公开(公告)号：US4981194A

公开(公告)日：1991-01-01

申请号：US259513

申请日：1988-10-18

申请人： Yoshiyuki Kamon ,  Masahiko Iso ,  Makoto Yamagishi

发明人： Yoshiyuki Kamon ,  Masahiko Iso ,  Makoto Yamagishi

IPC分类号： H04R1/08 ,  H04R1/10 ,  H04R1/22

CPC分类号： H04R1/22 ,  H04R1/08 ,  H04R1/1016

摘要： An electro-acoustic transducer includes a housing enclosing an electro-acoustic transducer device and having an opening by which the diaphragm side of the transducer device is exposed to the outside, and a ring provided to the outer surface of the perimeter of the opening. The outer perimeter of the ring is adapted to be softer and more pliable than the housing.

公开(公告)号：US4742887A

公开(公告)日：1988-05-10

申请号：US13939

申请日：1987-02-12

申请人： Makoto Yamagishi

发明人： Makoto Yamagishi

IPC分类号： H04R1/10 ,  H04R1/22 ,  H04R1/28 ,  H04R9/06 ,  H04R25/00

CPC分类号： H04R1/22 ,  H04R1/2857 ,  H04R1/1016 ,  H04R1/2888

摘要： An earphone has a housing divided by a driver unit into front and back cavities with a sound generation opening at the front thereof, a duct extending from the back cavity of the housing and having a length substantially larger than its diameter, and a casing attached to the housing and communicating with the back cavity through a pipe having a length longer than its diameter, with the resonant frequency determined by the casing and pipe being made near to the resonant frequency determined by the equivalent mass of the vibration system, that is, the diaphragm and voice coil of the driver unit, and by the compliance of the back cavity, so that the lowest resonant frequency of the earphone can be lowered while the peak that would otherwise be formed in the frequency characteristic of the earphone by the resonance between the back cavity and mass of the vibration system can be supressed for improving the high frequency characteristic.

摘要翻译： 耳机具有由驱动器单元划分成前和后腔的壳体，其前部具有声音产生开口，从壳体的后腔延伸并具有基本上大于其直径的长度的管道，以及附接到 壳体并且通过长度大于其直径的管道与后腔连通，由壳体和管道确定的谐振频率接近由振动系统的等效质量确定的谐振频率，即， 驱动器单元的隔膜和音圈以及背腔的顺应性，使得耳机的最低谐振频率可以降低，否则将在耳机的频率特性中形成的峰值由于耳机的频率特性 可以抑制后腔和质量的振动系统，以改善高频特性。

公开(公告)号：US4651559A

公开(公告)日：1987-03-24

申请号：US812622

申请日：1985-12-23

申请人： Hidekazu Horigome ,  Takahiro Onishi ,  Makoto Yamagishi

发明人： Hidekazu Horigome ,  Takahiro Onishi ,  Makoto Yamagishi

IPC分类号： G01M3/28

CPC分类号： G01M3/2815 ,  G01M3/2807

摘要： A method and apparatus for measuring a gas pressure gradient in each of the upstream and downstream parts of a gas pipe line and detecting a leak in the gas pipe line in accordance with the pressure gradients. When a gas leak occurs, the gas pressure at the position of the leak is decreased and at least the pressure gradient upstream of this position is increased. When the difference between the upstream pressure gradient and the downstream pressure gradient is greater than a predetermined value, the occurrence of a gas leak is determined. Also, the occurrence of a gas leak is determined when each of the displacement of the upstream pressure gradient and the displacement of the downstream pressure gradient attains a predetermined relation.

摘要翻译： 一种用于测量气体管线的每个上游和下游部分中的气体压力梯度并根据压力梯度检测气体管道中的泄漏的方法和装置。 当发生气体泄漏时，泄漏位置处的气体压力降低，并且至少该位置上游的压力梯度增加。 当上游压力梯度和下游压力梯度之间的差值大于预定值时，确定气体泄漏的发生。 此外，当上游压力梯度的位移和下游压力梯度的位移达到预定关系时，确定气体泄漏的发生。

