Sensor Controller Integrated Signal for Input Sensing
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Solution Overview
Problem
Electronic devices face degraded input sensing performance during high-speed operations, particularly when using input devices like styluses, due to the allocation of recognition periods affecting the sensing of user inputs.
Innovation Solution
The electronic device employs a sensor controller that transmits an integrated transmission signal including a recognition signal and a first mode sensing signal during the first input sensing frame, allowing simultaneous recognition and sensing of inputs, thereby preventing performance degradation by utilizing the recognition period for sensing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the sensor controller allocates separate recognition periods for input devices, then the input device can be properly recognized, but the input sensing performance degrades during high-speed operations
Solution Approach 1:
The patent merges the recognition signal transmission and first mode sensing signal transmission into a single integrated transmission signal. This allows the sensor controller to simultaneously recognize input devices and sense first inputs during the same time period, eliminating the need for separate recognition periods and thereby preventing input sensing performance degradation during high-speed operations.
Solution Approach 2:
The integrated transmission signal serves multiple functions simultaneously: it acts as both a recognition signal for identifying input devices and a first mode sensing signal for detecting user inputs. This multi-functionality allows the system to maintain both device recognition capability and high-speed input sensing performance without requiring separate time allocations.
2Measurement precision
If the sensor controller uses separate frames for sensing first and second inputs, then each input type can be sensed accurately, but the overall processing speed decreases
Solution Approach 1:
The patent implements a periodic sensing framework where first inputs are sensed during first input sensing frames and second inputs are sensed during second input sensing frames. Within each frame type, the integrated transmission signal enables simultaneous recognition and sensing operations, maintaining periodic accuracy while improving overall processing speed by eliminating redundant separate recognition periods.
Data Source
AI summary
An electronic device includes: a display panel configured to display an image; an input sensor on the display panel and configured to sense a first input in first and second modes; a sensor controller connected to the input sensor; and an input device configured to transceive a signal with the sensor controller through the input sensor and to provide a second input to the input sensor, wherein the sensor controller is configured to sense the first input through the input sensor during a first input sensing frame and the second input generated by the input device during a second input sensing frame, and wherein the sensor controller is configured to transmit, to the input sensor, an integrated transmission signal comprising a recognition signal for recognizing the input device and a first mode sensing signal for sensing the first input in the first mode during a first operation period of the first input sensing frame.