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21. 发明授权

US07309853B2 Method for controlling a bias voltage applied to an avalanche photodiode 有权
标题翻译：用于控制施加到雪崩光电二极管的偏置电压的方法
公开(公告)号：US07309853B2
公开(公告)日：2007-12-18
申请号：US11305347
申请日：2005-12-19
申请人： Kenichiro Uchida , Moriyasu Ichino
发明人： Kenichiro Uchida , Moriyasu Ichino
IPC分类号： G01J1/44 , H01J40/14 , H03F3/08
CPC分类号： H04B10/66
摘要： The invention discloses an optical receiver that prevents the instability of the bias voltage to the avalanche photodiode (APD) and facilitates the recovery of the bias voltage from the safety value. The optical receiver comprises the APD, the DC-DC converter to supply the bias voltage to the APD, the current detector to detect the photo current generated by the APD, and the controller to set the bias voltage. The controller, evaluating the optical input power based on the output voltage of the DC-DC converter and the monitored current, sets the output voltage based on the change of the optical input power.
摘要翻译：本发明公开了一种光接收器，其防止偏置电压对雪崩光电二极管（APD）的不稳定性，并且有助于从安全值恢复偏置电压。光接收器包括APD，DC-DC转换器，用于向APD提供偏置电压，电流检测器检测由APD产生的光电流，并且控制器设置偏置电压。控制器基于DC-DC转换器的输出电压和监视电流来评估光输入功率，基于光输入功率的变化来设置输出电压。

22. 发明授权

US07214924B2 Light-receiving method of an avalanche photodiode and a bias control circuit of the same 有权
标题翻译：雪崩光电二极管的光接收方法及其偏压控制电路
公开(公告)号：US07214924B2
公开(公告)日：2007-05-08
申请号：US11488077
申请日：2006-07-18
申请人： Moriyasu Ichino
发明人： Moriyasu Ichino
IPC分类号： H01J40/14
CPC分类号： H01L31/107 , H01L31/02027
摘要： The present invention provides a method to maintain a multiplication factor of an avalanche photodiode independent on temperatures without additional devices. The light-receiving apparatus of the invention includes an avalanche photodiode (APD), a dividing circuit, and a bias supplying circuit. The APD has a first region, where a significant multiplication factor appears, and a second region without any multiplication factor. The dividing circuit extracts a second signal.
摘要翻译：本发明提供一种在没有附加装置的情况下保持雪崩光电二极管的倍增因子独立于温度的方法。本发明的光接收装置包括雪崩光电二极管（APD），分压电路和偏压供给电路。 APD具有出现显着倍增因子的第一区域和没有任何乘法因子的第二区域。分频电路提取第二信号。

23. 发明申请

US20050248329A1 Current voltage converter circuit 有权
标题翻译：电流电压转换电路
公开(公告)号：US20050248329A1
公开(公告)日：2005-11-10
申请号：US11118347
申请日：2005-05-02
申请人： Yukio Sato , Moriyasu Ichino
发明人： Yukio Sato , Moriyasu Ichino
IPC分类号： G11B7/125 , H01S3/13 , H02M3/24 , H03F3/08
CPC分类号： H03F3/08 , G11B7/126 , H03F3/343 , H03G1/0088 , H03G3/3084
摘要： A current voltage converter circuit includes a light receiving element which receives a light output from a laser and generates a light current according to the light output, a current distributor circuit which distributes the light current from the light receiving element, the current distributor circuit being configured of a current mirror circuit which includes a transistor pair and a first operating amplifier. The current voltage converter circuit further includes a voltage converter circuit which converts a current distributed by the current distributor circuit into a voltage, the voltage converter circuit including a second operating amplifier.
摘要翻译：电流电压转换器电路包括接收来自激光器的光输出并根据光输出产生光电流的光接收元件，分配来自光接收元件的光电流的分流器电路，配置电流分配器电路包括晶体管对和第一运算放大器的电流镜电路。当前的电压转换器电路还包括电压转换器电路，其将由分配器电路分配的电流转换成电压，该电压转换器电路包括第二运算放大器。

24. 发明授权

US06885684B2 Laser control circuit and laser module 失效
标题翻译：激光控制电路和激光模块
公开(公告)号：US06885684B2
公开(公告)日：2005-04-26
申请号：US10420969
申请日：2003-04-23
申请人： Moriyasu Ichino
发明人： Moriyasu Ichino
IPC分类号： H01S5/0687 , H01S5/042 , H01S5/06 , H01S5/0683 , H01S3/00
CPC分类号： H01S5/042 , H01S5/0617 , H01S5/0683 , H01S5/0687
摘要： A laser control circuit comprises a temperature control circuit and a data processing circuit. The temperature control circuit adjusts the temperature of a laser diode by controlling a temperature regulator. The data processing circuit receives the output of a wavelength monitor. The data processing circuit first adjusts the, temperature of the laser diode to a temperature value previously associated with the target wavelength. Then the data processing circuit finely adjusts the temperature of the laser diode according to the output of the wavelength monitor. Because rough adjustment has been carried out, it is not necessary to change the wavelength significantly according to the output of the wavelength monitor. Therefore, the periodic wavelength dependence of the output of the wavelength monitor does not decrease the accuracy of the control.
摘要翻译：激光控制电路包括温度控制电路和数据处理电路。温度控制电路通过控制温度调节器来调节激光二极管的温度。数据处理电路接收波长监视器的输出。数据处理电路首先将激光二极管的温度调节到与目标波长预先相关联的温度值。然后数据处理电路根据波长监视器的输出精细调节激光二极管的温度。由于进行粗调，所以不需要根据波长监视器的输出显着地改变波长。因此，波长监视器的输出的周期性波长依赖性不会降低控制的精度。

