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. 发明授权

US07072474B2 Sound recording and reproduction systems 失效
标题翻译：录音和复制系统
公开(公告)号：US07072474B2
公开(公告)日：2006-07-04
申请号：US10797973
申请日：2004-03-11
申请人： Philip Arthur Nelson , Ole Kirkeby , Hareo Hamada
发明人： Philip Arthur Nelson , Ole Kirkeby , Hareo Hamada
IPC分类号： H04R5/00
CPC分类号： H04R5/02 , H04R2205/022 , H04S1/002 , H04S7/302 , H04S2420/01
摘要： Sound recordings are played through a closely-spaced pair of loudspeakers with a predetermined listener position having an included angle of between 6° and 20°, and filter means being employed in creating said sound recordings, the filter means having characteristics such that when the sound recordings are played, the need to provide a virtual imaging filter means at the inputs to the loudspeakers to create virtual sound sources is avoided, the sound recording being such that when played through the loudspeakers a phase difference between vibrations of the two loudspeakers results where the phase difference varies with frequency from low frequencies where the vibrations are substantially out of phase to high frequencies where the vibrations are in phase, the lowest frequency at which the vibrations are in phase being determined approximately by a ringing frequency, f0.
摘要翻译：通过具有预定收听者位置的具有6°和20°之间的夹角的紧密间隔的一对扬声器播放声音记录，以及用于产生所述声音记录的滤波器装置，所述滤波器装置具有这样的特性，使得当声音记录被播放，避免了在扬声器的输入处提供虚拟成像滤波器装置以产生虚拟声源的需要，声音记录使得当通过扬声器播放时，两个扬声器的振动之间的相位差导致相位差随着频率的变化而变化，其中振动基本上是异相的高频，其中振动是同相的，振动相位的最低频率大致由振铃频率f 0确定， / SUB>。

2. 发明授权

US06950524B2 Optimal source distribution 失效
标题翻译：最优源分布
公开(公告)号：US06950524B2
公开(公告)日：2005-09-27
申请号：US10312224
申请日：2001-06-22
申请人： Philip Arthur Nelson , Takashi Takeuchi
发明人： Philip Arthur Nelson , Takashi Takeuchi
IPC分类号： H04R5/02 , H04S1/00 , H04R5/00 , H03G5/00 , H04R29/00
CPC分类号： H04S5/00 , H04R1/26 , H04R2205/024 , H04S3/002 , H04S2400/05 , H04S2420/01
摘要： A sound reproduction system has pairs of sound emitters that subtend different angles Θ, the span angle, at the listener position. The pairs of sound emitters are arranged to be excited by different frequency bands of the signal output from an inverse filter means (Hh, Hl). The operational span-frequency range of the pairs of sound emitters is determined by an equation (I) where the transducer span Θ is the angle subtended at the listener by a pair of transducers, where O
摘要翻译：声音再现系统具有对声音发射器，它们对应于收听者位置处的不同角度Theta，跨度角度。发声器对被布置成由反向滤波器装置（H H h H 1，H L 1）输出的信号的不同频带激发。发声器对的操作跨度频率范围由等式（I）确定，其中换能器跨度Theta是由一对换能器对准在倾听者处的角度，其中O ：是声速，Deltar：是耳朵之间的等效距离。声音发射器可以是分立的扬声器单元，不同的单元对定位在不同的跨度角，或者它们由扩展换能器的区域部分（图10）构成。当使用离散扬声器单元时，使用交叉滤波器（图28）将不同频带中的驱动信号提供给不同的扬声器对。当使用扩展换能器时，换能器的振动传播特性可以被布置成从位于换能器的较高频率发射端处的激励装置过滤沿换能器传递的振动。

