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| Number | Title | Issue Date |
| 8180072 | Electronic volume device Amplifiers amplify input first audio signals according to volume values set beforehand. Via output terminals, the amplifiers output second audio signals to externally connected power amplifiers. A comparison unit compares the second audio signals with a reference si... | 05/15/2012 |
| 8165319 | Method and system for reproducing an audio signal A system and method of reproducing an audio signal produced by an audio system which includes an earphone is described. The method including the steps of: receiving an audio signal; estimating short-term characteristics of the acoustic exposure of a listener; record... | 04/24/2012 |
| 8165318 | Process for adjusting the sound volume of a digital sound recording The present invention relates to a process for adjusting the sound volume of a digital sound recording characterized in that it comprises: a step consisting of determining, in absolute values, for a recording, the maximum amplitude... | 04/24/2012 |
| 8165320 | Audio/video device having a volume control function for external audio reproduction unit by using volume control buttons of a remote controller and volume control method therefor 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 provided. The A/V device includes speakers, an audio output port for externally outputting an audio signal, a... | 04/24/2012 |
| 8160275 | Apparatus and method for an integrated, multi-mode, multi-band, and multi-stage power amplifier An apparatus and method for amplifying a transmission signals in multiple modes and multiple bands. The apparatus includes a tunable power amplifying module adapted to receive a plurality of signal types comprising multiple modes and multiple bands. The tunable powe... | 04/17/2012 |
| 8155348 | Post phase-inverter volume control A post phase-inverter master volume regulator for use in combination with a tube-type musical amplifier having a phase-inverter tube. The signals at both sides of the phase-inverter tube's DC voltage plate are extracted from the amplifier for processing by the maste... | 04/10/2012 |
| 8150071 | Voice output unit An appliance is provided which can be easily assembled, assures quality and reliability, and can be downsized. A voice output unit includes: a power source supplying power; a signal processing module which processes voice signals received from an external source, an... | 04/03/2012 |
| 8139789 | Signal amplifier circuit A plurality of main amplifiers amplifies input audio signals with an adjustable gain. A first selector selects any of the input audio signals. An auxiliary amplifier receives an output of the first selector and amplifies this output with an adjustable gain. A second... | 03/20/2012 |
| 8135147 | Method and device for adjusting audio volume level A method and device for adjusting an audio volume level, are discussed. In an embodiment of the method, the volume steps of at least one preferred volume range and the volume steps of remaining volume ranges are set to be different from each other. The preferred vol... | 03/13/2012 |
| 8116484 | Sound output device, control method for sound output device, and information storage medium To provide a sound output device capable of preferably outputting, while utilizing control data created based on an assumption that sound data will be output via a certain number of speakers, the sound data via a number of speakers that is larger or smaller than the... | 02/14/2012 |
| 8090121 | Audio adapter having volume adjusting function An audio adapter includes a first audio interface, a second audio interface, and two second amplifiers. The power pin of the second audio interface is connected to the non-inverting terminals of the two amplifiers. The left and right ear audio pins of the second aud... | 01/03/2012 |
| 8090120 | Calculating and adjusting the perceived loudness and/or the perceived spectral balance of an audio signal The invention relates to the measurement and control of the perceived sound loudness and/or the perceived spectral balance of an audio signal. An audio signal is modified in response to calculations performed at least in part in the perceptual (psychoacoustic) loudn... | 01/03/2012 |
| 8045732 | Mapping control signals to values for one or more internal parameters Mapping a plurality of external control signals to values for one or more internal parameters is disclosed. Each external control signal is mapped to a control signal-specific set of internal parameter values corresponding to the level of the signal. The resulting s... | 10/25/2011 |
| 7970153 | Audio output apparatus An audio output apparatus has a measuring circuit which measures the levels of at least two sound signals, a sound level adjusting module (a sound level adjusting circuit and a gain control circuit) which adjusts a sound level so as to equal the levels of the sound ... | 06/28/2011 |
| 7953234 | Audio signal output circuit and electronic apparatus outputting audio signal A digital audio-signal output circuit is provided, which is capable of outputting an audio signal without generating pop noise. In suppressing pop noise, the audio signal output circuit requires no analog circuit nor mute control signal for external peripheral devic... | 05/31/2011 |
| 7929712 | Electronic volume control apparatus An electronic volume apparatus sets an amplification factor (Gamp) of a digital potentiometer in response to a requested sound volume value (Vreq) transmitted thereto from a remote controller and sends back an actual result sound volume value (Vrep) with respect to ... | 04/19/2011 |
| 7831054 | Volume control A volume control may be provided with some integrated graphical indication of the presence and/or level of an audio signal that it controls. For example, a slider-type volume control may be provided with a signal meter within the slider itself. A volume control may ... | 11/09/2010 |
| 7760893 | Automatic volume control to compensate for speech interference noise A microphone detects acoustic waves from speakers and background noise, and produces a corresponding signal that is digitized; also digitized is a desired audio signal; the two digitized signals are phase and amplitude correlated; a subtractor finds the difference b... | 07/20/2010 |
| 7751576 | Loudspeaker apparatus A loudspeaker apparatus has an improved reproduction characteristic of signals of small sound volumes. The loudspeaker apparatus includes a small-signal loudspeaker unit operable to output first signals in the range of a predetermined level or below of the input aud... | 07/06/2010 |
| 7706551 | Dynamic volume control In accordance with one aspect of the dynamic volume control, an indication that a user desires to input oral data to a system through one or more microphones of the system is received. In response to receipt of the indication, a volume level for audible signals outp... | 04/27/2010 |
