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Searching: audio signal





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Patent # Description
US-8,363,857 Portable electronic device
A portable electronic device includes a player, a speaker, a control circuit, a switch circuit, and a current limiter. The player is for outputting analog audio...
US-8,363,856 Audio amplifier circuit and electronic apparatus including the same
An electronic audio amplifier circuit, operable in two modes and a battery powered portable audio apparatus incorporating the circuit; and associated...
US-8,363,854 Device and method for automatically adjusting gain
A device and method are provided for automatically adjusting gain, including a conversion module for converting an audio time-domain signal to an audio...
US-8,363,850 Audio signal processing method and apparatus for the same
An audio signal processing method for processing input audio signals of plural channels includes calculating at least one feature quantity representing a...
US-8,363,848 Method, computer readable storage medium and system for localizing acoustic source
A system for localizing an acoustic source is provided. This system includes a microphone apparatus, an audio processing apparatus, a photographing apparatus,...
US-8,363,847 Device and method for simulation of WFS systems and compensation of sound-influencing properties
An aliasing correction in a wave field synthesis system is achieved by ascertaining the aliasing filter property specific for a virtual source. This aliasing...
US-8,363,845 Speaker array apparatus and signal processing method therefor
A speaker array apparatus capable of performing directivity control with ease even when sound emission is performed based on audio signals of different...
US-8,363,844 Contextual audio switching for a USB controlled audio device
Systems and methods for contextual audio switching for a USB controlled audio device coupled to a processor-based host are presented. Two or more USB audio...
US-8,363,842 Playback method and apparatus, program, and recording medium
There is provided a playback method for decode-processing and playing back coded audio data which is transmitted with necessary stereo process information...
US-8,363,822 Method and apparatus for battery switching during ringing
A method for providing a ringing signal includes providing a plurality of batteries coupled to a subscriber line interface circuit operable to generate the...
US-8,363,820 Headset with whisper mode feature
Systems and methods for operating a telecommunications device in whisper mode are presented. The method generally includes adjusting a transmit audio signal...
US-8,363,161 Systems, methods, and apparatus for synchronization of audio and video signals
Methods of processing an audiovisual signal that has a video portion and an audio portion are described. One example includes detecting a video synchronization...
US-8,363,087 Television receiver with a TV phone function
A videophone system includes a processor which selectively sets a television (TV) broadcast program viewing function mode and videophone function mode in...
US-8,362,833 Amplifier circuitry, integrated circuit and communication unit
Amplifier circuitry comprising a class-D amplifier for amplifying an audio input signal. The amplifier circuitry comprises sigma-delta modulation logic arranged...
US-8,362,832 Half-bridge three-level PWM amplifier and audio processing apparatus including the same
A half-bridge three-level pulse width modulation (PWM) amplifier includes a prescaling unit, a PWM generator configured to convert the input signal to a...
US-8,362,349 Touch pad disc jockey controller
The present invention pertains to the field of control and manipulation of a digital audio signal by a user manipulable touch sensitive control surface. The...
US-8,359,610 Audience measurement apparatus, system and method for producing audience information of a media presentation
Audience measurement methods and systems for producing audience information of a media presentation. At least one embodiment includes a moveable apparatus...
US-8,359,417 Audio/video router
A composite input signal having an audio component and a video component is routed from an input to an output by separating a stream of audio data words at an...
US-8,359,205 Methods and apparatus to perform audio watermarking and watermark detection and extraction
Methods and apparatus to audio watermarking and watermark detection and extracted are described herein. An example method includes receiving a media content...
US-8,359,198 Pre-processing and speech codec encoding of ring-back audio signals transmitted over a communication network to...
A method of pre-processing an audio signal transmitted to a user terminal via a communication network and an apparatus using the method are provided. The method...
US-8,359,195 Method and apparatus for processing audio and speech signals
A method and device for processing signals representing speech or audio via a plurality of filters that approximate behaviors of the basilar membrane of human...
US-8,359,194 Device and method for graduated encoding of a multichannel audio signal based on a principal component analysis
A system and a method for the scalable coding of a multi-channel audio signal comprising a principal component analysis (PCA) transformation of at least two...
US-8,359,113 Method and an apparatus for processing an audio signal
A method of processing an audio signal is disclosed. The present invention comprises receiving downmix signal including object signals, transforming the downmix...
US-8,359,076 Mobile wireless communications device having improved antenna impedance match and antenna gain from RF energy
A mobile wireless communications device and associated method of making same includes a housing and circuit board having a ground plane. Radio frequency (RF)...
US-8,359,064 Wireless apparatus
This invention is directed to a wireless apparatus to carry out transmission and reception by either a digital communication system or an analog communication...
