Electronic Apparatus Power Mode Control via Gaze Detection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing electronic apparatuses face challenges in accurately detecting user intention for power-saving control, particularly when the facing direction is towards the device but the line of sight is elsewhere, leading to increased power consumption due to constant operation of detection devices.
Innovation Solution
An electronic apparatus with a display that includes a facing-direction detection unit, a line-of-sight detection unit, a determination unit, and a control unit, which together determine whether to execute a normal mode or a power-saving mode based on the detected facing direction and line of sight, thereby optimizing power usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the detection device is constantly driven to detect facing direction and line of sight, then the accuracy of operation intention detection is improved, but the power consumption of the device increases
Solution Approach 1:
The patent applies dynamics by making the detection device operational state adjustable between active and inactive states. The control unit dynamically switches the detection device based on predetermined conditions (such as display off-state or eye-closure detection), allowing the system to adapt power consumption levels while maintaining detection accuracy when needed.
Solution Approach 2:
The patent implements periodic action by controlling the detection device to operate only during specific periods or conditions rather than continuously. The device is activated when the display is on and deactivated when the display is off, creating a periodic operation pattern that reduces overall power consumption while maintaining detection capability during active periods.
2Speed
If the power supply of the detection device is always turned on based on device movement and surrounding brightness, then the responsiveness to user presence is improved, but the power consumption increases depending on surrounding situations
Solution Approach 1:
The patent segments the control logic into multiple independent determination steps: first determining display state, then eye-closure state, and finally deciding detection device operation. This segmented approach allows precise control where the detection device is only activated when both display is on and no eye-closure is detected, optimizing the balance between responsiveness and power consumption.
Solution Approach 2:
The patent uses feedback mechanisms by detecting eye-closure state and using it to control the detection device operation. When eye-closure is detected, the system provides feedback to turn off the detection device, creating a closed-loop control system that adjusts power consumption based on real-time user state while maintaining responsiveness when the user is active.
Data Source
AI summary
An electronic apparatus including a display includes a facing-direction detection unit that detects a direction of a facing direction representing a direction in which a user of the electronic apparatus is facing, a line-of-sight detection unit that detects a line of sight direction of the user, a determination unit that, based on a detection result of the facing-direction detection unit and a detection result of the line-of-sight detection unit, determines whether to execute a normal mode indicating a normal drive state or a power saving mode where power consumption is less than in the normal mode, and a control unit that executes a mode based on a result of the determination of the determination unit.