Single-ADC Video Decoding With Signal Compensation Integration
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Solution Overview
Problem
Existing video decoding systems require two separate AD converters for input signal compensation and video signal conversion, leading to decreased design efficiency and increased fabrication costs due to redundant digital information processing.
Innovation Solution
A video decoding system that integrates AD converters and functional blocks for both processes, using a single AD converter, synchronized signal level detector, and color burst level detector to perform compensation and decoding, allowing for a single-chip implementation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If two separate AD converters are used for input signal compensation and video signal conversion, then each process can be performed independently, but fabrication cost increases and design efficiency decreases
Solution Approach 1:
The patent combines two separate AD converters into a single shared AD converter that serves both the input signal compensation process and the video signal conversion process. This merging eliminates redundant components, reduces fabrication costs, and improves design efficiency while maintaining the functional independence of both processes through software or control logic management.
Solution Approach 2:
The single AD converter is designed to perform multiple functions: it converts analog input signals for compensation processing and also converts analog video signals for decoding. This multi-functional approach allows one component to replace two, reducing overall system complexity and manufacturing cost while maintaining the reliability of independent process operation.
2Reliability
If two separate AD converters are used for input signal compensation and video signal conversion, then each process can be performed independently, but design efficiency decreases
Solution Approach 1:
The patent merges two separate AD converter designs into one unified design, reducing the overall device complexity. By sharing a common AD converter between the compensation and decoding functions, the patent eliminates redundant design efforts, simplifies the system architecture, and improves design efficiency while maintaining process independence through functional separation.
3Productivity
If multiple video decoding systems are implemented, then processing capability increases, but fabrication cost increases due to redundant AD converters
Solution Approach 1:
The patent designs the AD converter as a universal component that can be shared across multiple video decoding systems. Each system can utilize the same AD converter resource, eliminating the need for redundant converters in each system and significantly reducing fabrication costs while maintaining the processing capability of multiple simultaneous decodings.
Data Source
AI summary
The present invention relates to a video decoding system having a compensation function, the video decoding system comprising: one AD converter; a synchronized signal level detector for detecting a synchronized signal level using a digital signal output from the AD converter; a color burst level detector for detecting a color burst level using the digital signal output from the AD converter; a compensation apparatus for compensating the video level and the high frequency components of an analog signal by using information detected by the synchronized signal level detector and the color burst level detector, and for compensating and transmitting a synchronized signal level to the AD converter; and a decoding apparatus for outputting a digital component image signal (YCrCb) using the digital signal output from the AD converter.