Matches 1 - 50 out of 118 1 2 3 >
Match Document Document Title
7418103 System and method for controlling states of a device  
A system and method for automatically changing a state of a device coupled to a headphone device is provided. The system comprises a means for detecting if at least one earpiece of the headphone...
7401519 System for monitoring exposure to impulse noise  
In one embodiment, a system for monitoring exposure to impulse noise includes a sound-sensing device, such as a microphone or other type of pressure transducer, operable to sense impulse noise, and...
7367422 System and method for providing passive noise reduction  
A passive noise reduction apparatus has a headset with at least one ear cup attached to the headset, the ear cup having an ear side and a shell side. An inner shell, having a cup side and an outer...
7352871 Apparatus for communication and reconnaissance coupled with protection of the auditory system  
A method and apparatus are disclosed for listening to ambient sounds, engage in face-to-face communication, listen to and transmit voice communications, while also protecting the auditory system...
7327850 Supplying electrical power  
A power supply includes a battery source supplying power and a voltage converter circuit. The voltage converter circuit converts the power to the input voltage supplied to other circuitry. The...
7317802 Active-noise-reduction headsets with front-cavity venting  
Active-noise-reduction (ANR) headsets protect the hearing of their users from loud persistent noises, such as airplane engines and construction equipment. These headsets generally include ear...
7308106 System and method for optimized active controller design in an ANR system  
A tailored active noise control design method is presented that provides for improved noise attenuation performance for each individual user and improved hearing protection in a specified noise...
7289636 Electronic earplug for monitoring and reducing wideband noise at the tympanic membrane  
An electronic earplug for wideband control of pressures at the tympanic membrane is presented. A unique methodology of determining effective component placement inside an earplug that provides...
7248706 Audio-signal detecting device  
An audio-signal detecting device to be disposed in a user's earmuffs for protecting his eardrums against noise of high-decibel level is comprised of a receiving unit, a first audio-signal...
7231037 Active audio compressing in telecommunication  
An output reducing system for a telephone system, e.g., implemented in a headset, includes an input line and an output line, wherein the input line transmits an incoming signal to an output...
7177433 Method of improving the audibility of sound from a loudspeaker located close to an ear  
A method and apparatus for improving the audibility of sound from a loudspeaker located close to an ear, comprises the steps of detecting ambient acoustic noise arriving from other sound sources...
7151835 Personal noise monitoring apparatus and method  
The present invention relates to a method, system and device for monitoring noise received by individuals operating in noisy environments. The device comprises a substantially credit card size...
7110551 Adaptive personal active noise reduction system  
An improved active noise reduction system which has a transducer, an electro-acoustic sensing means including adjacent to the transducer, an attenuation means with electro-acoustic sensing means to...
7103188 Variable gain active noise cancelling system with improved residual noise sensing  
An active noise cancellation system includes a series of features for more effective cancellation, greater reliability, and improved stability. A particular feature adapted for headset systems...
7054450 Method and system for ensuring audio safety  
The invention concerns a method ( 200 ) and a system ( 100 ) for ensuring audio safety in an audio device ( 110 ). The system includes a processor ( 112 ), a sensor ( 116 ), an analog safety...
7039195 Ear terminal  
Ear terminal comprising a sealing section ( 2 ) for arrangement in the meatus ( 3 ) of a human, comprising: an inner microphone (M 2 ) having a sound inlet (S 2 ) for being directed,...
7006650 Device for attenuating sound on the human ear  
A device for attenuating sound on the human ear, especially for preventing sleep disturbances caused by noise and other sounds. The device for attenuating sound has good damping properties and also...
7003123 Volume regulating and monitoring system  
A volume controlling system and method for regulating the output volume of a headset in order to protect the hearing ability of a user. The system includes a volume sensor/controller for monitoring...
6961436 Noise-protecting arrangement for ear protector  
A noise-protecting arrangement for ear protector includes an audio-frequency receiving unit, a first audio-frequency amplifying unit, a volume control amplifying unit, a current amplifying unit, a...
6941161 Microphone position and speech level sensor  
Improper microphone position and speech level on a telephone headset is sensed by comparison of a speech envelope to multiple signal threshold levels. A first threshold is used to determine whether...
6898290 Adaptive personal active noise reduction system  
An improved personal noise attenuation system which attenuates both tonal and broadband sound and which includes a spatially adjustable acousto-electric sensor and attenuation means including both...
6831984 Noise reducing  
A module adapted for use in a noise reduction headset earcup has an enclosure having walls separating an interior of the enclosure from an exterior of the enclosure outside the earcup. There is a...
6826287 Earmuff with controlled leak  
An acoustic earmuff device is provided comprising a rigid cup, including inner and outer surfaces, a sound channel means disposed through said cup shaped portion, and a plate means operatively...
6801629 Protective hearing devices with multi-band automatic amplitude control and active noise attenuation  
A noise attenuating system includes a core portion adapted to actively filter sound waves into various bands, passing only those bands corresponding to safe amplitude sounds to a wearer's ear...
6768803 Method and apparatus for selective acoustic signal filtering  
The present invention relates to a method and apparatus for performing selective acoustic signal filtering. The apparatus comprises two acoustic ports, an electrical output port and an acoustic...
