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1. 发明授权

US06181454B2 Adaptive threshold controlled decision circuit immune to ringing components of digital signals 失效
标题翻译：自适应阈值控制决策电路免受数字信号振铃分量的影响
公开(公告)号：US06181454B2
公开(公告)日：2001-01-30
申请号：US09064505
申请日：1998-04-23
申请人： Takeshi Nagahori , Ichiro Hatakeyama , Kazunori Miyoshi
发明人： Takeshi Nagahori , Ichiro Hatakeyama , Kazunori Miyoshi
IPC分类号： H04B1006
CPC分类号： H03K5/082 , H04B10/695
摘要： In an optical receiver, a photodiode converts an optical digital input signal to an electrical signal which is fed into a differential amplifier to produce a pair of true and complementary output signals. The true output signal is received by a peak detector and the output of this peak detector is summed in a first adder with the complementary output of the differential amplifier. The true output of the amplifier is summed in a second adder with a predetermined constant voltage. Difference between the output signals of the first and second adders is detected and compared with a decision threshold to produce an output signal at one of two logical levels depending on whether the difference is higher or lower than the decision threshold. Preferably, a second peak detector having a substantially similar operating characteristic to that of the first peak detector is connected between the source of the predetermined constant voltage and the second adder.
摘要翻译：在光接收器中，光电二极管将光数字输入信号转换为馈送到差分放大器中的电信号，以产生一对真和互补的输出信号。真正的输出信号由峰值检测器接收，该峰值检测器的输出与差分放大器的互补输出的第一加法器相加。放大器的真实输出在具有预定恒定电压的第二加法器中相加。检测第一和第二加法器的输出信号之间的差异，并将其与判定阈值进行比较，以根据该差异是高于还是低于判定阈值来产生两个逻辑电平之一的输出信号。优选地，具有与第一峰值检测器相似的工作特性的第二峰值检测器连接在预定恒定电压源和第二加法器之间。

2. 发明授权

US06538790B1 Optical receiver array 有权
标题翻译：光接收器阵列
公开(公告)号：US06538790B1
公开(公告)日：2003-03-25
申请号：US09338027
申请日：1999-06-22
申请人： Ichiro Hatakeyama , Takeshi Nagahori , Kazunori Miyoshi
发明人： Ichiro Hatakeyama , Takeshi Nagahori , Kazunori Miyoshi
IPC分类号： H04B1006
CPC分类号： H04B10/85 , H04B10/69
摘要： An optical receiver array includes a plurality of light-receiving elements, a plurality of amplifiers, and a plurality of low-pass filters. The light-receiving elements convert optical signals of a plurality of channels into electrical signals, respectively. The amplifiers amplify the electrical signals output from the light-receiving elements and output the electrical signals. Each amplifier has positive and negative power supply terminals to which power is supplied. Each low-pass filter is connected between the positive power supply terminal of a corresponding amplifier and a first external power supply terminal or between the negative power supply terminal of a corresponding amplifier and a second external power supply terminal. Each light-receiving element is connected between the positive power supply terminal and an input terminal of a corresponding amplifier or between the input terminal and the negative power supply terminal of a corresponding amplifier.
摘要翻译：光接收器阵列包括多个光接收元件，多个放大器和多个低通滤波器。光接收元件分别将多个通道的光信号转换为电信号。放大器放大从光接收元件输出的电信号并输出电信号。每个放大器都有正向和反向供电的电源端子。每个低通滤波器连接在相应的放大器的正电源端子和第一外部电源端子之间或者在相应的放大器的负电源端子和第二外部电源端子之间。每个光接收元件连接在正电源端子和对应放大器的输入端子之间或相应放大器的输入端子和负电源端子之间。

