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    • 54. 发明申请
    • OPTICAL TRANSMISSION APPARATUS AND FAULT DETECTION METHOD
    • 光传输设备和故障检测方法
    • US20100322619A1
    • 2010-12-23
    • US12815898
    • 2010-06-15
    • Hiroshi IizukaTsukasa Takahashi
    • Hiroshi IizukaTsukasa Takahashi
    • H04B10/08H04B10/04
    • H04B10/0797H04B10/25133
    • An optical transmission apparatus includes a non-reciprocal device including first to second ports, an optical signal input from the first port being provided to the second port, an optical signal input from the second port being provided to the first port, a dispersion compensator that is coupled to the first port of the non-reciprocal device and that conducts given processing to an optical signal input from the first port of the non-reciprocal device to provide the optical signal subjected to the given processing to the second port of the non-reciprocal device, a first monitor, a second monitor, and a fault determination device that compares a value monitored by the first monitor with a value monitored by the second monitor to determine a connection failure at the first and/or second ports of the non-reciprocal device and/or a connection state of the dispersion compensator.
    • 光传输装置包括:包括第一至第二端口的不可逆装置,从第一端口输入的光信号提供给第二端口;从第二端口输入的光信号提供给第一端口;色散补偿器, 耦合到不可逆设备的第一端口,并且对从不可逆设备的第一端口输入的光信号进行给定处理,以将经过给定处理的光信号提供给非可逆设备的第二端口, 互换装置,第一监视器,第二监视器和故障确定装置,其将由第一监视器监视的值与由第二监视器监视的值进行比较,以确定非易失性存储器的第一和/或第二端口处的连接故障, 互补装置和/或色散补偿器的连接状态。
    • 55. 发明申请
    • PORTABLE WIRELESS UNIT
    • 便携式无线单元
    • US20100240423A1
    • 2010-09-23
    • US12302687
    • 2006-05-30
    • Kenji TakagiTsukasa TakahashiYutaka SatohKenya Nagano
    • Kenji TakagiTsukasa TakahashiYutaka SatohKenya Nagano
    • H04W88/00
    • H01Q1/244H01Q1/243H01Q3/24H01Q9/28H01Q9/40H01Q21/28H04B1/3833H04B7/08H04B7/10
    • A purpose of the present invention is to provide a portable wireless unit capable of suppressing a deterioration of antenna performance, which is caused by electromagnetic mutual effects occurred between two antenna elements, and capable of achieving an improving effect of a high diversity gain, and also capable of realizing a designing characteristic and an operative characteristic in a compatible manner. While an upper case (1) and a lower case (2) are coupled to each other by a hinge portion (3), a circuit board (8) is arranged on the lower case (2), and also, a power feeding element (7) and another power feeding element (20) are arranged in such a separation manner that an interval between these power feeding terminals (7) and (20) is longer than, or equal to “λ/20” on the circuit board (8). Also, while a whip antenna (9) is provided on the lower case (2), this whip antenna (9) is connected via the power feeding terminal (7) to the circuit board (8). Also, while a metal frame (13) is provided on the upper case (1), this metal frame (13) is connected via the hinge portion (3) and the power supply terminal (20) to the circuit board (8). Then, a dipole antenna is constituted by the metal frame (12) and a ground pattern of the circuit board (8) in combination with the hinge portion (3). A diversity receiving operation is carried out based upon antenna outputs of this dipole antenna and the whip antenna (9).
    • 本发明的目的是提供一种便携式无线单元,其能够抑制由两个天线元件之间发生的电磁相互作用引起的天线性能的恶化,并且能够实现高分集增益的改善效果,并且还 能够以兼容的方式实现设计特性和操作特性。 虽然通过铰链部分(3)将上壳体(1)和下壳体(2)彼此联接,但是在下壳体(2)上布置有电路板(8),并且馈电元件 (7)和另一个馈电元件(20)以这样的分离方式布置,使得这些馈电端子(7)和(20)之间的间隔在电路板上长于或等于“λ/ 20” 8)。 此外,在下壳体(2)上设置有鞭状天线(9)的情况下,该鞭状天线(9)经由供电端子(7)与电路基板(8)连接。 另外,在金属框架(13)设置在上壳体(1)上的同时,金属框架(13)经由铰链部(3)和电源端子(20)与电路基板(8)连接。 然后,偶极天线由金属框架(12)和与铰链部分(3)组合的电路板(8)的接地图形构成。 基于该偶极天线和鞭状天线(9)的天线输出进行分集接收操作。
    • 59. 发明授权
    • Optical transmission system
    • 光传输系统
    • US07409155B2
    • 2008-08-05
    • US10808606
    • 2004-03-25
    • Tsukasa Takahashi
    • Tsukasa Takahashi
    • H04B10/08
    • H04J14/0275H04B10/0775H04B2210/077H04B2210/078H04B2210/08H04J14/0279H04L7/0008H04L7/0075
    • In an optical transmission system: a first unit generates a first optical supervisory signal being arranged on the shorter-wavelength side of main signals and containing information for determining continuity of an optical transmission line and a second optical supervisory signal arranged on the longer-wavelength side of the main signals and used for supervisory control of optical communication; a second unit generates a wavelength-multiplexed signal by optically multiplexing the main signals and the first and second optical supervisory signals, and transmits the wavelength-multiplexed signal onto the optical transmission line; a third unit receives the wavelength-multiplexed signal, and optically demultiplexes the wavelength-multiplexed signal into the main signals and the first and second optical supervisory signals; and a fourth unit determines whether or not the optical transmission line is optically continuous, based on the first optical supervisory signal, and performs supervisory control of optical communication based on the second optical supervisory signal.
    • 在光传输系统中:第一单元产生布置在主信号的较短波长侧的第一光监控信号,并包含用于确定光传输线的连续性的信息和布置在较长波长侧的第二光监控信号 的主要信号,用于光通信的监控; 第二单元通过对主信号和第一和第二光监控信号进行光学多路复用产生波长复用信号,并将波长多路复用信号发送到光传输线上; 第三单元接收波分复用信号,并且将波分复用信号光解复用为主信号和第一和第二光监控信号; 并且第四单元基于第一光监控信号确定光传输线是否是光学连续的,并且基于第二光监控信号执行光通信的监控。