US-8,358,980 Wireless audio transfer system, wireless microphone, audio transmitting apparatus, audio receiving apparatus,...
Disclosed is a wireless audio transfer system that includes an audio transmitting apparatus including a microphone and a modulating/transmitting unit for...
US-8,358,973 Communications system
An underwater communications system is provided that transmits electromagnetic and/or magnetic signals to a remote receiver. The transmitter includes a data...
US-8,358,907 Display control apparatus, display control method, and program
A display control apparatus includes a receiving unit that receives a television broadcast signal containing at least remote broadcast image information, a...
US-8,358,791 Distributed audio signal processing system having logical channel groups
A distributed audio signal processing system having a plurality of linked audio signal processing units is disclosed. Each audio signal processing unit has...
US-8,358,600 Method of transmitting data in a communication system
A method of transmitting a combined audio signal to at least one of a plurality of participants in a communication event comprising; receiving an audio signal...
US-8,358,376 Method and device for generating and detecting fingerprints for synchronizing audio and video
This invention relates to a device and a method of generating a first and a second fingerprint (102,104) usable for synchronization of at least two signals...
US-8,358,375 Method and device for accurately and easily measuring a time difference between video and audio
To solve the problems in the prior art, the present invention provides a method for measuring a time difference between digital video signals and digital audio...
US-8,358,091 Apparatus and method for generating a number of loudspeaker signals for a loudspeaker array which defines a...
An apparatus for generating a number of loudspeaker signals for a loudspeaker array defining a reproduction space includes a prestage configured to generate a...
US-8,355,921 Method, apparatus and computer program product for providing improved audio processing
An apparatus for performing improved audio processing may include a processor. The processor may be configured to divide respective signals of each channel of a...
US-8,355,910 Methods and apparatus for audio watermarking a substantially silent media content presentation
Methods and apparatus for audio watermarking a substantially silent media content presentation are disclosed. An example method to audio watermark a media...
US-8,355,909 Hybrid permanent/reversible dynamic range control system
A system for controlling dynamic range of an audio signal comprises an automatic gain control element that receives an input signal having a varying level and...
US-8,355,908 Audio signal processing device for noise reduction and audio enhancement, and method for the same
In frequency signals obtained by converting input audio signals from time-domain signals to frequency-domain signals, a level control value setting unit 5...
US-8,355,801 System and method for measuring esophagus proximity
A system and method for determining on a continuous, real-time basis the proximity of the esophagus to an endocardial catheter during mapping, ablation or other...
US-8,355,708 Method for announcing a calling party from a communication device
A system and method are disclosed for announcing a calling party from a communication device. A system that incorporates teachings of the present disclosure may...
US-8,355,674 Multi-channel transmitter
A radio transmission method and a radio transmitter device for radio transmission of an audio signal from an audio device to a radio receiver wherein an audio...
US-8,355,671 Method and apparatus for transporting video signal over Bluetooth wireless interface
A wireless wearable video headset device useful for viewing and listening to multimedia content. In one embodiment, the device operates by receiving a digital...
US-8,355,515 Gaming headset and charging method
An audio headset may comprise a case, near field microphone and far field microphone. A speaker, processor, memory, battery, charging interface and cradle...
US-8,355,514 Audio encoding to convey auxiliary information, and media embodying same
Methods of processing audio to convey auxiliary information hidden therein are provided. Various arrangements are disclosed. One alters data representing audio...
US-8,355,510 Reduced latency low frequency equalization system
A frequency equalization system is provided that substantially equalizes the room frequency responses generated by at least one loudspeaker within a listening...
US-8,355,509 Parametric joint-coding of audio sources
The following coding scenario is addressed: A number of audio source signals need to be transmitted or stored for the purpose of mixing wave field synthesis,...
US-8,355,396 Customized network congestion messaging for terminal adapters
A terminal adapter such as a residential gateway or an eMTA is configured to receive a set of signals such as a 403 message from network devices operating in a...
US-8,355,335 Managing the audio-signal loss plan of a telecommunications network
A method is disclosed that enables the monitoring, evaluation, and adjustment of a telecommunications network's audio-signal loss plan. The method can be...
US-8,355,078 HDMI transmission systems for delivering image signals and packetized audio and auxiliary data and related HDMI...
A transmission system is capable of packetizing audio and auxiliary data in compliance with an HDMI standard. The transmission system may include a register set...
US-8,354,924 Waterproof audio receiving device with object detection system
A system for facilitating the instructional training of a swimmer wherein the system is further operable to provide object detection to the swimmer of an object...
US-8,354,880 Op-R, a solid state filter
The device described herein proposes an electronic active filter void of capacitors and inductors. The circuit utilizes only operational amplifiers (Op-Amps)...
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