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    • 3. 发明授权
    • Method and device for distance measurement by pulse radar
    • 脉冲雷达测距方法及装置
    • US07233279B2
    • 2007-06-19
    • US11019378
    • 2004-12-23
    • Masayoshi MoriyaSatoshi IshiiTetsuo SekiKazuaki HamadaKenji OkaAkihiro Ohta
    • Masayoshi MoriyaSatoshi IshiiTetsuo SekiKazuaki HamadaKenji OkaAkihiro Ohta
    • G01S13/08G01S13/12
    • G01S13/20G01S13/18G01S13/227G01S13/24
    • In order to provide the method and the device for distance measurement by pulse radar that securely eliminates the false echo from the distance over the detectable limit determined by the pulse generation cycle, the pulse radar comprises the pulse signal sending unit that generates the pulse signals with different cycles at OSC 9a˜9c, switches to the predetermined intervals by OSC switch 10, and sends the pulse signal to targets, the reflected signal receiving unit that receives the reflected signals and stores the data in the RAM 25, the reflected signal data acquisition unit that obtains the data of each reflected signal, and the reflected signal identification unit that compares the intensity of the reflected signals obtained at the same lag time point during a certain time period after sending the pulse signal for reference and identifies the reflected signals of the sent pulse signal for reference.
    • 为了提供通过脉冲雷达进行距离测量的方法和装置,从脉冲发生周期确定的可检测限度的距离安全地消除假回波,脉冲雷达包括产生脉冲信号的脉冲信号发送单元, 在OSC 9 a〜9 c处的不同周期,由OSC开关10切换到预定间隔,并将脉冲信号发送到目标,反射信号接收单元接收反射信号并将数据存储在RAM 25中,反射信号 数据获取单元,其获得每个反射信号的数据;以及反射信号识别单元,其在发送用于参考的脉冲信号之后的特定时间段内比较在相同滞后时间点获得的反射信号的强度,并且识别反射信号 的发送脉冲信号供参考。
    • 5. 发明申请
    • Method and device for distance measurement by pulse radar
    • 脉冲雷达测距方法及装置
    • US20060055590A1
    • 2006-03-16
    • US11019378
    • 2004-12-23
    • Masayoshi MoriyaSatoshi IshiiTetsuo SekiKazuaki HamadaKenji OkaAkihiro Ohta
    • Masayoshi MoriyaSatoshi IshiiTetsuo SekiKazuaki HamadaKenji OkaAkihiro Ohta
    • G01S13/08
    • G01S13/20G01S13/18G01S13/227G01S13/24
    • In order to provide the method and the device for distance measurement by pulse radar that securely eliminates the false echo from the distance over the detectable limit determined by the pulse generation cycle, the pulse radar comprises the pulse signal sending unit that generates the pulse signals with different cycles at OSC 9a˜9c, switches to the predetermined intervals by OSC switch 10, and sends the pulse signal to targets, the reflected signal receiving unit that receives the reflected signals and stores the data in the RAM 25, the reflected signal data acquisition unit that obtains the data of each reflected signal, and the reflected signal identification unit that compares the intensity of the reflected signals obtained at the same lag time point during a certain time period after sending the pulse signal for reference and identifies the reflected signals of the sent pulse signal for reference.
    • 为了提供通过脉冲雷达进行距离测量的方法和装置,从脉冲发生周期确定的可检测限度的距离安全地消除假回波,脉冲雷达包括产生脉冲信号的脉冲信号发送单元, 在OSC 9 a〜9 c处的不同周期,由OSC开关10切换到预定间隔,并将脉冲信号发送到目标,反射信号接收单元接收反射信号并将数据存储在RAM 25中,反射信号 数据获取单元,其获得每个反射信号的数据;以及反射信号识别单元,其在发送用于参考的脉冲信号之后的特定时间段内比较在相同滞后时间点获得的反射信号的强度,并且识别反射信号 的发送脉冲信号供参考。
    • 6. 发明授权
    • Piezoelectric electroacoustic transducer
    • 压电式电声换能器
    • US06969942B2
    • 2005-11-29
    • US10741170
    • 2003-12-19
    • Tetsuo TakeshimaTakeshi KishimotoTakashi YamamotoKazuaki Hamada
    • Tetsuo TakeshimaTakeshi KishimotoTakashi YamamotoKazuaki Hamada
    • H04R17/00H01L41/08
    • H04R31/003H04R1/06H04R17/00H04R2307/023
    • A piezoelectric electroacoustic transducer eliminates the need for the interconnection between main surface electrodes and internal electrodes, and is capable of constructing a bimorph diaphragm using a simple connection structure. The piezoelectric electroacoustic transducer includes a laminated body formed by laminating two or three piezoelectric ceramic layers, main surface electrodes each provided on the top and bottom main surfaces, and an internal electrode provided between any adjacent two piezoelectric ceramic layers. In the piezoelectric electroacoustic transducer, all ceramic layers are polarized in the same direction with respect to the thickness direction, and by applying an alternating voltage across the main surface electrodes and the internal electrode, the laminated body generates a bending vibration in its entirety.