3. 发明授权

US06760447B1 Sound recording and reproduction systems 失效
标题翻译：录音和复制系统
公开(公告)号：US06760447B1
公开(公告)日：2004-07-06
申请号：US09125308
申请日：1999-01-19
申请人： Philip Arthur Nelson , Ole Kirkeby , Hareo Hamada
发明人： Philip Arthur Nelson , Ole Kirkeby , Hareo Hamada
IPC分类号： H04R500
CPC分类号： H04R5/02 , H04R2205/022 , H04S1/002 , H04S7/302 , H04S2420/01
摘要： A method of recording sound for reproduction by a plurality of loudspeakers, or for processing sound for reproduction by a plurality of loudspeakers, is described in which some of the reproduced sound appears to a listener to emmanate from a virtual source which is spaced from the loudspeakers. A filter means (H) is used either in creating the recording, or in processing the recorded signals for supply to loudspeakers, the filter means (H) being created in a filter design step in which: a) a technique is employed to minimise error between the signals (w) reproduced at the intended position of a listener on playing the recording through the loudspeakers, and desired signals (d) at the intended position, wherein: b) said desired signals (d) to be produced at the listener are defined by signals (or an estimate of the signals) that would be produced at the ears of (or in the region of) the listener in said intended position by a source at the desired position of the virtual source. A least squares technique may be employed to minimise the time averaged error between signal reproduced at the intended position of a listener and the desired signal, or it may be applied to the frequency domain.
摘要翻译：描述了一种通过多个扬声器记录用于再现的声音或用于处理由多个扬声器进行再现的声音的方法，其中一些再现的声音出现在听众身上，从与扬声器间隔开的虚拟源显现。滤波器装置（H）用于创建记录，或者在处理记录的信号供给扬声器时，在滤波器设计步骤中产生滤波器装置（H），其中：a）使用技术来最小化误差在通过扬声器播放记录时在收听者的预期位置处再现的信号（w）和期望的信号（d）之间，其中：b）在收听者处产生的所需期望信号（d）由在虚拟源的期望位置处的源在所述预期位置处的（或在该区域中）产生的信号（或信号的估计）定义。可以采用最小二乘法来最小化在收听者的预期位置再现的信号与期望信号之间的时间平均误差，或者将其应用于频域。

4. 发明授权

US5949894A Adaptive audio systems and sound reproduction systems 失效
标题翻译：自适应音频系统和声音再现系统
公开(公告)号：US5949894A
公开(公告)日：1999-09-07
申请号：US820518
申请日：1997-03-18
申请人： Philip Arthur Nelson , Felipe Orduna-Bustamante , Hareo Hamada
发明人： Philip Arthur Nelson , Felipe Orduna-Bustamante , Hareo Hamada
IPC分类号： H04S1/00 , H04R5/00
CPC分类号： H04S1/002 , H04S7/301 , H04S7/307
摘要： A sound reproduction system comprises a plurality of loudspeakers (S1, S2) spaced from a listener at a location (M1, M2), and a loudspeaker drive means (H) for driving the loudspeakers (S1, S2) in response to a plurality of channels of a sound recording (x) of the type being suitable for playing normally through a plurality of reference speakers that are optimally positioned at locations that are displaced from the actual positions of the loudspeakers (S1, S2). The loudspeaker drive includes a filter (H), having a filter characteristic selected by minimising the difference between a desired sound field that would be created by playing the unfiltered sound recording (x) through the reference speakers and sound field reproduced at the listener location (M1, M2) by playing the recording through the speakers (S1, S2). This results in creating a local sound field at the listener location (M1, M2) which is substantially equivalent to the local field that would result from playing the unfiltered sound recording (x) through the reference speakers.
摘要翻译：一种声音再现系统，包括在一个位置（M1，M2）处与收听者间隔开的多个扬声器（S1，S2）和用于响应多个扬声器（M1，M2）驱动扬声器（S1，S2）的扬声器驱动装置该类型的声音通道（x）适于通过多个参考扬声器正常播放，该多个参考扬声器被最佳地定位在从扬声器（S1，S2）的实际位置偏移的位置处。扬声器驱动器包括滤波器（H），其具有通过使通过参考扬声器播放未滤波的录音（x）而产生的期望声场与在收听者位置再现的声场之间的差最小化而选择的滤波器特性（ M1，M2）通过扬声器播放录音（S1，S2）。这导致在收听者位置（M1，M2）处产生本地声场，其基本上等于通过参考扬声器播放未过滤的录音（x）而产生的局部场。

