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1. 发明授权

US4790014A Low-pitched sound creator 失效
标题翻译：低调声音创作者
公开(公告)号：US4790014A
公开(公告)日：1988-12-06
申请号：US30910
申请日：1987-03-30
申请人： Koji Watanabe , Katsuhiko Hayashi , Nobuaki Minakuchi , Masayuki Misaki , Kenichi Terai , Yasutoshi Nakama , Masaharu Morita
发明人： Koji Watanabe , Katsuhiko Hayashi , Nobuaki Minakuchi , Masayuki Misaki , Kenichi Terai , Yasutoshi Nakama , Masaharu Morita
IPC分类号： G11B5/035 , H03G5/16 , H04S1/00
CPC分类号： H03G5/16 , G11B5/035
摘要： An analog sound signal is outputted. Low-frequency components are selected from the outputted analog sound signal so that a low-pitched sound signal is derived from the analog sound signal. A key of the low-pitched sound signal is lowered so that a very-low-pitched sound signal is derived from the low-pitched sound signal. The analog sound signal and the very-low-pitched sound signal may be converted into corresponding sounds respectively.
摘要翻译：输出模拟声音信号。从输出的模拟声音信号中选择低频分量，从而从模拟声音信号导出低音声音信号。降低声音信号的键被降低，从低音声信号得到非常低音的声音信号。模拟声音信号和非常低音的声音信号可以分别转换成对应的声音。

2. 发明授权

US5416846A Noise control system and method 失效
标题翻译：噪声控制系统及方法
公开(公告)号：US5416846A
公开(公告)日：1995-05-16
申请号：US249158
申请日：1994-05-25
申请人： Tadashi Tamura , Kenichi Terai , Hiroyuki Hashimoto , Yasutoshi Nakama
发明人： Tadashi Tamura , Kenichi Terai , Hiroyuki Hashimoto , Yasutoshi Nakama
IPC分类号： G06F17/10 , G10K11/178 , H03H17/00 , H03H17/04 , H03H21/00 , H04B3/04 , H04R3/00 , H04B3/00
CPC分类号： H04R3/002 , G10K11/1784 , G10K2210/1283 , G10K2210/30232 , G10K2210/3027 , G10K2210/3221
摘要： The noise control system of this invention includes: a noise detector for detecting a noise generated from a noise source in order to output a noise detection signal; an adaptive filter portion for outputting a control signal based on the noise detection signal so as to cancel the noise; a control loudspeaker for receiving the control signal that is to radiate a control sound to a predetermined region; and an error detector for detecting a residual error of the noise and the control sound in the predetermined region, wherein the adaptive filter portion includes: an adaptive filter for receiving the noise detection signal and processing the noise detection signal to output a control signal; an IIR filter section for receiving the noise detection signal, performing a filtering process to the noise detection signal according to a predetermined frequency characteristic, and outputting a first processing signal; an operation section for receiving the first processing signal, performing convolution with the first processing signal and a predetermined transfer function, and outputting a second processing signal; and a multiplying section for receiving the second processing signal and the error signal, multiplying the second processing signal by the error signal, and outputting an update signal for updating coefficients of the adaptive filter to the adaptive filter, the predetermined frequency characteristic and the predetermined transfer function being determined based on a control transfer characteristic from the control loudspeaker to the error detector.
摘要翻译：本发明的噪声控制系统包括：噪声检测器，用于检测从噪声源产生的噪声，以输出噪声检测信号; 自适应滤波器部分，用于基于噪声检测信号输出控制信号以消除噪声; 控制扬声器，用于接收将控制声音辐射到预定区域的控制信号; 以及误差检测器，用于检测预定区域中的噪声残留误差和控制声音，其中自适应滤波器部分包括：自适应滤波器，用于接收噪声检测信号并处理噪声检测信号以输出控制信号; 用于接收噪声检测信号的IIR滤波器部分，根据预定频率特性对噪声检测信号执行滤波处理，并输出第一处理信号; 操作部分，用于接收第一处理信号，执行与第一处理信号和预定传送函数的卷积，并输出第二处理信号; 以及乘法部分，用于接收第二处理信号和误差信号，将第二处理信号乘以误差信号，并将自适应滤波器的系数更新的更新信号输出到自适应滤波器，预定频率特性和预定传送功能是基于从控制扬声器到误差检测器的控制传递特性来确定的。