6661901 Ear terminal with microphone for natural voice rendition  
Ear terminal and ear terminal system, in which at least one ear terminal includes a sealing section ( 2 ) arranged for use in the ear meatus ( 3 ) of a human, including an inner microphone (M 2 )...
6625277 Low current signal compression circuit  
A low voltage and low current compression circuit for connection between a telephone receiver and a telephone headset earphone, the circuit having an operational amplifier with variable gain, the...
6567524 Noise protection verification device  
Ear protecting device with a sealing section for acoustically sealing the meatus of a human, includes a sound generator with a sound outlet for being directed toward the user meatus; an inner...
6463316 Delay based active noise cancellation for magnetic resonance imaging  
System and method for actively canceling the acoustic noise generated by changes in the electric current within the gradient coils of a magnetic resonance imager based on the finding that the...
6449806 Head strap for headphones or hearing protector  
A head strap for a set of headphones or hearing protector s with two ear members comprises two almost parallel wire arcs ( 18, 19 ) for connecting the two ear members. The two wire arcs ( 18, 19 )...
6442279 Acoustic conditioner  
An acoustic conditioning apparatus. The mechanism includes an attenuator to limit excessive noise levels. The attenuator includes a circuit for compressing an output sound pressure level below a...
6278786 Active noise cancellation aircraft headset system  
An active noise cancellation aircraft headset system. A speaker is mounted within each earcup of a headset for receiving and acoustically transducing a composite noise cancellation signal. A...
6122383 Device for reducing noise  
A device is provided for reducing noise in the human ear having a microphone which picks up the noise and a reproduction transducer to which a noise compensation signal is fed via a compensation...
6118878 Variable gain active noise canceling system with improved residual noise sensing  
An active noise cancellation system includes a series of features for more effective cancellation, greater reliability, and improved stability. A particular feature adapted for headset systems...
6091825 Sound baffling device  
A sound baffling device comprising an enclosure containing a homogeneous means for attenuating sound, the shape and composition of said enclosure crafted to vary the sound baffling characteristics...
6078672 Adaptive personal active noise system  
An improved personal noise attenuation system which attenuates both tonal and broadband sound and which includes a spatially adjustable acousto-electric sensor and attenuation means including both...
6058194 Sound-capture and listening system for head equipment in noisy environment  
The system of the invention includes a sound-capture and listening system for a helmet in a noisy environment, and is characterized in that it includes, on the sound-capture side, at least one...
6041126 Noise cancellation system  
A noise controlled type handset processes the output of non-directional noise detector installed outside of the handset by a first adaptive filter, delivers a control sound from a control speaker,...
6035047 System to block unwanted sound waves and alert while sleeping  
A cordless, wireless headset to block unwanted sound waves and/or noise from entering the ears of a user. The headset (FIG. 5) contains an electronic receiver, an audible tone/alert generator,...
5987144 Personal active noise cancellation method and device having invariant impulse response  
A selected electrical signal is first applied to the input of a source (30) to determine at least the impulse response (H), over a predetermined time, between the source output and the input of...
5970795 Apparatus and method for testing attenuation of in-use insert hearing protectors  
The system is designed for the purpose of providing a means of conducting objective assessment of the actual or "real world" attenuation which is provided by insert-type hearing protection (IHP)...
5970155 Headset for hearing protectors  
The invention relates to a headset (1) for a hearing protector provided with a padding part (12) having an essentially elliptical ear opening (18). The headset comprises a microphone (2), an...
5815582 Active plus selective headset  
An active plus selective headset system for provision of active attenuation of broadband noise as well as speech filtering comprising a headset with reference microphones, residual microphones and...
5748752 Adaptive voice enhancing system  
A transducer/transmitter captures not only the acoustic signal in the voice band, as in the prior art, but also an acoustic signal that includes audio signals outside the voice band; preferably...
5745581 Tracking filter for periodic signals  
A method for designing a frequency periodic filter with a frequency response which has a periodic bandwidth including designing a first sampled data filter whose response corresponds to a set...
5740258 Active noise supressors and methods for use in the ear canal  
A noise suppressor includes an input transducer and an output transducer adapted to be located in an ear canal. A housing is provided to support the transducers in the ear canal, and the housing...
5692056 Method and apparatus for intracranial noise suppression  
A method and apparatus for active cancellation of vibrational noise produced by a medical instrument in the head of a patient. Vibrations from the instrument, as well as vibrations in the bone...
5675658 Active noise reduction headset  
An active noise reduction headset including a headband and at least one earcup secured thereto. A microphone is mounted within the earcup for detecting and transducing acoustic pressure within the...
5668883 Headphone apparatus including an equalizer system having an open loop characteristic with a rising slope outside the cancellation band  
A headphone includes an acoustic pipe, a loudspeaker unit, a microphone unit and a feedback circuit. The acoustic pipe has an inner diameter substantially equal to that of an external auditory...
5666427 Method of and apparatus for controlling noise generated in confined spaces  
A method of and an apparatus for controlling noise generated in a confined space, being capable of reducing a radiating sound pressure generated from a main noise source to that of an optimal...
Matches 1 - 50 out of 118 1 2 3 >