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    • 6. 发明授权
    • Driving circuit of laser diode and optical transmission device
    • 激光二极管和光传输装置的驱动电路
    • US5675599A
    • 1997-10-07
    • US614029
    • 1996-03-12
    • Hajime AbeAtsushi Takai
    • Hajime AbeAtsushi Takai
    • H01S5/042H01S5/062H01S3/00
    • H01S5/06213H01S5/042H04B10/504H01S5/0427
    • An optical transmission device which is used for a short range optical data link or an optical communication system for subscribers and more particularly requires no automatic optical power control minimizes the turn-on delay time of a laser diode and allows unformatted optical signal transmission by fixed level decision receiving system. By applying a fixed-bias electric current which is not more than the electric threshold current value of the laser diode to the laser diode, the turn-on delay time of the laser diode can be minimized, and the extinction level can be lowered by it, and the fixed level decision receiving system can be used, and the optical receiver circuit can be simplified more.
    • 用于短距离光数据链路或用于用户的光通信系统的光传输设备,更具体地,不需要自动光功率控制,使激光二极管的接通延迟时间最小化,并允许无格式的光信号传输固定等级 决策接收系统。 通过向激光二极管施加不大于激光二极管的电阈值电流值的固定偏置电流,可以使激光二极管的接通延迟时间最小化,并且消光电平可以通过其降低 ,并且可以使用固定电平决定接收系统,并且可以更多地简化光接收器电路。
    • 8. 发明申请
    • Ion exchange apparatus and method of controlling the same
    • 离子交换装置及其控制方法
    • US20070227976A1
    • 2007-10-04
    • US11727100
    • 2007-03-23
    • Hideo FurukawaHajime AbeMakoto HatoHironao KatoKazutaka Baba
    • Hideo FurukawaHajime AbeMakoto HatoHironao KatoKazutaka Baba
    • C02F1/42
    • C02F1/42B01J49/85C02F1/008C02F2209/40C02F2303/16
    • The present invention realizes an ion exchange apparatus capable of enhancing the reliability of regeneration operation. Further, the present invention realizes an ion exchange apparatus capable of simplifying the construction of a salt water supply device. The ion exchange apparatus includes a resin bed housing part (2) in which an ion exchange resin bed (5) is housed; a flow passage control valve (3) for switching between a water service operation and a regeneration operation; and a salt water tank (40) for reserving salt water to be used in regeneration, the flow passage control valve (3) being connected to the salt water tank (40) through a salt water supply line (31), in which the salt water supply line (31) is provided with a flow detecting unit (48) for detecting a flow rate in a direction of supplying salt water and a flow rate in a direction of supplying refill water.
    • 本发明实现了能够提高再生运转的可靠性的离子交换装置。 此外,本发明实现了能够简化盐水供给装置的结构的离子交换装置。 离子交换装置包括容纳有离子交换树脂床(5)的树脂床容纳部(2) 用于在供水操作和再生操作之间切换的流路控制阀(3); 以及用于储存用于再生的盐水的盐水箱(40),所述流路控制阀(3)通过盐水供给管线(31)与所述盐水箱(40)连接,所述盐水供给管路 供水管线(31)设有流量检测单元(48),用于检测在供给盐水的方向上的流量和在再供给水的供给方向上的流量。
    • 10. 发明授权
    • Driving circuit of laser diode and optical transmission device
    • 激光二极管和光传输装置的驱动电路
    • US5870418A
    • 1999-02-09
    • US886254
    • 1997-07-01
    • Hajime AbeAtsushi Takai
    • Hajime AbeAtsushi Takai
    • H01S5/042H01S5/062H01S3/00
    • H01S5/06213H01S5/042H04B10/504H01S5/0427
    • An optical transmission device which is used for a short range optical data link or an optical communication system for subscribers and more particularly requires no automatic optical power control minimizes the turn-on delay time of a laser diode and allows unformatted optical signal transmission by fixed level decision receiving system. By applying a fixed-bias electric current which is not more than the electric threshold current value of the laser diode to the laser diode, the turn-on delay time of the laser diode can be minimized, and the extinction level can be lowered by it, and the fixed level decision receiving system can be used, and the optical receiver circuit can be simplified more.
    • 用于短距离光数据链路或用于用户的光通信系统的光传输设备,更具体地,不需要自动光功率控制,使激光二极管的接通延迟时间最小化,并允许无格式的光信号传输固定等级 决策接收系统。 通过向激光二极管施加不大于激光二极管的电阈值电流值的固定偏置电流,可以使激光二极管的接通延迟时间最小化,并且消光电平可以通过其降低 ,并且可以使用固定电平决定接收系统,并且可以更多地简化光接收器电路。