3. 发明授权

US4924962A Sound reproducing apparatus for use in vehicle 失效
标题翻译：用于车辆的声音再现装置
公开(公告)号：US4924962A
公开(公告)日：1990-05-15
申请号：US71829
申请日：1987-07-10
申请人： Kenichi Terai , Shuji Saiki , Kousaku Murata , Katsuaki Satoh , Yoichi Kumura , Yasutoshi Nakama , Michiko Ogawa , Shuichi Obata
发明人： Kenichi Terai , Shuji Saiki , Kousaku Murata , Katsuaki Satoh , Yoichi Kumura , Yasutoshi Nakama , Michiko Ogawa , Shuichi Obata
IPC分类号： H04R1/28
CPC分类号： H04R1/2857 , H04R1/2842 , H04R1/2865
摘要： A sound reproducing apparatus for use in a vehicle having a speaker system constituted by at least one acoustic duct and a speaker unit disposed at a throat of the acoustic duct, an opening formed at the other end of the acoustic duct facing the passenger compartment of a vehicle. The apparatus is arranged such that, F0 and Fs are substantially equal to each other. Where Fs is the lowest frequency in a frequency range within which the imaginary part of the acoustic impedance at the sound radiating surface of the speaker system in the direction of the space within the passsenger compartment is zero and F0 is the low-range resonance frequency of the speaker system itself in the free space.
摘要翻译：一种用于具有扬声器系统的车辆的声音再现装置，所述扬声器系统由设置在所述声学导管的喉部处的至少一个声学导管和扬声器单元构成，所述扬声器系统形成在所述声学导管的另一端面对所述乘客室车辆。该装置被布置成使得F0和Fs彼此基本相等。其中Fs是在扬声器系统的声辐射表面的声阻抗的虚部在乘客舱内的空间的方向上为零的频率范围内的最低频率，并且F0是低频共振频率扬声器系统本身在自由空间。

4. 发明授权

US5377276A Noise controller 失效
标题翻译：噪音控制器
公开(公告)号：US5377276A
公开(公告)日：1994-12-27
申请号：US117717
申请日：1993-09-08
申请人： Kenichi Terai , Yasutoshi Nakama , Hiroyuki Hashimoto , Tadashi Tamura
发明人： Kenichi Terai , Yasutoshi Nakama , Hiroyuki Hashimoto , Tadashi Tamura
IPC分类号： G10K11/178 , H03B29/00
CPC分类号： G10K11/1784 , G10K2210/1282 , G10K2210/3012 , G10K2210/3032 , G10K2210/3045
摘要： An active noise controller includes a prediction filter which includes a delayer for delaying the noise or error detection signal by a predetermined period of time, a first adaptive filter for processing the output of the delayer to deliver its periodic component, and a subtractor for subtracting the output of the first adaptive filter from the noise detection signal to deliver a random component of the signal. More specifically, the prediction filter is capable of dividing the noise or error detection signal into two, periodic and random, components. In addition, two, second and third, adaptive filters are provided for processing the periodic and random components respectively. Accordingly, the second and third adaptive filters become responsive precisely to their respective periodic and random components regardless of the ratio in level between the two components, whereby any undesired noise consisting of the two discrete components will be suppressed.
摘要翻译：有源噪声控制器包括预测滤波器，该预测滤波器包括用于将噪声或误差检测信号延迟预定时间段的延迟器，用于处理延迟器的输出以递送其周期性分量的第一自适应滤波器，以及减法器从噪声检测信号输出第一自适应滤波器以传送信号的随机分量。更具体地，预测滤波器能够将噪声或误差检测信号分成两个，周期性和随机分量。另外，提供两个，第二和第三个自适应滤波器用于分别处理周期性和随机分量。因此，第二和第三自适应滤波器对于它们各自的周期性和随机分量而言都是精确地响应，而与两个分量之间的电平之比无关，由此将抑制由两个分立分量组成的任何不需要的噪声。

5. 发明授权

US5388160A Noise suppressor 失效
标题翻译：噪声抑制器
公开(公告)号：US5388160A
公开(公告)日：1995-02-07
申请号：US896043
申请日：1992-06-08
申请人： Hiroyuki Hashimoto , Kenichi Terai , Yasutoshi Nakama , Hironari Ogata , Chie Yano
发明人： Hiroyuki Hashimoto , Kenichi Terai , Yasutoshi Nakama , Hironari Ogata , Chie Yano
IPC分类号： G10K11/178 , H03B29/00
CPC分类号： G10K11/1784 , G10K2210/3012 , G10K2210/3028 , G10K2210/3045
摘要： In a noise suppressor, a noise signal detected by a first detector is inputted to an adaptive filter and a FIR filter. An output signal of the adaptive filter is reproduced by a speaker. The signal reproduced by the speaker and a noise signal from a noise source are detected by a second detector. The signal detected by the second detector is band-limited by a filter circuit and sent to a LMS computing circuit. The LMS computing circuit updates a coefficient of the adaptive filter so as to minimize an output signal of the filter circuit in response to an output signal of the FIR filter and an output signal of the filter circuit.
摘要翻译：在噪声抑制器中，由第一检测器检测到的噪声信号被输入到自适应滤波器和FIR滤波器。自适应滤波器的输出信号由扬声器再现。由第二检测器检测由扬声器再现的信号和来自噪声源的噪声信号。由第二检测器检测到的信号被滤波器电路限制并发送到LMS计算电路。 LMS计算电路更新自适应滤波器的系数，以便响应于FIR滤波器的输出信号和滤波器电路的输出信号来最小化滤波器电路的输出信号。

