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71. 发明专利

JPS63308499A SOUND COLLECTOR 失效
公开(公告)号：JPS63308499A
公开(公告)日：1988-12-15
申请号：JP14470287
申请日：1987-06-10
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： IBARAKI SATORU , MATSUMOTO MICHIO , FUJIMURA KATSUNORI
IPC分类号： H04R3/00
摘要： PURPOSE:To effectively remove only a wind noise by providing a function for detecting the wind noise and controlling a noise suppressing filter according to the detected result. CONSTITUTION:The output of a microphone 1 is separated to a high frequency band signal and a low frequency band signal by a high pass filter 2 and a low pass filter 3. The signals of these two frequency bands are inputted to a high frequency amplitude calculating part 4 and a low frequency amplitude calculating part 5 to obtain the amplitude values of the respective frequency bands. The two amplitude value are inputted to a decision part 6, compared to decide a sound signal or the wind noise. Namely, in the decision part 6, when the amplitude value of the low frequency band signal is abnormally high in comparison with the amplitude value of the high frequency band signal, it is decided to be the wind noise. Thereby, a wind noise suppressor in which when the wind is weak, a wind noise removing function consisting of a noise removing filter 7 is not operated nor is a deterioration in a sound quality at the time of no wind, can be attained.

72. 发明专利

JPS6252419A SOUND SENSOR 失效
公开(公告)号：JPS6252419A
公开(公告)日：1987-03-07
申请号：JP19243385
申请日：1985-08-30
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： MATSUMOTO MICHIO , FUJIMURA KATSUNORI , HATTORI KATSUJI , NAONO HIROYUKI
IPC分类号： G01H9/00 , G10K15/00 , H04R23/00
摘要： PURPOSE:To facilitate the coupling of a rod lens with a single mode optical fiber, by newly adding a partial reflective mirror to upgrade the function of the rod lens to the single function coupled with the single mode optical fiber. CONSTITUTION:A partial reflective mirror 3 is newly added to upgrade the function of a rod lens 2 to the single function coupled with a single mode optical fiber 1 and an optical interference system is constituted of the partial reflective mirror 3 and a sound receiving vibration plate 4. By this method, in the alignment of the optical axes of the single mode optical fiber 1 with the rod lens 2, a fine adjustment of a flap angle is omitted and only the fine adjustment of positions X, Y, Z is necessary and the assembling of a sound sensor becomes easy.

73. 发明专利

JPS61264500A PHOTO/ACOUSTIC SENSOR 失效
公开(公告)号：JPS61264500A
公开(公告)日：1986-11-22
申请号：JP10751085
申请日：1985-05-20
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： NAONO HIROYUKI , MATSUMOTO MICHIO , FUJIMURA KATSUNORI , HATTORI KATSUJI
IPC分类号： G02B6/00 , G01B11/02 , G02F1/21 , G08C15/00 , G08C23/00 , G08C23/04

74. 发明专利

JPS61122529A Sensor head for light power meter 失效
标题翻译：光功率计传感器头
公开(公告)号：JPS61122529A
公开(公告)日：1986-06-10
申请号：JP24514084
申请日：1984-11-20
申请人： Matsushita Electric Ind Co Ltd
发明人： MATSUMOTO MICHIO , NAONO HIROYUKI , HATTORI KATSUJI , FUJIMURA KATSUNORI
IPC分类号： G01J1/04 , G01J1/42
CPC分类号： G01J1/04 , G01J1/0204 , G01J1/0407 , G01J1/4257
摘要： PURPOSE:To measure the light power of light to be measured even when reflected light has the same spatial propagation optical path with incident light to a reflecting body by providing a nonpolarization beam splitter which splits only light power into a transmitted and a diffracted component while maintaining the polarized component of the light to be measured and a photodetecting element. CONSTITUTION:The 1st incident light A striking the 1st incidence/projection surface 11a of a nonpolarization beam splitter (BS)11 through the 1st aperture part 10a has only its light power split into the transmitted component B and diffracted component C by the BS11 while its polarized component is maintained. The component B is projected out and the component C is made incident on the photodetection surface 12a of the photodetecting element 12 and converted photoelectrically by the element 12, whose output signal is transmitted to a light power meter body. The 2nd incident light B striking the end surface 11b of the BS11 through an aperture part 10b is split into a transmitted component E and a diffracted component F by the BS11 similarly; and the component E is projected from the aperture part 10a and the component F is projected from the BS11.
摘要翻译：目的：即使当反射光具有与入射光相同的空间传播光路到反射体时，也要测量被测光的光功率，通过提供非偏振光束分离器，其将光功率分裂成透射和衍射分量，同时保持要测量的光的偏振分量和光电检测元件。构成：通过第一开口部分10a撞击非极化分束器（BS）11的第一入射/投影表面11a的第一入射光A只有其光功率被BS11分为透射分量B和衍射分量C，而其维持极化分量。将部件B投射出来，使成分C入射到受光元件12的光检测面12a上，并将其输出信号传递给光功率计主体的元件12进行光电转换。通过开孔部分10b撞击BS11的端面11b的第二入射光B类似地被BS11分成透射分量E和衍射分量F; 并且部件E从开口部分10a突出，并且部件F从BS11突出。

