Primary Headset Packet Compensation for Multi-Device Audio

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Solution Overview

Problem

In multi-speaker audio systems, there is a high probability of audio packet loss due to power imbalances and interference from human presence, leading to inefficiencies in data packet transmission and reception, particularly in relay systems where the primary device must relay packets twice, increasing power consumption and bandwidth requirements.

Innovation Solution

Implementing a system where the primary device identifies missed data packets and transmits them to the secondary device, allowing the secondary device to associate these packets with appropriate timeslots, thereby reducing the need for the primary device to relay all packets and minimizing power and bandwidth usage.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the primary device relays all audio packets to the secondary device, then complete audio transmission is achieved, but power consumption and bandwidth requirements increase

Engineering Contradiction:
Improvecomplete audio transmissionVSAvoidpower consumption
Core Design Contradiction:
ReliabilityVSUse of energy by moving object

Solution Approach 1:

The patent extracts only the missed packets from the complete audio stream and transmits them separately to the secondary device, rather than relaying all packets. This selective transmission approach maintains audio completeness while significantly reducing power consumption and bandwidth usage.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The secondary device captures copies of audio packets directly from the air (over-the-air capture) in parallel with receiving relayed packets from the primary device. This copying mechanism allows the system to obtain packet status information without requiring the primary device to transmit everything.

Inventive Principle:
Principle #26Copying

2Reliability

If the primary device relays all audio packets to the secondary device, then complete audio transmission is achieved, but bandwidth requirements increase

Engineering Contradiction:
Improvecomplete audio transmissionVSAvoidbandwidth requirements
Core Design Contradiction:
ReliabilityVSQuantity of substance

Solution Approach 1:

The patent extracts only the missed packets from the complete audio stream and transmits them separately to the secondary device, rather than relaying all packets. This selective transmission approach maintains audio completeness while significantly reducing power consumption and bandwidth usage.

Inventive Principle:
Principle #2Taking out (Extraction)

3Quantity of substance

If the secondary device captures packets over the air, then bandwidth is reduced, but packet loss occurs due to power imbalances and interference

Engineering Contradiction:
Improvebandwidth usageVSAvoidpacket capture reliability
Core Design Contradiction:
Quantity of substanceVSReliability

Solution Approach 1:

The patent merges two packet acquisition methods: over-the-air capture by the secondary device and relayed transmission from the primary device. By combining these approaches, the system benefits from the bandwidth efficiency of direct capture while using relayed packets to compensate for any missed transmissions.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The system implements feedback mechanisms where the secondary device reports which packets it successfully captured and which were missed. This feedback allows the primary device to identify and retransmit only the missing packets, ensuring complete audio delivery despite wireless interference.

Inventive Principle:
Principle #23Feedback

4Reliability

If the primary device relays packets twice, then the secondary device receives complete audio, but device complexity and power consumption increase

Engineering Contradiction:
Improveaudio delivery completenessVSAvoidrelay operation complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent extracts only the missed packets from the complete audio stream and transmits them separately to the secondary device, rather than relaying all packets. This selective transmission approach maintains audio completeness while significantly reducing power consumption and bandwidth usage.

Inventive Principle:
Principle #2Taking out (Extraction)

Data Source

PatentUS10652660B2Data packet compensation in multi-device media systems
Publication Date: 2020.05.12 MICROCHIP TECHNOLOGY INC
  • US10652660B2 patent drawing
  • US10652660B2 patent drawing
  • US10652660B2 patent drawing

AI summary

Various embodiments relate to data packet compensation in multi-device media systems. A primary headphone device may include one or more communication interfaces configured to communicate with an audio source and a secondary headphone device. The primary headphone device may further include communication logic configured to transmit information to the secondary headphone device identifying one or more data packets received by the primary headphone device. The communication logic may also be configured to receive reporting information identifying one or more data packets missed by the secondary headphone device. Also, the communication logic may be configured to transmit compensation information for the one or more data packets missed by the secondary headphone device.