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1. 发明授权

US5119420A Device for correcting a sound field in a narrow space 失效
标题翻译：用于校正窄幅空间中的声场的装置
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
IPC分类号： G10K15/12 , H03G5/02 , H04S1/00
CPC分类号： G10K15/12 , H04S1/002
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。

2. 发明授权

US5208866A On-board vehicle automatic sound volume adjusting apparatus 失效
标题翻译：车载汽车自动声音调节装置
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
IPC分类号： H03G3/20 , H03G3/32 , H03G7/00
CPC分类号： H03G7/007 , H03G3/32
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。

3. 发明授权

US5241605A Tone control apparatus for front and rear channels 失效
标题翻译：前后通道音调控制装置
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
IPC分类号： H03G5/02 , H03G5/04 , H04R3/12 , H04S7/00
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。

4. 发明授权

US5210806A Digital audio signal processing apparatus 失效
标题翻译：数字音频信号处理设备
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
IPC分类号： H04R3/04 , G10H1/12 , G10K15/02 , H03G5/02 , H03H17/02
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。

5. 发明授权

US5107539A Automatic sound volume controller 失效
标题翻译：自动声音音量控制器
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
IPC分类号： H03G3/20 , H03G3/32
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。

6. 发明授权

US4914707A Balanced vehicular speaker system 失效
标题翻译：平衡车载扬声器系统
公开(公告)号：US4914707A
公开(公告)日：1990-04-03
申请号：US193136
申请日：1988-05-06
申请人： Shinjiro Kato , Toshikazu Yoshimi , Hideo Yamamoto , Takeshi Sato , Hisashi Kihara
发明人： Shinjiro Kato , Toshikazu Yoshimi , Hideo Yamamoto , Takeshi Sato , Hisashi Kihara
IPC分类号： H04R3/04 , H04R3/12 , H04R5/02 , H04R9/02 , H04R9/04
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。

7. 发明授权

US5396562A Signal processing circuit for audio apparatus 失效
标题翻译：音频设备信号处理电路
公开(公告)号：US5396562A
公开(公告)日：1995-03-07
申请号：US227570
申请日：1994-04-14
申请人： Shunsuke Ishimitsu , Hisashi Kihara , Shuichi Mori
发明人： Shunsuke Ishimitsu , Hisashi Kihara , Shuichi Mori
IPC分类号： H03G7/00 , H03G11/00 , H03G3/00
CPC分类号： H03G11/008 , H03G7/007
摘要： A signal processing circuit for an audio apparatus has a variable gain amplifier whose gain is varied in accordance with a gain controlling signal supplied thereto. The signal processing circuit comprises a gain setting section having a plurality of tables of input-output characteristics according to a level of loudness selected by a user. The characteristics being for the variable gain amplifier. A table selecting section selects a corresponding one of the plurality of input-output characteristics in accordance with the selected level of loudness. The table selecting section supplies the corresponding input-output characteristic to the variable gain amplifier so as to set the variable gain amplifier for a gain corresponding to the input-output characteristic.
摘要翻译：用于音频装置的信号处理电路具有可变增益放大器，其增益根据提供给其的增益控制信号而变化。信号处理电路包括根据用户选择的响度级别的具有多个输入 - 输出特性表的增益设置部分。特性适用于可变增益放大器。表选择部分根据所选择的响度来选择多个输入 - 输出特性中的相应一个。表选择部分将相应的输入 - 输出特性提供给可变增益放大器，以便将可变增益放大器设置为与输入 - 输出特性对应的增益。

