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| Number | Title | Issue Date |
| 8103010 | Acoustic signal processing apparatus and acoustic signal processing method An apparatus for performing processing of an input acoustic signal to be reproduced by a loudspeaker, which generates a harmonic of a low pitch sound component equal to or lower than a predetermined low cutoff frequency, and generates a harmonic synthesized acoustic... | 01/24/2012 |
| 8098835 | Method and apparatus to enhance low frequency component of audio signal by calculating fundamental frequency of audio signal A method and apparatus to enhance a low frequency component of an audio signal, by computing a fundamental frequency of an input audio signal using the input audio signal and a delayed audio signal obtained by delaying the input audio signal by a predetermined amoun... | 01/17/2012 |
| 8090113 | System and method for modulating audio effects of speakers in a sound system A system for modulating audio effects of speakers is provided. The system includes a selecting module, a playing module, a recording module, a time delay computing module and a modulating module. Based on these modules, the system is capable of determining a time di... | 01/03/2012 |
| 8050417 | Auxiliary electromagnetic valve for a gas servo valve Auxiliary electromagnetic valve for its incorporation into a main valve of a gas servo valve, which comprises a body with an auxiliary outlet conduit connected to an outlet conduit of the servo valve, a pivoting arm that comprises a closure member of a valve seat of... | 11/01/2011 |
| 8045723 | Active sound effect generating apparatus An active sound effect generating apparatus includes a controller (a fourth acoustic adjuster and a fifth acoustic adjuster) which determines the amplitude of a control signal by adjusting the amplitudes of reference signals (intermediate signals) depending on an en... | 10/25/2011 |
| 8036394 | Audio bandwidth expansion Bandwidth expansion for audio signals by frequency band translations plus adaptive gains to create higher frequencies; use of a common channel for both stereo channels limits computational complexity. Adaptive cut-off frequency determination by power spectrum curve ... | 10/11/2011 |
| 8036395 | Sound effects generation device, sound effects generation method, and computer program product A sound effect generation device for generating a sound effect corresponding to a physical interaction between objects in a virtual space in which a plurality of virtual objects coexists, includes interaction detection means for detecting an object on which the phys... | 10/11/2011 |
| 8027482 | DVD audio encoding using environmental audio tracks Audio tracks including environmental information are recorded on a DVD, or other playback medium using microphones, vibration sensors, or other devices that capture ambient sound from the original environment in which a performance, presentation or other sound is cr... | 09/27/2011 |
| 8027483 | System and method for designing sound systems The invention is directed to a display and method for conducting sound system design. The display is configured to simultaneously show a sound system model comprising both audio components and sound environment components, a plurality of parameters and a graphic rep... | 09/27/2011 |
| 8005233 | Bass enhancement for audio A method and apparatus for conditioning an audio input signal to enhance perception and reproduction of bass frequencies. Harmonics are generated and combined with a phase-shifted version of the audio input signal. Use of a controlled phase shift reduces or eliminat... | 08/23/2011 |
| 7970147 | Video game controller with noise canceling logic A method for reducing noise disturbance associated with an audio signal received through a microphone is provided. The method initiates with magnifying a noise disturbance of the audio signal relative to a remaining component of the audio signal. Then, a sampling ra... | 06/28/2011 |
| 7961894 | Engine sound processing system Microphone are provided to an intake port of an engine and a wall surface of an engine room on the interior side respectively to collect an engine sound. The engine sound is processed by a signal processing portion and output via a speaker provided to an interior of... | 06/14/2011 |
| 7957539 | Sound enhancement system A system for enhancing sound quality comprising a filter that square roots the instantaneous amplitude of frequencies in an input signal for generating artificial harmonics corresponding to said frequencies. The system can comprise an automatic level control that mo... | 06/07/2011 |
| 7916876 | System and method for reconstructing high frequency components in upsampled audio signals using modulation and aliasing techniques A system and method is disclosed for reconstructing high frequency components of a digital audio signal using a harmonic enhancer in a baseband integrated circuit of a receiver handset. The original spectrum of the digital audio signal is upsampled in a times two (2... | 03/29/2011 |
