Display Drive Device Error Inspection via Multiplexed CRC
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Solution Overview
Problem
There is a need for a method to inspect errors in important areas of information displayed on a display, such as a vehicle display, without adding a separate interface for transmitting CRC data, and to check errors in dynamically changing image positions.
Innovation Solution
A method and device for inspecting image data that involves receiving a frame, checking a partial area based on location information, generating CRC data, and comparing it with existing CRC data to determine errors, all integrated into the display processing and driving devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a separate interface is added for transmitting CRC data, then error detection capability is improved, but device complexity and interface requirements increase
Solution Approach 1:
The patent combines CRC data transmission with the existing image data transmission interface. The CRC data is multiplexed on the same data lines used for image data, eliminating the need for a separate CRC transmission interface while maintaining error detection capability
Solution Approach 2:
The existing data transmission interface is made multi-functional by enabling it to carry both image data and CRC data simultaneously. This allows the single interface to serve dual purposes: primary image transmission and error detection data transmission
2Reliability
If CRC inspection is applied to the entire image data, then error detection coverage is improved, but processing time and computational load increase
Solution Approach 1:
The patent divides the image data into multiple blocks and applies CRC inspection only to specific important blocks rather than the entire image. This segmentation approach reduces the computational load and processing time while maintaining error detection for critical areas
Solution Approach 2:
Different blocks of image data are treated differently based on their importance. Critical blocks receive full CRC inspection while less important blocks may have reduced or no inspection, optimizing the balance between error detection coverage and processing efficiency
3Manufacturing precision
If the display resolution and size are increased, then display quality is improved, but the complexity of error detection in dynamic image positions increases
Solution Approach 1:
The patent pre-identifies and marks important blocks in the image data before transmission. These blocks are predetermined based on their significance, allowing the receiver to quickly locate and inspect them without complex real-time analysis of dynamic image positions
Solution Approach 2:
Location information acts as an intermediary that connects the transmitted image data with the CRC inspection process. This intermediary data structure enables efficient identification of important blocks regardless of their dynamic positions in the high-resolution display
Data Source
AI summary
This embodiment relates to a display processing device, a display driving device, a data transmission method, and an image data inspection method, and provides a device and a method for inspecting image data transmitted through a transmission line for error.