Fingerprint Sensor Orientation Check to Prevent Accidental Touches
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Fingerprint sensors on electronic devices often trigger unintended responses due to accidental touches, leading to unnecessary power consumption and user inconvenience, especially when integrated into outer or rear sides of devices.
Innovation Solution
The method involves detecting operations on a fingerprint sensor and determining the matching result, skipping responses when the included angle between the screen and gravity direction exceeds a preset range, and using additional sensors like acceleration, camera, or infrared to confirm user interaction, thereby reducing power consumption and improving user experience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the fingerprint sensor is integrated into the outer side or rear side of the electronic device for easy access, then the ease of operation is improved, but accidental touches occur more frequently causing unintended responses
Solution Approach 1:
The system performs preliminary detection of the device's orientation state before executing the fingerprint recognition response. By checking whether the included angle between the screen direction and gravity direction falls within the preset range, the system proactively identifies accidental touch scenarios and prevents unintended responses, thereby resolving the contradiction between ease of access and recognition accuracy
Solution Approach 2:
The system uses the orientation detection mechanism to provide feedback on whether the device is in a normal operational state. This feedback loop allows the system to distinguish between intentional and accidental touches, ensuring that fingerprint responses are only executed when appropriate, thus maintaining both accessibility and reliability
2Productivity
If the electronic device executes response immediately after fingerprint matching to improve response speed, then the productivity is improved, but power is wasted on unintended responses
Solution Approach 1:
The system performs a preliminary check of the device orientation state before executing the fingerprint recognition response. By detecting whether the included angle between the screen direction and gravity direction falls within the preset range, the system avoids executing responses for accidental touches, thereby preventing unnecessary power consumption while maintaining fast response for valid operations
Solution Approach 2:
The system adds a partial verification step (orientation detection) to the fingerprint recognition process. This additional check is minimal in terms of power consumption but effectively filters out accidental touches, ensuring that power is only consumed for legitimate authentication attempts, thus optimizing the balance between response speed and energy efficiency
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 approach effectively reduces accidental triggers of fingerprint sensors, conserves power, and enhances user interaction by ensuring responses are only executed when intended, improving the operational efficiency and usability of electronic devices.
Implementation Method 1
a fingerprint sensor... determining a result of matching a fingerprint collected by the fingerprint sensor with a preset fingerprint
Implementation Method 2
an included angle between a direction of the screen and a gravity direction
Data Source
Figure 1
Figure 2a~2b
Figure 2c
AI summary
A processing method is disclosed. An electronic device may detect, in a locked state, an operation performed on a fingerprint sensor; determine a result of matching a fingerprint collected by the fingerprint sensor with a preset fingerprint, where the matching result is matching or not matching; and when an included angle between a direction of a screen and a gravity direction falls beyond a preset range, skip executing a response corresponding to the matching result; or when an included angle between a direction of a screen and a gravity direction falls within a preset range, execute a response corresponding to the matching result. Therefore, a response caused due to accidental touch of the fingerprint sensor can be prevented from being executed, and power consumption of the electronic device can be reduced.