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Searching: audio signal





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Patent # Description
US-8,144,880 Audio amplifier capable of performing self-oscillation
An audio amplifier includes a plurality of sub-audio amplifier sets, a clock source, and a speaker. When the audio amplifier is under an audio amplify mode, the...
US-8,144,879 Method, device, encoder apparatus, decoder apparatus and audio system
A method and a device are described for processing a stereo signal obtained from an encoder, which encodes an N-channel audio signal into spatial parameters (P)...
US-8,144,854 Conference bridge which detects control information embedded in audio information to prioritize operations
Disclosed herein are methods, systems, and devices for improved audio, video, and data conferencing. The present invention provides a conferencing system...
US-8,144,836 Lifestyle multimedia security system
A method is disclosed for remote monitoring of a premises, comprising the steps of operatively coupling a geographically remote client to a security system...
US-8,144,809 Modulating apparatus, mobile communication system, modulating method, and communication method
An encoder encodes audio data and the like to generate a binary signal. A mapper converts the binary signal into a four-level symbol and outputs the four-level...
US-8,144,790 Broadcast receiver and method of processing data
A broadcast receiver, and a method of processing data are disclosed. The broadcast receiver includes a receiving unit, a RS frame decoder, a decoding unit, and...
US-8,143,620 System and method for adaptive classification of audio sources
Systems and methods for adaptively classifying audio sources are provided. In exemplary embodiments, at least one acoustic signal is received. One or more...
US-8,140,715 Virtual media input device
A virtual media device is described for processing one or more input signals from one or more physical media input devices, to thereby generate an output signal...
US-8,140,714 Media management and routing within an electronic device
A method and apparatus for intelligently routing and managing audio signals within an electronic device is disclosed. The routing is responsive to a set of...
US-8,140,342 Selective scaling mask computation based on peak detection
A set of peaks in a reconstructed audio vector S of a received audio signal is detected and a scaling mask .psi.(S) based on the detected set of peaks is...
US-8,140,331 Feature extraction for identification and classification of audio signals
Characteristic features are extracted from an audio sample based on its acoustic content. The features can be coded as fingerprints, which can be used to...
US-8,140,327 System and method for filtering and eliminating noise from natural language utterances to improve speech...
The systems and methods described herein may filter and eliminate noise from natural language utterances to improve accuracy associated with speech recognition...
US-8,140,326 Systems and methods for reducing speech intelligibility while preserving environmental sounds
An audio privacy system reduces the intelligibility of speech in an audio signal while preserving prosodic information, such as pitch, relative energy and...
US-8,140,141 Devices and methods for fluorescent inspection and/or removal of material in a sample
An apparatus is provided that includes a light-emitting component, a light-detecting component, a lock-in amplifier, a frequency generator that is operatively...
US-8,140,069 System and method for determining the audio fidelity of calls made on a cellular network using frame error rate...
The present invention provides a method and system for defining the mean opinion score (MOS) as a function of frame error rate (FER) and pilot signal strength....
US-8,139,816 Acoustic transducer
This invention relates to acoustic drivers with stationary and moving coils. Time varying signals are applied to the moving and stationary coils to control the...
US-8,139,806 Earphone for placement in an ear
An earphone which fits into an ear is disclosed. The earphone includes an electroacoustic transducer for converting an audio signal into sound and a housing for...
US-8,139,793 Methods and apparatus for capturing audio signals based on a visual image
In one embodiment, the methods and apparatuses detect an initial listening zone wherein the initial listening zone represents an initial area monitored for...
US-8,139,791 Ground referenced audio headphone amplifier with low standby current
A ground-referenced headphone amplifier includes left and right channel audio amplifiers, each including a standby mode trigger control input. A sense...
US-8,139,789 Signal amplifier circuit
A plurality of main amplifiers amplifies input audio signals with an adjustable gain. A first selector selects any of the input audio signals. An auxiliary...
US-8,139,788 Apparatus and method for separating audio signals
An audio signal separation apparatus for separating observation signals in the time domain of a mixture of a plurality of signals including audio signals into...
US-8,139,782 Modular amplification system
A system is provided for amplifying audio signals from an audio source for use on a motorcycle or other personal motorized vehicles that includes a control...
US-8,139,777 System for comfort noise injection
A noise injection system adds comfort noise to an audio signal. The system includes a background noise estimator that determines a spectral content of a...
US-8,139,775 Concept for combining multiple parametrically coded audio sources
According to the present invention, multiple parametrically encoded audio signals can be efficiently combined using an audio signal generator, which generates...
US-8,139,774 Multi-element directional acoustic arrays
An audio system including a left input channel signal, a right input channel signal, and a discrete center input channel. Circuitry removes correlated content...