75. 发明专利

JPS61120925A Compound sensor for vibration sound 失效
标题翻译：用于振动声的复合传感器
公开(公告)号：JPS61120925A
公开(公告)日：1986-06-09
申请号：JP24378484
申请日：1984-11-19
申请人： Matsushita Electric Ind Co Ltd
发明人： NAONO HIROYUKI , MATSUMOTO MICHIO , FUJIMURA KATSUNORI , HATTORI KATSUJI
IPC分类号： G01H9/00 , H04R23/00
CPC分类号： G01H9/00
摘要： PURPOSE:To obtain a compound sensor which is capable of measuring changes both in the frequency and the intensity simultaneously, by building up both vibration and sound detector sections with a laser light source, a optical branch, an optical fiber, a repeated multiplex reflection chamber, a photo detector and the like as the same element. CONSTITUTION:A laser light leaving a laser light source 1 is divided with an optical branch 2 into a branch light travelling to a photo detector 8 and a straight light travelling straight to an optical fiber 3. The straight light is converted to a parallel light with a lens 4 and enters a reflection chamber 5, through which a part thereof is transmitted while a part thereof is reflected with a diaphragm 6 to be returned to the photo detector 8 via the optical branch 2 with the repetition of multiplex reflections. On the other hand, the light transmitted through the reflection chamber 5 is reflected on a surface 12 to be measured in the vibration, changed in the frequency due to Doppler shift according to the vibration rate and reaches the photo detector 8 again via the reflection chamber 5, the optical fiber 3 and the photo branch 2. Then, the sound pressure applied on the diaphragm 6 can be detected by reading changes in the intensity of the output of the photo detector 8 with a level meter 11 while the vibration of the surface 12 being measured by gauging the frequency with a spectrum analyzer 10.
摘要翻译：目的：为了获得能够同时测量频率和强度变化的复合传感器，通过用激光光源，光分支，光纤，重复的多路反射室建立振动和声音检测器部分，光检测器等作为相同元件。构成：将离开激光光源1的激光与光分支2分割为分支光，该分支光向光电检测器8行进，直线向直线行进至光纤3.直线光转换为平行光，透镜4并进入反射室5，其一部分透过该反射室5，其一部分被隔膜6反射，并通过光分支2重复多次反射而返回到光检测器8。另一方面，透过反射室5的光在被振动的表面12上被反射，由于根据振动速率的多普勒频移而频率变化，从而经由反射室再次到达光检测器8 5，光纤3和光分支2.然后，通过用电平计11读取光电检测器8的输出强度的变化来检测施加在隔膜6上的声压，同时表面的振动 12通过用频谱分析仪10测量频率来测量。

76. 发明专利

JPS6118300A Optical microphone 失效
标题翻译：光学麦克风
公开(公告)号：JPS6118300A
公开(公告)日：1986-01-27
申请号：JP13843084
申请日：1984-07-04
申请人： Matsushita Electric Ind Co Ltd
发明人： MATSUMOTO MICHIO , FUJIMURA KATSUNORI
IPC分类号： G01D5/26 , G01D5/30 , G01H9/00 , G02B6/00 , G02B26/02 , H04R23/00
CPC分类号： H04R23/008
摘要： PURPOSE:To attain ease of setting of an optimum operating point of a repetitive reflection interference system of a sound receiving section by providing a photodetector coupled optically to a radiating end of a feedback light from a flat sound receiving plate propagated through an optical fiber of an optical branching device. CONSTITUTION:The light of single wavelength irradiated from a continuous wavelength variable light source 30 is led to the optical branching device 32 and divided into two; reference light (j) and measured light (k). The reference light (j) is subject to photoelectric conversion by a reference light detector 33. On the other hand, the measured light (k) is propagated inside of the optical fiber 35 and led to the inside of the repetitive reflection interference system formed with the flat sound receiving plate 36 and the end face of the optical fiber 35. The light is reflected repetitively and the light fed back to the optical fiber 35 through the repetitive reflection interference system is led to the signal light detector 37 via the branching device 32 and subject to photoelectric conversion. The outputs of the photodetectors 33, 37 are amplified differentially by a differential amplifier 38 and the result is extracted from the output terminal 39.
摘要翻译：目的：为了容易地设置声音接收部分的重复反射干涉系统的最佳工作点，通过提供一光学器件，该光电检测器光耦合到来自平板声接收板的反射光的辐射端，该平板声传播板通过光分路器。构成：从连续波长可变光源30照射的单波长的光被引导到光分支器件32并分成两部分; 参考光（j）和测量光（k）。参考光（j）由参考光检测器33进行光电转换。另一方面，测量光（k）在光纤35的内部传播并被导向形成有反射干涉系统的内部平坦的声音接收板36和光纤35的端面。光被反射地反射，并且通过重复反射干涉系统反馈到光纤35的光经由分支装置32被引导到信号光检测器37 并进行光电转换。光电检测器33,37的输出由差分放大器38差分放大，结果从输出端39提取。

