Sensor-Based Gesture Control for Wearable Devices

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Solution Overview

Problem

Complex operations using buttons or touch devices are difficult, especially in small apparatuses, and a simpler human interface is needed to diversify operation inputs without burdening the user.

Innovation Solution

An information processing apparatus with a controller unit that detects trigger operations using first sensor information and recognizes gesture operations based on second sensor information, allowing for diverse operation inputs by combining detected trigger operations and recognized gestures, with the ability to differentiate between single and continuous trigger operations and include values based on trigger operation duration.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If buttons or touch devices are used for operation input, then the apparatus can perform complex operations, but the interface becomes difficult to use and burdensome for the user

Engineering Contradiction:
Improveoperation input diversityVSAvoiduser burden
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The patent replaces mechanical buttons and touch devices with sensor-based detection systems that capture gesture operations. The sensor unit detects gestures such as hand movements, head movements, or body movements, converting mechanical operations into sensor-based recognition. This substitution eliminates the need for physical contact interfaces, reducing user burden while maintaining operational versatility.

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

Solution Approach 2:

The patent implements a universal gesture recognition system that can interpret multiple different gestures (hand gestures, head gestures, body gestures) as operation inputs. The controller unit is designed to recognize various gesture types and map them to different operations, allowing one interface system to handle multiple operation modes without requiring separate buttons or touch zones for each function.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Ease of operation

If gesture operations are recognized without trigger operations, then operation input is simplified, but unintended operations may occur

Engineering Contradiction:
Improveoperation simplicityVSAvoidinput accuracy
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The patent introduces trigger operations as a preliminary action that must occur before gesture recognition is activated. The sensor unit first detects a trigger operation (such as a specific hand movement or body posture) to activate the gesture recognition function. Only after this trigger is detected does the system begin recognizing and executing gesture operations, ensuring that gestures are only interpreted as commands when the user has explicitly initiated the interaction mode.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system implements feedback through the trigger operation detection mechanism. The controller unit continuously monitors sensor input for trigger operations and uses this feedback to control the gesture recognition state. When a trigger operation is detected, the system transitions to an active state where gestures are recognized; when the trigger is not detected or is cancelled, gesture recognition is deactivated. This feedback loop ensures reliable operation by confirming user intent before executing gestures.

Inventive Principle:
Principle #23Feedback

3Measurement precision

If continuous sensor monitoring is performed, then gesture recognition is improved, but power consumption increases

Engineering Contradiction:
Improvegesture detection accuracyVSAvoidpower consumption
Core Design Contradiction:
Measurement precisionVSUse of energy by moving object

Solution Approach 1:

The patent implements periodic sensor monitoring instead of continuous monitoring. The sensor unit operates in an idle state during normal conditions and activates only when trigger operations are detected or at predetermined time intervals. The controller unit periodically checks for trigger operations and activates gesture recognition functionality only when needed, rather than maintaining continuous monitoring. This periodic action reduces power consumption while preserving gesture detection accuracy when required.

Inventive Principle:
Principle #19Periodic action

Solution Approach 2:

The system dynamically adjusts sensor monitoring based on operational state. The controller unit changes the monitoring behavior from continuous to periodic or from active to idle depending on whether trigger operations have been detected and whether gesture recognition is currently active. This dynamic adaptation allows the system to maintain high measurement precision during active gesture recognition while significantly reducing power consumption during idle periods, optimizing the balance between accuracy and energy efficiency.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentUS10712831B2Information processing apparatus, method, and program
Publication Date: 2020.07.14 SONY GROUP CORP
  • US10712831B2 patent drawing
  • US10712831B2 patent drawing
  • US10712831B2 patent drawing

AI summary

When first sensor information is input to an information processing unit in an information processing apparatus, the information processing unit detects a trigger operation according to a type of the first sensor information. Moreover, the information processing unit recognizes a gesture operation by a user as an operation input on the basis of second sensor information operation. In addition, the information processing unit determines the operation input on the basis of a combination of the detected trigger operation and the recognized gesture operation. According to the information processing apparatus, it is possible that the operation input is diversified without imposing a burden on the user.