Mobile Terminal Voice Activation via Rotation Angle Detection

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Solution Overview

Problem

Existing methods for triggering voice input functions in mobile terminals are cumbersome and inefficient, requiring manual activation which can be difficult when using one hand.

Innovation Solution

A method and device that automatically activate the voice recognition function in a mobile terminal by detecting a specific rotation angle of the device, eliminating the need for manual key presses.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If manual clicking of voice function key is required, then the voice input function can be triggered, but user operations become cumbersome and voice input efficiency decreases

Engineering Contradiction:
Improveease of triggering voice inputVSAvoidvoice input efficiency
Core Design Contradiction:
Ease of operationVSProductivity

Solution Approach 1:

The system automatically detects device rotation and triggers voice input without requiring manual user action. The mobile terminal monitors its own orientation state and autonomously activates the voice recognition function when the rotation threshold is met, allowing the system to serve itself rather than requiring continuous user intervention.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent replaces the mechanical interaction of manually clicking a physical or on-screen button with an automated sensor-based detection system. The acceleration sensor detects device rotation mechanically, and the system translates this physical motion into automatic software activation, substituting manual mechanical operation with automated sensor processing.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Ease of operation

If manual clicking is required to activate voice input, then the function can be controlled, but the operation becomes difficult when holding the phone with one hand

Engineering Contradiction:
Improveease of activating voice functionVSAvoidadaptability to one-hand usage
Core Design Contradiction:
Ease of operationVSAdaptability or versatility

Solution Approach 1:

The system monitors its own rotation state automatically and triggers voice input without requiring the user to reach for or click a button. This self-activating mechanism works seamlessly whether the user is holding the phone with one hand or two hands, as no manual interaction is needed.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system changes its operational parameter from requiring manual button press to responding to device rotation angle. By using rotation angle as the trigger parameter instead of manual input, the system adapts to different usage scenarios including one-hand operation, where button clicking becomes difficult.

Inventive Principle:
Principle #35Parameter changes

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

This solution simplifies user operations, frees the user's hands, and enhances voice input efficiency by allowing automatic activation of the voice recognition function based on device rotation.

Implementation Method 1

a second acceleration of the mobile terminal in a second direction along the y-axis is acquired

Methodology Applied
Scientific EffectAcceleration detection: Accelerometer

Implementation Method 2

a first angular velocity of the mobile terminal in a first rotation direction with the x-axis as the rotation axis is acquired; acquiring the rotation angle of the mobile terminal in the first rotation direction with the x-axis as the rotation axis according to the first angular velocity

Methodology Applied
Scientific EffectAngular velocity measurement: Gyroscope

Data Source

PatentEP3677987B1Method and device for waking up voice recognition function in mobile terminal, and computer readable storage medium
Publication Date: 2025.03.05 BEIJING BAIDU NETCOM SCI & TECH CO LTD
  • EP3677987B1 patent drawingFigure 1~2
  • EP3677987B1 patent drawingFigure 3~5
  • EP3677987B1 patent drawingFigure 6~7

AI summary

The present disclosure provides a method and device for waking up a voice recognition function in a mobile terminal. The method includes: receiving (101) a trigger instruction of an input interface, and activating the input interface; acquiring (102) a rotation angle of the mobile terminal in a first rotation direction with an x-axis as a rotation axis, in which the x-axis is a widthwise direction of a screen of the mobile terminal; and activating (103) the voice recognition function when the rotation angle of the mobile terminal in the first rotation direction with the x-axis as the rotation axis is greater than or equal to a first trigger threshold. With the method, the voice recognition function is automatically activated according to the rotation angle of the mobile terminal in the first rotation direction of the x-axis.