part in a first direction along the operating surface, and in a second direction intersecting the operating surface, a base part, and an elastic support, provided between the movable part and the base part, and configured to elastically support the movable part with respect to the base part. The movable part provides a tactile sensation to the living body making the contact operation when excited in the first direction by the vibration exciter, and generates a sound from the operating surface when excited in the second direction by the vibration exciter.