Display Device Signal Encoding with Adaptive Error Correction
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Solution Overview
Problem
The existing high-speed interface systems for display apparatuses face signal transmission errors due to factors like cable conditions, signal loss, and electromagnetic interference, which can lead to instability and erroneous corrections when batch applying forward error correction (FEC) without considering signal characteristics.
Innovation Solution
A display apparatus and method that employs multiple encoders and decoders tailored to specific signal types, with packet-type data using high error correction capacity codes like Reed-Solomon and serial-type data using lower error correction capacity codes like Hamming, along with packetizing, interleaving, and scrambling, to ensure accurate and stable signal transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If batch FEC is applied to all signals without considering signal characteristics, then error correction coverage is improved, but signal stability deteriorates and erroneous corrections occur
Solution Approach 1:
The patent segments the signal processing system into multiple encoder/decoder pairs, each dedicated to specific signal types (e.g., video data, audio data, control signals). This segmentation allows each encoder to apply FEC parameters optimized for its specific signal type, preventing the stability issues caused by uniform batch FEC application while maintaining comprehensive error correction coverage.
Solution Approach 2:
The patent implements local quality by assigning different FEC coding schemes and parameters to different signal types based on their specific characteristics. For example, video data may use one FEC configuration while control signals use another, ensuring each signal receives the appropriate level and type of error correction without affecting the stability of other signals.
2Reliability
If high error correction capacity codes are applied to all signal types, then error correction capability is improved, but transmission efficiency deteriorates
Solution Approach 1:
The patent changes FEC parameters (coding scheme, code rate, block size) based on the specific requirements of each signal type. Critical signals with high error sensitivity receive high error correction capacity codes, while less critical signals use lower capacity codes, thereby optimizing the balance between error correction capability and transmission efficiency across the entire system.
Data Source
AI summary
The disclosure relates a display apparatus comprising: a signal input receiver receives a plurality of signals which are different in kind from each other, a plurality of encoders provided respectively corresponding to the plurality of signals, and perform encoding of a corresponding mode according to the kinds of at least one signal input to the signal input receiver among the plurality of signals, a first interface transmits a signal obtained by serializing the encoded signal, a second interface deserializes the signal received from the first interface, a plurality of decoders provided respectively corresponding to the plurality of encoders, and perform decoding and restoring the deserialized signal into the at least one signal, and a display displays an image based on the at least one restored signal.