Patent Grant
8559644
The present disclosure is based on and claims benefit from PCT International Application No. PCT/KR2008/006725 filed Nov. 14, 2008 which claims priority from Korean Patent Application No. 10-2007-0120165 filed Nov. 23, 2007, the entire contents of each of which are herein incorporated by reference.
The present invention relates to an apparatus for sound using resonance and sound image effect due to coupling of a plurality of amplifiers and speakers.
The factor in defining sound property includes a pitch, an intensity and a tone color of sound. The pitch of sound is determined by a musical interval and a frequency, and an audio frequency (20 Hz˜20 kHz) is generally divided into a high range component, a middle range component and a low range component.
A good sound balance can be achieved by uniformly including high range sound, middle range sound and low range sound without leaning of the sound to one side. The intensity of sound is associated with a dynamic range of a sound apparatus, and means a different width between a sound of little volume and a sound of large volume. And the tone color of sound is generated by a mode of sound and a harmonic tone.
The sound apparatus for reproducing sound as analog sound wave from a sound source includes a stereo audio comprised of an amplifier and a set of (two) speakers to realize stereo sound, a 2.1, 3.1, 4.1, 5.1 or 7.1-channel audio system comprised of a multi-channel amplifier and 3, 4, 5, 6 or 8 speakers, and a multi-amplifier audio system in which a plurality of amplifying circuits are provided and speakers for low-pitched sound, middle-pitched sound and high-pitched sound are respectively connected with a separate amplifier so as to amplify the sounds in accordance with an output frequency band.
Since the conventional stereo system or multi-channel and multi-amplifier system is focused on realizing the stereo sound, it is possible to excellently realize the stereo sound.
However, there is not a function of delicately controlling each bass, baritone and treble by frequency bands, which determines a tone color, and also since it can adjust only the bass and treble, it is difficult to realize a tone color that is desired by a listener. In other words, for example, in an existing audio system comprised of an amplifier and a set of (two) speakers, when the bass and treble are adjusted so as to control the low-pitched sound and high-pitched sound, if the bass is increased, a volume level of the low-pitched sound is increased, but volume levels of the middle-pitched sound and high-pitched sound are relatively reduced. And if the treble is increased a volume level of the high-pitched sound is increased, but volume levels of the low-pitched sound and middle-pitched sound are relatively reduced.
Thus, there are technical limitations that it is difficult to exhibit balanced sound, and sound field effect, realism and density of sound are also reduced. Even in the multi-channel and multi-amplifier system, there are technical limitations as described above.
Further, in the conventional audio system, if a volume of sound is increased, noise as well as sound is increased according to SNR (Signal to Noise Ratio) of an amplifier, and thus the whole sound becomes rough.
Furthermore, in the conventional audio system, since a user has to select one of a vacuum tube amplifier and a transistor amplifier and also select one of a closed type speaker and an open type speaker, it is difficult to realize sound having various tone colors.
An object of the present invention is to provide an apparatus for sound which can delicately and independently realize low-pitched sound, middle-pitched sound and high-pitched sound, and have a low SNR and generate sound having various tone colors.
To achieve the above objects, the present invention provides an apparatus for sound using multiple amplifiers, comprising a sound source generating unit for generating an electric signal from a sound source; N (N is a positive integer equal to and larger than 2) amplifiers which are connected with the sound source generating unit; and 2N speakers which are respectively connected with left and right output parts of each of the N amplifiers, wherein there is formed a multiple stereo imaging including a first stereo imaging generated by two speakers which are respectively connected with the left and right output parts of one amplifier selected from the N amplifiers; a first mono imaging generated by N speakers which are connected with the left output parts of each of the N amplifiers; a second mono imaging which are connected with the right output parts of each of the N amplifiers; and a second stereo imaging generated by the first mono imaging and the second mono imaging.
Preferably, an output part of the sound source generating unit is connected with an input part of one amplifier selected from the N amplifiers, and the N amplifiers are connected in series so that the output part of one amplifier is connected with the input part of other amplifier.
Preferably, the N amplifiers are connected in parallel so that the output part of the sound source generating unit is connected with the input part of each of the N amplifiers.
Preferably, the N is 2, and the four speakers are arranged in the form of a linear shape.
Preferably, the N is 2, and the four speakers are arranged in the form of a quadrangular shape.
Preferably, the N amplifiers independently control volume, treble and bass.
Preferably, the N amplifiers are comprised of a vacuum tube amplifier, a transistor amplifier or a combination thereof.
Preferably, the 2N speakers are comprised of a closed type speaker, an open type speaker or a combination thereof.
According to the apparatus for sound, it is possible to realize delicate tone color by independently controlling bass, treble and volume using two or more amplifiers, and at the same time, to realize sound having the sound resolution, the density of sound, the sound field effect and the realism as well as the low SNR by generating the multiple stereo imaging using the resonance of sound, and also it is possible to generate sound having various tone colors by combining speakers (the closed type speaker and the open type speaker) and amplifiers (the vacuum tube amplifier and the transistor amplifier) having different tone colors.
