Multi-Sensor Display Brightness Control via Device State Detection
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Solution Overview
Problem
When an electronic device uses only one illumination sensor, it may fail to accurately measure ambient light, leading to inappropriate display brightness for the user.
Innovation Solution
The electronic device employs multiple sensors located on different surfaces of its housing, with a processor determining the device's state and adjusting display brightness based on information from these sensors, ensuring more accurate light measurement and user-friendly brightness levels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If only one illumination sensor is used, then device complexity is reduced, but measurement precision deteriorates
Solution Approach 1:
The patent divides the sensing function into multiple segments by placing illumination sensors on different surfaces of the device. The processor segments the light measurement task by determining which sensor's data to use based on device orientation, thereby achieving accurate ambient light measurement without continuously using all sensors.
Solution Approach 2:
The patent adds spatial dimension to the sensing system by positioning sensors on multiple surfaces (front, back, left, right) of the device. This multi-dimensional sensor arrangement allows the system to accurately measure ambient light from any orientation, resolving the contradiction between using fewer sensors and maintaining measurement precision.
2Measurement precision
If multiple sensors are used, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The patent implements a dynamic sensor selection mechanism where the processor determines which sensor data to use based on real-time device orientation and usage state. This dynamic approach allows the system to use multiple sensors when needed for accurate measurement while effectively using only one sensor at a time, thereby maintaining measurement precision without proportionally increasing device complexity.
Solution Approach 2:
The patent changes the operational parameter of the sensor system by selectively activating different sensors based on device state. Instead of continuously using all sensors, the system changes which sensor is active based on orientation parameters, achieving accurate ambient light measurement while reducing the effective complexity of the sensing system.
3Device complexity
If sensors are positioned on one side only, then device complexity is reduced, but adaptability deteriorates
Solution Approach 1:
The patent makes the sensor system universal by positioning sensors on multiple surfaces of the device. This multi-functional arrangement allows the same sensor system to accurately measure ambient light regardless of device orientation or usage scenario, thereby achieving high adaptability without proportionally increasing device complexity through intelligent sensor selection.
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 allows for more precise control of display brightness, providing a suitable brightness level to the user by utilizing multiple sensors to account for various states and environments of the device.
Implementation Method 1
an electronic device may measure the ambient illumination by using one illumination sensor
Data Source
AI summary
Provided is an electronic device including a display; a first sensor located on a first surface of a housing including the display; a second sensor located on a second surface of the housing; and a processor for determining a state of the electronic device on the basis of at least a part of first sensing information acquired by the first sensor, acquiring second sensing information from the second sensor on the basis of the result of the determining the state of the electronic device, and determining the brightness of the display on the basis of at least one of the first sensing information and the second sensing information, wherein the second sensor includes a sensor for detecting light.