In-Display Fingerprint Light Spot Synchronous Transmission
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Solution Overview
Problem
Current in-screen fingerprint recognition technologies face delays in responding to fingerprint events due to asynchronous transmission of light spot display data and fingerprint scenario marking information, leading to prolonged light spot display times and overall fingerprint recognition processes.
Innovation Solution
Synchronous transmission of light spot display data and fingerprint scenario marking information through the same transmission path or sending queue ensures simultaneous receipt by the display driver, reducing light spot display time and enhancing fingerprint recognition speed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If light spot display data and fingerprint scenario marking information are transmitted asynchronously through different paths, then device complexity is reduced, but light spot display speed and fingerprint recognition response time deteriorate
Solution Approach 1:
The patent merges the transmission paths of light spot display data and fingerprint scenario marking information into a single synchronous transmission channel. Both data types are transmitted together through the same path, ensuring they arrive simultaneously at the display driver, which eliminates the complexity of coordinating multiple asynchronous paths while maintaining high display speed.
Solution Approach 2:
The system performs preliminary packaging of light spot display data and fingerprint scenario marking information into a unified data structure before transmission. This preliminary organization ensures that both data types are ready for synchronous transmission, eliminating delays that would occur if coordination happened during the transmission process itself.
2Adaptability or versatility
If light spot display data and fingerprint scenario marking information are transmitted asynchronously, then data transmission flexibility is improved, but fingerprint recognition response time deteriorates
Solution Approach 1:
The patent implements a dynamic transmission mechanism where the system can adaptively switch between synchronous and asynchronous transmission modes based on operational requirements. During fingerprint recognition events, synchronous transmission is activated to minimize response time, while other operations can utilize more flexible asynchronous transmission, thus balancing adaptability with speed.
Solution Approach 2:
The unified transmission path is designed to handle multiple data types (light spot display data and fingerprint scenario marking information) simultaneously, making it a universal channel that serves multiple functions. This multi-functional approach maintains transmission flexibility while ensuring synchronized delivery of critical data pairs.
3Reliability
If separate transmission paths are used for light spot display data and fingerprint scenario marking information, then data integrity is improved, but light spot display synchronization deteriorates
Solution Approach 1:
The patent combines light spot display data and fingerprint scenario marking information into a single integrated data packet transmitted through one path. This merging ensures that both data elements arrive simultaneously and remain synchronized, eliminating the desynchronization problems that occur when separate transmission paths are used, while internal checksums maintain data integrity.
Data Source
AI summary
A light spot display method and an apparatus are disclosed. After a fingerprint event in a fingerprint detection area is detected, a light spot drawing instruction is generated, and a light spot is drawn in response to the light spot drawing instruction to obtain light spot display data, and fingerprint scenario marking information and the light spot display data are simultaneously sent, so as to ensure that a display driver synchronously receives the fingerprint scenario marking information and the light spot display data. This solution reduces the time consumed in the light spot display process, that is, increases the light spot display speed. The fingerprint image can be obtained and the fingerprint can be recognized only after the light spot is normally displayed. Therefore, this solution increases the speed of responding to a fingerprint event, and then reduces the time consumed in the entire fingerprint recognition process.