5. 发明授权

US5862227A Sound recording and reproduction systems 失效
标题翻译：录音和复制系统
公开(公告)号：US5862227A
公开(公告)日：1999-01-19
申请号：US793542
申请日：1997-07-25
申请人： Felipe Orduna-Bustamante , Ole Kirkeby , Hareo Hamada , Philip Arthur Nelson
发明人： Felipe Orduna-Bustamante , Ole Kirkeby , Hareo Hamada , Philip Arthur Nelson
IPC分类号： H04S1/00 , H04S3/00 , H04S5/00
CPC分类号： H04S1/002 , H04S1/007 , H04S3/002 , H04S1/005 , H04S2420/01
摘要： A method of recording sound for reproduction by a plurality of loudspeakers, or for processing sound for reproduction by a plurality of loudspeakers, is described in which some of the reproduced sound appears to a listener to emmanate from a virtual source which is spaced from the loudspeakers. A filter means (H) is used either in creating the recording, or in processing the recorded signals for supply to loudspeakers, the filter means (H) being created in a filter design step in which: a) a technique is employed to minimise error between the signals (w) reproduced at the intended position of a listener on playing the recording through the loudspeakers, and desired signals (d) at the intended position, wherein: b) said desired signals (d) to be produced at the listener are defined by signals (or an estimate of the signals) that would be produced at the ears of (or in the region of) the listener in said intended position by an source at the desired position of the virtual source. A least squares technique may be employed to minimise the time averaged error between the signal reproduced at the intended position of a listener and the desired signal, or it may be applied to the frequency domain.
摘要翻译： PCT No.PCT / GB95 / 02005 Sec。 371日期1997年7月25日 102（e）1997年7月25日PCT PCT 1995年8月24日PCT公布。出版物WO96 / 06515 日期1996年2月29日描述了一种通过多个扬声器记录用于再现的声音或用于处理由多个扬声器再现的声音的方法，其中一些再现的声音出现在听众身上，以从虚拟源与扬声器隔开。滤波器装置（H）用于创建记录，或者在处理记录的信号供给扬声器时，在滤波器设计步骤中产生滤波器装置（H），其中：a）使用技术来最小化误差在通过扬声器播放记录时在收听者的预期位置处再现的信号（w）和期望的信号（d）之间，其中：b）在收听者处产生的所需期望信号（d）由在虚拟源的期望位置处的源在所述预期位置处的（或在该区域中）产生的信号（或信号的估计）定义。可以采用最小二乘法来最小化在收听者的预期位置再现的信号与期望信号之间的时间平均误差，或者将其应用于频域。

6. 发明授权

US09961468B2 Sound reproduction systems 有权
公开(公告)号：US09961468B2
公开(公告)日：2018-05-01
申请号：US12667342
申请日：2008-07-04
申请人： Takashi Takeuchi , Philip Arthur Nelson
发明人： Takashi Takeuchi , Philip Arthur Nelson
IPC分类号： H04S5/00 , H04S3/00 , H04R1/26
CPC分类号： H04S5/00 , H04R1/26 , H04R2205/024 , H04S3/002 , H04S2400/05 , H04S2420/01
摘要： A sound reproduction system includes an electro-acoustic transducer and a transducer driver for driving the electro-acoustic transducer. The transducer drive includes a filter which is configured to reproduce at a listener's location an approximation to the local sound field that would be present at the listener's ears in recording space, taking into account the characteristics and intended position of the electro-acoustic transducer relative to the listener's ears. The electro-acoustic transducer includes a first sound emitter which provides an intermediate sound emission channel, and second and third sound emitters providing respective left and right sound emission channels. The first sound emitter is located intermediate of second and third sound emitters. Higher frequencies from at least one of the second and third sound emitters are transmitted closer to the first sound emitter while lower frequencies are transmitted away from the first sound emitter.

