基本信息:
- 专利标题： LOUDSPEAKER
- 专利标题（中）：喇叭
- 申请号：PCT/GB0200483 申请日：2002-02-04
- 公开(公告)号：WO02063604A2 公开(公告)日：2002-08-15
- 发明人： HERON KENNETH HARRY , NASH MALCOLM , PAYNE ANDREW PHILIP
- 申请人： QINETIQ LTD , HERON KENNETH HARRY , NASH MALCOLM , PAYNE ANDREW PHILIP
- 专利权人： QINETIQ LTD,HERON KENNETH HARRY,NASH MALCOLM,PAYNE ANDREW PHILIP
- 当前专利权人： QINETIQ LTD,HERON KENNETH HARRY,NASH MALCOLM,PAYNE ANDREW PHILIP
- 优先权： GB0102864 2001-02-06
- 主分类号： H04R1/00
- IPC分类号： H04R1/00 ; H04R7/04 ; G10K11/00
摘要：
Conventional analogue loudspeakers have a limited dynamic range as compared to the available dynamic range of digital recordings. Digital recordings use up to 24 bits and this implies a dynamic range of 141dB. Digital loudspeakers, involving 2 single bit device (with N = 24, this number is 1.7x10 ) have been proposed. Complexity and poor performance associated with the interaction effects between the different devices have discouraged widespread use of such systems, along with the inability of most loudspeakers to reproduce realistic absolute levels of sound (up to say 120dB at 1m without distortion), so such digital loudspeakers cannot take full advantage of the 24-bit fidelity. This invention provides a loudspeaker with improved dynamic range over prior art systems.
摘要（中）：
传统的模拟扬声器与数字录音的可用动态范围相比具有有限的动态范围。 数字录音最多可使用24位，这意味着141dB的动态范围。 数字扬声器涉及2 N单位设备（N = 24，这个数字是1.7×10 7）。 与不同设备之间的相互作用影响相关的复杂性和差的性能阻止了这种系统的广泛使用，以及大多数扬声器无法再现真实的绝对水平的声音（在1m时达到120dB而没有失真），因此这样的数字扬声器 无法充分利用24位保真度。 本发明提供了一种具有比现有技术系统更好的动态范围的扬声器。