Meta platforms technologies, llc (20240331677). ACTIVE NOISE CANCELLATION USING REMOTE SENSING FOR OPEN-EAR HEADSET simplified abstract

ACTIVE NOISE CANCELLATION USING REMOTE SENSING FOR OPEN-EAR HEADSET

Organization Name

meta platforms technologies, llc

Inventor(s)

Nils Thomas Fritiof Lunner of Redmond WA (US)

Morteza Khaleghimeybodi of Bothell WA (US)

Buye Xu of Sammamish WA (US)

Sang-Ik Terry Cho of Kirkland WA (US)

Sebastian Elliot Chafe of Seattle WA (US)

Muhammad Zubair Ikram of Richardson TX (US)

ACTIVE NOISE CANCELLATION USING REMOTE SENSING FOR OPEN-EAR HEADSET - A simplified explanation of the abstract

This abstract first appeared for US patent application 20240331677 titled 'ACTIVE NOISE CANCELLATION USING REMOTE SENSING FOR OPEN-EAR HEADSET

Simplified Explanation:

This patent application describes an open-ear device that uses active noise cancellation (ANC) for a user. A sensor outside the ear measures vibrational data to predict sound pressure levels within the ear canal, allowing for the generation of audio instructions to cancel out incoming sounds.

• Sensor outside the ear measures vibrational data
• Prediction pipeline generates sound pressure predictions within the ear canal
• Audio instructions are generated to perform ANC using bone conduction and/or cartilage transducers

Key Features and Innovation:

• Utilizes a sensor outside the ear to measure vibrational data
• Predicts sound pressure levels within the ear canal
• Generates audio instructions for ANC using unique geometric data of the user's head and pinna
• Utilizes bone conduction and cartilage transducers for ANC

Potential Applications:

• Personal audio devices
• Hearing aids
• Communication devices for noisy environments

Problems Solved:

• Provides ANC without occluding the ear canal
• Customizes ANC based on individual head and pinna shape
• Improves user experience in noisy environments

Benefits:

• Enhanced noise cancellation performance
• Comfortable and non-intrusive design
• Personalized ANC experience

Commercial Applications:

• "Innovative Open-Ear ANC Technology for Personal Audio Devices"

Questions about Open-Ear ANC Technology: 1. How does the sensor outside the ear measure vibrational data? 2. What are the potential drawbacks of using bone conduction and cartilage transducers for ANC?

Original Abstract Submitted

an open-ear device performs active noise cancellation (anc) for a user. a sensor located outside an ear of a user which does not occlude an ear canal of the ear and measures vibrational data indicative of a sound pressure level at a location outside the ear, or a level of pinna vibration of the user. a prediction pipeline generates a prediction of sound pressure within the ear canal using an individualized model, taking into account the measured vibrational data and the unique geometric shape of the user's head and pinna. this sound pressure prediction is used to generate audio instructions for rendering playback at an noise cancellation source, such as a bone conduction transducer and/or cartilage transducer, to perform anc for the user by cancelling at least portion of the sound received at the ear canal.