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7634095 Dynamic tuning of hands-free algorithm for noise and driving conditions  
A method of tuning a hands-free system in a mobile vehicle, the method including receiving a plurality of vehicle condition inputs, creating a noise parameter based on the vehicle condition inputs...
7620188 Cylinder responsive vibratory noise control apparatus  
An active vibratory noise control apparatus reduces vibratory noise which is produced in the passenger compartment of a vehicle based on vibratory noise generated by a variable-cylinder internal...
7616768 Vehicle accessory microphone having mechanism for reducing line-induced noise  
A microphone assembly includes one or more transducers positioned in one or more housings. A processing circuit is coupled to the transducer for outputting an electrical signal such that the...
7574006 Active noise controller  
An active noise controller can determine the signal transmission characteristics from the power amplifier and the speaker to the microphone without using any special external measuring instrument...
7542575 Digital sound processing system for a vehicle  
A digital sound processing system suitable for use in a vehicle comprises an interior rearview mirror assembly that includes at least a first microphone and a second microphone. The first...
7536018 Active noise cancellation system  
In an active noise cancellation system having an adaptive filter that outputs a control signal, first and second speakers that emit a canceling signal generated based on the control signal, a...
7516065 Apparatus and method for correcting a speech signal for ambient noise in a vehicle  
A speech correction apparatus includes a speaker for generating guidance speech; a microphone set at a hearing position; an acoustic-characteristic setting unit for separating ambient noise from...
7492911 Noise reducing device  
The present invention provides an active control type noise reducing device that is disposed at a sound barrier and with which can be obtained an excellent noise reduction effect with respect to...
7466838 Electroacoustic devices with noise-reducing capability  
New and improved electroacoustic devices each including at least one transducer assembly having one or more microphones typically mounted on a baffle plate and disposed in substantially the same...
7438263 Optimal aircraft window shape for noise control  
A window for a subsonic passenger aircraft that provide maximum optical visibility while minimizing the amount of exterior acoustic noise transmitted through the windows to the passenger cabin...
7440578 Vehicle-mounted three dimensional sound field reproducing silencing unit  
A vehicle-mounted three dimensional sound signal reproducing•silencing unit includes at least two speakers disposed for each of seats to be occupied by listeners so as to generate a three...
7372654 Noise reduction system, disk storage unit, hard disk drive and noise reduction method  
An active noise canceller outputs a noise pattern learning request signal to a hard disk drive causing the hard disk drive to perform a predetermined operation, receives noise at this moment...
7357220 Systems and methods for controlling acoustical damping  
A control system ( 10 ) controls a variable acoustical damping device ( 20 ) disposed in a sound producing channel ( 5 ) of a vehicle engine ( 1 ). The control system includes a controller ( 12 )...
7340064 Active noise control system  
An active noise control system is provided which cancels a noise using a secondary noise from a speaker that is operated in accordance with an output from an adaptive controller. The system is...
7327849 Energy density control system using a two-dimensional energy density sensor  
A system and method of reducing noise in an enclosure is disclosed. The method includes receiving at least one reference signal; receiving pressure signals from no more than two substantially...
7305094 System and method for actively damping boom noise in a vibro-acoustic enclosure  
A system and method for actively damping boom noise within an enclosure such as an automobile cabin. The system comprises an acoustic wave sensor, a motion sensor, an acoustic wave actuator, a...
7289635 Structural noise source predictor  
A method and system for determining locations in a design of an assembly likely to result in buzz, rattle, squeak (“BSR”), and/or other noise conditions. The invention uses a finite element...
7254240 Active noise control system  
An active noise control system is capable of canceling out noise in the passenger compartment of a vehicle based on low-frequency road noise. The active noise control system has a feed-forward...
7231052 Vibration-isolating and sound isolating system for vehicle  
An engine is supported on a vehicle body frame through an active vibration-isolating device. The vibration of the engine is prevented from being transmitted to the vehicle body frame by controlling...
7162420 System and method for noise reduction having first and second adaptive filters  
An apparatus and method for noise reduction employ a first processor having one or more channels, each channel comprising a respective first processor filter, and each channel configured to receive...
7139400 Microphone calibration for active noise control system  
An active noise control system ( 100 ) and method compensates for changes in a microphone output to maintain accurate noise control. A calibration signal reflecting a desired microphone output is...
7106867 Active noise cancellation for a vehicle induction system having selectable engine noise profile  
An active noise cancellation system ( 26 ) for controlling engine noise propagation through a vehicle induction system ( 32 ) is customizable to achieve a desired engine noise profile. A controller...
7106866 Active noise cancellation stability solution  
The method of noise attenuation comprises the steps of generating a noise canceling signal, sensing for an system condition, and ceasing the generation of the noise canceling based upon the system...
7106868 Active noise control for vehicle door noise  
An active noise control system ( 100 ) and method modifies a noise made when a vehicle closure, such as a door, hood, or trunk, closes by detecting the closure's velocity and selecting a delay time...
7099822 System and method for noise reduction having first and second adaptive filters responsive to a stored vector  
A system for microphone noise reduction includes first and second filter portions and a control processor adapted to adapt the first and second filter portions in response to a one of a plurality...
7092744 Hands-free microphone mounting  
In a microphone mounting for a hands-free system in automotive vehicles, the microphone is mounted on the seat belt. In one embodiment the microphone is seated in a sheath which is fastened to the...