| 7899192 | Method for dynamically adjusting the spectral content of an audio signal A method for dynamically adjusting the spectral content of an audio signal, which increases the harmonic content of said audio signal, said method comprising translating an encoded digital signal into data bands, creating a psychoacoustic model to identify sections ... | 03/01/2011 |
| 7792311 | Method and apparatus for automatically enabling subwoofer channel audio based on detection of subwoofer device Techniques for processing input signals in accordance with an output configuration are disclosed. According to one aspect of the techniques, a module implemented in a sound reproducing device is configured to determine whether a sound in the input audio source can b... | 09/07/2010 |
| 7787634 | Musical distortion circuits Musical distortion circuits are presented, typically for use with electric guitars, other electronic musical instruments or other sources of audio signals. In one embodiment, the musical distortion circuits of the present disclosure include a non-limiting clipping s... | 08/31/2010 |
| 7787633 | Crossfade sample playback engine with digital signal processing for vehicle engine sound simulator A vehicle engine sound simulator includes a crossfade sample playback engine which produces an output waveform comprising at least two constituent waveforms which are transposed up and down in frequency with RPM. The playback engine's output waveform is provided to ... | 08/31/2010 |
| 7729497 | Audio signal enhancement An audio signal (A) is enhanced by dividing the signal into time segments of a selected frequency range and scaling the audio signal in each time segment. The time segments (S) are defined by zero crossings (Z) of the audio signal, thus avoiding the introduction of ... | 06/01/2010 |
| 7702115 | Method and apparatus to reconstruct high-frequency components of an audio signal A method and apparatus to reconstruct high-frequency components of an input audio signal. The apparatus includes a frequency inverter to invert the frequency spectrum of the input audio signal, a band pass filter which filters out the higher frequency components of ... | 04/20/2010 |
| 7693290 | Sound reproduction device A sound reproduction device such as a radio receiver or a cellular phone includes an antenna, a control unit and a speaker. The control unit determines whether a radio wave receiving condition is satisfactory. The receiving condition is represented by field strength... | 04/06/2010 |
| 7650001 | Dummy sound generating apparatus and dummy sound generating method and computer product A dummy sound generating apparatus includes a dummy sound information storage unit that stores one or more dummy sounds, and an outer generating unit that generates one of the one or more dummy sounds outside of the vehicle upon reception of a dummy sound generation... | 01/19/2010 |
| 7643640 | System and method for designing sound systems The invention is directed to a display and method for conducting sound system design. The display is configured to simultaneously show a sound system model comprising both audio components and sound environment components, a plurality of parameters and a graphic rep... | 01/05/2010 |
| 7606374 | Engine sound synthesizer, motor vehicle and game machine employing the engine sound synthesizer, engine sound synthesizing method, and recording medium containing computer program for engine sound synthesis An engine sound synthesizer includes an engine sound storing section, and a synthetic engine sound data generating section which generates synthetic engine sound data on the basis of engine sound data stored in the engine sound storing section. The engine sound stor... | 10/20/2009 |
| 7602924 | Reproduction apparatus with audio directionality indication of the location of screen information A reproduction device has at least one screen for displaying information, with at least four sound reproduction devices respectively at the corners of the screen, which are separately driven depending on the local screen position of a user-relevant item of informati... | 10/13/2009 |
| 7590249 | Object-based three-dimensional audio system and method of controlling the same An object-based 3-D audio system. An audio input unit receives object-based sound sources. An audio editing/producing unit converts the sound sources into 3-D audio scene information. An audio encoding unit encodes 3-D information and object signals of the 3-D audio... | 09/15/2009 |
