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1. 发明申请

US20050145434A1 Speaker unit for low frequency reproduction 有权
公开(公告)号：US20050145434A1
公开(公告)日：2005-07-07
申请号：US11041822
申请日：2005-01-24
申请人： Erik Thorsell , Glenn Cass , Tetsuya Oishi
发明人： Erik Thorsell , Glenn Cass , Tetsuya Oishi
IPC分类号： H04R9/02 , H04R1/02 , H04R1/28 , H04R7/18 , H04R9/04 , H04R31/00 , H05K5/00 , A47B81/06
CPC分类号： H04R1/2826 , H04R2499/13
摘要： The invention provides a speaker unit for low frequency reproduction wherein distortion is reduced and the orientation of a sound image of the lower side frequency region is augmented. To that end, the phase characteristic in an actually used frequency band is made substantially flat. The speaker unit includes a speaker enclosure, a duct formed in the speaker enclosure and having a port thereon, and a speaker mounted in the speaker enclosure. The speaker is formed such that it has a first resonance frequency set higher than a higher side frequency of the actually used frequency band (about 20 Hz to 100 Hz), while the port is formed such that it has a second resonance frequency set lower than a lower side frequency of the actually used frequency band. For example, the speaker includes a vibrating system having a reduced mass or a reduced compliance with which the first resonance frequency is set higher than the higher side frequency of the actually used frequency band, and the duct has an increased length or a controlled cross sectional area with which the second resonance frequency is set lower than the lower side frequency of the actually used frequency band.

2. 发明授权

US06955241B2 Speaker unit for low frequency reproduction 有权
标题翻译：扬声器单元用于低频再现
公开(公告)号：US06955241B2
公开(公告)日：2005-10-18
申请号：US11041822
申请日：2005-01-24
申请人： Erik Thorsell , Glenn Cass , Tetsuya Oishi
发明人： Erik Thorsell , Glenn Cass , Tetsuya Oishi
IPC分类号： H04R9/02 , H04R1/02 , H04R1/28 , H04R7/18 , H04R9/04 , H04R31/00 , H05K5/02 , H04R1/22
CPC分类号： H04R1/2826 , H04R2499/13
摘要： The invention provides a speaker unit for low frequency reproduction wherein distortion is reduced and the orientation of a sound image of the lower side frequency region is augmented. To that end, the phase characteristic in an actually used frequency band is made substantially flat. The speaker unit includes a speaker enclosure, a duct formed in the speaker enclosure and having a port thereon, and a speaker mounted in the speaker enclosure. The speaker is formed such that it has a first resonance frequency set higher than a higher side frequency of the actually used frequency band (about 20 Hz to 100 Hz), while the port is formed such that it has a second resonance frequency set lower than a lower side frequency of the actually used frequency band. For example, the speaker includes a vibrating system having a reduced mass or a reduced compliance with which the first resonance frequency is set higher than the higher side frequency of the actually used frequency band, and the duct has an increased length or a controlled cross sectional area with which the second resonance frequency is set lower than the lower side frequency of the actually used frequency band.
摘要翻译：本发明提供了一种用于低频再现的扬声器单元，其中失真减小，并且下侧频率区域的声像的取向被增大。为此，实际使用的频带中的相位特性基本上是平坦的。扬声器单元包括扬声器外壳，形成在扬声器外壳中并具有端口的导管和安装在扬声器外壳中的扬声器。扬声器形成为使得其具有设定为高于实际使用频带（约20Hz至100Hz）的较高侧频率的第一谐振频率，而端口形成为具有低于实际使用的频带的较低频率。例如，扬声器包括振动系统，其具有减小的质量或降低的顺应性，第一谐振频率被设定为高于实际使用的频带的较高频率，并且该导管具有增加的长度或受控的横截面第二共振频率被设定为低于实际使用频带的下侧频率的区域。