3. 发明授权

US5798664A Offset cancelling amplifier circuit having Miller integrator as offset detector 失效
标题翻译：具有Miller积分器作为偏移检测器的偏移消除放大器电路
公开(公告)号：US5798664A
公开(公告)日：1998-08-25
申请号：US627357
申请日：1996-04-05
申请人： Takeshi Nagahori , Ichiro Hatakeyama , Soichiro Araki , Kazunori Miyoshi
发明人： Takeshi Nagahori , Ichiro Hatakeyama , Soichiro Araki , Kazunori Miyoshi
IPC分类号： H03F3/08 , H03F3/34 , H03F3/347 , H03F3/45 , H04B10/079 , H04B10/2507 , H04B10/40 , H04B10/50 , H04B10/60 , H04B10/69 , H03L5/00
CPC分类号： H03F3/45941 , H03F3/087 , H03F3/45973 , H03F2203/45511 , H03F2203/45526
摘要： In an optical receiver, an offset cancelling amplifier comprises a limiting amplifier for amplifying an input signal while preventing amplified amplitude from exceeding a predetermined level to provide an output signal, an offset detector for detecting an offset in the output signal to produce a detection signal representative of the offset amount detected, and an offset controller coupled in the input circuit of the limiting amplifier and the offset detector for controlling an input voltage of the limiting amplifier in response to the detection signal to reduce the offset in the output signal. In order to widen the dynamic range and lower the low-frequency cutoff of the offset cancelling amplifier, the offset detector comprises a Miller integrator.
摘要翻译：在光接收机中，偏移消除放大器包括用于放大输入信号的限幅放大器，同时防止放大幅度超过预定电平以提供输出信号;偏移检测器，用于检测输出信号中的偏移量以产生检测信号代表以及偏移控制器，其耦合在限幅放大器和偏移检测器的输入电路中，用于响应于检测信号控制限幅放大器的输入电压，以减小输出信号中的偏移。为了扩大动态范围并降低偏移消除放大器的低频截止，偏移检测器包括米勒积分器。

4. 发明授权

US5793256A Integrated circuit preamplifier for an optical receiver 失效
标题翻译：用于光接收机的集成电路前置放大器
公开(公告)号：US5793256A
公开(公告)日：1998-08-11
申请号：US627356
申请日：1996-04-05
申请人： Takeshi Nagahori , Ichiro Hatakeyama , Soichiro Araki , Kazunori Miyoshi
发明人： Takeshi Nagahori , Ichiro Hatakeyama , Soichiro Araki , Kazunori Miyoshi
IPC分类号： H03F3/08 , H03F3/343 , H04B10/2507 , H04B10/40 , H04B10/50 , H04B10/60 , H04B10/69 , H03F3/04
CPC分类号： H03F3/08 , H03F3/3432
摘要： In a preamplifier for amplifying an input signal supplied to an input terminal to supply an amplified output signal and a reference output signal to an output terminal and a reference output terminal, respectively, a reference level circuit produces a reference level. An amplifier is connected to the reference level circuit and has a predetermined structure. The amplifier amplifies the input signal into the amplified output signal with reference to the reference level to supply the amplified output signal to the output terminal. A dummy circuit is connected to the reference level circuit and has a structure which is identical with the predetermined structure. The dummy circuit responds to the reference level to produce the reference output signal related to the amplified output signal.
摘要翻译：在用于放大提供给输入端子的输入信号的前置放大器中，分别向输出端子和参考输出端子提供放大的输出信号和参考输出信号，参考电平电路产生参考电平。放大器连接到参考电平电路并具有预定的结构。放大器将参考电平将输入信号放大到放大的输出信号，以将放大的输出信号提供给输出端。虚设电路连接到基准电平电路，具有与预定结构相同的结构。虚拟电路响应参考电平以产生与放大的输出信号相关的参考输出信号。