    • 压电电声换能器不需要主表面电极和内部电极之间的互连,并且能够使用简单的连接结构来构造双压电晶片。 压电式电声换能器包括层叠体,其通过层压两个或三个压电陶瓷层,各自设置在顶部和底部主表面上的主表面电极以及设置在任何相邻的两个压电陶瓷层之间的内部电极而形成。 在压电电声换能器中,所有陶瓷层相对于厚度方向在相同的方向上极化,并且通过在主表面电极和内部电极两端施加交流电压,层叠体整体产生弯曲振动。
    • 7. 发明授权
    • Piezoelectric electroacoustic transducer
    • 压电式电声换能器
    • US07141919B1
    • 2006-11-28
    • US10435550
    • 2003-05-12
    • Kazuaki HamadaTetsuo TakeshimaManabu SumitaKeiichi KamiMitsunori Ishimasa
    • Kazuaki HamadaTetsuo TakeshimaManabu SumitaKeiichi KamiMitsunori Ishimasa
    • H04R17/00H01L41/04
    • H04R31/003H04R17/00H04R2307/023
    • A piezoelectric electroacoustic transducer includes a piezoelectric sounding body in which bending vibration is generated by applying an alternating signal between two electrodes, a case housing the piezoelectric sounding body, and a pair of terminals insert-molded in the case. In the piezoelectric electroacoustic transducer, internal connection portions of the pair of terminals are exposed on the inside surface of the side wall portion of the case so as to extend in a direction that is substantially perpendicular relative to the piezoelectric sounding body, and the internal connection portions of the terminals are electrically connected to the electrodes of the piezoelectric sounding body by using conductive adhesive. The internal connection portions of the terminals do not largely extend inside the case and accordingly, the dimensional difference between the case and the piezoelectric sounding body is minimized.
    • 压电式电声换能器包括:压电发声体,其中通过在两个电极之间施加交变信号产生弯曲振动,容纳压电发声体的壳体和嵌入成型在壳体中的一对端子。 在压电电声换能器中,一对端子的内部连接部分暴露在壳体的侧壁部分的内表面上,以便在相对于压电发声体基本上垂直的方向上延伸,并且内部连接 端子的部分通过使用导电粘合剂电连接到压电发声体的电极。 端子的内部连接部分在壳体内部没有大的延伸,因此壳体和压电发声体之间的尺寸差最小化。
    • 8. 发明授权
    • Piezoelectric electroacoustic transducer and manufacturing method of the same
    • US07020295B2
    • 2006-03-28
    • US10192493
    • 2002-07-11
    • Kazuaki HamadaMasayuki Fujino
    • Kazuaki HamadaMasayuki Fujino
    • H04R25/00
    • B06B1/0603
    • A piezoelectric electroacoustic transducer includes a substantially rectangular piezoelectric diaphragm having electrodes and flexurally vibrating in response to application of an alternating signal between the electrodes, a resin case having a supporting member disposed inside sidewalls of the case for supporting the diaphragm, terminals insert-molded in the case so as to have internal connections exposed in the supporting member and external connections exposed on the external surface of the case, a conductive adhesive for electrically connecting the electrodes of the diaphragm to the internal connections of the terminals, an elastic sealant for sealing a gap between the external periphery of the diaphragm and the internal periphery of the case, and a lid plate for closing an opening of the case. The terminals are pressed terminals, which are made by punching a metallic plate so that a flash-producing surface is to be the lower surface, and flashes on both respective side-edges of the internal connections are embedded inside the supporting member of the case so that the top surfaces of the internal connections are flush with the surface of the supporting member, and the external connections of the terminals are bent toward the bottom surface of the case via the side surfaces thereof.
    • 9. 发明申请
    • Communication cable, and communication wire protecting tube
    • 通讯电缆和通讯线保护管
    • US20050098342A1
    • 2005-05-12
    • US10738224
    • 2003-12-18
    • Itaru SakabeHisashi TanjiToshiaki KakiiHiroki IshikawaKazuaki HamadaNobuhiro Akasaka
    • Itaru SakabeHisashi TanjiToshiaki KakiiHiroki IshikawaKazuaki HamadaNobuhiro Akasaka
    • G02B6/44H01B7/17H01B11/00H02G3/04H01B7/18
    • G02B6/4461G02B6/4478H02G3/0481
    • [Problems to be solved]A communication cable and a communication wire protecting tube, which can be easily bent to a predetermined bend radius by a low force but which requires such a higher force for the bend of a smaller diameter that it may be hard to bend. [Means for solving the Problems]The communication cable 10,10A comprises a communication wire 11,11A and an armor 13A including at least two synthetic resin layers, and protects the communication wire 11,11A in a loose state. The communication wire protecting tube comprises at least two synthetic resin layers, and inserts the communication wire 11,11A in a loose state. The most hard resin layer 13a, 13aA of the armor 13,13A has a crosswise or spiral annular groove 14 or cut portion 14A continuous in the longitudinal direction to reach the radially inner face, and the outermost layer of the armor 13,13A is formed of a protective layer 13b,13bA made of a softer resin than the hard resin layer 13a, 13aA. The adjoining edge portions 14a,14aA of the annular groove 14 or the cut portion 14A come, when the communication wire 11,11A is to be bent, into contact with each other so that it may be prevented from being bent to a predetermined or smaller bend radius.
    • [待解决的问题]一种通信电缆和通信线路保护管,其可以通过较小的力容易地弯曲到预定的弯曲半径,但是对于较小直径的弯曲需要较大的力,可能难以 弯曲。 解决问题的手段通信电缆10,10A包括通信线路11,11A和包括至少两个合成树脂层的护甲13A,并且保护通信线路11,11A处于松散状态。 通信线保护管包括至少两个合成树脂层,并且将通信线11,11A插入松散状态。 铠装13,13A的最硬的树脂层13a,13aa具有沿纵向方向连续的横向或螺旋状的环形槽14或切割部分14A,以到达径向内表面,并且装甲13的最外层 13A由比硬质树脂层13a,13aa更柔软的树脂制成的保护层13b,13bA形成。 当连接线11,11A被弯曲时,环形槽14或切割部分14A的邻接边缘部分14a,14a进入相互接触,从而可以防止弯曲 预定或较小的弯曲半径。