| 7583805 | Late reverberation-based synthesis of auditory scenes A scheme for stereo and multi-channel synthesis of inter-channel correlation (ICC) (normalized cross-correlation) cues for parametric stereo and multi-channel coding. The scheme synthesizes ICC cues such that they approximate those of the original. For that purpose,... | 09/01/2009 |
| 7580530 | Audio characteristic correction system An audio characteristic correction system adapted to an audio surround system in which a sound emitted from a directional speaker (an array speaker) is reflected on a wall surface or a sound reflection board so as to create a virtual speaker, at least one of frequen... | 08/25/2009 |
| 7577259 | Method and apparatus for extending band of audio signal using higher harmonic wave generator A higher harmonic wave generator generates a higher harmonic wave of an inputted audio signal having a predetermined band based on the inputted audio signal. Next, a multiplier modulates an amplitude of a generated higher harmonic wave of the audio signal according ... | 08/18/2009 |
| 7551742 | Acoustic signal-processing apparatus and method A band-dividing unit is operable to extract a low frequency component from an input signal in order to generate overtones based on the extracted low frequency component, and is further operable to divide the extracted low frequency component into signals that belong... | 06/23/2009 |
| 7466827 | System and method for simulating audio communications using a computer network A system and method for providing audio communications for a simulation system. A computer network has a server in data communication with client systems. The server receives audio from a transmitting client. It then executes transceiver models and impairment models... | 12/16/2008 |
| 7460674 | Audio effector circuit An audio effector circuit includes a first automatic level control circuit for processing an input audio signal into a first control-resultant audio signal, and a second automatic level control circuit for processing the input audio signal into a second control-resu... | 12/02/2008 |
| 7440576 | Apparatus and method for reconstructing high frequency part of signal Provided is an apparatus and method for reconstructing the high frequency part of audio signal to improve the quality of the audio signal. The apparatus includes a frequency inverter which inverts the frequency of an input signal; a band-pass filter which filters th... | 10/21/2008 |
| 7426417 | Method and apparatus for efficiently accounting for the temporal nature of audio processing Some embodiments of the invention provide a computer system for processing an audio track. This system includes at least one DSP for processing the audio track. It also includes an application for editing the audio track. To process audio data in a first interval of... | 09/16/2008 |
| 7424117 | System and method for generating sound transitions in a surround environment A system and method for enhancing song-to-song transitions in a multi-channel audio environment, preferably a surround environment. In the inventive method, by independently manipulating the volumes of the various channels of each program during transitions, an illu... | 09/09/2008 |
| 7424422 | Voice channel bussing in sound processors The invention is a method and system for applying more effects to voices in an input sound than is capable of being supported by a sound processor. Aspects of the invention include identifying at least one of the voices of the input sound as a voice bus channel; and... | 09/09/2008 |
| 7415315 | Recording and/or reproducing apparatus and recording apparatus A recording and/or reproducing apparatus includes a microphone, a semiconductor memory, an operating section and a controller. An output signal from the microphone is written in the semiconductor memory and the written signals are read out from the semiconductor mem... | 08/19/2008 |
| 7412380 | Ambience extraction and modification for enhancement and upmix of audio signals Modifying an audio signal comprising a plurality of channel signals is disclosed. At least selected ones of the channel signals are transformed into a time-frequency domain. The at least selected ones of the channel signals are compared in the time-frequency domain ... | 08/12/2008 |
| 7409252 | Recording and/or reproducing apparatus and recording apparatus A recording and/or reproducing apparatus includes a microphone, a semiconductor memory, an operating section and a controller. An output signal from the microphone is written in the semiconductor memory and the written signals are read out from the semiconductor mem... | 08/05/2008 |
| 7400734 | Method and apparatus for emulating audio effect The present invention provides an apparatus and a method for emulating audio. The apparatus comprises an echo device, a reverberation device, an audio source device and a first signal synthesizer. Wherein, the echo device receives an audio source signals and applies... | 07/15/2008 |
