Signal Division Module for High Bandwidth HDMI Transmission

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Solution Overview

Problem

The existing HDMI standard and cables are insufficient for transmitting video signals conforming to new video standards that use signals four or sixteen times the bandwidth of current full-high-definition standards, leading to compatibility issues with current transmission systems.

Innovation Solution

An electronic device with a signal division module that divides input signals into multiple HDMI-compatible signals, allowing transmission over multiple HDMI cables, enabling the transmission of higher bandwidth video signals by dividing them into compatible segments, such as 4 k or 8 k video, within the limits of the HDMI 1.4b standard.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Quantity of substance

If a dedicated transmission standard and dedicated transmission cables are used for new video standards, then the bandwidth requirement is satisfied, but compatibility with current HDMI standard and current transmission cables is lost

Engineering Contradiction:
ImprovebandwidthVSAvoidcompatibility
Core Design Contradiction:
Quantity of substanceVSAdaptability or versatility

Solution Approach 1:

The high-bandwidth video signal is divided into multiple lower-bandwidth segments that can be transmitted through existing HDMI cables. The signal division module splits the incoming video signal into multiple output signals, each suitable for transmission over standard HDMI infrastructure, thereby maintaining compatibility while achieving the required total bandwidth through parallel transmission paths

Inventive Principle:
Principle #1Segmentation

2Adaptability or versatility

If the HDMI standard is used for transmitting new video standard signals, then compatibility with current transmission cables is maintained, but the bandwidth becomes insufficient

Engineering Contradiction:
ImprovecompatibilityVSAvoidbandwidth
Core Design Contradiction:
Adaptability or versatilityVSQuantity of substance

Solution Approach 1:

Multiple HDMI transmission channels are combined to achieve the total bandwidth required for new video standards. The system merges multiple lower-bandwidth HDMI signals into a single high-bandwidth output, effectively aggregating the capacity of multiple standard cables to meet the demands of 4K and 8K video transmission

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentUS9848164B2Signal transmission method and electronic device
Publication Date: 2017.12.19 KK TOSHIBA
  • US9848164B2 patent drawing
  • US9848164B2 patent drawing
  • US9848164B2 patent drawing

AI summary

According to one embodiment, an electronic device including a signal division module and a plurality of output ports. The signal division module receive an input signal and to divide the received input signal into a predetermined number of signals. The plurality of output ports being configured to output the predetermined number of signals into which the input signal is divided by the signal division module and information indicating physical addresses of themselves to a plurality of two-way communication interfaces a number of which corresponds to the predetermined number at the time of division by the signal division module.