Gesture Input System with Continuous Tactile Feedback
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Solution Overview
Problem
Existing gesture input systems do not provide tactile feedback to users, making it difficult for them to perceive the direction and distance of hand movements during virtual input operations, leading to reduced user convenience.
Innovation Solution
A gesture input system that includes a sensor to detect body motions, a tactile feeling presenting apparatus to provide continuous tactile feedback at a base point, and a control apparatus that sets a chasing point and produces input signals based on the relative positional variation between the chasing point and the base point, ensuring the user can accurately perform gesture operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a gesture input system uses air flow to provide resistance at an input acceptance position, then the user can learn the position inside the space, but the user cannot perceive the move direction and move distance of the hand during operation
Solution Approach 1:
The patent introduces tactile feedback through a tactile feeling presenting apparatus that continuously presents tactile sensations at a base point corresponding to the input acceptance position. This feedback mechanism provides the user with continuous information about hand position, move direction, and move distance by varying the tactile feeling according to the relative positional relation between the chasing point (hand position) and base point, thereby resolving the information loss problem while maintaining position perception capability
Solution Approach 2:
The patent introduces a tactile feeling as an intermediary between the user's hand motion and the system's position detection. The tactile feeling presenting apparatus acts as a mediator that translates the relative positional relation between chasing point and base point into perceptible tactile sensations, enabling the user to perceive motion information without directly seeing or hearing it
2Ease of operation
If the system provides continuous tactile feedback at the base point during input acceptable state, then the user can perceive reference position and motion information, but the device complexity increases
Solution Approach 1:
The tactile feeling presenting apparatus is designed to perform multiple functions: it continuously presents tactile feedback during the input acceptable state, indicates the base point position, and provides motion information through variation of tactile sensations. This multi-functionality reduces the need for separate feedback mechanisms, thereby limiting the increase in device complexity while improving ease of operation
Solution Approach 2:
The system dynamically adjusts the tactile feeling presentation based on the relative positional relation between the chasing point and base point. The tactile feedback is continuously varied in real-time according to hand motion, providing adaptive information about position and motion without requiring complex static structures
Data Source
AI summary
A gesture input system (100) that accepts a user operation based on a motion of a portion of the body of a user and that produces an input signal indicating a direction of the motion and/or an amount of the motion of the portion of the body, includes a sensor (1) that detects the motion of the portion of the body of the user, a tactile feeling presenting apparatus (3) that presents a tactile feeling at a base point (61) set inside a space, and a control apparatus (2) that sets a chasing point on the portion (50) of the body detected by the sensor and that produces the input signal based on a variation of the relative positional relation between the chasing point and the base point. The tactile feeling presenting apparatus (3) continuously presents the tactile feeling at the base point (61) during a time period for the gesture input system to be in an input acceptable state where the gesture input system is able to accept the user operation.