公开(公告)号：US08885865B2

公开(公告)日：2014-11-11

申请号：US13501736

申请日：2011-07-13

申请人： Makoto Yamagishi

发明人： Makoto Yamagishi

IPC分类号： H04R1/28 ,  H04R1/10

CPC分类号： H04R1/2857 ,  H04R1/1016

摘要： A technology which improves frequency characteristics by an acoustic method so that, when a sound-isolating earphone is attached to a human ear, the sound is heard with natural frequency characteristics is provided. In a sound path from a diaphragm of an electro-acoustic transducer inside a sound-isolating earphone to the eardrum passing through a cylindrical sound leading pipe via the external auditory canal, two independent paths for sound waves are provided in the sound leading pipe, and transfer of the sound with a specific frequency is suppressed by adjusting a difference in length of the paths, whereby the frequency characteristics of the sound passing through this sound path are improved.

摘要翻译： 提供通过声学方法提高频率特性的技术，使得当隔离耳机附接到人耳时，提供具有固有频率特性的声音。 在隔音耳机内的电声换能器的隔膜通过外耳道穿过圆筒形声音导管的鼓膜的声音路径中，在导声管中设置两声独立声波， 通过调节路径的长度差来抑制特定频率的声音的传送，从而提高通过该声道的声音的频率特性。

公开(公告)号：US20090154755A1

公开(公告)日：2009-06-18

申请号：US11910321

申请日：2007-02-01

申请人： Makoto Yamagishi ,  Toru Sasaki

发明人： Makoto Yamagishi ,  Toru Sasaki

IPC分类号： H04R25/00

CPC分类号： H04R5/033 ,  H04R1/1066 ,  H04R1/26 ,  H04R1/2819 ,  H04R1/2865 ,  H04R1/345 ,  H04R5/0335 ,  H04R2205/024 ,  H04R2460/13

摘要： A reproduced sound of high quality is allowed to be listened to by a listener while natural sound image localization is provided. By providing a housing 4L having internal space mounted at a predetermined position of the head of the listener, a speaker unit 7L mounted on one surface of the housing 4L and positioned away from an entrance of an external acoustic meatus of the listener for a predetermined distance when the housing 4L is mounted on the head 100 of the listener, and a tubular duct 8L extended so as to allow a sound generated by the housing 4L to reach the vicinity of the entrance of the external acoustic meatus of the listener, the sound generated by the housing 4L can be directly reached to an eardrum 103L in the inside of the external acoustic meatus from the vicinity of the entrance of the external acoustic meatus of the listener via a tubular duct 8L. In this manner, a sound at an sufficient level can be listened to by the listener while the natural sound image localization is provided as an open type.

摘要翻译： 当提供自然的声音图像定位时，听众可以听到高质量的再生声音。 通过设置具有安装在收听者的头部的预定位置的内部空间的壳体4L，安装在壳体4L的一个表面上并且远离收听者的外部声学物体的入口定位的扬声器单元7L，预定距离 当壳体4L安装在收听者的头部100上时，并且管状管道8L被延伸以允许由壳体4L产生的声音到达收听者的外部声学入口的附近，产生的声音 通过壳体4L可以经由管状管道8L从收听者的外耳道的入口附近直接到达外耳道内侧的鼓膜103L。 以这种方式，可以由收听者收听足够水平的声音，同时提供自然声音图像定位作为开放式。

公开(公告)号：US20080253604A1

公开(公告)日：2008-10-16

申请号：US11998923

申请日：2007-12-03

申请人： Makoto Yamagishi ,  Hideki Seki ,  Noriyuki Hiyama ,  Yukimasa Yamaguchi ,  Takeshi Hara

发明人： Makoto Yamagishi ,  Hideki Seki ,  Noriyuki Hiyama ,  Yukimasa Yamaguchi ,  Takeshi Hara

IPC分类号： H04R25/00

CPC分类号： H04R5/033 ,  H04R1/1066 ,  H04R1/26 ,  H04R1/2819 ,  H04R1/2865 ,  H04R1/345 ,  H04R5/0335 ,  H04R2201/107 ,  H04R2460/13

摘要： An ear speaker device includes an electroacoustic transducer including a housing mounted at a predetermined position of listener's head, a speaker unit mounted on one surface in the housing, and positioned away from an entrance of the listener's external acoustic meatus for a predetermined distance when the housing is mounted on the listener's head, and a tubular duct extended so as to allow a sound generated by the housing in the inner space thereof to reach the vicinity of the entrance of the listener's external acoustic meatus, and a hole for emitting sound of the duct is oriented to the opposite direction with respect to the entrance of the external acoustic meatus; and a mounting part used for mounting the electroacoustic transducer on the listener's head in a manner that the predetermined distance is provided between the speaker unit and the entrance of the listener's external acoustic meatus.

