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US20130216048 STEREO TO MONAURAL MULTI-SPEAKER PARALLEL WIRING SYSTEM  
The present invention is directed to a Stereo to Monaural Multi-speaker Parallel Wiring System that uses a standard 200 watt stereo and a whole sound impedance corrector to greatly reduce the...
US20090175458 Subwoofer docking station  
A subwoofer stereo system with a docking base for docking a portable digital media player comprises a generally hexahedron cabinet made of a panel material for encasing at least an electronic...
US20130266146 HEADSET SWITCHES WITH CROSSTALK REDUCTION  
Techniques for utilizing a plurality of switches to reduce crosstalk in a headset jack for accommodating both European and North American type headset plugs. In an aspect, a six-switch solution is...
US20080107277 Classroom sound amplification system  
This invention relates to a wireless classroom sound amplification system. The system comprises a microphone device converting a voice to a sound signal and connecting to a sound processing device...
US20080063224 Sound System  
To conclude, in a preferred embodiment in accordance with the invention, the sound system comprises two loudspeakers (LA, LB) which mask their spectral signatures at the ear (C1) of the listener...
US20120093325 SWITCHING CIRCUIT AND ELECTRONIC DEVICE USING THE SAME  
An electronic device includes an audio power amplifier used to output a left and a right channel audio signal, an earphone jack assembly, and a switching circuit automatically switching between a...
US20100296657 APPARATUS FOR SOUND HAVING MULTIPLES STEREO IMAGING  
The present invention relates to an apparatus for sound comprises a sound source generating unit for generating an electric signal from a sound source; N (N≧2) amplifiers which are connected with...
US20080118092 Speaker System of utilizing Pulse Width Modulation Signals for Saving Idling Power Consumption  
In a speaker system, pulse width modulation signals are utilized for driving said speaker system, and duty cycles of both left audio channel signals and right audio channel signals of an earphone...
US20090285404 ACOUSTIC CALIBRATION SOUND SYSTEM  
An acoustic calibration sound system includes a coordinate position detecting device and a host. The coordinate position detecting device is used for detecting a position of a listener in a space...
US20140192989 PROGRAMMABLY CONFIGURED SWITCHMODE AUDIO AMPLIFIER  
A multi-channel switchmode audio amplifier is configured by a programmed processor such that each channel drives separate loads, is connected in parallel or is configured in a bridge-tied mode as...
US20140064497 AMPLIFIER UNIT AND MOBILE ELECTRONIC DEVICE PROVIDED WITH THE AMPLIFIER UNIT  
An amplifier unit suitable for a wide variety of uses, which can flexibly support diverse sound recording scenarios, and a mobile electronic device provided with the amplifier unit. An amplifier...
US20080080730 Electronic Device and Speaker Control Method  
According to one embodiment, an electronic device includes a built-in speaker unit, a first amplifier which drives the built-in speaker unit, a first output circuit which outputs, to the first...
US20120020483 SYSTEM AND METHOD FOR ROBUST AUDIO SPATIALIZATION USING FREQUENCY SEPARATION  
Systems and devices for, and methods of, frequency separation and spatialization of audio content, by: (a) filtering a stream content; (b) transmitting the filtered stream content via a plurality...
US20100027799 ASYMMETRICAL DELAY AUDIO CROSSTALK CANCELLATION SYSTEMS, METHODS AND ELECTRONIC DEVICES INCLUDING THE SAME  
Crosstalk cancellation systems for left and right channel stereo audio signals that are played over left and right stereo loudspeakers include circuitry that is configured to apply more crosstalk...
US20100150357 AMPLIFIER CIRCUIT AND METHOD OF SIGNAL AMPLIFICATION  
An amplifier circuit and a method of signal amplification are provided. The amplifier circuit includes a first amplifier and a charge pump. The first amplifier includes a first terminal, a second...
US20130329893 AUDIO OUTPUT APPARATUS AND METHOD FOR OUTPUTTING AUDIO  
An audio output apparatus and a method for outputting audio are provided. The audio output apparatus includes a receiver which receives a multi-channel audio signal that includes channels; an...
US20080159546 Dynamic Surround Channel Volume Control  
A dynamic surround channel volume control applies a variable gain control to the surround channels of a multi-channel system. Thus the levels of the surround channels are related to the main...
