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公开(公告)号：US4914707A
公开(公告)日：1990-04-03
申请号：US193136
申请日：1988-05-06
CPC分类号： H04R9/02 , H04R5/02 , H04R9/04 , H04R2499/13 , H04R9/025
摘要： A speaker system for a vehicle having both front and rear speakers. Both speakers are connected in parallel to an amplifier. The impedance of the rear speaker circuit is made greater than that of the front speaker circuit. A resistor may be placed in series with the rear speaker or a shorting ring may be attached to the coil of the front speaker to decrease the high frequency impedance.
摘要翻译： 一种用于车辆的扬声器系统，其具有前置扬声器和后置扬声器。 两个扬声器与放大器并联连接。 后置扬声器电路的阻抗大于前置扬声器电路的阻抗。 可以将电阻器与后置扬声器串联放置，或者可以将短路环连接到前置扬声器的线圈以降低高频阻抗。
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公开(公告)号：US4622691A
公开(公告)日：1986-11-11
申请号：US739954
申请日：1985-05-31
申请人： Akio Tokumo , Yoshiro Kunugi , Toshikazu Yoshimi , Shinjiro Kato , Yoshio Sasaki , Makoto Odaka , Takeshi Sato
发明人： Akio Tokumo , Yoshiro Kunugi , Toshikazu Yoshimi , Shinjiro Kato , Yoshio Sasaki , Makoto Odaka , Takeshi Sato
CPC分类号： H03G5/00 , H04S7/307 , H04R2499/13 , H04R5/02 , H04S7/302
摘要： A mobile sound field correcting system for correcting an acoustic characteristic in a vehicle sound field formed by direct waves radiated from loudspeakers and reflected waves thereof providing satisfactory acoustic characteristics for different vehicles and different listening points within a vehicle. A first correcting means corrects a power spectrum of each loudspeaker in a frequency range above a frequency at which a decrease of starts of the power spectrum in a high-frequency range of each loudspeaker. Second correcting means corrects for irregularities in the frequency characteristic of each loudspeaker caused by interference of the direct waves with the reflected waves in a frequency lower than the drop-off frequency of this power spectrum.
摘要翻译： 一种移动声场校正系统，用于校正由扬声器和反射波辐射的直接波形成的车辆声场中的声学特性，为车辆内的不同车辆和不同收听点提供令人满意的声学特性。 第一校正装置在每个扬声器的高频范围内功率谱开始减小的频率以上的频率范围内校正每个扬声器的功率谱。 第二校正装置校正由直流波与反射波的干扰导致的每个扬声器的频率特性的不规则性，其频率低于该功率谱的下降频率。
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公开(公告)号：US4868878A
公开(公告)日：1989-09-19
申请号：US077071
申请日：1987-07-28
申请人： Yoshiro Kunugi , Akio Tokumo , Toshikazu Yoshimi , Yoshio Sasaki , Shinjiro Kato , Shuuichi Mori , Makoto Odaka , Takeshi Sato
发明人： Yoshiro Kunugi , Akio Tokumo , Toshikazu Yoshimi , Yoshio Sasaki , Shinjiro Kato , Shuuichi Mori , Makoto Odaka , Takeshi Sato
摘要： A sound field correcting system for correcting for multipath frequency-characteristic distortion in an acoustic reproducing system. In one embodiment, the level and delay of an original signal are adjusted and superposed on the original signal so as to obtain a signal which, when reproduced by a loudspeaker, yields a sound pattern at a listening point having a flat frequency characteristic. The delay adjustment is effected in accordance with a difference between the travel distances of direct and reflected sound waves to the listening point.
摘要翻译： 一种用于校正声学再现系统中的多径频率特性失真的声场校正系统。 在一个实施例中，将原始信号的电平和延迟调整并重叠在原始信号上，以便获得当由扬声器再现时在具有平坦频率特性的收听点处产生声音模式的信号。 根据直接和反射的声波到收听点的移动距离之间的差异来实现延迟调整。
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公开(公告)号：US4648117A
公开(公告)日：1987-03-03
申请号：US739652
申请日：1985-05-31
申请人： Yoshiro Kunugi , Akio Tokumo , Toshikazu Yoshimi , Shinjiro Kato , Yoshio Sasaki , Makoto Odaka , Takeshi Sato
发明人： Yoshiro Kunugi , Akio Tokumo , Toshikazu Yoshimi , Shinjiro Kato , Yoshio Sasaki , Makoto Odaka , Takeshi Sato
CPC分类号： H04S7/307 , H03G3/00 , H03G5/00 , H04S1/002 , H04R2499/13
摘要： A sound field correcting device for use in a stereophonic system intended for vehicular use. Speakers are installed on opposite sides of both the front and rear seats of the vehicle. The number of persons seated in the vehicle is determined and applied to a correcting unit. When plural persons are seated in the vehicle, the sound pressure levels in the high-frequency range of loudspeakers is increased. Also, the sound pressure levels of the speakers can be corrected in accordance with the positions at which persons are seated in the vehicle.
