专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

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。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式