6. 发明授权

US07386139B2 Sound image control system 有权
标题翻译：声像控制系统
公开(公告)号：US07386139B2
公开(公告)日：2008-06-10
申请号：US10454541
申请日：2003-06-05
申请人： Hiroyuki Hashimoto , Kenichi Terai , Isao Kakuhari , Takahisa Hachuda
发明人： Hiroyuki Hashimoto , Kenichi Terai , Isao Kakuhari , Takahisa Hachuda
IPC分类号： H04R5/02
CPC分类号： H04S3/008 , H04R2499/13 , H04S1/002 , H04S3/00
摘要： A sound image control system which is able to concurrently perform sound image localization control for two persons is provided. The sound image control system controls a sound image localization position by reproducing an audio signal from a plurality of loudspeakers. The sound image control system includes at least four loudspeakers for reproducing the audio signal and a signal processing section. The signal processing section sets four points corresponding to both ears of two listeners as control points, and performs signal processing for the audio signal input into the plurality of loudspeakers so that two target sound source positions indicating sound image localization positions of the respective two listeners are set in the same direction with respect to the two listeners. The two target sound source positions are set so as to satisfy the following condition, T1=T2≦T3
摘要翻译：提供能够同时对两人进行声像定位控制的声像控制系统。声音图像控制系统通过从多个扬声器再现音频信号来控制声像定位位置。声音图像控制系统包括用于再现音频信号的至少四个扬声器和信号处理部分。信号处理部分将与两个听众的双耳相对应的四个点作为控制点，并且对输入到多个扬声器中的音频信号执行信号处理，使得指示相应两个听众的声音图像定位位置的两个目标声源位置是相对于两个听众设置在相同的方向。两个目标声源位置被设定为满足以下条件：T 1

7. 发明授权

US07158644B2 Active noise control system 有权
标题翻译：主动噪声控制系统
公开(公告)号：US07158644B2
公开(公告)日：2007-01-02
申请号：US10007674
申请日：2001-12-10
申请人： Isao Kakuhari , Kenichi Terai , Hiroyuki Hashimoto
发明人： Isao Kakuhari , Kenichi Terai , Hiroyuki Hashimoto
IPC分类号： H03B29/00
CPC分类号： G10K11/178
摘要： A first rectifying net, a rectifying grid and a second rectifying net are attached, as a rectifying part upstream of a duct through which air for cooling flows. A noise detection microphone detects noise within the duct. An error detection microphone is placed in the downstream side of the noise to detect error noise. An arithmetic circuit inputs a noise signal of the noise detection microphone, carries out an arithmetic of a transfer function so that an output signal of the error detection microphone becomes minimum, and outputs a control signal to a control sound source. The control sound source radiates a control sound having approximately the same sound pressure as and an opposite phase of the noise within the duct. Thus, the coherence between the noise in the upstream and downstream parts increases, thereby enhancing a sound-muffling effect.
摘要翻译：第一整流网，整流电网和第二整流网，作为用于冷却空气的管道上游的整流部件。噪声检测麦克风检测管道内的噪音。误差检测麦克风放置在噪声的下游侧，以检测误差噪声。算术电路输入噪声检测麦克风的噪声信号，执行传递函数的算术，使得误差检测麦克风的输出信号变为最小，并将控制信号输出到控制声源。控制声源辐射具有与管道内的噪声大致相同的声压和相反相位的控制声音。因此，上游和下游部分的噪声之间的相干性增加，从而增强声音消声效果。

