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    • 51. 发明授权
    • Mobile communication apparatus
    • 移动通信装置
    • US07027771B1
    • 2006-04-11
    • US09522684
    • 2000-03-10
    • Jun SatoNobuhiro Fujimoto
    • Jun SatoNobuhiro Fujimoto
    • H04B7/24G08G1/00
    • H04W48/16H04W84/08H04W84/18
    • Mobile communication apparatus, of small size and low cost, may be installed in vehicles to afford enhanced mobile-to-mobile communications between preceding and succeeding vehicles, even over a great distance therebetween. In the preceding vehicle, a detector detects a carrier transmitted from the succeeding vehicle and a transmission controller uses the carrier, when detected, for transmitting data to the succeeding vehicle. Further, the detector in the preceding vehicle detects, from the carrier transmitted from the succeeding vehicle, whether the distance to the succeeding vehicle is in a range permitting two-way communications therebetween. The transmission controller in the preceding vehicle transmits first information to the succeeding vehicle when the detector does not detect the possibility of two-way communication, and transmits second information to the succeeding vehicle when the detector detects the possibility of two-way communications with the succeeding vehicle.
    • 小型和低成本的移动通信设备可以安装在车辆中,以便在前后车辆之间甚至在它们之间的很远的距离上提供增强的移动到移动通信。 在前一车辆中,检测器检测从后续车辆发送的载波,并且当检测到传输控制器使用载波来发送数据到后续车辆时。 此外,前一车辆的检测器从后续车辆发送的载波中检测到与后续车辆的距离是否在允许其间进行双向通信的范围内。 当检测器没有检测到双向通信的可能性时,前一车辆的变速器控制器将第一信息发送到后续车辆,并且当检测器检测到与后续车辆的双向通信的可能性时,向后续车辆发送第二信息 车辆。
    • 58. 发明授权
    • Surface acoustic wave device and piezoelectric substrate used therefor
    • 表面声波装置及其压电基板
    • US06700300B2
    • 2004-03-02
    • US09968820
    • 2001-10-02
    • Kenji InoueKatsuo SatoHiroki MorikoshiKatsumi KawasakiJun Sato
    • Kenji InoueKatsuo SatoHiroki MorikoshiKatsumi KawasakiJun Sato
    • H01L4108
    • H03H9/02543
    • A compact and wide band surface acoustic wave device for intermediate-frequency is disclosed. A piezoelectric substrate for use in a surface acoustic wave device having high electromechanical coupling factor and low SAW velocity is also disclosed. The surface acoustic wave device is constituted of a piezoelectric substrate 1 and inter-digital electrodes 2, 2 formed on the piezoelectric substrate 1. The piezoelectric substrate 1 has a crystal structure of Ca3Ga2Ge4O14 and is represented by the chemical formula, Ca3TaGa3Si2O14. A cut angle of the piezoelectric substrate 1 cut out of the single crystal and a direction of propagation of surface acoustic waves on the piezoelectric substrate represented in terms of Euler's angles (&phgr;, &thgr;, &psgr;) are found in an area represented by −2.5°≦&phgr;≦2.5°, 30°≦&thgr;≦90°, and −65°≦&psgr;≦65°.
    • 公开了一种用于中频的紧凑且宽带的声表面波装置。 还公开了一种用于具有高机电耦合系数和低SAW速度的表面声波装置中的压电基片。声表面波装置由压电基片1和形成在压电基片1上的数字间电极2,2构成 压电基板1具有Ca 3 Ga 2 Ge 4 O 14的晶体结构,由化学式Ca 3 Ta Ga 3 Si 2 O 14表示。 从欧姆角(phi,θ,psi)表示的压电基板上切出的压电基板1的切割角和压电基板上的表面声波的传播方向在-2.5° <= phi <= 2.5°,30°<=θ<= 90°,-65°<= psi <= 65°。
    • 59. 发明授权
    • Multiple-operation switch
    • 多操作开关
    • US06570107B1
    • 2003-05-27
    • US09676751
    • 2000-10-02
    • Takumi NishimotoKoji OnoJun SatoTetsuya Fukuda
    • Takumi NishimotoKoji OnoJun SatoTetsuya Fukuda
    • H01H1900
    • H01H25/06H01H25/008H01H25/04
    • A multiple operation switch that provides electric signal in accordance with the angle of tilting an operating rod protruding from the front panel of an electronic apparatus. The switch comprises a lower case provided at the recessed bottom with a lower switching portion formed of a movable contact and a first fixed contact point. A movable contact body is provided with a conductive flange that makes contact, when tilted by the operating rod, in part with at least two of the second fixed contact points disposed on the reverse surface of upper case. Which movable contact body is supported at the conductive flange by a holding member pushed upward by a coil spring provided in the lower case so that it is engaged in a tiltable manner with an upper case. The second fixed contact points and the conductive flange constitute an upper switching portion.
    • 多重操作开关,其根据从电子设备的前面板突出的操作杆的倾斜角度提供电信号。 开关包括设置在凹陷底部的下壳体,其具有由可动触头和第一固定触点形成的下开关部分。 可动接触体设置有导电凸缘,该导电凸缘当被操作杆倾斜时部分地与设置在上壳体的背面上的至少两个第二固定接点相接触。 通过设置在下壳体中的螺旋弹簧向上推动的保持构件,可动接触体被支撑在导电凸缘处,使得其与上壳体可倾斜地接合。 第二固定触点和导电凸缘构成上开关部。