7088829 Method and apparatus for producing sounds that depend on the operation of an internal combustion engine in the interior space of a motor vehicle  
An apparatus for producing sounds corresponding to the operation of an internal combustion engine in the interior space of a motor vehicle is characterized by a pressure sensor ( 20 ) that detects...
7035414 Active noise attenuation system  
An active noise attenuation system for an air induction assembly includes a housing that is mounted to a vehicle structure and a speaker assembly that is mounted within the housing to generate a...
7020288 Noise reduction apparatus  
An active noise control system includes a source unit for generating regenerative signals, an ANC unit for processing signals so as to actively cancel noise, sensors for detecting the information...
7016506 Modular active noise air filter speaker and microphone assembly  
An air induction system comprises an air induction body and air filter to provide filtered air to a vehicle engine. A microphone is disposed within the air filter. A control unit may receive...
7006807 Electronic broadcast radio skip protection  
Transitory audio information that is subject to interruption is provided without loss of content. Transitory audio information received from an audio source is audibly provided until an interrupt...
6996242 Integrated and active noise control inlet  
A modular air induction assembly comprises an air induction body, an air filter operatively attached to the air induction body, and a speaker operatively attached to the air induction body. The...
6959093 Low frequency active noise control  
A noise attenuation system ( 10 ) for an air induction system ( 12 ) includes an air inlet duct ( 16 ) having an open end ( 18 ) to draw in air and a loudspeaker ( 22 ) mounted within the inlet...
6940983 Resonator for active noise attenuation system  
An active noise attenuation system for an air induction assembly is operably connected to an engine that generates a low frequency noise having a noise profile defining a peak noise. The system has...
6917687 Active noise control using a single sensor input  
An active noise control system ( 20 ) includes a controller ( 34 ) that receives a signal from a single pressure sensor ( 36 ). The controller ( 34 ) estimates an engine speed of an engine ( 30 )...
6912286 Active noise cancellation system with integrated horn function  
An active noise cancellation system has a speaker which is utilized to generate sound to cancel engine noise, as is known. An operator horn switch communicates with a control for the active noise...
6901147 Three-dimension active silencer  
A three-dimension active silencer includes a measuring unit for detecting a signal relating to a sound radiated from a target sound source which is located in a closed box. A plurality of...
6898501 Apparatus for facilitating reduction of vibration in a work vehicle having an active CAB suspension system  
An apparatus and method for determining when a component of a work vehicle experiences vibration above a predetermined threshold, and responding to the vibration so that the vibration is reduced...
6898289 Integrated active noise attenuation system and fluid reservoir  
An active noise attenuation system ( 10 ) comprises a speaker ( 26 ) in communication with a flow body ( 78 ). The speaker ( 26 ) emits an output for attenuating noise from the flow body ( 78 ). A...
6891954 Vehicle-mounted noise control apparatus  
In an active noise control apparatus in which an audio signal and a noise control signal are mixed to thereby sound a loudspeaker inside a motor vehicle, a general-purpose audio head unit cannot...
6845162 Device for active sound control in a space  
The invention refers to a device for sound control in a space ( 2 ) with a sound field from at least one sound source ( 3 ). The device includes a pulse sensor ( 5 ), which provides a pulse signal...
6836706 Method of forecasting comfort inside a vehicle equipped with a mounted assembly having non-uniformities  
A method of forecasting the comfort performance in a vehicle equipped with a test mounted assembly in a selected position, traveling at speed V over smooth ground, with a maximum speed Vmax, by...
6832973 System for active noise reduction  
An apparatus and method to minimize acoustic vibration in a vehicle due to impulsive gear clash loads. Sensors are mounted on the vehicle and are used to sense vehicle vibration generated by the...
6804360 Air intake noise reduction apparatus for automotive vehicle  
An air intake noise reduction apparatus is provided which can effectively reduce air intake noise even with simple construction requiring a small number of components. Four air intake passages 24,...
6788794 Thin, lightweight acoustic actuator tile  
A thin, lightweight electroacoustic actuator device covering a large surface area providing a high piston-like output over the frequency range of from at least 30 to in excess of 500 Hz comprising...
6783195 Method and device for controlling units in a vehicle according to the level of noise  
A method and a device as well as a control unit for controlling at least one aggregate in a vehicle, the noise caused by the aggregate and/or at least one variable representing this noise being...
6775383 Adaptive vibro-acoustic attentuator for launch vehicles  
A lightweight self-contained vibro-acoustic device is disclosed for dissipating low frequency vibration and acoustic energy within the payload fairing of launch vehicles. The device can be mounted...
6775384 Environmentally robust noise attenuation system  
The air induction system comprises an air induction body with a mouth and a speaker forming an interface with the mouth. A fender portion of a vehicle at least partially covers the interface,...
6748086 Cabin communication system without acoustic echo cancellation  
A cabin communication system for improving clarity of a voice spoken within an interior cabin uses a microphone array including a first microphone, positioned at a first location within the cabin,...
6728380 Adaptive noise suppression system and method  
A system and method for suppressing cyclic noise components of a sampled sensor signal generates an error compensation signal that is subtracted from the sampled sensor signal to produce a...
Matches 1 - 50 out of 116 1 2 3 >