25. 发明授权

US08472488B2 Algorithm to drive semiconductor laser diode 有权
标题翻译：驱动半导体激光二极管的算法
公开(公告)号：US08472488B2
公开(公告)日：2013-06-25
申请号：US13528702
申请日：2012-06-20
申请人： Moriyasu Ichino , Tadashi Sakai
发明人： Moriyasu Ichino , Tadashi Sakai
IPC分类号： H01S3/10 , H01S3/13 , H01S3/00
CPC分类号： H01S5/06804 , H01S5/0427 , H01S5/0617 , H01S5/06832
摘要： An algorithm to drive a semiconductor laser diode (LD) is disclosed. The algorithm assumes that the modulation current to keep the extinction ratio in constant has temperature dependence represented by an exponential function under the average output power of the LD is kept constant by an auto-power-control (APC). When a tracking error exists and the approximation by an exponential function is turned out in failure, the algorithm adds a correction to the exponential function determined by a difference between a practically measured modulation current and another modulation current calculated from a value determined for a bared LD.
摘要翻译：公开了一种驱动半导体激光二极管（LD）的算法。该算法假设通过自动功率控制（APC）将LD的平均输出功率下的保持消光比的调制电流保持恒定，具有由指数函数表示的温度依赖性。当存在跟踪误差并且通过指数函数的近似被证明为失败时，该算法对由实际测量的调制电流与另一个调制电流之间的差确定的指数函数进行校正，该另一个调制电流由为裸露的LD确定的值。

26. 发明授权

US08345721B2 Method for driving optical transmitter 有权
标题翻译：光发射机的驱动方法
公开(公告)号：US08345721B2
公开(公告)日：2013-01-01
申请号：US12817251
申请日：2010-06-17
申请人： Moriyasu Ichino , Hiroto Ishibashi , Toru Ukai , Yuanzhe Li
发明人： Moriyasu Ichino , Hiroto Ishibashi , Toru Ukai , Yuanzhe Li
IPC分类号： H01S3/00
CPC分类号： H01S5/06832 , H01S5/06804
摘要： A method to control an LD (laser diode) is disclosed. The method compares the operating temperature of the LD with a transition temperature. When the former temperature exceeds the latter, the modulation current is set based on the bias current, which is independently determined by the APC loop. On the other hand, the operating temperature is less than the transition temperature; the modulation current is determined by the operating temperature.
摘要翻译：公开了一种控制LD（激光二极管）的方法。该方法将LD的工作温度与转变温度进行比较。当前一种温度超过后者时，调制电流基于由APC回路独立确定的偏置电流来设定。另一方面，工作温度小于转变温度; 调制电流由工作温度决定。

27. 发明授权

US07484967B2 Optical module with a flexible printed circuit board to be electrically connected with a host board 有权
标题翻译：具有柔性印刷电路板的光学模块，与主机板电连接
公开(公告)号：US07484967B2
公开(公告)日：2009-02-03
申请号：US11623597
申请日：2007-01-16
申请人： Moriyasu Ichino , Satoshi Yoshikawa
发明人： Moriyasu Ichino , Satoshi Yoshikawa
IPC分类号： H01R12/00
CPC分类号： H01R13/03 , H01R12/62 , H05K1/0393 , H05K1/141 , H05K1/147 , H05K1/189 , H05K3/244 , H05K3/281 , H05K3/3447 , H05K3/363 , H05K2201/09481 , H05K2201/10121 , H05K2201/10446
摘要： The present invention is to prevent a snapping of wiring patterns formed on a flexible printed circuit (FPC) board by bending the FPC board and to make the length of the pattern short to suppress the degradation of high frequency signals transmitted on the wiring pattern. The FPC board provides a via hole in the land region formed on a primary surface of the FPC board and to be attached to the host board. The wiring pattern, which is formed on a secondary surface opposite to the primary surface and is made of copper foil, is drawn from the via hole at the secondary surface. The wiring pattern is covered by a cover layer. Bending the FPC board such that the primary surface is outside, the FPC board is bent at a boundary of the land region at the primary surface, while; the FPC board provides the cover layer on a region of the secondary surface corresponding to the land region, which prevents the wiring pattern on the second region from snapping.
摘要翻译：本发明是通过弯曲FPC基板来防止形成在柔性印刷电路板（FPC）板上的布线图案，并且使图案的长度变短以抑制在布线图案上传输的高频信号的劣化。 FPC基板在形成在FPC基板的主面上的焊盘区域中设置通孔，并安装在主板上。形成在与主表面相对的二次表面上并由铜箔制成的布线图案从次级表面的通孔拉出。布线图案被覆盖层覆盖。 FPC基板使主面向外弯曲，FPC基板在主面的边界处弯曲，同时， FPC基板在对应于焊盘区域的次表面的区域上提供覆盖层，防止第二区域上的布线图案卡住。

