CT Detector Data Compression for Lower-Bandwidth Transmission
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Solution Overview
Problem
Current CT scanning systems face challenges in meeting transmission bandwidth requirements for high-speed data collection, leading to increased wiring space occupation and costs, due to the need for high-frequency cables and multiple transmission lines, which can cause impedance differences and limit data transmission reliability.
Innovation Solution
Implementing a method where each front-end processor logarithmically compresses raw data before transmitting it to the back-end processor via independent transmission lines, reducing data volume and transmission rate, thereby meeting bandwidth requirements without the need for high-frequency cables or additional transmission lines, and simplifying the design and reducing costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If high-frequency cables and multiple transmission lines are used to meet transmission bandwidth requirements, then data transmission speed is improved, but wiring space occupation and costs increase
Solution Approach 1:
The patent applies parameter changes by transforming the data from raw format to logarithmically compressed format, which fundamentally changes the data representation parameters. This compression reduces the data volume and transmission rate requirements, allowing the system to meet bandwidth requirements without needing high-frequency cables or additional transmission lines, thereby reducing wiring space occupation and costs
2Reliability
If high-frequency cables are used to increase data transmission bandwidth, then transmission capacity is improved, but impedance differences and reliability issues worsen
Solution Approach 1:
The patent changes the data parameters through logarithmic compression, which reduces the transmission rate and bandwidth requirements. This parameter transformation eliminates the need for high-frequency cables and complex transmission line configurations, thereby reducing impedance differences and improving data transmission reliability while simplifying the overall system
3Productivity
If data transmission rate is increased to meet bandwidth requirements, then processing speed is improved, but system costs and complexity increase
Solution Approach 1:
The patent applies preliminary action by performing logarithmic compression on the data before transmission. This pre-processing step reduces the data volume and transmission rate requirements in advance, allowing the system to achieve efficient data processing without needing complex high-speed transmission infrastructure, thereby reducing system complexity and costs while maintaining productivity
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach effectively reduces the transmission rate, lowers costs, and minimizes wiring space occupation while maintaining imaging continuity and reducing radiation exposure, thereby enhancing processing efficiency and reliability in CT scanning.
Implementation Method 1
A Computed Tomography (CT) device is to perform CT scan on a subject, such as a human body, with scanning rays, such as X-rays... the scanning rays, such as x-rays, may have different penetration rates... receiving the scanning rays penetrating through the subject, converting the scanning rays into electric signals
Data Source
AI summary
An apparatus for collecting data is provided. According to an example, the apparatus for collection data may include: n number of detector arrays, n number of DAS circuits and a back-end processor. Each of the DAS circuits may include an analog-to-digital converter and a front-end processor coupled with the analog-to-digital converter. Each of front-end processors is coupled with the back-end processor via an independent transmission line. For each of the detector arrays, the detector array may be configured to output analog signals based on detected scanning rays penetrating through a subject. The analog-to-digital converter may be configured to perform an analog-to-digital conversion on the analog signals to generate raw data. The front-end processor may be configured to logarithmically compress the raw data and transmit the logarithmically-compressed raw data to the back-end processor via the transmission line.