3. 发明授权

US06912290B1 Speaker unit for low frequency reproduction 有权
标题翻译：扬声器单元用于低频再现
公开(公告)号：US06912290B1
公开(公告)日：2005-06-28
申请号：US09714799
申请日：2000-11-16
申请人： Erik Thorsell , Glenn Cass , Tetsuya Oishi
发明人： Erik Thorsell , Glenn Cass , Tetsuya Oishi
IPC分类号： H04R9/02 , H04R1/02 , H04R1/28 , H04R7/18 , H04R9/04 , H04R31/00 , H04R25/00
CPC分类号： H04R1/2826 , H04R2499/13
摘要： The invention provides a speaker unit for low frequency reproduction wherein distortion is reduced and the orientation of a sound image of the lower side frequency region is augmented. To that end, the phase characteristic in an actually used frequency band is made substantially flat. The speaker unit includes a speaker enclosure, a duct formed in the speaker enclosure and having a port thereon, and a speaker mounted in the speaker enclosure. The speaker is formed such that it has a first resonance frequency set higher than a higher side frequency of the actually used frequency band (about 20 Hz to 100 Hz), while the port is formed such that it has a second resonance frequency set lower than a lower side frequency of the used frequency band. For example, the speaker includes a vibrating system having a reduced mass or a reduced compliance with which the first resonance frequency is set higher than the higher side frequency of the actually used frequency band, and the duct has an increased length or a controlled cross sectional area with which the second resonance frequency is set lower than the lower side frequency of the actually used frequency band.
摘要翻译：本发明提供了一种用于低频再现的扬声器单元，其中失真减小，并且下侧频率区域的声像的取向被增大。为此，实际使用的频带中的相位特性基本上是平坦的。扬声器单元包括扬声器外壳，形成在扬声器外壳中并具有端口的导管和安装在扬声器外壳中的扬声器。扬声器形成为使得其具有设定为高于实际使用频带（约20Hz至100Hz）的较高侧频率的第一谐振频率，而端口形成为具有低于所使用的频带的较低频率。例如，扬声器包括振动系统，其具有减小的质量或降低的顺应性，第一谐振频率被设定为高于实际使用的频带的较高频率，并且该导管具有增加的长度或受控的横截面第二共振频率被设定为低于实际使用频带的下侧频率的区域。

4. 发明授权

US06868937B2 Sub-woofer system for use in vehicle 有权
标题翻译：用于车辆的低音扬声器系统
公开(公告)号：US06868937B2
公开(公告)日：2005-03-22
申请号：US10106651
申请日：2002-03-26
申请人： Glenn Cass
发明人： Glenn Cass
IPC分类号： B60R11/00 , B60R11/02 , H04R5/02 , G10K11/00
CPC分类号： H04R5/02 , B60R11/0223 , B60R2011/0029 , H04R2499/13
摘要： A sub-woofer system with a flat horn for use in a vehicle which is capable of achieving an improved sound reproducing performance as well as an excellent space factor by mounting the horn on the floor of the vehicle. The sub-woofer system includes a flat horn having a proximal end and a distal end where the proximal end is connected to a drive unit. The flat horn has a rectangular cross-section and is substantially uniform in thickness throughout while gradually increases in width toward the distal end. The drive unit is positioned under a front seat of the vehicle and the flat horn is placed on a floor of the vehicle, and wherein an end opening of the flat horn at the distal end thereof is positioned close to an inner front wall of the vehicle so that at least a part of the distal end contacts with the front wall.
摘要翻译：一种具有用于车辆的扁平喇叭的次低音扬声器系统，其能够通过将喇叭安装在车辆的地板上来实现改善的声音再现性能以及优异的空间因素。亚低音扬声器系统包括具有近端和远端的扁平喇叭，其近端连接到驱动单元。扁平喇叭具有矩形横截面，并且在宽度方向上基本上均匀，同时朝向远端逐渐增加宽度。驱动单元位于车辆的前座下方，并且扁平喇叭放置在车辆的地板上，并且其顶端的平喇叭的端部开口靠近车辆的前前壁定位使得远端的至少一部分与前壁接触。

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