Two-Bit Parallel Signal Transmission for High-Speed Data Integrity
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Solution Overview
Problem
The transmission of high-capacity/high-speed digital data, such as 4K or 8K broadcasts, is affected by parasitic elements in wiring lines, causing waveform deformation, delay, and electromagnetic interference, which hinders demodulation and decoding processes due to increased clock and data frequencies during serial transmission, while parallel transmission requires more wiring and terminals, posing space and terminal constraints.
Innovation Solution
A signal processing device with a demodulation processing unit and a processing unit connected via sync, valid, clock, and data signal lines, utilizing two-bit parallel transmission to reduce parasitic element effects, secure substrate area, and minimize terminal requirements, allowing for reliable data transmission and decoding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If serial transmission is used to transmit high-capacity digital data, then the transmission rate is increased, but the clock and data frequencies are increased causing waveform deformation, delay, and electromagnetic interference due to parasitic elements in wiring lines
Solution Approach 1:
The patent segments the high-capacity digital data into multiple channels for parallel transmission. Each channel operates at a lower frequency, avoiding the waveform deformation and electromagnetic interference caused by high-frequency serial transmission, while maintaining high overall transmission throughput through the combined capacity of multiple parallel channels.
Solution Approach 2:
The patent transitions from one-dimensional serial transmission to two-dimensional parallel transmission by utilizing multiple signal lines simultaneously. This dimensional change allows data to be transmitted across multiple paths in parallel, reducing the frequency burden on each individual line while maintaining high aggregate throughput.
2Reliability
If parallel transmission is used to reduce clock and data frequencies, then the signal quality is improved, but more wiring lines and terminals are required increasing device complexity and substrate area
Solution Approach 1:
The patent implements partial parallel transmission by dividing data into multiple channels, but not fully parallelizing all bits simultaneously. This selective parallel approach achieves sufficient signal quality improvement while limiting the increase in wiring lines and terminals to what is necessary for the specific application requirements.
Solution Approach 2:
The patent designs the signal processing device with multi-functional signal lines that can handle both data transmission and synchronization functions. The sync signal lines and valid signal lines serve multiple purposes in coordinating the parallel data channels, reducing the need for separate dedicated control lines for each channel.
3Reliability
If parallel transmission is used to reduce parasitic element effects, then the transmission reliability is improved, but more substrate area is required
Solution Approach 1:
The patent merges multiple data streams into a unified parallel transmission structure that shares common synchronization and control infrastructure. By combining the sync signal lines, valid signal lines, and clock signal lines into shared resources across multiple data channels, the patent reduces the total substrate area required compared to fully independent parallel channels.
Data Source
AI summary
A signal processing device includes an interface, which includes a demodulation processing unit that executes demodulation processing, a processing unit that executes demux processing or the like, and a sync signal line, a valid signal line, a clock signal line, and a data signal line disposed between the demodulation processing unit and the processing unit, that transmits data signals as two-bit parallel transmission.