8. 发明授权

US06944309B2 Headphone system 失效
标题翻译：耳机系统
公开(公告)号：US06944309B2
公开(公告)日：2005-09-13
申请号：US09776480
申请日：2001-02-02
申请人： Kenichi Terai , Hiroyuki Hashimoto , Isao Kakuhari , Hiroshi Hamanaka
发明人： Kenichi Terai , Hiroyuki Hashimoto , Isao Kakuhari , Hiroshi Hamanaka
IPC分类号： H04R5/033 , H04S1/00 , H04S3/00 , H04S7/00 , H04R5/02
CPC分类号： H04S3/004 , H04R5/033 , H04R5/0335 , H04R2205/024 , H04R2460/13 , H04S7/307 , H04S2420/01
摘要： A headphone system includes a headphone; and a signal processing circuit for outputting an acoustic signal to the headphone. The headphone includes a first speaker and a third speaker for a right ear of a listener, a second speaker and a fourth speaker for a left ear of the listener, and a support for supporting the first through fourth speakers so that the first and second speakers are located forward with respect to a vertical plane including a straight line connecting the hole of the right ear and the hole of the left ear of the listener, the second and fourth speakers are located rearward with respect to the vertical plane, and the first through fourth speakers are out of contact with the right ear and the left ear of the listener.
摘要翻译：耳机系统包括耳机; 以及用于向耳机输出声信号的信号处理电路。耳机包括用于收听者右耳的第一扬声器和第三扬声器，用于收听者的左耳的第二扬声器和第四扬声器，以及用于支撑第一至第四扬声器的支撑件，使得第一扬声器和第二扬声器相对于包括连接右耳孔和直听者的左耳孔的直线的垂直平面位于前方，第二和第四扬声器相对于垂直平面位于后方，第一至第第四个发言者与听众的右耳和左耳不接触。

9. 发明授权

US06488378B1 Imaging apparatus 失效
标题翻译：成像设备
公开(公告)号：US06488378B1
公开(公告)日：2002-12-03
申请号：US09743664
申请日：2001-04-16
申请人： Toshiaki Tabuchi , Hideki Ishinaga , Takamasa Yoshikawa , Toshiyuki Ueda , Isao Kakuhari , Kenichi Terai
发明人： Toshiaki Tabuchi , Hideki Ishinaga , Takamasa Yoshikawa , Toshiyuki Ueda , Isao Kakuhari , Kenichi Terai
IPC分类号： G03B2118
CPC分类号： G03B21/16
摘要： An imaging apparatus including a projection section for projecting an image onto a screen, a cooling section for cooling the projection section by means of air, and an exterior cabinet for housing the projection section and the cooling section. The imaging apparatus further includes an exhaust section for exhausting the air used for the cooling of the projection section by the cooling section, from the exterior cabinet. The exhaust section has a function for attenuating a noise caused by the cooling section.
摘要翻译：一种成像装置，包括用于将图像投影到屏幕上的投影部分，用于通过空气冷却投影部分的冷却部分，以及用于容纳突出部分和冷却部分的外部机壳。成像装置还包括从外部机壳排出用于通过冷却部冷却突出部的空气的排气部。排气部具有用于衰减由冷却部引起的噪声的功能。

10. 发明申请

US20060188107A1 Active noise control system 失效
标题翻译：主动噪声控制系统
公开(公告)号：US20060188107A1
公开(公告)日：2006-08-24
申请号：US11407247
申请日：2006-04-20
申请人： Toshio Inoue , Hisashi Sano , Akira Takahashi , Kenichi Terai , Hiroyuki Hashimoto , Isao Kakuhari
发明人： Toshio Inoue , Hisashi Sano , Akira Takahashi , Kenichi Terai , Hiroyuki Hashimoto , Isao Kakuhari
IPC分类号： A61F11/06 , G10K11/16 , H03B29/00
CPC分类号： G10K11/178
摘要： An active noise control system is capable of canceling out noise in the passenger compartment of a vehicle based on low-frequency road noise. The active noise control system has a feed-forward control unit for being supplied with reference signals highly correlated to noise from a noise source and generating a noise cancellation signal which is out of phase to noise in the passenger compartment of the vehicle, and a canceling sound generating unit disposed in the passenger compartment for generating a noise canceling sound in response to the noise cancellation signal from said feed-forward control unit. The active noise control system also has microphones for generating reference signals which are positioned respectively near the base of the front seat, near the center of a roof, and within a trunk compartment, i.e., respectively at vibrational antinodes of a primary or secondary acoustic normal mode of the passenger compartment in the longitudinal direction thereof. Output signals from the microphones are supplied as the reference signals.
摘要翻译：主动噪声控制系统能够基于低频道路噪声消除车辆乘客舱内的噪声。主动噪声控制系统具有前馈控制单元，用于提供与来自噪声源的噪声高度相关的参考信号，并产生噪声消除信号，该噪声消除信号在车辆的乘客舱中相位相差，并且取消发声单元，其布置在所述乘客室中，用于响应于来自所述前馈控制单元的噪声消除信号产生噪声消除声音。主动噪声控制系统还具有用于产生参考信号的麦克风，其分别位于靠近车顶中心的底座附近，并且在行李箱内，即分别位于初级或次级声学正常的振动波腹处乘客舱的纵向的模式。来自麦克风的输出信号作为参考信号提供。

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