US-8,139,773 Method and an apparatus for decoding an audio signal
An apparatus and method for receiving a downmix signal including at least one object signal, and a bitstream including object information and downmix channel...
US-8,139,728 Method and apparatus for telephonically accessing and navigating the internet
A method for accessing and browsing the internet through the use of a telephone and the associated DTMF signals is disclosed. The preferred embodiment provides...
US-8,139,165 Television receiver
It is an object of the present invention to provide a television receiver for discriminating a CM broadcast from a received television broadcast and controlling...
US-8,139,161 Broadband integrated tuner
A broadband integrated receiver for receiving input signals and outputting composite video and audio signals is disclosed. The receiver employs an up-conversion...
US-8,138,837 Efficient power amplifier
A dynamic power supply for N amplifiers includes first and second power boost circuits which temporarily boost the positive or negative power supply rail,...
US-8,138,407 Synchronizer for ensemble on different sorts of music data, automatic player musical instrument and method of...
In order to establish an automatic player piano and a home theater system in synchronization for ensemble, a set of playback pattern data expresses a series of...
US-8,136,178 Retractable rotating spa speaker system
A spa speaker apparatus having a housing with a speaker mounted therein, wherein the speaker can be extended and retracted with respect to the housing and the...
US-8,135,623 Method for combining data signals and video signals for transmission to video display units
A method capable of combining data signals and video signals for transmission to a video display unit. The method comprises the steps of generating a data...
US-8,135,593 Methods, apparatuses and system for encoding and decoding signal
Methods and apparatuses for encoding a signal and decoding a signal and a system for encoding and decoding are provided. The method for encoding a signal...
US-8,135,585 Method and an apparatus for processing a signal
An apparatus and method for processing an encoded signal are discussed. The method includes: if a coding type of an audio signal is a mixed signal coding type,...
US-8,135,584 Method and arrangements for coding audio signals
According to the invention, an excitation signal is generated as a result of sampled excitation values in order to excite an audio synthesis filter, the...
US-8,135,483 Editing device and audio signal processing device
An editing device that edits a configuration of signal processing to be performed in a mixer engine having a programmable signal processor stores, for each of a...
US-8,135,221 Video concept classification using audio-visual atoms
A method for determining a classification for a video segment, comprising the steps of: breaking the video segment into a plurality of short-term video slices,...
US-8,135,163 Balanced armature with acoustic low pass filter
A balanced armature apparatus is disclosed that includes dual transducers for generating sound waves in response to electric audio signals. The dual transducers...
US-8,135,157 Headset with adjustable boom
A headset (1) comprises a body (3) and a boom (4), on which a microphone is located. The boom (4) is mounted so that the position of a microphone (5) relative...
US-8,135,152 Method and apparatus for envelope detection and enhancement of pitch cue of audio signals
A method and apparatus for detecting an envelope of an audio signal, and a method and apparatus for enhancing the pitch cue of an audio signal perceived by a...
US-8,135,151 Audio signal reproduction device and audio signal reproduction system
In an audio signal reproduction device and an audio signal reproduction system of the present invention, an SLch sound is reproduced as a mixed sound that is...
US-8,135,149 Wireless communication device
A wireless communication device includes a speaker grille, a built-in speaker provided behind the speaker grille, and an output amplifier connected to the...
US-8,135,146 Equalization method using equal loudness curve based on the IS0266:2003 standard, and sound output apparatus...
An equalization method using equal loudness curve, and a sound output apparatus using the same are disclosed. An audio signal is equalized using a standard...
US-8,135,145 Multi-level output signal converter
The present invention discloses a multi-level output signal converter, which is connected to an audio amplifier. The audio amplifier comprises a ...
US-8,135,141 Audio signal transmitting apparatus, audio signal receiving apparatus, audio signal transmission system, audio...
There is provided an audio signal transmitting apparatus including: a channel mapping unit which determines the audio signals allocated to each of the channels...
US-8,135,140 System for active noise control with audio signal compensation
An active noise control system generates an anti-noise signal to drive a speaker to produce sound waves to destructively interfere with an undesired sound in a...
US-8,135,139 Frequency transposition applications for improving spatial hearing abilities of subjects with high-frequency...
A method of configuring a frequency transposition scheme for transposing a set of received frequencies of an audio signal received by a hearing aid worn by a...
US-8,135,136 Audio signal enhancement
A device (10) for enhancing a multi-channel (e.g. stereo) audio signal has a parameter adjustment unit (13) for adjusting an original parameter (.alpha., ILD,...
US-8,135,077 Broadcast receiver and method of processing data
A broadcast receiver and a method of processing data are disclosed. The broadcast receiver includes a broadcasting module, at least one function module, and a...
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