Disclosed is a laser irradiation state diagnosing method which allows accurately diagnosing a laser irradiation state. When irradiating a laser beam so that an irradiation spot scans the surface of the irradiation object, acoustic information in vicinity of the irradiation spot is acquired. And based on characteristics of the acoustic information, such as an intensity of a component of a specific frequency band or a frequency band distribution, a state of peeling of the adhered substances existing on the surface of the irradiation object is determined.

Disclosed is a laser irradiation state diagnosing method which allows accurately diagnosing a laser irradiation state. When irradiating a laser beam so that an irradiation spot scans the surface of the irradiation object, acoustic information in vicinity of the irradiation spot is acquired. And based on characteristics of the acoustic information, such as an intensity of a component of a specific frequency band or a frequency band distribution, a state of peeling of the adhered substances existing on the surface of the irradiation object is determined.

Provided is a mask apparatus. The mask apparatus includes a mask body in which a microphone and a speaker are installed, a face guard coupled to a rear surface of the rear body so as to be in close contact with a user's face and having a breathing space therein, a pressure sensor installed in the mask body to measure a pressure of the breathing space, and a controller configured to compare a current pressure value measured by the pressure sensor to a reference pressure value and control a voice output of the speaker based on a difference between the current pressure value and the reference pressure value.

Provided is a mask apparatus. The mask apparatus includes a mask body in which a microphone and a speaker are installed, a face guard coupled to a rear surface of the rear body so as to be in close contact with a user's face and having a breathing space therein, a pressure sensor installed in the mask body to measure a pressure of the breathing space, and a controller configured to compare a current pressure value measured by the pressure sensor to a reference pressure value and control a voice output of the speaker based on a difference between the current pressure value and the reference pressure value.

Disclosed herein is a system and methods for ear canal deformation based user authentication using in-ear wearables. This system provides continuous and passive user authentication and is transparent to users. It leverages ear canal deformation that combines the unique static geometry and dynamic motions of the ear canal when the user is speaking for authentication. It utilizes an acoustic sensing approach to capture the ear canal deformation with the built-in microphone and speaker of the in-ear wearable. Specifically, it first emits well-designed inaudible beep signals and records the reflected signals from the ear canal. It then analyzes the reflected signals and extracts fine-grained acoustic features that correspond to the ear canal deformation for user authentication.

Disclosed herein is a system and methods for ear canal deformation based user authentication using in-ear wearables. This system provides continuous and passive user authentication and is transparent to users. It leverages ear canal deformation that combines the unique static geometry and dynamic motions of the ear canal when the user is speaking for authentication. It utilizes an acoustic sensing approach to capture the ear canal deformation with the built-in microphone and speaker of the in-ear wearable. Specifically, it first emits well-designed inaudible beep signals and records the reflected signals from the ear canal. It then analyzes the reflected signals and extracts fine-grained acoustic features that correspond to the ear canal deformation for user authentication.

A sound component assembly includes: a sealing portion provided in a sound passage connected to a sound hole of an electronic device to surround a portion of the sound passage and contact at least a portion of a printed circuit board (PCB) having a sound module mounted thereon; and a cover portion disposed to face the PCB outside the sealing portion, wherein the sealing portion may include a first material, the cover portion may include a second material, and the second material may have a greater hardness than a hardness of the first material.

The present invention relates generally to the field of accessories for musical instruments and specifically to a guitar microphone holder. The holder has a body, a microphone mount attached to a central portion of the body and two arms that extend downwardly from the central portion. The body and arms of the device further resemble one or more musical notes. The holder is flexible, such that it applies a compression force that retains the device on the musical instrument.

A computer implemented method includes: capturing an ambient sound event; determining whether the ambient sound event matches at least one of a plurality of pre-identified sound events stored in a computer storage; generating a prompt via the user interface for a user to confirm that a response is needed; determining whether to initiate a response based on the user's response to the prompt.

A computer implemented method includes: capturing an ambient sound event; determining whether the ambient sound event matches at least one of a plurality of pre-identified sound events stored in a computer storage; generating a prompt via the user interface for a user to confirm that a response is needed; determining whether to initiate a response based on the user's response to the prompt.