5. 发明授权

US6081362A Optical receiver capable of responding to both burst and continuous signals 失效
标题翻译：能够响应脉冲串和连续信号的光接收机
公开(公告)号：US6081362A
公开(公告)日：2000-06-27
申请号：US951603
申请日：1997-10-17
申请人： Ichiro Hatakeyama , Takeshi Nagahori
发明人： Ichiro Hatakeyama , Takeshi Nagahori
IPC分类号： H04B10/40 , H04B3/10 , H04B10/07 , H04B10/50 , H04B10/60 , H04B10/69 , H04B10/06 , H03L5/00 , H04B10/00 , H04L25/06
CPC分类号： H04B10/6933
摘要： An optical receiver can operate in response to an input optical signal to produce an output electrical signal. The optical receiver comprises a photo diode (340) for transducing the input optical signal into an electrical signal, a plurality of limit amplifier circuits (310-1, 310-2, . . . , and 310-n) which are connected in series which are connected in series to one another and which have offset compensation functions determined by controllable offset compensation time constants, respectively. The plurality of limit amplifier circuits amplify the electrical signal to produce an amplified and controlled electrical signal in dependency upon the offset compensation time constants controlled. The optical receiver further comprises adjusting circuits (320-1, 320-2, . . . , and 320-n) connected to the limit amplifier circuits for adjusting at least one of the offset compensation time constants to make the limit amplifier circuits produce the amplified and controlled electrical signal and an output terminal OUT for producing the amplified and controlled electrical signal as the output electrical signal.
摘要翻译：光接收器可以响应于输入光信号而工作以产生输出电信号。光接收器包括用于将输入光信号转换成电信号的光电二极管（340），串联连接的多个极限放大器电路（310-1,310-2，...，310-n）它们彼此串联连接，并且分别具有由可控偏移补偿时间常数确定的偏移补偿功能。多个极限放大器电路根据所控制的偏移补偿时间常数放大电信号以产生放大和受控的电信号。光接收器还包括连接到极限放大器电路的调整电路（320-1,320-2 ...和320-n），用于调整偏移补偿时间常数中的至少一个，以使极限放大器电路产生放大和控制的电信号以及用于产生放大和控制的电信号作为输出电信号的输出端OUT。

6. 发明授权

US6018407A Optical receiving circuit 失效
标题翻译：光接收电路
公开(公告)号：US6018407A
公开(公告)日：2000-01-25
申请号：US859205
申请日：1997-05-20
申请人： Ichiro Hatakeyama , Takeshi Nagahori
发明人： Ichiro Hatakeyama , Takeshi Nagahori
IPC分类号： H03F3/34 , H03F3/08 , H04B10/07 , H04B10/2507 , H04B10/40 , H04B10/50 , H04B10/60 , H04B10/67 , H04B10/69 , H04B10/00
CPC分类号： H04B10/6933
摘要： An optical receiving circuit comprising a plurality of amplifying circuits successively connected in a multiple stage form, each of the plurality of amplifying circuits having an offset compensating function. The optical receiving circuit includes offset compensating circuits respectively arranged in the plurality of amplifying circuits. Time constants of the offset compensating circuits are set in such a manner that the time constant of an offset compensating circuit arranged at one stage is smaller than that of an offset compensating circuit arranged at the previous stage.
摘要翻译：一种光接收电路，包括以多级形式连续连接的多个放大电路，所述多个放大电路中的每一个具有偏移补偿功能。光接收电路包括分别布置在多个放大电路中的偏移补偿电路。偏移补偿电路的时间常数被设定为使得布置在一级的偏移补偿电路的时间常数小于在前一级布置的偏移补偿电路的时间常数。