7. 发明申请

US20100202629A1 SOUND REPRODUCTION SYSTEMS 有权
标题翻译：声音再现系统
公开(公告)号：US20100202629A1
公开(公告)日：2010-08-12
申请号：US12667342
申请日：2008-07-04
申请人： Takashi Takeuchi , Philip Arthur Nelson
发明人： Takashi Takeuchi , Philip Arthur Nelson
IPC分类号： H03G5/00
CPC分类号： H04S5/00 , H04R1/26 , H04R2205/024 , H04S3/002 , H04S2400/05 , H04S2420/01
摘要： A sound reproduction system includes an electro-acoustic transducer and a transducer driver for driving the electro-acoustic transducer. The transducer drive includes a filter which is configured to reproduce at a listener's location an approximation to the local sound field that would be present at the listener's ears in recording space, taking into account the characteristics and intended position of the electro-acoustic transducer relative to the listener's ears. The electro-acoustic transducer includes a first sound emitter which provides an intermediate sound emission channel, and second and third sound emitters providing respective left and right sound emission channels. The first sound emitter is located intermediate of second and third sound emitters. Higher frequencies from at least one of the second and third sound emitters are transmitted closer to the first sound emitter while lower frequencies are transmitted away from the first sound emitter.
摘要翻译：声音再现系统包括电声换能器和用于驱动电声换能器的换能器驱动器。换能器驱动器包括滤波器，滤波器被配置为在收听者的位置处再现与存在于收听者耳朵的记录空间中的局部声场的近似，考虑到电声换能器相对于电声换能器的特性和预期位置听众的耳朵。电声换能器包括提供中间声音发射通道的第一声发射器，以及提供相应左和右声音发射通道的第二和第三声发射器。第一声发射器位于第二和第三声发射器之间。来自第二声发射器和第三声发射器中的至少一个的更高频率被更靠近第一声发射器传输，而较低频率则从第一声发射器传出。

8. 发明授权

US5727066A Sound Reproduction systems 失效
标题翻译：声音再现系统
公开(公告)号：US5727066A
公开(公告)日：1998-03-10
申请号：US655409
申请日：1993-04-27
申请人： Stephen John Elliott , Philip Arthur Nelson , Ian McGregor Stothers
发明人： Stephen John Elliott , Philip Arthur Nelson , Ian McGregor Stothers
IPC分类号： H03G5/16 , H04S1/00 , H04S3/00 , H04R5/00
CPC分类号： H03G5/005 , H03G5/165 , H04S1/002 , H04S3/00
摘要： A stereophonic sound reproduction system is aimed at synthesizing at a multiplicity of points (L) in the listening space. An auditory effect obtaining at corresponding points (K) in the recording space, to compensate for crosstalk (C.sub.21, C.sub.12) between the loudspeakers, the acoustic response of the listening space, and imperfections in the frequency response of the speaker channels. Each speaker channel incorporates a digital filter (H) with the characteristics of which are adjusted in response to measurements of the reproduced field. The digital filters are provided by an inverse filter matrix (H) of which the matrix elements (H.sub.ij) are determined by a least squares technique, applied so as to minimize the sum of the squared errors resulting from the difference between the actual system impulse response and a desired impulse response. A full bandwidth signal is transmitted by a bypass route for combination with the output signal (9) from the filter, the bypass route including a delay means (F).
摘要翻译：立体声声音再现系统旨在在收听空间中的多个点（L）处合成。在记录空间中的对应点（K）处获得听觉效果，以补偿扬声器之间的串扰（C21，C12），听音空间的声响响和扬声器声道的频率响应中的缺陷。每个扬声器通道包括数字滤波器（H），其特征是响应于再现场的测量而被调整。数字滤波器由反滤波器矩阵（H）提供，其中矩阵元素（Hij）由最小二乘法确定，以便最小化由实际系统脉冲响应之间的差异导致的平方误差之和和期望的脉冲响应。通过旁路路由与来自滤波器的输出信号（9）组合的全带宽信号，旁路路径包括延迟装置（F）。

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