An eye and ear protection system includes a pair of ear muffs connected together by a strap, the ear muffs include a slot in their forward side that is connected to a cavity within the ear muffs. The arms of a pair of glasses are positionable within the slots and allow a user to move the glasses between an in the line-of-sight position and an out of the line-of-sight position. The ear muffs also include one or two doors that can be opened, to allow the user to hear sounds in the environment, and closed to protect the user from loud noises in the environment. This system improves comfort and allows the user to selectively deploy hearing protection and/or eye protection without the need to remove the system from their head which saves time and reduces the potential for losing or misplacing either the hearing or eye protection.

An eye and ear protection system includes a pair of ear muffs connected together by a strap, the ear muffs include a slot in their forward side that is connected to a cavity within the ear muffs. The arms of a pair of glasses are positionable within the slots and allow a user to move the glasses between an in the line-of-sight position and an out of the line-of-sight position. The ear muffs also include one or two doors that can be opened, to allow the user to hear sounds in the environment, and closed to protect the user from loud noises in the environment. This system improves comfort and allows the user to selectively deploy hearing protection and/or eye protection without the need to remove the system from their head which saves time and reduces the potential for losing or misplacing either the hearing or eye protection.

The present invention discloses an audio device output energy control method for protecting hearing, the method including: step S1, obtaining energy or pressure at a speaker or at any point in a sound field from the speaker to a tympanic membrane by means of calculation or measurement, which serves as the energy or pressure at the tympanic membrane or cochlea of a user after compensation or calculation; step S2, calculating a cumulative hearing loss value according to the energy or pressure at the tympanic membrane or cochlea of the user, or calculating cumulative energy at any point in the sound field from the speaker to the tympanic membrane according to the energy or pressure at that location, and then equivalently calculating a cumulative hearing loss value at the tympanic membrane or cochlea of the user; step S3, comparing the cumulative hearing loss value with a preset hearing loss threshold, and performing step S4 if the cumulative hearing loss value reaches the hearing loss threshold; and step S4, reducing a volume of the audio device. The present invention can monitor the energy at the tympanic membrane or cochlea of the user in real time and adjust the output energy of the audio device in time, thus realizing hearing protection.

A noise sensor is disposed adjacent a speaker within an ear cup of a hearing protection device. The speaker is disposed within a speaker housing and the noise sensor is disposed within a sensor housing, the sensor housing coupled to the speaker housing such that the noise sensor and speaker remain adjacent one another. The noise sensor includes at least a microphone operably coupled to a printed circuit board. The sensor housing defines an axial bore such that the noise sensor can receive acoustic signals via the axial bore. The sensor housing can be coupled to the speaker housing such that the noise sensor is sealed therebetween and receives acoustic signals via a distal end of the axial bore opposite the speaker. A calibration tool can be disposed to the axial bore via the distal end for airtight calibration of the noise sensor.

A noise sensor is disposed adjacent a speaker within an ear cup of a hearing protection device. The speaker is disposed within a speaker housing and the noise sensor is disposed within a sensor housing, the sensor housing coupled to the speaker housing such that the noise sensor and speaker remain adjacent one another. The noise sensor includes at least a microphone operably coupled to a printed circuit board. The sensor housing defines an axial bore such that the noise sensor can receive acoustic signals via the axial bore. The sensor housing can be coupled to the speaker housing such that the noise sensor is sealed therebetween and receives acoustic signals via a distal end of the axial bore opposite the speaker. A calibration tool can be disposed to the axial bore via the distal end for airtight calibration of the noise sensor.

An ear cup for a hearing protector includes a cup-shaped outer casing, a sealing ring on a rim of the outer casing, and at least one electrical component such as a microphone. The electrical component is mounted on a flexible circuit board attached on the outer surface of the outer casing, where the outer casing includes a slit through which the flexible circuit board extends to the inside of the outer casing so as to provide electrical connections between the electrical component and an electrical circuitry inside the outer casing. Thus, there is no need for wide openings on the outer casing of the ear cup, instead only a narrow slit suffices. This facilitates achieving good noise reduction properties.

An ear cup for a hearing protector includes a cup-shaped outer casing, a sealing ring on a rim of the outer casing, and at least one electrical component such as a microphone. The electrical component is mounted on a flexible circuit board attached on the outer surface of the outer casing, where the outer casing includes a slit through which the flexible circuit board extends to the inside of the outer casing so as to provide electrical connections between the electrical component and an electrical circuitry inside the outer casing. Thus, there is no need for wide openings on the outer casing of the ear cup, instead only a narrow slit suffices. This facilitates achieving good noise reduction properties.

A magnetic field antenna that provides high efficiency and a compact form factor. Electromagnetic shielding of electrical components used in the antenna is provided, and one embodiment of the invention is a wireless battery-free communications earplug.

A motorsports helmet having an isolation mount defining a receptacle is provided. An adjustment plate is selectively disposed within the receptacle at different depths and includes an ear-cup. The ear-cup is secured relative to the adjustment plate and includes at least two degrees of freedom of movement.

A motorsports helmet having an isolation mount defining a receptacle is provided. An adjustment plate is selectively disposed within the receptacle at different depths and includes an ear-cup. The ear-cup is secured relative to the adjustment plate and includes at least two degrees of freedom of movement.