8. 发明授权

US5524022A Digital graphic equalizer 失效
标题翻译：数字图形均衡器
公开(公告)号：US5524022A
公开(公告)日：1996-06-04
申请号：US288215
申请日：1994-08-09
申请人： Hisashi Kihara , Shuichi Mori , Akira Kanagawa , Atsushi Makino , Shinya Honjo , Masayuki Kato
发明人： Hisashi Kihara , Shuichi Mori , Akira Kanagawa , Atsushi Makino , Shinya Honjo , Masayuki Kato
IPC分类号： H03H15/00 , H03G5/00 , H03G5/02 , H03H17/02 , H03H17/04 , H03H21/00 , H04B3/04 , G10K15/00 , H03H7/30
CPC分类号： H03G5/005 , H03H17/04
摘要： A digital graphic equalizer for obtaining a boost characteristic and an attenuation characteristic using band pass filters, each constituted by a digital filter, and an adder. For a boost characteristic, an input signal is supplied to first band pass filters and resultant filtered signals and the input signal are added by a first adder. For an attenuation characteristic, the output signal of a second adder is fed back to second band pass filters and resultant filtered signals and the input signal are added by a second adder.
摘要翻译：一种数字图形均衡器，用于获得每个由数字滤波器构成的带通滤波器的升压特性和衰减特性，以及加法器。对于升压特性，输入信号被提供给第一带通滤波器和结果滤波信号，并且输入信号由第一加法器相加。对于衰减特性，第二加法器的输出信号被反馈到第二带通滤波器并且产生的滤波信号，并且输入信号由第二加法器相加。

9. 发明授权

US5010437A Recording medium player apparatus 失效
标题翻译：记录媒体播放器装置
公开(公告)号：US5010437A
公开(公告)日：1991-04-23
申请号：US488826
申请日：1990-03-06
申请人： Nobuo Utsugi , Hisashi Kihara , Shuichi Mori , Junichi Fuse , Takashi Miyake , Yoshikatsu Ikata
发明人： Nobuo Utsugi , Hisashi Kihara , Shuichi Mori , Junichi Fuse , Takashi Miyake , Yoshikatsu Ikata
IPC分类号： G11B15/10 , G11B15/675 , G11B31/00 , G11B33/02 , G11B33/12
CPC分类号： G11B33/123 , G11B15/10 , G11B15/675 , G11B31/00 , G11B33/027
摘要： A recording medium player apparatus including an open/close body which is disposed so as to openably cover a recording medium insertion slot formed in the front surface portion of a housing. The open/close body has an operation portion for controlling the operation of a play mechanism. The apparatus further includes a support member for pivotally supporting at a free end thereof the open/close body. A spring member constitutes a first driving mechanism for pivoting the support member. The spring member, a gear disposed on the support member, and a pair of fan-like gears which mesh with the gear disposed on the support member constitute a second driving mechanism for pivoting the open/close body relative to the support member in synchronism with the pivotal movement of the support member. This configuration enables the pivotal portion of the open/close body to be disposed at a rear surface portion of the open/close such that the pivotal portion is covered by the front panel portion of the open/close body when the open/close body is in a closed position.

10. 发明授权

US5255325A Signal processing circuit in an audio device 失效
标题翻译：音频设备中的信号处理电路
公开(公告)号：US5255325A
公开(公告)日：1993-10-19
申请号：US913620
申请日：1992-07-16
申请人： Shunsuke Ishimitsu , Hisashi Kihara , Shuichi Mori
发明人： Shunsuke Ishimitsu , Hisashi Kihara , Shuichi Mori
IPC分类号： H03G7/00 , H03G3/00
CPC分类号： H03G7/005 , H03G7/00
摘要： A signal processing circuit in an audio device includes a variable gain control section for providing a variable amplification gain to an input signal in response to a gain control signal, an input signal level detecting section for detecting a level of the input signal and for generating a corresponding detection signal, and a time constant setting section for storing a plurality of time constant tables. Each one of the plurality of time constant tables includes a set of input signal delay characteristics corresponding to a predetermined level of the input signal. A time constant selecting section selects one of the plurality of time constant tables in the time constant setting section in response to the detection signal. The gain control signal is determined by the selected one of the plurality of time constant tables and the amplification gain of the variable gain control section is varied according to the selected one of the plurality of time constant tables.
摘要翻译：音频装置中的信号处理电路包括可变增益控制部分，用于响应于增益控制信号向输入信号提供可变放大增益;输入信号电平检测部分，用于检测输入信号的电平并产生相应的检测信号，以及用于存储多个时间常数表的时间常数设定部分。多个时间常数表中的每一个包括与输入信号的预定电平相对应的一组输入信号延迟特性。时间常数选择部分响应于检测信号选择时间常数设置部分中的多个时间常数表中的一个。所述增益控制信号由所述多个时间常数表中选择的一个确定，并且所述可变增益控制部的放大增益根据所述多个时间常数表中选择的一个来改变。

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