US20070160220 Electronic bass instrument tube preamplifier  
Electronic bass register musical instrument tube preamplifier. An in line signal preamplification device which richens the tone of electronically amplified bass register musical instruments. The...
US20110293101 M-BRIDGE CLASS-D AUDIO AMPLIFIER  
A M-bridge class-D audio amplifier for portable applications and a method of driving a three-wire audio output device comprises a stereo signal source producing first and second input stereo...
US20120128164 BINAURAL NOISE REDUCTION  
In one embodiment, the present invention provides a sound processing device with a binaural input and binaural output, where “binaural input” means at least one microphone mounted in or near each...
US20080192958 Audio System  
An audio system 10 has a plurality of audio sources 12a-12c for outputting audio signals different from each other. A coefficient device 15d adjusts the gain of the audio signal output from one of...
US20050190926 Wave reduction sampling method of signal output  
The present invention discloses a wave reduction sampling method of signal output. The method includes smoothing the original digital signal at a host terminal to rebuild a simulating signal, and...
US20110293100 AUDIO AMPLIFIER PERFORMANCE WHILE MAINTAINING USB COMPLIANCE AND POWER DOWN PROTECTION  
An apparatus comprises a first audio amplifier circuit configured to provide an analog audio signal and an analog switch circuit including a first input configured to receive the analog audio...
US20100124334 AMPLIFICATION CIRCUIT AND AUDIO OUTPUT EQUIPMENT  
An amplification circuit and an audio output equipment provided with same are disclosed. The amplification circuit is provided with first, second and third amplifiers and an inverter. The first...
US20080144865 M-BRIDGE CLASS-D AUDIO AMPLIFIER  
A M-bridge class-D audio amplifier for portable applications and a method of driving a three-wire audio output device comprises a stereo signal source producing a first and second input stereo...
US20080025520 Volume controlling technique  
A gain switching unit receives each of plural gain control data at a different timing, and repeats that process until a switching instruction data is received. Upon receipt of the switching...
US20120155654 CIRCUIT DEVICE FOR PROVIDING A THREE-DIMENSIONAL SOUND SYSTEM  
A circuit device for a three-dimensional sound system is disclosed. The device circuit contains a plurality of resistors, capacitors and transistors. The circuit is an analog circuit creating an...
US20100054485 METHOD AND AN APPARATUS FOR PROCESSING AN AUDIO SIGNAL  
A method for processing an audio signal is disclosed. The present invention includes obtaining a plural-channel audio signal including a speech component signal and other component signals,...
US20110305346 Adaptive Audio Output  
Devices, apparatus, methods, circuits and processors are implemented for control of audio signals. Consistent with one such apparatus, a processor circuit is configured and arranged to determine,...
US20110255698 PROGRAMMABLE NOISE GATE FOR AUDIO AMPLIFIER EMPLOYING A COMBINATION OF LOW-NOISE AND NOISE-REJECTING ANALOG AND DIGITAL SIGNAL PROCESSING  
An apparatus comprises a first signal circuit path, a noise gate circuit, and a control circuit. The first signal circuit path processes a first electrical signal that includes one or more signal...
US20090016539 A/V AMPLIFIER AND METHOD FOR DRIVING THE SAME  
For achieving an audio reproduction with high sound quality, in a multi-channel A/V amplifier, front speakers are driven with a parallel-drive bi-amplifier arrangement upon stereo reproduction. In...
US20130064378 ANTI-NOISE EARMUFF DEVICE WITH BLUETOOTH MODULE AND AUDIO SIGNAL PROCESSOR  
An anti-noise earmuff device includes an audio signal processor unit, a Bluetooth module, an audio mixer unit and an amplifier unit. The audio signal processor unit is arranged in the earmuffs for...
US20140064498 SOUND SYSTEM AND METHOD FOR CAPTURING AND REPRODUCING SOUNDS ORIGINATING FROM A PLURALITY OF SOUND SOURCES  
A sound system and method for capturing and reproducing sounds produced by a plurality of sound sources are disclosed. Sounds produced by the plurality of sound sources may be received and...