摘要翻译： 一种在用于车辆用途的立体声系统中使用的声场校正装置。 扬声器安装在车辆前后座椅的两侧。 确定坐在车辆中的人数并将其应用于校正单元。 当多个人坐在车辆中时，扬声器的高频范围内的声压级增加。 此外，可以根据人员坐在车辆中的位置来校正扬声器的声压级。
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公开(公告)号：US4980914A
公开(公告)日：1990-12-25
申请号：US418042
申请日：1989-10-06
申请人： Yoshiro Kunugi , Akio Tokumo , Toshikazu Yoshimi , Yoshio Sasaki , Shinjiro Kato
发明人： Yoshiro Kunugi , Akio Tokumo , Toshikazu Yoshimi , Yoshio Sasaki , Shinjiro Kato
摘要： A sound field correcting system for correcting for mulitpath frequency-characteristic distortion in an acoustic reproducing system. In one embodiment, the level and delay of an original signal are adjusted and superposed on the original signal so as to obtain a signal which, when reproduced by a loudspeaker, yields a sound pattern at a listening point having a flat frequency characteristic. The delay adjustment is effected in accordance with a difference between the travel distances of direct and reflected sound waves to the listening point.
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公开(公告)号：US5208866A
公开(公告)日：1993-05-04
申请号：US619182
申请日：1990-11-27
申请人： Shinjiro Kato , Hisashi Kihara , Fumio Tamura , Shuichi Mori
发明人： Shinjiro Kato , Hisashi Kihara , Fumio Tamura , Shuichi Mori
摘要： AN on-board vehicle automatic sound volume adjusting apparatus which adjusts the level of an input audio signal in accordance with the difference between the input audio signal level and the running noise level inside the vehicle and which compresses the input audio signal in terms of amplitude according to the level difference. The apparatus inhibits the masking of the minimum component in the reproduced sound volume, and prevents the maximum component therein from becoming excessive when the running noise level is raised.
摘要翻译： 一种车载自动音量调节装置，其根据输入音频信号电平和车辆内的运行噪声电平之间的差来调节输入音频信号的电平，并按照幅度压缩输入音频信号 到水平差。 该设备禁止对再现的音量中的最小分量的掩蔽，并且当运行噪声水平升高时，防止其中的最大分量变得过大。
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公开(公告)号：US5119420A
公开(公告)日：1992-06-02
申请号：US540248
申请日：1990-06-19
申请人： Shinjiro Kato , Hisashi Kihara , Fumio Tamura , Shuichi Mori
发明人： Shinjiro Kato , Hisashi Kihara , Fumio Tamura , Shuichi Mori
摘要： A sound field correcting device provides for a natural acoustic localization of the outputs of right and left channels of an acoustic sound source. At least one of right and left channel audio signals is delayed to create a phase difference between the right and left channel audio signals, and to thus dislocate a sound in such a way that a listener not positioned equidistant between right and left channel sound sources may perceive the two channels equally.
摘要翻译： 声场校正装置提供声音声源的右声道和左声道的输出的自然声学定位。 右声道和左声道音频信号中的至少一个被延迟以在右声道和左声道音频信号之间产生相位差，并且因此使得声音不会在左右声道声源之间等距定位的方式脱位 同时感知两个通道。
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公开(公告)号：US5241605A
公开(公告)日：1993-08-31
申请号：US599052
申请日：1990-10-17
申请人： Shuichi Mori , Hisashi Kihara , Shinjiro Kato , Fumio Tamura
发明人： Shuichi Mori , Hisashi Kihara , Shinjiro Kato , Fumio Tamura
CPC分类号： H03G5/04 , H04S7/307 , H04R2499/13
摘要： A tone control apparatus for a sound system processing audio signals of front and rear channels. By providing front and rear tone control means for independently effecting the tone control in both of the front and rear channels, it is possible to prevent the generation of distortions in the front acoustic output when the control for raising the rear bass level is effected. Also, a tone control balance between the front and rear channels in a vehicle cabin, for example, can be set appropriately.
