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Searching: audio signal





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Patent # Description
US-8,306,248 Apparatus, systems and methods for relieving tinnitus, hyperacusis and/or hearing loss
A system and method for relieving tinnitus, hyperacusis, and/or hearing loss is described. One method described includes manipulating an audio signal,...
US-8,306,245 Multi-mode audio amplifiers
A multimode audio amplifier comprises: a mode controller adapted to provide a control signal; and at least one multimode module, wherein each of the multimode...
US-8,306,243 Audio device
A signal processing section 3 is set up which provides an anti-phase component signal S extracted by an anti-phase component extracting section 2 with a...
US-8,306,242 Heyser spiral low frequency correction of FIR filters
A method of operating a loudspeaker includes providing a digital audio signal and identifying a target transfer function to be applied to the signal. At least...
US-8,306,241 Method and apparatus for automatic volume control in an audio player of a mobile communication terminal
An automatic gain controller and a method using the same are provided. The automatic gain controller and method analyze background noise by operating a...
US-8,306,239 Public-address system
[Object] To downsize a power amplifier, while keeping isolation between a transmission line and ground potential. [Means to Realize Object] Two terminals (2a,...
US-8,306,238 Method and circuit for controlling an output of an audio signal of a battery-powered device
A method and a control circuit for controlling an output of an audio signal of a battery-powered device are described.
US-8,306,236 Sound field measuring apparatus and sound field measuring method
A sound field measuring apparatus includes a microphone set having a first and second microphones arranged at a prescribed interval, which collects audio...
US-8,306,233 Transmission of audio signals
In accordance with an example embodiment of the present invention, an apparatus is presented that comprises a multichannel audio transmitter which has a first...
US-8,306,232 Digital audio stereo imager
An apparatus and a method for controlling, during playback, the composition of a pair of stereo separated audio signals in a stereo sound entertainment system...
US-8,306,231 Portable device with enhanced stereo image
The invention relates to a portable device with an enhanced stereo image, and more particularly a device in which an unsymmetrical placement of loudspeakers is...
US-8,306,198 Private branch exchange
A private branch exchange (PBX) capable of transmitting and receiving an E-mail over a network is provided. The PBX includes an interface for communicating with...
US-8,306,106 Multi-edge pulse width modulator with non-stationary residue assignment
An improved method for generating pulse width modulated signals, e.g., for use in audio amplifiers, power amplifiers, etc. An input digital value is received...
US-8,305,441 Data processing apparatus
Data processing apparatus comprising a video data receiver configured to receive video data, and an audio data receiver configured to receive audio data. The...
US-8,302,860 Read head device with narrow card reading slot
A read head is positioned in a housing and configured to be coupled to a mobile device. The read head has a slot for swiping a magnetic stripe of a financial...
US-8,301,790 Synchronization of audio and video signals from remote sources over the internet
The present invention is an architecture and technology for a method for synchronizing multiple streams of time-based digital audio and video content from...
US-8,301,463 Emergency alert feature on a mobile communication device
Automatically establishing a connection with an emergency services server is provided. In response to receiving an emergency signal from a mobile communication...
US-8,301,453 Watermark synchronization signals conveying payload data
Steganographic synchronization signals (sometimes termed "orientation signals," "marker signals," reference signals," "grid signals," "calibration signals,"...
US-8,301,440 Bit error concealment for audio coding systems
A bit error concealment (BEC) system and method is described herein that detects and conceals the presence of click-like artifacts in an audio signal caused by...
US-8,301,439 Method and apparatus to encode/decode low bit-rate audio signal by approximiating high frequency envelope with...
A method of encoding a low bit-rate audio signal includes quantizing and encoding a plurality of low frequency sub-bands of an audio signal in a frequency...
US-8,301,366 Vehicle speed determination from audio input for dead reckoning determination in a portable navigation device
A portable navigation device displaying map information and navigation instructions for use in a vehicle is disclosed. The portable navigation device includes a...
US-8,301,282 Fast synthesis sub-band filtering method for digital signal decoding
In order to reproduce audio signals which have been compressed or encoded for storage or transmission using, for example, MPEG audio encoding, a synthesis...
US-8,301,281 High-frequency signal interpolation apparatus and high-frequency signal interpolation method
A favorable high-frequency signal is generated and practical high-frequency signal interpolation is implemented through simple processing. A digital audio...
US-8,301,280 Audio signal processing system
In an audio signal processing device having a plurality of tracks recording an audio signal supplied from any of a plurality of buses, when a track is selected...
US-8,301,279 Signal processing apparatus, signal processing method, and program therefor
A signal processing apparatus subjects an audio signal to musical pitch analysis using different analysis techniques for the higher and lower frequencies. When...