US20140254803 RFID TRANSCEIVER FOR REMOTE CONTROL  
A transceiver for remote control, the transceiver includes an amplifier configured to receive an audio signal from a first electronic device and amplify the audio signal; a transmission module...
US20110280407 Compressor Based Dynamic Bass Enhancement with EQ  
A system for and method of enhancing the low frequency response of a loudspeaker for relatively low input level audio signals and protect the loudspeaker for relatively high input level audio...
US20130156203 TERMINAL HAVING A PLURALITY OF SPEAKERS AND METHOD OF OPERATING THE SAME  
A terminal including a plurality of speakers and a method for operating the same are provided. The method includes generating a request for an audio data playback, processing a signal according to...
US20100158259 DYNAMIC VOLUME CONTROL AND MULTI-SPATIAL PROCESSING PROTECTION  
A disclosed system and method dynamically controls the perceived volume of a stereo audio program including left and right channel signals. The system comprises: a dynamic volume control...
US20100119073 METHOD AND AN APPARATUS FOR PROCESSING AN AUDIO SIGNAL  
Disclosed is a method of processing an audio signal, including obtaining ratio information between a main signal and a sub-signal and gain range information of an object and modifying parameter...
US20170142534 MUSIC ENHANCING DEVICE FOR SOUND SYSTEMS  
A portable sound enhancement module for interconnection between a stereo signal source and a sound generator such as stereo headphones, includes an audio driver with a positive left input, a...
US20170111743 Apparatus and Method for Detecting and Driving Headphones Differentially in Mobile Applications  
An apparatus and method is disclosed for achieving improved sound quality from mobile ‘hifi’ playback devices by driving compatible headphones in ‘balanced’ or ‘differential’ mode via standard...
US20170111742 Apparatus and Method for Driving Headphones Differentially in Mobile Applications  
An apparatus and method is disclosed for achieving improved sound quality from mobile ‘hifi’ playback devices by driving compatible headphones in ‘balanced’ or ‘differential’ mode via standard...
US20170078817 AUDIO PROCESSING APPARATUS  
The number of digital-analog converters is decreased in an audio processing apparatus that outputs an audio signal to not only a device disposed in a main room but also a device disposed in a...
US20170064483 AUDIO AMPLIFIER CIRCUIT HAVING INPUTS FOR THREE AUDIO CHANNELS  
An audio amplifier circuit that is to receive three audio channel signals as inputs. A first amplifier has a first pair of outputs one of which produces a first combination sum of the three audio...
US20170055098 METHOD AND APPARATUS FOR PROCESSING AUDIO SIGNAL BASED ON SPEAKER LOCATION INFORMATION  
A method of processing an audio signal is provided. The method includes acquiring location information and performance information of a speaker configured to output an audio signal, selecting a...
US20170055080 METHOD FOR AUDIO SIGNAL PROCESSING AND SYSTEM THEREOF  
A method for audio signal processing and system thereof, the method includes the steps of: obtaining first audio signal information, obtaining second audio signal information, determining an audio...
US20160037279 Audio Device  
A method and system dynamically adjusts the audio of an audio and video signal to improve its overall sound quality and dialog intelligibility. Some embodiments use gain, equalization, audio...
US20150382109 DIGITAL AMPLIFIER, THREE-VALUE SIGNAL OUTPUT METHOD AND SPEAKER  
Noise is reduced when three-value output is performed. In a digital amplifier 1, a three-value driver 18a associated with a positive electrode and a three-value driver 18b output three-value...
US20150326989 DEVICE FOR MATCHING AND INDENTIFYING AUDIO INTERFACE OF MOBILE TERMINAL AND ELECTRONIC SIGNATURE TOKEN  
A device for matching and identifying an audio interface of a mobile terminal and an electronic signature token are provided. The audio interface of the mobile terminal includes a first pin, a...
US20150326986 Pair Volume Control  
An example method includes, based on an adjustment to a first displayed volume control, instructing the first playback device to adjust playback volume level; based on an adjustment to a second...
US20120106745 AUDIO PROCESSING SYSTEM  
The audio processing system disclosed in the invention comprises an audio processor and an audio amplifier. The audio processor receives a data signal to generate a processed signal, and comprises...

Matches 1 - 50 out of 51 1 2 >