EIS Control via Sensor State Detection

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Solution Overview

Problem

Existing sports cameras and camcorders require manual operation to enable electronic image stabilization (EIS) during dynamic activities, which reduces efficiency in quickly switching the EIS function on or off, leading to blurry or jittering video images.

Innovation Solution

A control method and device that utilize sensors such as gyroscopes, barometers, GPS, and image sensors to automatically determine the state of the electronic device and control the EIS function to be in an on or off state based on state information, such as acceleration, height, and video changes, allowing for seamless switching without manual intervention.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If manual operation is used to switch EIS function, then user control is precise, but switching efficiency is low and response time is slow

Engineering Contradiction:
ImproveEIS function switching efficiencyVSAvoidManual operation requirement
Core Design Contradiction:
ProductivityVSEase of operation

Solution Approach 1:

The system automatically detects device state through sensors and controls EIS function switching without requiring manual user input. The processor monitors sensor data and autonomously activates or deactivates EIS based on detected motion states, making the system self-serve the user's stabilization needs.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system continuously monitors device state through sensors and uses this feedback to automatically adjust EIS function status. The closed-loop control ensures EIS is activated when motion is detected and deactivated when device is stable, optimizing both responsiveness and energy efficiency.

Inventive Principle:
Principle #23Feedback

2Reliability

If EIS is always on, then image stability is maintained, but energy consumption increases

Engineering Contradiction:
ImproveImage stabilityVSAvoidEnergy consumption
Core Design Contradiction:
ReliabilityVSUse of energy by moving object

Solution Approach 1:

The EIS function status dynamically changes based on real-time device state detection. The system transitions between on and off states according to motion conditions, optimizing energy usage while maintaining image stability when needed. This dynamic adaptation resolves the contradiction between continuous stabilization and energy conservation.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system changes the operational parameter of EIS (on/off state) based on detected device state. By monitoring acceleration and motion parameters through sensors, the system adjusts EIS status to match actual stabilization needs, reducing energy consumption during stable periods while ensuring image quality during motion.

Inventive Principle:
Principle #35Parameter changes

3Reliability

If EIS processing is applied, then video image stability improves, but processing time and computational load increase

Engineering Contradiction:
ImproveVideo image stabilityVSAvoidProcessing time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The system performs preliminary detection of device state through sensors before initiating EIS processing. By pre-identifying motion conditions that require stabilization, the system activates EIS only when necessary, avoiding unnecessary processing time and computational overhead during stable recording conditions.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS11405554B2Control method and device for electronic device, electronic device, and storage medium
Publication Date: 2022.08.02 SZ DJI TECH CO LTD
  • US11405554B2 patent drawing
  • US11405554B2 patent drawing
  • US11405554B2 patent drawing

AI summary

A control device includes a processor and a memory storing instructions that, when executed by the processor, cause the processor to obtain state information of an electronic device through one or more sensors of the electronic device and control an electronic image stabilization (EIS) function of the electronic device to be in an off state or an on state based on the state information.