Coordinated Video Stream Authorization for Multi-Device Sync

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Solution Overview

Problem

Existing video streaming systems face challenges in efficiently managing authorization and synchronization of video streams across multiple devices, leading to potential latency and resolution issues, especially in live events.

Innovation Solution

A coordinator system that manages authorization and selects the most reliable streamer to transmit video streams to multiple devices, synchronizes streams using timestamps, and overlays additional streams for synchronized display, ensuring seamless viewing experiences.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If multiple streamers are used to provide video streams to multiple devices, then the system can serve more devices simultaneously, but authorization management becomes more complex and synchronization issues arise

Engineering Contradiction:
Improvenumber of devices servedVSAvoidauthorization management complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent introduces a coordination server as an intermediary between multiple streamers and multiple client devices. This server centralizes authorization management by receiving authentication requests from client devices, verifying credentials against a user database, and distributing authorized video streams to legitimate clients. This mediator approach resolves the complexity of peer-to-peer authorization while enabling scalable service to multiple devices.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The coordination server performs multiple functions: authentication verification, user database management, streamer selection, and stream distribution. By consolidating these diverse functions into a single multi-functional system, the patent simplifies the overall architecture while maintaining the ability to serve multiple devices with different authorization levels and stream requirements.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Adaptability or versatility

If video streams are transmitted to multiple devices simultaneously, then user coverage is improved, but latency and synchronization issues increase

Engineering Contradiction:
Improveuser coverageVSAvoidstreaming latency
Core Design Contradiction:
Adaptability or versatilityVSLoss of time

Solution Approach 1:

The coordination server performs preliminary actions by pre-authenticating user credentials and pre-selecting appropriate streamers before video transmission begins. User authentication and streamer selection are completed in advance, allowing video streams to be distributed immediately upon request without authentication delays. This preliminary processing reduces overall latency while maintaining simultaneous distribution to multiple authorized devices.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent segments the video streaming system into independent functional components: authentication module, streamer selection module, and stream distribution module. Each component operates independently and can be optimized separately. The coordination server receives authentication requests, selects from multiple available streamers based on current conditions, and distributes streams to multiple clients simultaneously, reducing bottlenecks and latency in each segment.

Inventive Principle:
Principle #1Segmentation

3Reliability

If authorization verification is performed for each device, then security is improved, but processing time increases

Engineering Contradiction:
Improveauthorization securityVSAvoidauthentication processing time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The coordination server creates and stores copies of user authentication credentials in a centralized database. Once a user's credentials are verified, the server retains this authentication information for subsequent requests. Multiple client devices can be authenticated using pre-stored credential copies rather than requiring repeated verification of original credentials, maintaining security while reducing authentication processing time for multiple devices.

Inventive Principle:
Principle #26Copying

Data Source

PatentUS12542940B2Video streaming authorization
Publication Date: 2026.02.03 PLAYBACK INC
  • US12542940B2 patent drawing
  • US12542940B2 patent drawing
  • US12542940B2 patent drawing

AI summary

A method includes for a plurality of devices, each of the plurality of devices having access to a first video stream from at least one of a plurality of streamers of the first video stream, confirming authorization to access the first video stream from one of the plurality of streamers of the first video stream, selecting a first streamer from the plurality of the streamers, receiving the first video stream from the first streamer, transmitting the first video stream to the plurality of devices having confirmed authorization.