Display Image Check Circuit for Region-Based Error Detection

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Solution Overview

Problem

Existing display control systems face increased processing loads due to the need for both transmitting and receiving devices to perform CRC calculations for image data verification, leading to potential communication errors and delays.

Innovation Solution

A circuit device with an interface circuit that receives image data and information for image check, including designation of the image check method and region, performs image check processing using the designated method, allowing for efficient error detection and correction based on the importance of the region.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If CRC calculation is performed by both transmitting and receiving devices for image data verification, then reliability of image data is improved, but processing load increases

Engineering Contradiction:

Improvereliability of image dataVSAvoidprocessing load

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent divides the image data transmission into multiple channels (first image data and second image data) with different reliability requirements. Different error correction methods are applied to different segments: CRC for the first channel and ECC for the second channel, optimizing processing load while maintaining overall reliability.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Different error correction strategies are applied to different regions/channels of image data based on their specific reliability needs. The first image data uses CRC (lighter processing) while the second image data uses ECC (heavier processing), matching the correction strength to the local reliability requirements of each data segment.

Inventive Principle:

Principle #3Local quality

2Reliability

If CRC calculation is performed by both transmitting and receiving devices, then error detection capability is improved, but communication delay increases

Engineering Contradiction:

Improveerror detection capabilityVSAvoidcommunication delay

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The patent segments image data into two channels with different error correction approaches. The first channel uses CRC which provides faster error detection, while the second channel uses ECC which offers stronger correction but with higher processing overhead. This segmentation balances error detection capability with communication delay constraints.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Instead of applying full CRC or ECC to all image data, the patent applies partial error correction (CRC) to the first image data and more comprehensive correction (ECC) only to the second image data. This partial application of error correction methods reduces overall processing time while maintaining adequate error detection capability.

Inventive Principle:

Principle #16Partial or excessive action

Data Source

PatentUS11474914B2Circuit device, display control system, electronic apparatus, and mobile unit for securing reliability of image data

Publication Date: 2022.10.18 SEIKO EPSON CORP

AI summary

A circuit device 100 includes an interface circuit 160 that receives image data and information for image check and a processing circuit 105 that performs image check processing. The information for image check includes information for designating an image check method for a region to be subjected to image check and position information of the region to be subjected to image check. The processing circuit 105 performs the image check processing on the image data of the region to be subjected to image check specified by the position information, using the image check method designated by the designation information.