Gesture Activation via Sensor Fusion and Time-Window Validation
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Solution Overview
Problem
Existing electronic devices face challenges in accurately activating functions due to complex input procedures, often resulting in unintended activation of functions, such as picking up an incoming call when a user intends to keep the device silent.
Innovation Solution
An electronic device equipped with a proximity sensor, motion sensor module, and processors that execute a method to detect near and far events, tilting angles, and angular velocities to validate specific gesture indices, allowing for precise activation of functions based on predefined ranges and time periods.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional touch screen input procedures are used, then the device can be operated, but the activation of functions is inaccurate and prone to errors
Solution Approach 1:
The patent replaces traditional mechanical touch screen input with a gesture recognition system that uses motion sensors (accelerometer, gyroscope) and proximity sensors to detect three-dimensional gestures in space. This substitution allows for more intuitive and accurate gesture recognition while simplifying the interaction model, as users can perform natural hand movements instead of navigating complex on-screen interfaces.
2Reliability
If simple gesture recognition is used, then the operation is intuitive, but the accuracy of function activation is insufficient
Solution Approach 1:
The patent combines multiple sensor modules (proximity sensor, motion sensor module including accelerometer and gyroscope) into an integrated gesture recognition system. By merging these sensors and processing their data together, the system achieves high reliability in function activation through multi-parameter gesture verification, while the complexity is managed through coordinated sensor fusion rather than isolated complex components.
Solution Approach 2:
The system implements feedback mechanisms where the processor continuously monitors sensor data, validates gestures against predefined criteria (tilting angles, angular velocities, time periods), and provides confirmation or correction to the user. This feedback loop ensures accurate function activation by verifying gestures meet specific thresholds before triggering actions.
3Measurement precision
If multiple sensor modules are integrated, then the gesture detection precision is improved, but the device complexity increases
Solution Approach 1:
The integrated sensor module serves multiple functions: the proximity sensor detects both near and far events, the motion sensor module measures both tilting angles and angular velocities. This multi-functionality allows the system to achieve high measurement precision across multiple gesture parameters while avoiding the need for separate dedicated sensors for each measurement, thereby managing device complexity.
Data Source
AI summary
An electronic device and an operating method thereof are provided. The operating method includes the following steps: setting whether a near index is valid or invalid in response to a near event or a far event of the device; setting a first tilting angle index valid in response to a tilting angle of the device staying within a first tilting angle range for a first predetermined time period; setting a first angular velocity index valid in response to an angular velocity of the device staying within a first angular velocity range for a second time period; setting a second tilting angle index valid in response to the tilting angle of the device staying within a second tilting angle range for a third predetermined time period and activating a function based on the near index, the first tilting angle index, the first angular velocity index and the second tilting angle index.