摘要翻译： 耳式扬声器装置包括电声换能器，其包括安装在收听者头部的预定位置处的壳体，安装在壳体中的一个表面上的扬声器单元，并且当外壳的外壳处于预定距离时远离收听者的外耳道的入口定位 安装在收听者的头部上，并且管状管道延伸以允许由其内部空间中的壳体产生的声音到达收听者的外部声道的入口附近，以及用于发射管道的声音的孔 相对于外耳道的入口朝向相反方向; 以及用于将电声换能器安装在收听者头部上的安装部分，其方式是在扬声器单元和收听者的外耳道的入口之间提供预定距离。

公开(公告)号：US20080118078A1

公开(公告)日：2008-05-22

申请号：US11977245

申请日：2007-10-24

申请人： Kohei Asada ,  Makoto Yamagishi

发明人： Kohei Asada ,  Makoto Yamagishi

IPC分类号： H04R1/10

CPC分类号： H04S3/008

摘要： The first signal not higher than a predetermined frequency is output to a subwoofer out of the multichannel reproduction signals supplied from a sound source and, at the same time, the second signal higher than the predetermined frequency is output to a plurality of non-closed type headphones and the signals are processed for each of the channels corresponding to a plurality of headphones, considering links of the low tones to be output from the subwoofer according to the first signal and medium to high tones to be output from the plurality of non-closed type headphones according to the second signal.

摘要翻译： 不超过预定频率的第一信号从声源提供的多通道再现信号中被输出到超低音扬声器，并且同时将高于预定频率的第二信号输出到多个非闭合型 针对与多个耳机相对应的每个通道处理耳机并且信号，考虑根据第一信号从低音扬声器输出的低音调的链路，并从多个非闭合音频输出从中到高音调的链路 根据第二个信号键入耳机。

公开(公告)号：US4727748A

公开(公告)日：1988-03-01

申请号：US812911

申请日：1985-12-23

申请人： Hidekazu Horigome ,  Takahiro Onishi ,  Makoto Yamagishi

发明人： Hidekazu Horigome ,  Takahiro Onishi ,  Makoto Yamagishi

IPC分类号： G01M3/28 ,  G01M3/26

CPC分类号： G01M3/2807

摘要： A leak detecting method and apparatus for a gas pipe line in which the inflow rate Qin or the outflow rate Qout is measured from instant to instant at each of all the inlet and outlet ports of the gas pipe line and the presence or absence of a gas leak is determined in accordance with the measured values. The measured inflow rates Qin and outflow rates Qout are respectively integrated over a given period of time and the occurrence of a gas leak is determined when the sum .SIGMA..intg.Qdt of the integrated values deviates from a predetermined value. On that occasion, in accordance with the data obtained by these calculations the relation between the integration time and the standard deviation of .intg.Qindt-.intg.Qoutdt/.intg.Qindt is calculated so that in accordance with the relation an integration time T corresponding to a rate of leakage to be detected is determined and the integration over time is performed from each of a plurality of time instants shifted from each other by an integral fraction of the integration time T whereby the above-mentioned determination is made each time the integration time T is reached.

摘要翻译： 一种用于气体管线的泄漏检测方法和装置，其中在气体管线的所有入口和出口的每一个处即时测量流入速率Qin或流出速率Qout，以及是否存在气体 根据测量值确定泄漏。 测量的流入速率Qin和流出速率Qout分别在给定时间段内积分，并且当积分值的总和SIGMA INTEGRAL Qdt偏离预定值时，确定气体泄漏的发生。 在这种情况下，根据通过这些计算获得的数据，计算积分时间与INTEGRAL Qindt-INTEGRAL Qoutdt / INTEGRAL Qindt的标准偏差之间的关系，使得根据关系式，对应于 确定要检测的泄漏，并且从多个时刻中的每一个通过积分时间T的积分分数来执行随时间的积分，从而每当达到积分时间T时进行上述确定 。