77. 发明专利

JPS6024637B2 失效
公开(公告)号：JPS6024637B2
公开(公告)日：1985-06-13
申请号：JP12005080
申请日：1980-08-29
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： NAONO HIROYUKI , MATSUMOTO MICHIO , FUJIMURA KATSUNORI , KASHIWA HIDEAKI , YASUNO ISANAGA
IPC分类号： H04R5/027 , H04R3/00 , H04S7/00

78. 发明专利

JPS6020960B2 失效
公开(公告)号：JPS6020960B2
公开(公告)日：1985-05-24
申请号：JP167777
申请日：1977-01-10
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： NAONO HIROYUKI , IBARAKI SATORU , MATSUMOTO MICHIO , ATOJI NOBUHISA , SUZUMURA MASAKI
IPC分类号： H04R17/02 , H04R17/00

79. 发明专利

JPS6046198A POSITIONING METHOD OF DIAPHRAGM IN MICROPHONE USING SELF-COUPLING EFFECT OF SEMICONDUCTOR LASER 失效
公开(公告)号：JPS6046198A
公开(公告)日：1985-03-12
申请号：JP15461283
申请日：1983-08-23
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： MATSUMOTO MICHIO , FUJIMURA KATSUNORI
IPC分类号： H04R23/00 , H01S5/00 , H04R31/00
摘要： PURPOSE:To set a diaphragm in the most suitable position to obtain a wide- dynamic range microphone by adjusting finely the length between a semiconductor laser and the diaphragm. CONSTITUTION:A general constitution indicating an example of a length fine adjusting means which adjusts finely the length between a diaphragm 4 and a semiconductor laser 1 is shown in a figure, and an electrostatic power is utilized there. A length A between the diaphragm 4 and the laser 1 is varied by the voltage of a DC voltage source 8. In case of adjustment, the length between the diaphram 4 and the laser 1 is varied by the length adjusting means while keeping an impressed acoustic pressure as it is, and this length is so set that the distortion of the microphone output is minimum. The impressed acoustic pressure is increased a little to adjust finely furthermore the length so that the distortion of the microphone output is minimum. The impressed acoustic pressure is increased stepwise to repeat fine adjustment, thereby attaining the most suitable position of the diaphragm 4.

80. 发明专利

JPS59211011A Optical receptacle 失效
标题翻译：光学接收器
公开(公告)号：JPS59211011A
公开(公告)日：1984-11-29
申请号：JP8613783
申请日：1983-05-16
申请人： Matsushita Electric Ind Co Ltd
发明人： FUJIMURA KATSUNORI , MATSUMOTO MICHIO
IPC分类号： G02B6/42 , H01L31/02 , H01L33/58
CPC分类号： G02B6/4292 , G02B6/4204
摘要： PURPOSE:To reduce a coupling loss of a light emitting element and a photodetector, and an optical fiber by providing a condensing lens and a parallel beam forming lens on a light emitting end and a photodetecting end. CONSTITUTION:A light passing through an optical fiber 2 of an optical connector 1 is formed to a parallel beam, made incident to a photodetector 4 in a receptacle 3, and converted to an electrical signal. With regard to a light emitting end part, too, in the same way, a light from a light emitting element 7 becomes radial temporarily, but it is condensed by a condensing lens 10 consisting of a cylindrical plane end lens, coupled with the optical fiber 2 of the optical connector 1 and transmitted. The convex lens is a cylindrical plane end lens, and it is constituted so that the refractive index becomes smaller toward the outside from the center of a circle. The focal distance is determined by a length of the cylinder, and a focus exists in the end of the cylider.
摘要翻译：目的：通过在发光端和受光端提供聚光透镜和平行光束形成透镜来减少发光元件和光电检测器的耦合损耗以及光纤。构成：通过光连接器1的光纤2的光被形成为平行光束，入射到插座3中的光电检测器4，并转换成电信号。对于发光端部，也以相同的方式，来自发光元件7的光暂时变为径向，但是通过由圆柱形的平面端部透镜构成的聚光透镜10会聚，与光纤 2，并传输。凸透镜是圆柱形平面端透镜，并且构成为从圆的中心朝向外侧的折射率变小。焦距由圆筒的长度确定，焦点存在于轮胎的末端。

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