摘要翻译： 一种用于处理前和后声道的音频信号的音响系统的音调控制装置。 通过提供用于独立地实现前通道和后通道中的音调控制的前后音调控制装置，当进行用于提高后低音电平的控制时，可以防止在前声输出中产生失真。 此外，例如可以适当地设定车厢内的前后通道之间的音调控制平衡。
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公开(公告)号：US5210806A
公开(公告)日：1993-05-11
申请号：US598380
申请日：1990-10-16
申请人： Hisashi Kihara , Shinjiro Kato , Fumio Tamura , Shuichi Mori
发明人： Hisashi Kihara , Shinjiro Kato , Fumio Tamura , Shuichi Mori
CPC分类号： G10H1/125 , G10K15/02 , G10H2250/121
摘要： Disclosed herein is a digital audio signal processing apparatus of a type wherein a graphic equalizer including a plurality of filters connected in series to one another is subjected to arithmetic operation processing to be defined to thereby output the result of its processing as data therefrom. When a change-over command is generated, one filter out of the plurality of filters except for filters positioned at both ends is supplied to one of two output terminals with output data of a filter immediately before said one filter, the stored data is applied to the input of a filter immediately after said one filter and output data of a final filter is applied to the other of said two output terminals so as to define two graphic equalizers. Thus, where it is desired to carry out a change in the mode from arithmetic operation processing which defines a graphic equalizer comprising a plurality of bands to arithmetic operation processing which defines two-separated graphic equalizers comprising a plurality of bands or to the contrary, where it is desired to carry out a change in the mode contrary to the mode referred to above, the change in the arithmetic operation processing can be completed in a relatively short time.
摘要翻译： 这里公开了一种数字音频信号处理装置，其中包括彼此串联连接的多个滤波器的图形均衡器经受定义的算术运算处理，从而将其处理结果作为数据输出。 当生成转换命令时，除了位于两端的滤波器之外的多个滤波器中的一个滤波器被提供给紧邻所述一个滤波器之前的滤波器的输出数据的两个输出端子中的一个输出端子，所存储的数据被应用于 紧接在所述一个滤波器之后的滤波器的输入和最终滤波器的输出数据被施加到所述两个输出端子中的另一个，以便限定两个图形均衡器。 因此，在期望从定义包括多个频带的图形均衡器的算术运算处理中进行模式改变到定义包括多个频带的两分离图形均衡器的算术运算处理或相反地，其中 期望与上述模式相反地执行模式的改变，可以在较短的时间内完成算术运算处理的改变。
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公开(公告)号：US5107539A
公开(公告)日：1992-04-21
申请号：US542037
申请日：1990-06-22
申请人： Shinjiro Kato , Hisashi Kihara , Fumio Tamura , Shuichi Mori
发明人： Shinjiro Kato , Hisashi Kihara , Fumio Tamura , Shuichi Mori
CPC分类号： H03G3/3005 , H03G3/32
摘要： An automatic sound volume controller for use with audio equipment mounted on a vehicle adapted that the level of an input audio signal and that of the noises coming inside the cabin in running state are detected, and the difference therebetween is obtained. By use of different gain levels reflecting the level difference, a direct sound signal and an effect sound signal are individually amplified for synthesis. This makes it possible to prevent the added effect sounds from being masked by the running noises because the level of the effect sound signal varies with the noises. As a result, the reproduced sounds supplemented by the effect sounds can be heard clearly while the vehicle is running. With the vehicle in stationary state, the effect sounds are kept from getting excessive, protecting the vehicle passengers from the unpleasant sensation conventionally associated with the apparatus of this kind.
摘要翻译： 一种用于安装在车辆上的音频设备的自动音量控制器，其适用于检测输入音频信号的电平和进入驾驶室内的噪声的水平，并且获得它们之间的差异。 通过使用反映电平差的不同增益水平，直接声音信号和效果声音信号被单独放大以进行合成。 这使得可以防止由于噪声而影响声音信号的电平变化而由于运行噪声而被掩蔽的附加效果声音。 结果，在车辆行驶时可以清楚地听到由效果声音补充的再现声音。 在车辆处于静止状态时，效果声音不会过度，从而保护车辆乘客免受与这种装置通常相关的不愉快的感觉。
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