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8798282 Active noise reduction adaptive filter leakage adjusting  
An active noise reduction system using adaptive filters. A method of operation the active noise reduction system includes smoothing a stream of leakage factors. The frequency of a noise reduction...
8718292 Noise reduction device and noise reduction system  
It includes a microphone for detecting noise emitted from a noise source, a noise controller for generating control sound signal to reduce noise detected by the microphone based on information from...
8712070 Simultaneous enhancement of transmission loss and absorption coefficient using activated cavities  
A method and apparatus for providing simultaneous enhancement of transmission loss and absorption coefficient using activated cavities is presented. A layer of material is provided, and a backing...
8705761 Entertainment system and earphone  
There is provided an entertainment system comprising at least one seat, an electronic unit (100) for active noise reduction in the seat and at least one headphone (300). The headphone has an...
8705753 System for processing sound signals in a vehicle multimedia system  
The present invention relates to a method for processing sound signals in a vehicle multimedia system. A sound signal is recorded by a microphone. A voice signal component resulting from...
8682000 Method and device for narrow-band noise suppression in a vehicle passenger compartment  
A method and a device for suppressing noise in the passenger compartment of a vehicle, which include at least one transducer, a programmable computer, at least one acoustic sensor, the computer...
8666088 Tunable, sound enhancing air induction system for internal combustion engine  
A tunable, sound enhancing air induction system for an internal combustion engine includes an air supply duct extending between an air cleaner and a throttle body, and an acoustic amplifier mounted...
8634571 Active type acoustic control system  
In an acoustic control system an operation range of an active type noise control device (an ANC device) and an operation range of an active type effect sound control device (an ASC device) are...
8625812 Acoustic dampening compensation system  
An acoustic management system configured to compensate for acoustical dampening is provided. The system includes a microphone configured to detect a first acoustic signal from an acoustic...
8625775 Method and system for reducing echo and noise in a vehicle passenger compartment environment  
An echo cancelling algorithm in a communication device initializes a step size value used in an adaptive echo filter based on a background noise signal power level relative to a power level of a...
8625815 Vehicular rearview mirror system  
A rearview mirror system for a vehicle includes an interior rearview mirror assembly including a control. The interior rearview mirror assembly may include a video display device operable to...
8607057 Secure outsourced aggregation with one-way chains  
Secure outsourced aggregation of data using one-way chains is discussed in this application. Each input data source such as a sensor generates a Verifiable Synopsis (“VS”) which includes sensor dat...
8588429 Sound device and sound control device  
The sound device includes an audio-information output unit, an analysis unit, an audio-division-spectrum output unit, a noise-division-spectrum output unit and a correction unit. The analysis unit...
8577045 Apparatus and method for encoding a multi-channel audio signal  
An encoding apparatus comprises a frame processor (105) which receives a multi channel audio signal comprising at least a first audio signal from a first microphone (101) and a second audio signal...
8565442 Noise reduction device  
A noise reduction device including a noise detection microphone including a high-frequency noise detection microphone and a low-frequency noise detection microphone for respectively detecting a...
8559648 Active noise control using bass management  
An active noise cancellation system reduces, at a listening position, the power of a noise signal being radiated from a noise source to the listening position. The system includes an adaptive...
8542846 Vehicle sound enhancing system and method of producing  
Methods, systems and storage media are disclosed for enhancing the sounds of any vehicle, motorized conveyance, vehicle simulator, video game or vehicle like device by feeding the output of a...
8542844 Sound modification system and method  
A sound modification system and a method of managing sound in a vehicle. The system includes an active noise reduction (ANR) controller, an engine sound enhancement (ESE) controller and a sound...
8532828 Gearbox noise reduction by electrical drive control  
A system for damping audible noise from a drive train. One embodiment is a system with an audible noise signal from a drive train wherein a damping circuit produces a damping torque that is a phase...
8526627 Noise reduction device  
A noise reduction device of the present invention comprises a control filter unit for generating a control sound signal to cancel out a noise, a control speaker for outputting a control sound...
8509452 Noise reduction apparatus and audio reproduction apparatus  
A noise reduction apparatus includes: a speaker with a speaker unit held by holding means to make it possible to mix sounds emitted from front and rear of a vibration plate of the speaker; a...
8494175 Noise reduction device and noise reduction system  
A noise reduction device is disclosed, in which noise reduction device, a controlling sound generator outputs a white noise generated by a white-noise generator, and this white noise is sensed by...
8472635 System and method for countering noise when operating an address system in a passenger transport  
A system for countering ambient noise when operating an address system in at least one compartment of a passenger transport unit includes: (a) a noise control unit; and (b) at least one memory unit...
8462193 Method and system for processing audio signals  
A multimedia conferencing system includes a loud speaker system, one or more microphones for receiving a local audio signal and a remote audio signal, a state machine and an echo canceller that...
8451143 Vehicle presence notification apparatus  
A vehicle presence notification apparatus notifies a presence of a vehicle by providing easily-perceivable and less uncomfortable notification sound outside of the vehicle. The vehicle presence...
