Multimedia Reproduction via Broadcast and Mobile Network Switching

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Solution Overview

Problem

Existing multimedia reproduction systems in vehicles face interruptions in radio/television service due to shadow areas within broadcasting networks, particularly when moving, as they lack the necessary information and communication modules to seamlessly switch between broadcast and mobile radio networks, limiting the effectiveness of 'service following' features.

Innovation Solution

A method and system that configures a multimedia apparatus to receive signals from both broadcast and mobile telecommunications networks, using a smartphone to decode and reproduce multimedia content via mobile networks when broadcast signal quality is poor, allowing for continuous multimedia service without requiring modifications to the infotainment system.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a vehicle uses broadcast network (radio/television) for multimedia content delivery, then the system can provide high-quality audio/video service, but the service is interrupted in shadow areas and transition areas during movement

Engineering Contradiction:

Improveservice continuityVSAvoidshadow area interference

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent combines broadcast network reception (first multimedia apparatus) with mobile network reception (second multimedia apparatus) into a unified system. The vehicle's infotainment system can switch between or simultaneously use both broadcast and mobile networks to receive multimedia content, ensuring continuous service in shadow areas where broadcast signals are unavailable.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The system is designed to perform multiple functions: receiving multimedia content via broadcast network, receiving multimedia content via mobile network, and automatically switching between these two reception modes. This multi-functionality allows the system to maintain service continuity regardless of the available network infrastructure.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Reliability

If the system switches between broadcast and mobile networks to maintain service continuity, then reliability in shadow areas improves, but device complexity increases due to requiring multiple reception modules

Engineering Contradiction:

Improveservice continuity in shadow areasVSAvoiddual network reception capability

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent introduces a switching mechanism that acts as an intermediary between the broadcast network receiver and mobile network receiver. This switching mechanism automatically selects the appropriate network based on signal quality and availability, managing the complexity of dual-network reception while maintaining service continuity.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The system continuously monitors the quality and availability of broadcast signals and automatically triggers switching to mobile network reception when broadcast signal quality deteriorates. This feedback-based automatic switching reduces the complexity of manual configuration while ensuring reliable service continuity.

Inventive Principle:

Principle #23Feedback

3Reliability

If metadata is transmitted to enable service following in broadcast networks, then service continuity during transmitter transitions improves, but the system still cannot completely eliminate interruptions in total shadow areas

Engineering Contradiction:

Improveservice following capabilityVSAvoidsignal availability in shadow areas

Core Design Contradiction:

ReliabilityVSLoss of information

Solution Approach 1:

The system pre-configures both broadcast and mobile network reception capabilities before entering shadow areas. By having the mobile network receiver ready and pre-synchronized with multimedia content information, the system can immediately switch to mobile network reception when broadcast signals are lost, eliminating interruptions that would otherwise occur in total shadow areas.

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentUS11818433B2System for the reproduction of a multimedia content using an alternative network if poor quality in first network

Publication Date: 2023.11.14 NAXOS FINANCE SA

AI summary

A method, an apparatus and a system for the reproduction of a specific multimedia content are provided. The method includes the step of acquiring one or more samples of a specific multimedia content reproduced by a mobile multimedia radio/television apparatus, where the specific multimedia content is included in a first signal emitted by a broadcast-type radio/television network, including the further step of determining an identifier of the specific multimedia content and the value of a quality parameter of the first signal. According to the value of the quality parameter of the first signal, further steps include receiving on a multimedia telephone apparatus the specific multimedia content through a second signal emitted by a cellular telephone network, sending the specific multimedia content to one or more multimedia reproduction units included in the mobile multimedia radio/television apparatus.