The above and other objects, features and advantages of the present invention will become apparent from the following description of preferred embodiments given in conjunction with the accompanying drawings, in which:
Hereinafter, the embodiments of the present invention will be described in detail with reference to accompanying drawings. The drawings are just examples for explaining ideas in the present invention, and thus the present invention are not limited to the drawings but can be realized in the form of other type. The same reference numerals are used for the same or similar parts the drawings.
Unless defined otherwise, all technical terms and scientific terms used herein the same means as commonly understood by one of ordinary sill in the art to which this invention belongs, and well-known functions and constructions in the drawings and the description, which may undesirably becloud the subject matters of the present invention, will be omitted.
At this time, since the two amplifiers 121 and 122 can independently control the volume, the treble and the bass, it is possible to delicately realize a tone color of each of low-pitched sound, middle-pitched sound and high-pitched sound while maintaining a sound balance, and it is facile to control the tone color according to a listener's preference.
Furthermore, the two amplifiers 121 and 122 are comprised of a vacuum tube amplifier, a transistor amplifier or a combination thereof, and the four speakers 131-134 are comprised of a closed type speaker, an open type speaker or a combination thereof, thereby generating sound having various tone colors. In case that the apparatus for sound is comprised of two amplifiers and the four speakers, it is possible to realize sound having 16 tone colors by using the combination of the amplifiers and the combination of the speakers.
In the embodiment of
As described in the embodiments of
The plurality of amplifiers used in the apparatus for sound may be configured as a series type in which the output part of the front amplifier is connected with the input part of the rear amplifier, as described in the embodiments of
As shown in
As described above, the present invention is described with reference to the particulars like the positions of speakers, the limited embodiments and the drawings, but they are just examples for explaining the ideas of the present invention and the present invention is not limited to them.
Those skilled in the art will appreciate that the conceptions and specific embodiments disclosed in the foregoing description may be readily utilized as a basis for modifying or designing other embodiments for carrying out the same purposes of the present invention. Those skilled in the art will also appreciate that such equivalent embodiments do not depart from the spirit and scope of the invention as set forth in the appended claims.
According to the apparatus for sound, it is possible to realize delicate tone color by independently controlling bass, treble and volume using two or more amplifiers, and at the same time, to realize sound having the sound resolution, the density of sound, the sound field effect and the realism as well as the low SNR by generating the multiple stereo imaging using the resonance of sound, and also it is possible to generate sound having various tone colors by combining speakers (the closed type speaker and the open type speaker) and amplifiers (the vacuum tube amplifier and the transistor amplifier) having different tone colors.
| Number | Date | Country | Kind |
|---|---|---|---|
| 10-2007-0120165 | Nov 2007 | KR | national |
| Filing Document | Filing Date | Country | Kind | 371c Date |
|---|---|---|---|---|
| PCT/KR2008/006725 | 11/14/2008 | WO | 00 | 7/19/2010 |
| Publishing Document | Publishing Date | Country | Kind |
|---|---|---|---|
| WO2009/066906 | 5/28/2009 | WO | A |
| Number | Name | Date | Kind |
|---|---|---|---|
| 3697692 | Hafler | Oct 1972 | A |
| 3818136 | Schott | Jun 1974 | A |
| 5333200 | Cooper et al. | Jul 1994 | A |
| 5333201 | Waller, Jr. | Jul 1994 | A |
| 5434921 | Dombrowski et al. | Jul 1995 | A |
| 5469509 | Navone et al. | Nov 1995 | A |
| 5530760 | Paisley | Jun 1996 | A |
| 6829359 | Serrano | Dec 2004 | B2 |
| 7564982 | Ambourn | Jul 2009 | B1 |
| 7664271 | Suzaki et al. | Feb 2010 | B2 |
| 8041040 | Imaki | Oct 2011 | B2 |
| 8121318 | Ambourn et al. | Feb 2012 | B1 |
| 20030059067 | Shibata | Mar 2003 | A1 |
| 20040247132 | Klayman et al. | Dec 2004 | A1 |
| 20050089178 | Asada et al. | Apr 2005 | A1 |
| 20060023889 | Suzaki et al. | Feb 2006 | A1 |
| 20070273790 | Sakata et al. | Nov 2007 | A1 |
| 20090097675 | Kikumoto et al. | Apr 2009 | A1 |
| 20090154738 | Pal | Jun 2009 | A1 |
| 20090252338 | Koppens et al. | Oct 2009 | A1 |
| 20110235809 | Schuijers et al. | Sep 2011 | A1 |
| Number | Date | Country |
|---|---|---|
| 08280100 | Oct 1996 | JP |
| 2003230190 | Aug 2003 | JP |
| 2005130169 | May 2005 | JP |
| 2007243563 | Sep 2007 | JP |
| 2007243772 | Sep 2007 | JP |
| Number | Date | Country | |
|---|---|---|---|
| 20100296657 A1 | Nov 2010 | US |