7. 发明授权

US5525929A Transimpedance amplifier circuit with feedback and load resistor variable circuits 失效
标题翻译：具有反馈和负载电阻可变电路的互阻放大器电路
公开(公告)号：US5525929A
公开(公告)日：1996-06-11
申请号：US343346
申请日：1994-11-22
申请人： Takeshi Nagahori , Ichiro Hatakeyama
发明人： Takeshi Nagahori , Ichiro Hatakeyama
IPC分类号： H03F1/56 , H03F3/08 , H03F3/34 , H04B10/2507 , H04B10/40 , H04B10/50 , H04B10/60 , H04B10/69 , H03F1/34 , H03G3/30
CPC分类号： H03F3/08
摘要： A transimpedance amplifier circuit for converting an input current to an output voltage includes a feedback resistor variable circuit which is connected in parallel to a feedback resistor and a load resistor variable circuit which is connected to a collector of an amplifying transistor. The feedback resistor variable circuit includes a first resistor and a first P-N junction diode connected in series. After the first P-N junction diode turns on in accordance with the increase in the input current, the transimpedance is decreased. As a result, a wide input dynamic range can be achieved. The load resistor variable circuit includes a reference voltage source and a series circuit of a second P-N junction diode and a second resistor. After the second P-N junction diode turns on in accordance with the increase in the input current, an effective load resistance value of the amplifying transistor is decreased, whereby the gain of the amplification transistor is decreased. The transimpedance amplifier circuit has an increased input dynamic range, a sufficient phase margin while low noise characteristics are maintained. Further, because the transimpedance amplifier circuit adopts a P-N junction diode, it is less susceptible to the influence of variations in characteristics of the elements.
摘要翻译：用于将输入电流转换为输出电压的跨阻放大器电路包括并联连接到反馈电阻器的反馈电阻器可变电路和连接到放大晶体管的集电极的负载电阻器可变电路。反馈电阻器可变电路包括串联连接的第一电阻器和第一P-N结二极管。在第一个P-N结二极管根据输入电流的增加导通后，跨导阻抗减小。结果，可以实现宽的输入动态范围。负载电阻可变电路包括参考电压源和第二P-N结二极管和第二电阻器的串联电路。在根据输入电流的增加使第二P-N结二极管导通之后，放大晶体管的有效负载电阻值降低，从而降低放大晶体管的增益。跨阻放大器电路具有增加的输入动态范围，具有足够的相位裕度，同时保持低噪声特性。此外，由于跨阻放大器电路采用P-N结二极管，所以不易受元件特性变化的影响。

8. 发明授权

US07333683B2 Structure and method for mounting LSI package onto photoelectric wiring board, information processing apparatus, optical interface, and photoelectric wiring board 失效
标题翻译：将LSI封装安装到光电布线板，信息处理设备，光接口和光电布线板上的结构和方法
公开(公告)号：US07333683B2
公开(公告)日：2008-02-19
申请号：US11245334
申请日：2005-10-07
申请人： Junichi Sasaki , Ichiro Hatakeyama , Kazunori Miyoshi , Hikaru Kouta , Kaichiro Nakano , Mikio Oda , Hisaya Takahashi , Mitsuru Kurihara
发明人： Junichi Sasaki , Ichiro Hatakeyama , Kazunori Miyoshi , Hikaru Kouta , Kaichiro Nakano , Mikio Oda , Hisaya Takahashi , Mitsuru Kurihara
IPC分类号： G02B6/00
CPC分类号： H01L23/48 , G02B6/4214 , G02B6/4292 , G02B6/43 , H01L24/81 , H01L27/1443 , H01L31/0203 , H01L31/0232 , H01L2224/05001 , H01L2224/05023 , H01L2224/16 , H01L2224/8121 , H01L2224/81815 , H01L2924/00014 , H01L2924/01078 , H01L2924/01079 , H01L2924/09701 , H01L2924/12043 , H01S5/02248 , H01S5/02284 , H01S5/02292 , H05K1/0274 , H01L2924/00 , H01L2224/05599 , H01L2224/05099
摘要： An LSI package having an optical interface is mounted on a surface of a photoelectric wiring board. The photoelectric wiring board and the optical interface are optically connected with sufficient precision. A wiring board side guide member including socket pins and guide pins is soldered and fixed onto the photoelectric wiring board including an optical transmission line, a guide pin, and a mirror. An optical interface side guide member having a fitting hole is glued to the optical interface. The optical interface is mounted on an interposer of the LSI package. The guide pin of the photoelectric wiring board is fitted into the fitting hole formed through the interposer. The guide pin of the guide member is fitted into the fitting hole of the guide member. As a result, position alignment between the optical interface and the photoelectric wiring board is conducted with high precision.
摘要翻译：具有光学接口的LSI封装安装在光电布线板的表面上。光电布线板和光接口以足够的精度光学连接。包括插座销和引导销的布线板侧引导构件焊接并固定在包括光传输线，引导销和反射镜的光电布线板上。具有嵌合孔的光学接口侧引导构件粘合到光学接口。光学接口安装在LSI封装的插入器上。光电布线板的引导销装配到通过插入件形成的嵌合孔中。引导构件的引导销装配到引导构件的装配孔中。结果，高精度地进行光接口和光电布线板之间的位置对准。

