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Searching: audio signal





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Patent # Description
US-8,311,386 Control signal transmitting and receiving techniques for video/audio processing IC and apparatus therefor
Control signal transmitting and receiving methods for video/audio processing integrate circuit (IC), the method applied to a video player, and an apparatus...
US-8,311,262 Loudspeaker ceiling mount bracket
A ceiling mount bracket for a loudspeaker. The ceiling mount bracket includes a mounting plate; an assembly to orient the loudspeaker; an assembly to receive...
US-8,311,260 Miniature stereo audio earphones
A miniature audio earphone includes a pair of audio earphones, an electrical connector adapted for making a selectively detachable physical and electrical...
US-8,311,254 Speaker system
An audio speaker comprises three modules stacked on one another to form a tower. The bottom module generates a magneto-strictive output that is coupled to the...
US-8,311,253 Earpiece positioning and retaining
An earpiece. The earpiece includes an electronics module for wirelessly receiving incoming audio signals from an external source. The earpiece further includes...
US-8,311,243 Energy-efficient consumer device audio power output stage
An energy-efficient consumer device audio power output stage provides improved battery life and reduced power dissipation. A power supply having a selectable...
US-8,311,242 Amplifying an audio signal
A method of amplifying an output signal from a microphone or audio transducer so as to introduce a controllable degree of distortion for inputs having a wide...
US-8,311,241 Microphone circuit
An infrared light emitting diode circuit and related methods are disclosed. Exemplary features of embodiments comprise circuitry for controlling the voltage...
US-8,311,240 Audio signal processing apparatus and audio signal processing method
An audio signal processing apparatus includes a high-frequency components extraction means for extracting high-frequency components higher than a predetermined...
US-8,311,239 Method and apparatus for audio bass enhancement using stereo speakers
Provided are a method and apparatus for audio bass enhancement using stereo speakers. By filtering a baseband signal of an input signal whose frequency is lower...
US-8,311,238 Audio signal processing apparatus, and audio signal processing method
An audio signal processing apparatus includes: a dividing section dividing each of audio signals of a plurality of channels into a plurality of frequency bands;...
US-8,311,234 Echo canceller and communication audio processing apparatus
Disclosed herein is an echo canceller for use in a sound reinforcement communication system configured to carry out a sound reinforcement communication by...
US-8,311,233 Position sensing using loudspeakers as microphones
A multi-channel audio system having multiple loudspeakers is used to obtain information on the location of one or more independent noise sources within an area...
US-8,311,230 Speaker systems and methods having amplitude and frequency response compensation
A speaker system and method, in which the intelligibility of reproduced speech or music sound, derived from an audio program signal, is enhanced by means of at...
US-8,311,228 Ear input sound pressure level monitoring system
Systems and methods for monitoring a sound pressure level dose at an ear are provided. A system includes an audio transducer which outputs a sound signal is...
US-8,311,227 Method and an apparatus for decoding an audio signal
A method for processing an audio signal, comprising: receiving a downmix signal in time domain; if the downmix signal corresponds to a mono signal, bypassing...
US-8,311,093 Signal transmission apparatus and signal transmission method
When transmitting an input image signal and an audio signal inputted in synchronization with the input image signal, each frame in the input image signal are...
US-8,311,085 Digital intercom network over DC-powered microphone cable
A digital intercom system provides DC power and multi-channel bidirectional digital communications over existing cabling such as microphone cabling used in...
US-8,310,965 Buffered audio system with synchronizing bus controller
An audio system includes an audio client device and an access point. The audio client device includes a buffer, a clock generator, a bus controller, a bus...
US-8,310,454 Translucent touch screens including invisible electronic component connections
Disclosed is a touch screen of semi-transparent mesh that may be utilized by, for example, a mobile communication device. The mesh may be utilized for both a...
US-8,310,313 Highly efficient class-G amplifier and control method thereof
A highly efficient class-G amplifier includes an amplifier circuit coupled between a positive power rail and a negative power rail to amplify an audio input...
US-8,309,835 Signal distribution within modular structures facilitating aggregated and field-customized musical instruments
A signal distribution system for a customizable aggregated musical instrument is described. The signal distribution system interfaces with a plurality of...
US-8,309,834 Polyphonic note detection
Processor-implemented methods and systems for polyphonic note detection are disclosed. The method includes converting a portion of a polyphonic audio signal...
US-8,308,558 Universal tactile feedback system for computer video games and simulations
A universal tactile feedback system for computer and video game systems is disclosed which provides real time tactile feedback to enhance a user's experience...
US-8,306,828 Method and apparatus for audio signal expansion and compression
An audio signal expansion and compression method for expanding and compressing an audio signal in a time domain, includes the steps of setting an initial value...
US-8,306,827 Coding device and coding method with high layer coding based on lower layer coding results
A coding device is provided with features in which optimum coding in a higher layer is flexibly carried out based on a coding result of a lower layer and a...
US-8,306,814 Method for speaker source classification
A method for classifying a pair of audio signals into an agent audio signal and a customer audio signal. One embodiment relates to unsupervised training, in...
US-8,306,812 Method and apparatus to vary audio playback speed
An audio playback speed control method and apparatus to control an audio playback speed using an optimal frame length with a small amount of calculation. The...
US-8,306,811 Embedding data in audio and detecting embedded data in audio
A method of embedding data into an audio signal provides a data sequence for embedding in the audio signal and computes masking thresholds for the audio signal...
US-8,306,569 Multi-mode IC with multiple processing cores
An integrated circuit (IC) includes an RF section, a DSP, and a plurality of processors. The RF section and the DSP process an inbound RF signal to produce...
US-8,306,493 Pilot based adaptation for FM radio receiver
Performing a decoding mode of a frequency modulation (FM) signal for an adaptive FM radio receiver includes passing the FM signal through a FM demodulator to...
US-8,306,476 Digital controller and transmitter for portable electronic device
A transmitting accessory couples with a portable electronic device such that audio signals or data from the device can be digitally transmitted to a remote...
US-8,306,397 Picture recorder and commercial message detection method
A picture recorder that records TV broadcast programs and skips commercial sections included in broadcasts for reproduction, includes: an audio input unit that...
US-8,306,392 Audio-video recording device
Problem: It is to automatically recognize CM-broadcast periods, while video-recording television broadcast, without interfering with simultaneous access action...
US-8,306,279 Operator interface for face and iris recognition devices
A primarily hand-held or adjustable-mount iris recognition device wherein feedback to the operator is provided by visible illumination or imagery projected onto...
US-8,306,254 Recessed and rotatable spa speaker system
A spa speaker system having a housing with a speaker mounted therein, wherein the housing is mounted within a hole in the wall of a spa. The speaker system is...
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...
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