Matrix Barcode Authorization in Telepresence Video Streams

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Solution Overview

Problem

Telepresence systems face challenges in authorizing clients to access resources and functionality, especially when clients and endpoints are on different networks without shared information, and may not be configured with input devices to provide user credentials.

Innovation Solution

A method where a client generates an image with a matrix barcode encoding user credentials and other instructions, which is sent in a video stream to the telepresence system, allowing the system to decode and perform the necessary actions, such as initiating a login sequence or customizing settings, based on the encoded text.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If clients and endpoints are on different networks without shared information, then network compatibility and accessibility are improved, but authorization and security become more difficult to implement

Engineering Contradiction:

Improvenetwork compatibilityVSAvoidauthorization security

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The patent uses a video stream as an intermediary carrier to transmit encoded authorization data. The client embeds a matrix barcode containing credentials within the video stream frames, allowing secure data transmission across network boundaries without requiring pre-configured communication channels or shared secrets between different networks.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The authorization data is encoded into a visual representation (matrix barcode) that can be copied and transmitted through the video stream. This creates a portable, self-contained authorization credential that can be universally recognized by the endpoint regardless of network configuration.

Inventive Principle:

Principle #26Copying

2Ease of manufacture

If endpoints are not configured with input devices, then device simplicity and ease of deployment are improved, but user credential input becomes impossible

Engineering Contradiction:

Improvedevice configuration simplicityVSAvoidcredential input capability

Core Design Contradiction:

Ease of manufactureVSEase of operation

Solution Approach 1:

The patent replaces the mechanical input method (keyboard, mouse, or other physical input devices) with an optical transmission method. The client displays the matrix barcode on its screen, and the endpoint captures it via video input, eliminating the need for physical input devices at the endpoint while maintaining credential input functionality.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The video interface, originally designed for display output, is made multi-functional by enabling it to also serve as an input channel for authorization data. This allows the same hardware component to perform both video output and credential input functions, eliminating the need for separate input devices.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentEP2856753B1Communicating with an endpoint using matrix barcodes

Publication Date: 2020.02.12 CISCO TECHNOLOGY INC

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AI summary

In one embodiment, a method includes receiving, by an endpoint from a client, an image generated by the client. The endpoint determines that the image generated by the client includes a matrix barcode, The endpoint decodes the matrix barcode to determine one or more instructions associated with text encoded within the matrix barcode. The method further includes performing the one or more instructions associated with the encoded text.