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Searching: audio signal





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Patent # Description
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...
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...
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