Image Pickup Device Bit Value Inversion for Transmission Quality
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Solution Overview
Problem
Conventional image pickup systems face challenges in maintaining transmission quality during serial data transmission of images, particularly in scenarios where consecutive bits of the same value dominate, leading to imbalanced bit ratios that can degrade communication efficiency.
Innovation Solution
An image pickup apparatus and system that includes a determining section to identify consecutive bits of the same value, a bit value inversion processing section to adjust the bit ratios to a predetermined balance, and a serial conversion section to serialize the data for transmission, along with a bit value re-inversion section for parallel data conversion, ensuring optimal bit ratio balance and transmission quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If conventional LVDS differential transmission scheme is used for serial data transmission, then transmission capability is improved, but transmission quality degrades when consecutive bits of the same value dominate
Solution Approach 1:
The patent applies parameter changes by dynamically adjusting the bit value ratio in the transmitted data stream. When consecutive bits of the same value are detected, the system inverts bit values to maintain a balanced ratio between first and second bit values, thereby optimizing transmission quality without sacrificing transmission speed capability
Solution Approach 2:
The determining section continuously monitors the bit value distribution in the data stream and provides feedback to the bit value inversion processing section. This feedback mechanism enables real-time adjustment of bit ratios to prevent transmission quality degradation while maintaining high transmission capability
2Reliability
If bit value inversion processing is applied to balance bit ratios, then transmission quality is improved, but device complexity increases
Solution Approach 1:
The bit value inversion processing is performed in advance during the data transmission preparation stage, before the actual transmission occurs. This preliminary action ensures that the bit ratio is optimized beforehand, simplifying the transmission process and reducing real-time processing complexity
Solution Approach 2:
The patent introduces an intermediary processing stage between data generation and transmission, where the bit value inversion processing section acts as a mediator. This intermediary component handles the complexity of bit ratio balancing separately, allowing the main transmission system to operate with simplified logic
Data Source
AI summary
An image pickup apparatus includes an image pickup section that acquires an image by image pickup of an object and acquire digital data of the image, a determining section that determines whether there are a predetermined number or more of consecutive bits with a first bit value or a second bit value in data per pixel included in the digital data, a bit value inversion processing section that inverts, when a determination result that there are the predetermined number or more of consecutive bits with the first or the second bit value is obtained, the bit values so that a ratio between the first bit value and the second bit value included in the corresponding pixel data becomes a predetermined ratio, and a serial conversion section that serializes and outputs the respective bit values of the digital data obtained as the processing result of the bit value inversion processing section.