US 12,440,167 B2
Real-time in-ear electroencephalography signal verification
Maansi Desai, Redmond, WA (US); Antje Ihlefeld, Redmond, WA (US); Morteza Khaleghimeybodi, Bothell, WA (US); Srinivas Kota, Redmond, WA (US); and Nava K. Balsam, Woodinville, WA (US)
Assigned to META PLATFORMS TECHNOLOGIES, LLC, Menlo Park, CA (US)
Filed by META PLATFORMS TECHNOLOGIES, LLC, Menlo Park, CA (US)
Filed on Apr. 6, 2022, as Appl. No. 17/714,971.
Prior Publication US 2023/0320669 A1, Oct. 12, 2023
Int. Cl. A61B 5/00 (2006.01); A61B 5/291 (2021.01); A61B 5/372 (2021.01); H04R 29/00 (2006.01)
CPC A61B 5/7221 (2013.01) [A61B 5/291 (2021.01); A61B 5/372 (2021.01); A61B 5/6803 (2013.01); A61B 5/6817 (2013.01); A61B 5/7405 (2013.01); H04R 29/001 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A system, comprising:
an in-ear device (IED) configured to be placed within an ear canal of a user, the IED comprising:
a speaker configured to present a calibration audio signal to the user, wherein the calibration audio signal is embedded with a predetermined audible feature; and
an in-ear electrode configured to be in contact with an inner surface of the ear canal; and
a controller configured to:
synthesize the calibration audio signal with the predetermined audible feature, wherein a phase response of the calibration audio signal and the predetermined audible feature is aligned while a magnitude of the calibration audio signal remains consistent;
instruct the speaker to present the calibration audio signal to the user;
generate neural signal data based on electrical signals from the in-ear electrode, the electrical signals corresponding to brain activity of the user in response to the predetermined audible feature;
determine a quality of the generated neural signal data; and
perform an action based on the quality of the neural signal data.