| 7650002 | Digital compressor for multi-channel audio system A level adjustment method is applicable to an audio processing apparatus having a plurality of amplifiers corresponding to three or more of input channels of an audio signal for amplifying signal levels of the respective input channels. The level adjustment method i... | 01/19/2010 |
| 7613312 | Audio processing apparatus for implementing level corrections of audio data A audio processing apparatus capable of judging and correcting volume levels of audio data, with a level judgment thinning controller for thinning the frequency of the level judgments provided therein, can reduce a throughput and implement the level judgments and co... | 11/03/2009 |
| 7599503 | Audio output level setting method and device In a device equipped with an audio output, a range of the audio output level in regular use is set. When an attempt is made to change the setting to a volume level exceeding the range of the audio output level having been set, a request is made for an acknowledgemen... | 10/06/2009 |
| 7583809 | Sound signal processing device and sound signal processing method In a sound signal processing device, the level of an output signal is controlled as a function of the level of the corresponding input signal by supplying the output signal, whose level is converted by a level converter and to which a specific frequency characterist... | 09/01/2009 |
| 7574010 | System and method for adjusting an audio signal Disclosed is a system and method of adjusting an audio signal for a communication device. The method comprises: identifying a characteristic associated with the signal and identifying its quality threshold; identifying a first set of adjustment parameters for the si... | 08/11/2009 |
| 7551744 | Display showing waveform of an audio signal and corresponding dynamic volume adjustments A DSP (digital signal processor) processor having a gain reduction function processes an audio input signal to produce a current audio meter value, and a current gain reduction value. A logic processor then generates a timecode event record in response to receiving ... | 06/23/2009 |
| 7539317 | Drive apparatus for volume control devices A drive apparatus for volume control devices is provided for setting, promptly and exactly, the position of a control device such as a fader to its standard position. A first volume control device (127-1), an operation position thereof is operative aut... | 05/26/2009 |
| 7532730 | Audio dynamics processing control system An improved dynamics processing control system clamps a level detected control signal at a level equal to a predefined threshold point. In one embodiment, a clamped level detected signal feeds a filter with very slow response characteristics. By comparing the differ... | 05/12/2009 |
| 7519188 | Electroacoustical transducing Audio electrical signals are controlled to be provided to a plurality of electroacoustical transducers of an array to achieve directivity and acoustic volume characteristics that are varied with respect to a parameter associated with operation of the array. The cont... | 04/14/2009 |
| 7502480 | System and method for implementing a flat audio volume control model A system and method for implementing a flat volume model for software application audio signals is provided. A computer system generates a flat volume characteristics tree based upon current hardware/software values from an audio setting hierarchy. The computer syst... | 03/10/2009 |
| 7489790 | Digital automatic gain control Systems, devices, and methods are provided to inhibit apparent amplitude modulation in non-linear processing that causes distortion in a processed signal. One aspect of the invention includes a hearing aid. The hearing aid includes a microphone to receive an input s... | 02/10/2009 |
| 7469051 | Method and apparatus for maintaining audio level preferences in a communication device An intelligent automatic volume control technique (100) for a communication device is provided that takes a measurement of the background audio environment at the time a user manually selects the volume (102, 104). A user preference is established for ... | 12/23/2008 |
| 7440577 | Methods and apparatus for automatic mixing of audio signals Methods and apparatus for automatically mixing a plurality of audio channels by adjusting respective gains of the audio channels using a control signal based on an aggregate of input levels of respective audio signals of the audio channels; and reducing the gain of ... | 10/21/2008 |
| 7430296 | Circuit arrangement for reducing the dynamic range of audio signals An audio system includes a first transformation device provided with an input audio signal and which transforms the input audio signal from the time domain to the frequency domain resulting in an input spectrum. The system also includes a spectral processing device,... | 09/30/2008 |
| 7428310 | Audio output adjusting device of home theater system and method thereof A home theater system, an audio output adjusting device of a home theater system and methods thereof allow a prescribed or three-dimension audio configuration state for at least one prescribed position even when the prescribed location and/or a configuration of the ... | 09/23/2008 |
| 7424118 | Moving object equipped with ultra-directional speaker A moving object 1 equipped with ultra-directional speaker is provided with an emitter 44 for measuring a distance to a target 11 to which it is to provide a voice by using an ultrasonic transmit sensor 45 and an ultrasonic receive sensor ... | 09/09/2008 |
| 7424120 | Method and apparatus for volume control A method and apparatus for generating and controlling volume of a speaker of an appliance is disclosed. The appliance includes an IC chip connected to an amplifier subsystem. The IC chip includes a square-wave audio signal generator, a counter, a register, a compara... | 09/09/2008 |
| 7415119 | Method for hierarchical audio conflict control A control system and associated method resolving audio conflicts. The control system comprises a computing device, a memory device comprising a database, and a plurality of audio sources. The memory device is coupled to the computing device. The database comprises i... | 08/19/2008 |
| 7409067 | Method and apparatus for adjusting frequency characteristic of signal In a frequency characteristic adjustment apparatus incorporated in an audio system, a frequency characteristic of an audio signal is made to agree with a target frequency characteristic, thus providing an equalizing function. In the apparatus, by a frequency charact... | 08/05/2008 |
| 7409066 | Method of adjusting filter parameters and an associated playback system To improve upon a method of adjusting at least one filter parameter such as the mid-frequency of at least one filter unit provided with a playback system for audio signals, this filter unit being provided in particular for at least one digital equalizer assigned to ... | 08/05/2008 |
