Wireless Audio Bud Consolidating Microphone Data for Noise Cancellation

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Solution Overview

Problem

Current wireless audio systems only transmit microphone audio data from one audio bud to the user equipment, limiting noise cancellation and missing opportunities for physiological data collection from both buds.

Innovation Solution

A method where a secondary wireless audio bud sends its microphone audio data to a primary bud, which then transmits both primary and secondary microphone audio data, along with voice accelerometer data, to the user equipment, enabling improved noise cancellation and physiological data collection.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If only one audio bud transmits microphone audio data to the user equipment, then the transmission complexity is reduced, but the noise cancellation capability and physiological data collection are limited

Engineering Contradiction:
Improvenoise cancellation capabilityVSAvoiddata transmission complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The primary audio bud acts as an intermediary device that receives microphone audio data from both the primary and secondary audio buds, consolidates this data, and transmits it to the user equipment. This mediator approach enables the system to collect physiological data and perform noise cancellation using multiple microphones while avoiding the need for each bud to independently transmit data, thus maintaining transmission simplicity.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Loss of information

If both audio buds transmit their microphone audio data separately to the user equipment, then the physiological data collection is improved, but the transmission bandwidth and energy consumption increase

Engineering Contradiction:
Improvephysiological data collectionVSAvoidenergy consumption
Core Design Contradiction:
Loss of informationVSUse of energy by moving object

Solution Approach 1:

The patent merges the data transmission function by having the primary audio bud consolidate microphone audio data from both the primary and secondary audio buds into a single transmission stream to the user equipment. This combining approach ensures that physiological data from both buds is collected and transmitted while reducing the total number of transmission channels, thereby lowering energy consumption compared to separate transmissions from each bud.

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentEP4156713B1Transmitting microphone audio from two or more audio output devices to a source device
Publication Date: 2025.01.15 APPLE INC
  • EP4156713B1 patent drawingFigure 1
  • EP4156713B1 patent drawingFigure 2
  • EP4156713B1 patent drawingFigure 3

AI summary

The exemplary embodiments relate to implementing techniques for transmission of audio data from both of a pair of audio output devices to a user equipment (UE). A first wireless audio output device establishes a communication link to a source device using a wireless communication protocol, receives source audio data from the source device, receives secondary audio data from a second wireless audio output device and combines primary audio data from the first wireless audio output device with the secondary audio data into a consolidated audio packet. The consolidated packet is then transmitted to the source device.