8421641 Object detection system and method using sub-sampling  
An object detection system, controller, and method using sub-sampling for detecting a presence of an object at the location. An electrode arranged near the location radiates an electric field that...
8416963 System for providing a personalized driving sound  
The present invention relates to a system for providing a personalized driving sound by using an active sound design. The system includes a sound design tool, a memory card, and an audio system....
8401204 Method for the active reduction of sound disturbance  
A method and a system for the active reduction, at a predetermined area, of the energy of a sound signal (dk(n)), also called a diffused noise signal, generated at the area by a primary signal...
8384528 Method and apparatus for selectively varying motor vehicle sounds  
An apparatus and method for customizing the sound emitted from an automotive vehicle during operation. Specifically, the vehicle operator uses a controller to vary the sound emitted from the engine...
8379879 Active noise reduction system  
An active noise reduction system is provided for receiving an audio input signal and a noise interference signal and calculating an audio broadcasting signal according to a Feedback Filtered-X...
8378804 Active acoustic control apparatus  
An active acoustic control apparatus includes an alert sound signal generator configured to generate an alert sound signal. An alert sound output device is configured to output an alert sound to an...
8374356 Noise canceling apparatus and noise canceling method  
Disclosed herein is a noise canceling apparatus including: a microphone configured to pick up ambient sound as noise; a first signal generator configured to receive a signal from the microphone to...
8340963 Echo suppressing system, echo suppressing method, recording medium, echo suppressor, sound output device, audio system, navigation system and mobile object  
An echo suppressing system includes: a sound output device for outputting sound based on a sound signal, including a passing section for allowing passage of a component of a different frequency...
8335318 Active noise reduction adaptive filtering  
An active noise reduction system that reduces the incidence of divergence in the presence of high amplitude interfering noise. A limited frequency range threshold is established.
8325938 Handsfree call apparatus, acoustic reproducing apparatus with handsfree call function, and handsfree call method  
A handsfree call apparatus includes: a speaker held in the vicinity of a user's ear by a holding unit with a speaker unit thereof not being attached to a baffle board so as to mix sounds emitted...
8315385 Digital entroping for digital audio reproductions  
The present invention provides a system and method for introducing white noises into a digital audio signal so that there is progressive and cumulative degradation in audio quality after each...
8306234 System for improving communication in a room  
Improving the acoustical communication between interlocutors in at least two positions in a room includes generating electrical signals representative of acoustical signals present at the...
8300842 Robust system for sound enhancement from a single engine sensor  
A noise enhancement system for an automobile utilizes a single input of engine speed to derive a control signal used to drive a speaker. The speaker generates sounds that enhance or replicate the...
8285545 Voice command acquisition system and method  
A voice command acquisition method and system for motor vehicles is improved in that noise source information is obtained directly from the vehicle system bus. Upon receiving an input signal with a...
8280069 Noise reduction apparatus  
In a noise reduction apparatus for controlling noise up to a predetermined upper limited frequency, a distance from a noise source to control point X is made larger than a distance obtained by...
8270628 Method and system for actively influencing noise, and use thereof in a motor vehicle  
Method for influencing noise, wherein a noise source (16), in particular an engine in a motor vehicle, generates the noise with a substantially periodically variable excitation, and wherein a...
8270627 Adaptive noise control system  
An adaptive noise control system is deployed in a box-like structure positioned within the transfer path along which the noise is being transmitted from the source of the generated noise to the...
8270625 Secondary path modeling for active noise control  
Methods for modeling the secondary path of an ANC system to improve convergence and tracking during noise control operation, and their associated uses are provided. In one aspect, for example, a...
8260495 Method for reducing audible noise in a vehicle  
A method for reducing noise in a vehicle by adjusting the rotational speed of various rotational components.
8259958 Engine sound control apparatus and control method  
An engine sound control apparatus capable of arranging a sound of a frequency that is lower than the fundamental-order frequency of the engine. The engine sound control apparatus detects the...
8223985 Masking of pure tones within sound from a noise generating source  
A method and system for masking pure tones within sound generated from a noise generating source. The method includes detecting one or more pure tones within sound being generated from the noise...
8213628 Listening device for clear perception of sound signals in a noisy environment  
The invention concerns a listening device (1) for transmitting electroacoustic signals comprising an earphone (2) and means for connecting said earphone (2) with a remote electroacoustic source...
8208655 Wireless resonating surface speaker and method of using the same  
A wireless speaker and mounting system for use with a resonating surface of an automobile includes a wireless speaker mechanism including a vibrator, the wireless speaker mechanism configured to...
8208654 Noise cancellation for wireless audio distribution system  
A wireless audio distribution system may have a wireless transmitter, responsive to a plurality of audio input channels, for transmitting signals carrying the audio, a receiver, responsive to the...
8208651 Active sound blocker  
A noise reduction system for actively blocking a noise source for a means of transport. The noise reduction system comprises at least one counter sound source and at least one intensity sensor. The...
Matches 1 - 50 out of 210 1 2 3 4 5 >