9. 发明授权

US07561762B2 Semiconductor device having optical signal input-output mechanism 有权
标题翻译：具有光信号输入输出机构的半导体装置
公开(公告)号：US07561762B2
公开(公告)日：2009-07-14
申请号：US11575482
申请日：2005-09-20
申请人： Kazunori Miyoshi , Kazuhiko Kurata , Takanori Shimizu , Ichiro Hatakeyama , Junichi Sasaki
发明人： Kazunori Miyoshi , Kazuhiko Kurata , Takanori Shimizu , Ichiro Hatakeyama , Junichi Sasaki
IPC分类号： G02B6/12 , G02B6/26 , G02B6/42
CPC分类号： G02B6/42 , G02B6/4214 , G02B6/4232 , H05K1/141 , H05K1/147 , H05K1/189
摘要： A semiconductor device has printed wiring board (11) where electric wiring (18) connected to LSI chip (17) and to planar optical element (21) is formed, and where optical waveguide (25) which transfers light inputted into planar optical element (21) and/or light outputted from planar optical element (21) is fixed. Planar optical element (21) is mounted in one end of small substrate (13), and another end of small substrate (13) is connected to printed wiring board (11) by solder bump (26). One end of small substrate (13) where planar optical element (21) is mounted is fixed to printed wiring board (11) by a fixing mechanism. Small substrate (13) has flexible section (15), which is easily deformable compared with other portions of printed wiring board (11) and small substrate (13), in at least a partial region between one end where planar optical element (21) is mounted and another end electrically connected to printed wiring board (11).
摘要翻译：半导体装置具有印刷电路板（11），其中形成连接到LSI芯片（17）和平面光学元件（21）的电线（18），并且其中传输输入到平面光学元件的光的光波导（25） 21）和/或从平面光学元件（21）输出的光是固定的。平面光学元件（21）安装在小基板（13）的一端，小基板（13）的另一端通过焊料凸块（26）与印刷电路板（11）连接。安装平面光学元件（21）的小基板（13）的一端通过固定机构固定到印刷电路板（11）。小基板（13）具有柔性部分（15），其与印刷电路板（11）和小基板（13）的其它部分相比容易变形，在平面光学元件（21）的一端之间的至少一部分区域中，并且另一端电连接到印刷线路板（11）。

10. 发明授权

US07473038B2 Optical connector for coupling an optical fiber to a circuit board 有权
标题翻译：用于将光纤耦合到电路板的光学连接器
公开(公告)号：US07473038B2
公开(公告)日：2009-01-06
申请号：US11437646
申请日：2006-05-22
申请人： Kunihiko Fujiwara , Akito Nishimura , Kenji Sasaki , Yukio Hayashi , Ichiro Hatakeyama , Youichi Hashimoto , Junichi Sasaki , Ryosuke Kuribayashi , Kazunori Miyoshi , Kazuhiko Kurata
发明人： Kunihiko Fujiwara , Akito Nishimura , Kenji Sasaki , Yukio Hayashi , Ichiro Hatakeyama , Youichi Hashimoto , Junichi Sasaki , Ryosuke Kuribayashi , Kazunori Miyoshi , Kazuhiko Kurata
IPC分类号： G02B6/36
CPC分类号： G02B6/4292 , G02B6/3885 , G02B6/3897 , G02B6/4214 , G02B6/4249
摘要： An optical connector according to the present invention including a connector body mounted on an optical module mounted on a circuit board, and a connector fixing member for pressing the connector body against the optical module. The connector fixing member can be engaged/disengaged with/from the circuit board, and thus the connector body can be attached/detached to/from the optical module.
摘要翻译：根据本发明的光连接器，包括安装在安装在电路板上的光学模块上的连接器主体和用于将连接器主体压靠在光学模块上的连接器固定构件。连接器固定构件可以与电路板接合/脱开，从而可以将连接器主体与光学模块连接/分离。

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