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公开(公告)号：US10122469B2
公开(公告)日：2018-11-06
申请号：US15883279
申请日：2018-01-30
申请人： Fujikura Ltd.
发明人： Tatsuo Kubo , Osamu Kikuchi , Takayuki Tanaka
摘要： A connector which serves as an optical transmitter in accordance with an embodiment of the present invention includes: a transmitting circuit configured to convert a data signal into an electric current signal, the data signal being a three-valued; and an LD configured to convert the electric current signal into an optical signal. The transmitting circuit detects, as an IDLE interval, an interval during which the data signal falls within a predetermined range that is between a high level and a low level. The transmitting circuit controls, during the IDLE interval, the electric current signal to be not greater than a threshold electric current of the LD.
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公开(公告)号：US20170222726A1
公开(公告)日：2017-08-03
申请号：US15487764
申请日：2017-04-14
申请人： FUJIKURA LTD.
发明人： Tatsuo Kubo , Osamu Kikuchi , Takayuki Tanaka
IPC分类号： H04B10/564 , H04B10/50 , G02B6/42
CPC分类号： H04B10/564 , G02B6/4292 , H01S5/0427 , H01S5/06213 , H04B10/504 , H04B10/505 , H04B10/5057 , H04B10/541
摘要： A connector which serves as an optical transmitter in accordance with an embodiment of the present invention includes: a transmitting circuit configured to convert a data signal into an electric current signal, the data signal being a three-valued; and an LD configured to convert the electric current signal into an optical signal. The transmitting circuit detects, as an IDLE interval, an interval during which the data signal falls within a predetermined range that is between a high level and a low level. The transmitting circuit controls, during the IDLE interval, the electric current signal to be not greater than a threshold electric current of the LD.
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公开(公告)号：US20180159633A1
公开(公告)日：2018-06-07
申请号：US15883279
申请日：2018-01-30
申请人： Fujikura Ltd.
发明人： Tatsuo Kubo , Osamu Kikuchi , Takayuki Tanaka
IPC分类号： H04B10/564 , H04B10/50 , G02B6/42
CPC分类号： H04B10/564 , G02B6/4292 , H01S5/0427 , H01S5/06213 , H04B10/504 , H04B10/505 , H04B10/5057 , H04B10/541
摘要： A connector which serves as an optical transmitter in accordance with an embodiment of the present invention includes: a transmitting circuit configured to convert a data signal into an electric current signal, the data signal being a three-valued; and an LD configured to convert the electric current signal into an optical signal. The transmitting circuit detects, as an IDLE interval, an interval during which the data signal falls within a predetermined range that is between a high level and a low level. The transmitting circuit controls, during the IDLE interval, the electric current signal to be not greater than a threshold electric current of the LD.
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公开(公告)号：US20230396222A1
公开(公告)日：2023-12-07
申请号：US18102184
申请日：2023-01-27
申请人： Fujikura Ltd.
发明人： Chihiro Kamidaki , Yo Yamaguchi , Tatsuo Kubo
CPC分类号： H03F3/45085 , H03G3/3015 , H03F1/56 , H03G1/0023 , H03F2200/387 , H03F2200/222
摘要： A variable gain amplifier includes a differential amplifier circuit having a pair of input terminals and a pair of output terminals, and a first variable attenuation circuit connected between at least one of the pair of input terminals and the pair of output terminals of the differential amplifier circuit and capable of switching a resistance value on the basis of a control signal which is input from the outside.
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公开(公告)号：US10097278B2
公开(公告)日：2018-10-09
申请号：US15487764
申请日：2017-04-14
申请人： FUJIKURA LTD.
发明人： Tatsuo Kubo , Osamu Kikuchi , Takayuki Tanaka
IPC分类号： H04B10/04 , H04B10/564 , G02B6/42 , H04B10/50
摘要： A connector which serves as an optical transmitter in accordance with an embodiment of the present invention includes: a transmitting circuit configured to convert a data signal into an electric current signal, the data signal being a three-valued; and an LD configured to convert the electric current signal into an optical signal. The transmitting circuit detects, as an IDLE interval, an interval during which the data signal falls within a predetermined range that is between a high level and a low level. The transmitting circuit controls, during the IDLE interval, the electric current signal to be not greater than a threshold electric current of the LD.
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6.发明授权公开(公告)号：US08958445B2
公开(公告)日：2015-02-17
申请号：US13855419
申请日：2013-04-02
申请人： Fujikura Ltd.
发明人： Tatsuo Kubo
CPC分类号： H01S5/0261 , H01S5/0428 , H01S5/06808
摘要： A DC-coupled laser drive circuit (1) includes (i) a voltage drop section (14) provided between a power source and a pre-driver (12) and (ii) a voltage drop amount controlling section (16) for controlling, according to an output of the pre-driver (12), an amount of a voltage drop in the voltage drop section (14).
摘要翻译： DC耦合激光驱动电路（1）包括（i）设置在电源和预驱动器（12）之间的电压降部分（14）和（ii）电压降控制部分（16） 根据所述预驱动器（12）的输出，所述电压降部分（14）中的电压降的量。
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