Channel-Load Signal Level Control for Multi-Chip Transmission
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Solution Overview
Problem
In point-to-point connections between controllers and semiconductor chips, channel loading variations lead to inefficient signal transmission, causing power wastage and electromagnetic interference (EMI), as the same signal level is applied across all channels, regardless of distance, resulting in inadequate signal reception by chips farther from the controller.
Innovation Solution
A device that includes a controller to adjust the signal level based on channel loading for each semiconductor device, using a timing controller to control column drivers and gate drivers in an LCD, ensuring that signal levels are proportional to the distance from the controller, thereby optimizing signal transmission and reducing power consumption and EMI.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the driving strength of the controller is indiscriminately determined to be sufficient for the farthest chip, then signal reception at distant chips is ensured, but power is wasted and electromagnetic interference occurs in adjacent chips
Solution Approach 1:
The patent applies local quality by adjusting the signal level according to the specific channel loading of each semiconductor chip. The controller determines the channel loading for each chip and applies an appropriate signal level locally to each channel, rather than using a uniform high signal level for all channels. This ensures that chips closer to the controller receive lower signal levels, reducing power consumption and EMI, while chips farther away receive higher signal levels to ensure reliable reception.
2Reliability
If the driving strength of the controller is indiscriminately determined to be sufficient for the farthest chip, then signal reception at distant chips is ensured, but electromagnetic interference occurs in adjacent chips
Solution Approach 1:
The patent applies local quality by adjusting the signal level according to the specific channel loading of each semiconductor chip. The controller determines the channel loading for each chip and applies an appropriate signal level locally to each channel, rather than using a uniform high signal level for all channels. This ensures that chips closer to the controller receive lower signal levels, reducing power consumption and EMI, while chips farther away receive higher signal levels to ensure reliable reception.
3Ease of manufacture
If signals having similar levels are supplied to all channels, then implementation is simple, but power is wasted and electro-magnetic interference occurs in chips adjacent to the controller
Solution Approach 1:
The patent applies dynamics by making the signal level adjustable based on channel loading conditions. The controller dynamically determines the appropriate signal level for each channel according to the specific channel loading of the connected semiconductor chip. This dynamic adjustment allows the system to optimize power consumption and EMI while maintaining reliable signal transmission, without requiring complex manual configuration.
4Productivity
If the number of chips is increased, then system capability is improved, but channel distance between controller and chips increases
Solution Approach 1:
The patent applies local quality by adjusting the signal level according to the specific channel loading of each semiconductor chip. The controller determines the channel loading for each chip and applies an appropriate signal level locally to each channel, rather than using a uniform high signal level for all channels. This ensures that chips closer to the controller receive lower signal levels, reducing power consumption and EMI, while chips farther away receive higher signal levels to ensure reliable reception.
Data Source
AI summary
A device for controlling the level of a transmission signal according to the channel loading is provided. The device may include a plurality of semiconductor devices and a controller to control the plurality of semiconductor devices. The controller may control the level of a signal to be transmitted to each of the plurality of semiconductor devices according to the channel loading on each semiconductor device.