Secure Digital Communication Device for Physical Isolation

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Current secure digital communication systems in healthcare, particularly in Picture Archiving and Communication Systems (PACS), face challenges in ensuring secure transmission of sensitive medical images and reports over the internet, vulnerable to Man-In-The-Middle attacks and virus infections without direct physical connections between intranet and internet.

Innovation Solution

Implementing a secure digital communication device with a streaming signal CODEC and transceiver, installed between the intranet and internet over a firewall, which encodes and decodes digital contents using HDMI interfaces, incorporating audio handshake signals and streaming media signals with QR codes and video segments, to facilitate secure transmission.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If digital contents are transmitted over the internet without physical isolation, then communication convenience is improved, but security against MITM attacks and virus infections deteriorates

Engineering Contradiction:

Improvecommunication convenienceVSAvoidsecurity

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The patent introduces a secure digital communication device as an intermediary component installed between the intranet and internet connections. This device acts as a mediator that enables internet communication while maintaining physical isolation through its internal architecture, thus resolving the contradiction between communication convenience and security.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The secure digital communication device segments the network connection into isolated internal channels. By dividing the communication path into separate encoded and decoded signal channels that never directly connect to the internet, the system maintains physical isolation while enabling convenient communication.

Inventive Principle:

Principle #1Segmentation

2Reliability

If physical isolation is implemented between intranet and internet, then security is improved, but communication capability deteriorates

Engineering Contradiction:

ImprovesecurityVSAvoidcommunication capability

Core Design Contradiction:

ReliabilityVSAdaptability or versatility

Solution Approach 1:

The patent replaces direct physical mechanical connections with electronic signal processing. By using CODEC encoding/decoding and transceiver technology, the system achieves communication capability without physical connectivity, thus maintaining security while enabling versatile communication.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The secure digital communication device changes the parameter of physical connectivity to virtual connectivity through signal encoding. The system transforms directly connected physical signals into encoded streaming signals that can be transmitted over the internet without physical exposure, maintaining security while enabling communication.

Inventive Principle:

Principle #35Parameter changes

3Speed

If direct physical connections are made between intranet and internet, then communication speed is improved, but vulnerability to attacks increases

Engineering Contradiction:

Improvecommunication speedVSAvoidvulnerability to attacks

Core Design Contradiction:

SpeedVSObject-affected harmful factors

Solution Approach 1:

The secure digital communication device serves as an intermediary that enables fast communication without direct physical exposure to the internet. The encoded streaming signal transmission maintains communication speed while the intermediary architecture blocks harmful factors from reaching the intranet.

Inventive Principle:

Principle #24Intermediary (Mediator)

Data Source

PatentUS11360734B1Secure digital communication devices and secure digital communication systems using the same

Publication Date: 2022.06.14 SHANGHAI WEILING ELECTRONICS CO LTD

AI summary

Aspects of present disclosure relates to a secure digital communication device. In certain embodiments, secure digital communication device (SDCD) includes: a streaming signal CODEC, and a streaming signal transceiver. SDCD is installed between intranet and internet over firewall to form a physical isolation of intranet and internet. When streaming signal CODEC of a first SDCD receives digital contents, streaming signal CODEC of the first SDCD encodes digital contents into streaming signal, transmits streaming signal to a streaming signal transceiver of the first SDCD, streaming signal transceiver of the first SDCD transmits streaming signal over internet to another streaming signal transceiver of second SDCD. The streaming signal transceiver of the second SDCD transmits streaming signal to a second streaming signal CODEC of the second SDCD, the streaming signal CODEC decodes the streaming signal to digital contents, and transmits digital contents out of secure digital communication device through streaming signal CODEC.