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    • 71. 发明授权
    • System for measuring optical pulses having an optical signal divider with delay propagation
    • 用于测量具有延迟传播的光信号分频器的光脉冲的系统
    • US06747269B2
    • 2004-06-08
    • US10217320
    • 2002-08-12
    • Satoshi Watanabe
    • Satoshi Watanabe
    • G01J104
    • G01J11/00
    • Systems and methods of measuring optical pulses are described. In one aspect, an optical pulse measurement system includes an optical signal divider and an optical signal conversion system. The optical signal divider has an optical input for receiving an input optical signal, multiple optical outputs, and a set of multiple optical channels. The optical channels are coupled between the optical input and respective optical outputs and are operable to delay propagation of optical signals, which are divided from the input optical signal, from the optical input to respective optical outputs by different respective amounts of time. The optical signal conversion system is coupled to the optical signal divider optical outputs and is operable to convert temporal intensity distributions of light received from the optical signal divider optical outputs into respective spatial intensity distributions in parallel.
    • 描述了测量光脉冲的系统和方法。 一方面,光脉冲测量系统包括光信号分配器和光信号转换系统。 光信号分配器具有用于接收输入光信号,多个光输出和一组多个光信道的光输入。 光信道耦合在光输入和相应的光输出之间,并且可操作以通过不同的相应时间量将从输入光信号分离的光信号的延迟从光输入延迟到相应的光输出。 光信号转换系统耦合到光信号分配器光输出,并且可操作以将从光信号分配器光输出接收的光的时间强度分布转换成相应的空间强度分布并行。
    • 77. 发明授权
    • Circuit board electrical connector
    • 电路板电连接器
    • US06503093B1
    • 2003-01-07
    • US08896055
    • 1997-07-17
    • Tsuyoshi SakataSatoshi Watanabe
    • Tsuyoshi SakataSatoshi Watanabe
    • H01R1362
    • H01R12/7005H01R12/721
    • A circuit board electrical connector includes a connector housing (20) having a front edge holding section (21) with a receiving groove (23) for receiving a leading edge of a circuit board (1) having a plurality of contact pads (2) on the leading edge and an aperture or notch (3) therein, and a pair of guiding sections (22) extending upward from opposite ends of the front edge holding section for guiding the circuit board; a plurality of contact elements (25) provided in the receiving groove for contact with the contact pads of the circuit board; a pair of insertion slots (28) provided in the guiding sections and having a width slightly greater than a thickness of the circuit board; at least one pair of pressure portions (29A) provided on opposed faces of one of the insertion slots such that a distance between the pressure portions is slightly less than the thickness of the circuit board so as to hold the circuit board between them; and at least one pair of engaging projections (29B) provided on the pressure portions for engagement with the notch or aperture of the circuit board when the circuit board is inserted in the receiving groove.
    • 电路板电连接器包括具有前边缘保持部分(21)的连接器壳体(20),所述前边缘保持部分具有用于接收具有多个接触焊盘(2)的电路板(1)的前缘的接收槽(23) 前缘和其中的孔或凹口(3)和从前边缘保持部分的相对端向上延伸的一对引导部分(22),用于引导电路板; 多个接触元件(25),设置在所述接收槽中,用于与所述电路板的接触焊盘接触; 一对插入槽(28),设置在所述引导部分中,并且具有略大于所述电路板厚度的宽度; 至少一对压力部分(29A)设置在一个插入槽的相对面上,使得压力部分之间的距离略小于电路板的厚度,以便将电路板保持在它们之间; 以及设置在压力部分上的至少一对接合突起(29B),用于当电路板插入接收槽时与电路板的凹口或孔口接合。
    • 78. 发明授权
    • Wavelength monitor using hybrid approach
    • 使用混合方式的波长监视器
    • US06486984B1
    • 2002-11-26
    • US09326338
    • 1999-06-07
    • Douglas M. BaneyNorihide YamadaSatoshi WatanabeShigeru NakagawaYoshikatsu Ichimura
    • Douglas M. BaneyNorihide YamadaSatoshi WatanabeShigeru NakagawaYoshikatsu Ichimura
    • H04J1402
    • H04J14/02H04B10/00
    • A method and a system for monitoring specific channels in a WDM system involve splitting a WDM signal into multiple parallel signals, filtering the parallel signals with corresponding individually tunable filters in order to pass specific channels to each filter, and then detecting the presence of passed channels with dedicated detectors that correspond to the tunable filters. In a preferred embodiment, the initial WDM signal is demultiplexed by wavelength into multiple different transmission groups and each filter can be individually tuned over a channel range that corresponds to the range of channels within the transmission group that is directed to the filter. The preferred individually tunable filters are vertical cavity filters formed utilizing semiconductor wafer processing techniques, and the preferred photodetectors are simple low cost single-cell photodetectors.
    • 用于监测WDM系统中的特定信道的方法和系统包括将WDM信号分割为多个并行信号,用相应的单独可调谐滤波器对并行信号进行滤波,以便将特定信道传送到每个滤波器,然后检测通过的信道的存在 具有与可调滤波器对应的专用检测器。 在优选实施例中,初始WDM信号被波长解复用为多个不同的传输组,并且每个滤波器可以在对应于指向滤波器的传输组内的信道范围的信道范围上单独调谐。 优选的单独可调滤波器是利用半导体晶片处理技术形成的垂直腔滤波器,并且优选的光电检测器是简单的低成本单单元光电探测器。
    • 79. 发明授权
    • Ultrasonic motor and electronic apparatus having ultrasonic motor
    • 超声波电机和具有超声波电机的电子设备
    • US06218769B1
    • 2001-04-17
    • US09369089
    • 1999-08-05
    • Akihiro IinoMasao KasugaSatoshi Watanabe
    • Akihiro IinoMasao KasugaSatoshi Watanabe
    • H01L4104
    • H01L41/0913H02N2/004H02N2/026H02N2/103
    • An ultrasonic motor comprises first piezoelectric oscillators alternately arranged with first polarized regions having a first direction of polarization and second polarized regions having a second direction of polarization opposite to the first direction of polarization. The first piezoelectric oscillators undergo bending vibration in a first direction upon input of drive signals having a same phase to the first polarized regions and the second polarized regions to thereby excite the first and second polarized regions. Second piezoelectric oscillators are laminated to the first piezoelectric oscillators in a second direction generally perpendicular to the first direction for undergoing elongation and contraction vibration in the first direction. When a driving signal is applied to the first and second piezoelectric oscillators a drive force is generated by a combination of the bending vibration of the first piezoelectric oscillators and the elongation and contraction vibration of the second piezoelectric oscillators.
    • 超声波马达包括交替布置的第一压电振荡器,其具有具有第一偏振方向的第一偏振区域和具有与第一偏振方向相反的第二偏振方向的第二偏振区域。 第一压电振荡器在向第一偏振区域和第二偏振区域输入具有相同相位的驱动信号时,在第一方向上经历弯曲振动,从而激发第一和第二偏振区域。 第二压电振荡器在大致垂直于第一方向的第二方向上层压到第一压电振荡器,以在第一方向上进行伸长和收缩振动。 当驱动信号施加到第一和第二压电振荡器时,通过第一压电振荡器的弯曲振动和第二压电振荡器的伸长和收缩振动的组合产生驱动力。