Source Driver Glitch Removal via Signal Transition Detection
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Solution Overview
Problem
Display devices face malfunctions due to glitches in status information signals received through transmission channels, which existing technologies fail to effectively remove, leading to signal distortion and impaired performance.
Innovation Solution
An apparatus comprising a receiver with a transition detection circuit, delay circuit, and output circuit that detects and delays signal transitions to remove glitches from status information signals, ensuring clean signal transmission and reception, and a source driver that includes a receiving controller with similar functionality to recover transmission signals from the display device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If status information signals are transmitted through transmission channels, then device communication and control are enabled, but glitches occur in the received signals causing malfunctions
Solution Approach 1:
The transition detection circuit proactively detects signal transitions before they can cause malfunction. By detecting the rising or falling edges of the status information signal in advance, the system prepares to ignore subsequent glitch-induced transitions, thereby preventing malfunctions before they occur.
Solution Approach 2:
The delay circuit acts as an intermediary between the transition detection circuit and the output circuit. It introduces a predetermined time delay that filters out rapid glitch transitions while allowing legitimate signal transitions to pass through, effectively mediating between the raw signal and the processed output.
2Productivity
If existing technologies are used to transmit status information signals, then device communication is maintained, but signal distortion occurs leading to impaired performance
Solution Approach 1:
The system uses feedback from the transition detection circuit to control the output circuit. When a legitimate transition is detected, the delay circuit generates a delay detection signal that triggers the output circuit to output the status information signal. This feedback mechanism ensures that only valid transitions are transmitted, maintaining signal integrity while enabling continuous device operation.
Solution Approach 2:
The delay circuit changes the time parameter of the signal by introducing a predetermined delay. This parameter transformation converts rapid glitch transitions into suppressed signals while preserving legitimate transitions, thereby improving signal integrity without stopping device operation.
Data Source
AI summary
A source driver of a display apparatus includes a receiving controller receiving a first status information signal and outputting a second status information signal and a receiving circuit receiving a transmission signal in response to the second status information signal and recovering the transmission signal to receiving data. The receiving controller includes a transition detection circuit detecting a transition of the first status information signal and outputting a transition detection signal, a delay circuit delaying the transition detection signal by a predetermined time and outputting a delay detection signal, and an output circuit receiving the first status information signal and outputting the second status information signal in response to the delay detection signal.