US-8,301,161 Method, device, and system for obtaining a mobile computing device location
One embodiment of the present invention comprises a method of determining a mobile computing device location. The method may comprise emitting at least one...
US-8,301,014 Signal recording/reproducing method and apparatus, signal record medium and signal transmission/reception...
A signal recording/reproducing method and apparatus, signal record medium and signal transmission/reception method and apparatus, whereby a signal recorded on a...
US-8,301,007 Video and audio processing system, video processing apparatus, audio processing apparatus, output apparatus,...
A video and audio processing system includes an output apparatus that outputs video data and audio data to be synchronized and reproduced; an audio processing...
US-8,300,872 Method and device for detecting a displacement and movement of a sound producing unit of a woofer
A system for adjusting a response of a loudspeaker system. The system includes a woofer installed in a housing. The woofer includes a woofer cone. A transmitter...
US-8,300,869 Lighting and audio communication system
A lighting and communication system with a horn enclosure for recessed ceiling panel or wall mounting, including a speaker with a horn expansion area to direct...
US-8,300,867 Audio/video device having a volume control function for an external audio reproduction unit by using volume...
An audio/video (A/V) device having a volume control function for external audio reproduction units by using volume control buttons of a remote controller is...
US-8,300,866 Audio/video device having a volume control function for an external audio reproduction unit by using volume...
An audio/video (A/V) device having a volume control function for external audio reproduction units by using volume control buttons of a remote controller is...
US-8,300,861 Hearing aid algorithms
The invention relates to a method of operating an audio processing device. The invention further relates to an audio processing device, to a software program...
US-8,300,860 Electret transducer with solar power
The present invention provides an electret transducer with solar power. The provided electrets transducer includes a solar power supply device, an amplifier...
US-8,300,849 Perceptually weighted digital audio level compression
The level of an audio signal can be compressed by receiving an input audio signal, determining a measure of loudness of the signal using a perceptually derived...
US-8,300,848 System and method for adjusting an audio signal
Disclosed is a system and method of adjusting a volume level for an audio signal for a communication device to comply with a quality threshold. The method...
US-8,300,847 De-pop circuit and an associated audio system
A de-pop circuit adaptable to an audio circuit is disclosed. A high-pass filter generates a high-pass output signal according to an output signal of the audio...
US-8,300,845 Electronic apparatus having microphones with controllable front-side gain and rear-side gain
An electronic apparatus is provided that has a rear-side and a front-side, a first microphone that generates a first signal, and a second microphone that...
US-8,300,844 Audible feedback of machine load
A sensor is provided in a machine having a continuously variable transmission, for example, and the amount of force exerted by the machine against a load is...
US-8,300,843 Sound effect circuit and processing method
A sound effect circuit and processing method are disclosed. An input audio signal is input to a digital sound effect unit, an output signal is generated and...
US-8,300,840 Multiple superimposed audio frequency test system and sound chamber with attenuated echo properties
A composite sound dampening structure includes a first base layer of sound dampening material extending around and against an inside surface of a container and...
US-8,300,837 System and method for compensating memoryless non-linear distortion of an audio transducer
A low-cost, real-time solution is presented for compensating memoryless non-linear distortion in an audio transducer. The playback audio system estimates signal...
US-8,300,836 Device and method for automatically testing audio player device
A method for testing an audio player device is provided. The method includes: transcribing sound signals of each of the audio files which are supposed to be...
US-8,300,835 Audio signal processing apparatus, audio signal processing method, audio signal processing program, and...
An audio signal processing apparatus includes a cutout unit, a correlation calculating unit, a spectrum calculating unit, a coefficient calculating unit, and an...
US-8,300,834 Audio signal processing device and audio signal processing method for specifying sound generating period
Even in a state that the change of an environmental noise cannot be anticipated, a sound generating period in an audio signal can be specified with high...
US-8,300,833 Multichannel spectral mapping audio apparatus and method with dynamically varying mapping coefficients
A method and circuit for deriving a set of multichannel audio signals from a conventional monaural or stereo audio signal uses an auxiliary multichannel...
US-8,300,711 Adaptive differential pulse code modulation/demodulation system and method
An adaptive differential pulse-code modulation-demodulation system and method thereof is provided. The method includes steps of modulating an analog audio input...
US-8,300,552 Network interface unit control system and method therefor
External-services data are processed for use in a user facility in a manner that enables easy user interface and control. According to an example embodiment of...
US-8,300,154 Television receiver
A television receiver cuts power supply to its built-in device which is overlapped with that of the external unit connected to the television receiver for...
US-8,300,147 System and method for in-band A/V timing measurement of serial digital video signals
A system and method for characterizing the relative offset in time between audio and video signals and enables the receiver of the audio and video signals to...
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