28. 发明授权

US07282692B2 Light receiving method of an avalanche photodiode and a bias control circuit of the same 有权
标题翻译：雪崩光电二极管的光接收方法及其偏置控制电路
公开(公告)号：US07282692B2
公开(公告)日：2007-10-16
申请号：US11712497
申请日：2007-03-01
申请人： Moriyasu Ichino
发明人： Moriyasu Ichino
IPC分类号： H01J40/14
CPC分类号： H01L31/107 , H01L31/02027
摘要： The present invention provides a method to maintain a multiplication factor of an avalanche photodiode independent on temperatures without additional devices. The light-receiving apparatus of the invention includes an avalanche photodiode (APD), a dividing circuit, and a bias supplying circuit. The APD has a first region, where a significant multiplication factor appears, and a second region without any multiplication factor. The dividing circuit extracts a second signal.
摘要翻译：本发明提供一种在没有附加装置的情况下保持雪崩光电二极管的倍增因子独立于温度的方法。本发明的光接收装置包括雪崩光电二极管（APD），分压电路和偏压供给电路。 APD具有出现显着倍增因子的第一区域和没有任何乘法因子的第二区域。分频电路提取第二信号。

29. 发明申请

US20070053699A1 Optical receiver 有权
标题翻译：光接收机
公开(公告)号：US20070053699A1
公开(公告)日：2007-03-08
申请号：US11514321
申请日：2006-09-01
申请人： Moriyasu Ichino
发明人： Moriyasu Ichino
IPC分类号： H04B10/06
CPC分类号： H04B10/66
摘要： An optical receiver of the present embodiment has a light-receiving block, a discriminating block, a detecting block, a controlling block, and an adjusting block. The light-receiving block generates complementary signals in accordance with a photo current output from a semiconductor light-receiving element which receives an optical signal. The discriminating block has a differential amplifier having input terminals connected to output terminals of the light-receiving block via respective coupling capacitors. The detecting block generates an intensity signal corresponding to the photo current. The controlling block generates a first signal in accordance with a dispersion signal corresponding to dispersion of an optical transmission line, a distance signal corresponding to the distance of the optical transmission line, and an intensity signal. The adjusting block generates a second signal used for adjusting an offset voltage between the inputs of the differential amplifier in accordance with the first signal, and an output terminal of the adjusting block is connected to one of the input terminals of the differential amplifier for providing the second signal.
摘要翻译：本实施例的光接收机具有光接收块，识别块，检测块，控制块和调整块。光接收块根据从接收光信号的半导体光接收元件输出的光电流产生互补信号。鉴别块具有差分放大器，其具有通过相应的耦合电容器连接到光接收块的输出端的输入端。检测块产生对应于光电流的强度信号。控制块根据对应于光传输线的色散的色散信号，对应于光传输线的距离的距离信号和强度信号产生第一信号。调整块根据第一信号产生用于调整差分放大器的输入之间的偏移电压的第二信号，并且调节块的输出端连接到差分放大器的一个输入端，以提供第二信号。

30. 发明申请

US20060255245A1 Light-receiving method of an avalanche photodiode and a bias control circuit of the same 有权
标题翻译：雪崩光电二极管的光接收方法及其偏压控制电路
公开(公告)号：US20060255245A1
公开(公告)日：2006-11-16
申请号：US11488077
申请日：2006-07-18
申请人： Moriyasu Ichino
发明人： Moriyasu Ichino
IPC分类号： H01J40/14
CPC分类号： H01L31/107 , H01L31/02027
摘要： The present invention provides a method to maintain a multiplication factor of an avalanche photodiode independent on temperatures without additional devices. The light-receiving apparatus of the invention includes an avalanche photodiode (APD), a dividing circuit, and a bias supplying circuit. The APD has a first region, where a significant multiplication factor appears, and a second region without any multiplication factor. The dividing circuit extracts a second signal
摘要翻译：本发明提供一种在没有附加装置的情况下保持雪崩光电二极管的倍增因子独立于温度的方法。本发明的光接收装置包括雪崩光电二极管（APD），分压电路和偏压供给电路。 APD具有出现显着倍增因子的第一区域和没有任何乘法因子的第二区域。分频电路提取第二信号

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