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Methods, apparatus and systems for biometric processes

A technology of biometrics and authentication systems, applied in the field of biometrics processing, capable of solving problems such as changes and changes in acoustic responses

Pending Publication Date: 2020-02-21
CIRRUS LOGIC INT SEMICON
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, the acoustic response may change in the long term as the user ages and the shape of the ear canal changes, or in the short term as earwax builds up

Method used

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  • Methods, apparatus and systems for biometric processes
  • Methods, apparatus and systems for biometric processes
  • Methods, apparatus and systems for biometric processes

Examples

Experimental program
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Embodiment Construction

[0018] As described above, ear biometric data may be obtained by generating an acoustic stimulus and detecting the acoustic response of the ear to the acoustic stimulus. One or more features can be extracted from the response signal and used to characterize the individual.

[0019] Acoustic stimuli can be generated and responses measured using personal audio equipment. As used herein, the term "personal audio device" is any electronic device that is adapted or configurable to provide audio playback to substantially only a single user. exist Figure 1a to Figure 1e Some examples of suitable personal audio devices are shown in .

[0020] Figure 1a A schematic view of a user's ear is shown, comprising the (outer) pinna or concha 12a and the (inner) ear canal 12b. A user wears a personal audio device 20, including circumaural earphones, on the ear. The earphone includes a housing that generally surrounds and surrounds the outer ear 12a, thereby providing a physical barrier b...

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PUM

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Abstract

Embodiments of the invention relate to methods, apparatus and systems for biometric processes. The methods include updating stored ear model data for a user following successful authentication of theuser. The ear model data may be acquired using a personal audio device that generates an acoustic stimulus and detects a measured response. The acquisition of the ear model data may be responsive to adetermination that the personal audio device is inserted into or placed adjacent to the user's ear. The acquisition of the ear model data may also be responsive to the determination that the personalaudio device has not been removed from or moved away from the user's ear.

Description

technical field [0001] Embodiments of the present disclosure relate to methods, devices, and systems for biometric processing, and in particular, to methods, devices, and systems for biometric processing that include measured user ear responses to acoustic stimuli. Background technique [0002] The acoustic properties of either the outer part of a user's ear (called the pinna or concha) or the acoustic properties of the ear canal, or both, are known to vary widely between individuals and can therefore be used as a biometric to identify a user. Determination. One or more speakers or similar transducers located near or within the ear generate the acoustic stimuli, and one or more microphones similarly located near or within the ear detect the ear's acoustic response to the acoustic stimuli. One or more features can be extracted from the response signal and used to characterize the individual. [0003] For example, the ear canal is a resonant system, so one feature that can b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F21/32G06F21/40
CPCG06F21/40G10L17/10G06F21/32G10L17/24G10L17/00H04R1/1041G10K2210/3027G10K11/17823G10K2210/1081G10K2210/3026G06F16/2379
Inventor J·P·莱索
Owner CIRRUS LOGIC INT SEMICON