Audio Data Stream Integration for Cross-Device User Control

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Solution Overview

Problem

Existing standardized connections in home Consumer Electronics installations do not support the transmission of user control data and renderer information between devices, limiting user interaction and control functionality, especially when decoding and rendering are implemented in separate devices.

Innovation Solution

Embed user control information within the encoded audio data stream, using an audio data processor that includes a receiver interface, metadata parser, interaction interface, and data stream generator to integrate interaction control data into the encoded audio data without decoding, allowing seamless user interaction across devices.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If user control data is transmitted separately from encoded audio data, then user interaction functionality is improved, but device complexity and interface requirements increase

Engineering Contradiction:
Improveuser interaction functionalityVSAvoidinterface requirements
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent combines user control data and encoded audio data into a single integrated data stream. The interaction control data is embedded within the audio data stream structure, allowing both audio transmission and user control functionality to coexist in one interface without requiring separate communication channels or increasing device complexity.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The audio data stream structure is designed to serve multiple functions simultaneously: it carries encoded audio data for decoding and rendering, while also transporting user control data for interaction with audio objects. This multi-functional approach eliminates the need for separate specialized interfaces.

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

2Reliability

If decoding is implemented in a separate slave device, then audio processing specialization is improved, but user control capability deteriorates

Engineering Contradiction:
Improveaudio processing specializationVSAvoiduser control capability
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The integrated data stream acts as an intermediary that bridges the master device (with user interface) and the slave decoder device. User control data is embedded in this stream, allowing the master device to maintain user control capability while the slave device performs specialized decoding functions without needing its own user interface.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The system separates functionality into master and slave devices, with the master handling user interaction and the slave handling decoding. The embedded control data in the transmission stream enables this segmentation while maintaining full user control capability across the distributed system.

Inventive Principle:
Principle #1Segmentation

3Adaptability or versatility

If multiple interfaces are provided for control data transmission, then user interaction flexibility is improved, but system complexity increases

Engineering Contradiction:
Improveuser interaction flexibilityVSAvoidsystem complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

Multiple control functions (user interaction, audio object manipulation, renderer control) are merged into a single integrated data stream. This eliminates the need for multiple separate interfaces while maintaining full flexibility in user interaction through the unified communication channel.

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentUS20250350813A1Data processor and transport of user control data to audio decoders and renderers
Publication Date: 2025.11.13 FRAUNHOFER GESELLSCHAFT ZUR FORDERUNG DER ANGEWANDTEN FORSCHUNG EV
  • US20250350813A1 patent drawing
  • US20250350813A1 patent drawing
  • US20250350813A1 patent drawing

AI summary

Audio data processor, having: a receiver interface for receiving encoded audio data and metadata related to the encoded audio data; a metadata parser for parsing the metadata to determine an audio data manipulation possibility; an interaction interface for receiving an interaction input and for generating, from the interaction input, interaction control data related to the audio data manipulation possibility; and a data stream generator for obtaining the interaction control data and the encoded audio data and the metadata and for generating an output data stream, the output data stream having the encoded audio data, at least a portion of the metadata, and the interaction control data.