Virtual Camera Data Sharing System for Secure USB Transmissions

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Solution Overview

Problem

Current conference reporting systems face security risks due to the potential for data leakage through USB transmission ports, as hackers can exploit Human Interface Device (HID) commands, compromising information security.

Innovation Solution

A data sharing method and system that changes the hardware registration identification code of transmitters to a virtual camera device code, allowing image data signals to be converted into video stream data compatible with communication software programs, thereby enhancing security and convenience.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If USB transmission port data access function is enabled for convenient data transmission, then ease of operation is improved, but information security deteriorates due to potential HID command exploitation

Engineering Contradiction:

Improvedata transmission convenienceVSAvoidinformation security risk

Core Design Contradiction:

Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The patent creates a virtual USB transmission port that replicates the functionality of a physical USB port. This virtual port copies the data transmission capabilities while masking the real hardware identity, allowing convenient data access without exposing actual hardware specifications to potential hackers through HID commands

Inventive Principle:

Principle #26Copying

Solution Approach 2:

The patent introduces a virtualization layer as an intermediary between the physical USB port and the operating system. This intermediary (virtual USB driver) mediates all data transmission requests, converting them into virtual port operations that do not reveal real hardware information while maintaining full data transmission functionality

Inventive Principle:

Principle #24Intermediary (Mediator)

2Ease of operation

If hardware registration identification code is kept as original for device recognition, then ease of operation is improved, but information security deteriorates due to exposure of hardware specifications

Engineering Contradiction:

Improvedevice recognitionVSAvoidhardware information exposure

Core Design Contradiction:

Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The patent generates a virtual hardware registration identification code that mimics the structure and format of original hardware codes. This virtual code allows the operating system to recognize and operate the USB device normally while completely masking the real hardware identification and specifications

Inventive Principle:

Principle #26Copying

Solution Approach 2:

The patent dynamically changes the hardware registration identification code parameter from its original physical value to a virtualized value. This parameter transformation maintains functional compatibility for device recognition while eliminating the security vulnerability of exposing real hardware specifications

Inventive Principle:

Principle #35Parameter changes

Data Source

PatentUS11849156B2Data sharing method and data sharing system capable of changing hardware registration identification code

Publication Date: 2023.12.19 BENQ CORP

AI summary

A data sharing method includes providing a receiver and at least one transmitter, changing a first hardware registration identification code of the at least one transmitter to a second hardware registration identification code of a virtual camera device corresponding to at least one communication software program by the receiver, and using the virtual camera device for converting at least one image data signal transmitted from the at least one transmitter to video stream data supported by the at least one communication software program after the receiver receives the at least one image data signal.