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1. 发明授权

US5732096A Control circuit for supplying a driving current to a laser diode 失效
标题翻译：用于向激光二极管提供驱动电流的控制电路
公开(公告)号：US5732096A
公开(公告)日：1998-03-24
申请号：US655813
申请日：1996-05-31
申请人： Kazuhiro Suzuki , Hiroshi Kuzukami , Yuji Miyaki , Akihiko Yasuda , Yoshinori Ohkuma
发明人： Kazuhiro Suzuki , Hiroshi Kuzukami , Yuji Miyaki , Akihiko Yasuda , Yoshinori Ohkuma
IPC分类号： H01S5/068 , H01S5/0683 , H01S3/00
CPC分类号： H01S5/06832
摘要： The control circuit for supplying a driving current to a laser diode makes it possible to keep the laser driving current variable in a wide range. The control circuit includes a laser diode, a photo diode for receiving a part of an optical output emitted from the laser diode and outputting an electrical signal corresponding to a level of the optical output, a first current supplying circuit for supplying a bias current to the laser diode, a first monitor circuit for monitoring a size of a signal driving current supplied by the first current supplying circuit, a second monitor circuit for monitoring a size of the bias current supplied by the second current supplying circuit, a first feed-back loop for controlling the signal driving current supplied from the first current supplying circuit by the output of the first monitor circuit, as a reference of the electric signal outputted from the photo diode corresponding to the level of the optical output emitted from the laser diode, a second feed-back loop for controlling the bias current supplied from the second current supplying circuit by the output of the second monitor circuit, as said reference of the signal outputted from the photo diode corresponding to the level of the optical output emitted form the laser diode; and an adder circuit for adding an offset current of the signal driving current supplied from the first current supplying circuit on the outside of the first feed-back loop.
摘要翻译：用于向激光二极管提供驱动电流的控制电路使得可以将激光驱动电流保持在宽范围内。所述控制电路包括激光二极管，用于接收从所述激光二极管发射的光输出的一部分并输出与所述光输出的电平对应的电信号的光电二极管;第一电流供应电路，激光二极管，用于监测由第一电流供应电路提供的信号驱动电流的大小的第一监视器电路，用于监视由第二电流供应电路提供的偏置电流的大小的第二监视电路，第一反馈回路用于通过第一监视电路的输出来控制从第一电流供应电路提供的信号驱动电流作为从与激光二极管发射的光输出的电平相对应的从光电二极管输出的电信号的参考，第二反馈回路，用于通过第二监视电路的输出来控制从第二电流供应电路提供的偏置电流所述参考从光电二极管输出的信号对应于从激光二极管发射的光输出的电平; 以及加法电路，用于将从第一电流供应电路提供的信号驱动电流的偏移电流加到第一反馈回路的外部。

2. 发明授权

US5625181A Light-receipt system with current bias circuit and pre-amplifier for use in optical digital communication 失效
标题翻译：具有电流偏置电路和前置放大器的光接收系统用于光学数字通信
公开(公告)号：US5625181A
公开(公告)日：1997-04-29
申请号：US288582
申请日：1994-08-10
申请人： Akihiko Yasuda , Setsuo Misaizu , Hisaya Sakamoto , Yuji Miyaki , Norio Nagase , Hiroshi Kuzukami
发明人： Akihiko Yasuda , Setsuo Misaizu , Hisaya Sakamoto , Yuji Miyaki , Norio Nagase , Hiroshi Kuzukami
IPC分类号： H01L31/10 , H03G3/10 , H03G3/20 , H03G3/30 , H04B10/079 , H04B10/2507 , H04B10/40 , H04B10/50 , H04B10/60 , H04B10/67 , H04B10/69 , H04B10/06
CPC分类号： H04B10/6911 , H03G3/3084
摘要： A light receipt system has a bias circuit and a light-receipt element. The bias circuit controls light input power to the light-receipt element to the optimum multiplication factor. The bias circuit of the light-receipt element has a first resistor, a second resistor, and a third resistor. The first resistor and the second resistor are connected in parallel, and the light-receipt element is connected between a connection of the first resistor and the second resistor, and the third resistor. A bypass current path is provided, connected to a junction point between the first resistor and the second resistor.
摘要翻译：光接收系统具有偏置电路和光接收元件。偏置电路将光接收元件的光输入功率控制到最佳乘法因子。光接收元件的偏置电路具有第一电阻器，第二电阻器和第三电阻器。第一电阻器和第二电阻器并联连接，光接收元件连接在第一电阻器和第二电阻器的连接点与第三电阻器之间。提供旁路电流路径，连接到第一电阻器和第二电阻器之间的连接点。

3. 发明授权

US4444156A Water heater 失效
标题翻译：热水器
公开(公告)号：US4444156A
公开(公告)日：1984-04-24
申请号：US448276
申请日：1982-12-09
申请人： Yasutaka Iwasaki , Mitsuru Tanaka , Akihiko Yasuda , Munetaka Kinugasa , Toshihiko Kikuchi , Masao Maruyama
发明人： Yasutaka Iwasaki , Mitsuru Tanaka , Akihiko Yasuda , Munetaka Kinugasa , Toshihiko Kikuchi , Masao Maruyama
IPC分类号： F24H1/14 , F24H8/00 , F22D1/00 , B01D53/34
CPC分类号： F24H8/006 , F24H1/145 , Y02B30/106 , Y10S165/901
摘要： A water heater of the combustion type having a collecting assembly for collecting the drain water resulting from combustion to prevent corrosion of components of the heater by the drain water.
摘要翻译：燃烧式热水器具有收集组件，用于收集由燃烧产生的排水，以防止排水引起的加热器部件腐蚀。

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