Redundant Audio Transmission Switching via Broadband Interlinks

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Solution Overview

Problem

Existing communication systems with redundant transmission chains face issues in maintaining consistent audio signal availability due to varying error detection and switching times across receiving units, leading to potential signal outages and inconsistent conference signals.

Innovation Solution

Implementing a communication system with interconnected subscriber-side and further processing units via broadband transmission interlinks, including error detection and switching units, to automatically switch between redundant transmission chains and ensure seamless audio signal transmission.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If error states are transmitted to receiving subscriber units for autonomous switching decisions, then switching capability is improved, but transmission bandwidth and complexity increase

Engineering Contradiction:

Improveswitching capabilityVSAvoidtransmission complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

A dedicated error detection unit is introduced as an intermediary component between the transmission chain and subscriber units. This unit autonomously monitors transmission errors and controls switching operations, eliminating the need for complex error state transmissions to subscriber units while maintaining reliable switching capability.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Ease of operation

If each receiving subscriber unit makes independent switching decisions, then autonomy is improved, but timing consistency deteriorates

Engineering Contradiction:

Improveautonomous decision-makingVSAvoidtiming variation

Core Design Contradiction:

Ease of operationVSLoss of time

Solution Approach 1:

The error detection and switching control functions are merged into a centralized error detection unit that serves the entire transmission chain. This consolidation ensures that all subscriber units receive switching commands simultaneously, eliminating timing variations while maintaining autonomous error response capability.

Inventive Principle:

Principle #5Merging (Combining)

3Adaptability or versatility

If switching occurs at receiving subscriber units, then flexibility is improved, but switching speed deteriorates

Engineering Contradiction:

Improveswitching flexibilityVSAvoidswitching speed

Core Design Contradiction:

Adaptability or versatilityVSSpeed

Solution Approach 1:

The error detection unit continuously monitors transmission chains in advance and maintains readiness to switch. When errors are detected, the pre-configured switching mechanism can immediately activate without requiring processing delays at subscriber units, thereby improving switching speed while preserving flexibility through the error detection unit's autonomous control capability.

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentEP4498654B1Communication system

Publication Date: 2026.04.29 FREQUENTIS

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AI summary

Communication system (100) and method for transmitting audio signals between two or more subscriber units (T1, T2, T3) via at least a first transmission chain (A) and a second transmission chain (B), wherein each subscriber unit (T1, T2, T3) is connected to a subscriber-side processing unit (1A) of the first transmission chain (A) and a subscriber-side processing unit (1B) of the second transmission chain (B), wherein at least one subscriber-side processing unit (1A) and/or at least one further processing unit (2A) of the first transmission chain (A) are interconnected with at least one subscriber-side processing unit (2B) and/or at least one further processing unit (2B) of the second transmission chain (B) via at least one broadband transmission interlink.