公开(公告)号：US06728495B1

公开(公告)日：2004-04-27

申请号：US09521447

申请日：2000-03-07

申请人： Makoto Miki ,  Norio Murakami ,  Toshiyuki Takauji ,  Toru Matsuyama ,  Tadashi Ikeuchi ,  Tadao Inoue ,  Norio Ueno

发明人： Makoto Miki ,  Norio Murakami ,  Toshiyuki Takauji ,  Toru Matsuyama ,  Tadashi Ikeuchi ,  Tadao Inoue ,  Norio Ueno

IPC分类号： H04B1004

CPC分类号： H04B10/504 ,  H04B10/564

摘要： A light output control circuit to update light output synchronously with input data in burst signal transmission system is disclosed. The circuit has a function of issuing light deterioration warning unerringly, which includes: a monitoring portion to detect light output emitted from a light emission element driven in accordance with transmission data; a level comparator to compare a monitoring signal outputted from the monitoring portion with a reference signal; a data detection portion to detect the existence of the transmission data; and an output controller to determine whether a light output deterioration warning is to be issued using an output signal of the data detection portion and an output signal of the level comparator.

摘要翻译： 公开了一种用于在脉冲串信号传输系统中更新与输入数据同步输出的光输出控制电路。 该电路具有发出光劣化警告的功能，其特征在于，包括：监视部，其检测从根据发送数据驱动的发光元件发出的光输出; 电平比较器，用于将从监视部分输出的监视信号与参考信号进行比较; 数据检测部分，用于检测发送数据的存在; 以及输出控制器，用于使用数据检测部分的输出信号和电平比较器的输出信号来确定是否发出光输出恶化警告。

公开(公告)号：US06975813B1

公开(公告)日：2005-12-13

申请号：US09505783

申请日：2000-02-17

申请人： Tadao Inoue ,  Tadashi Ikeuchi ,  Hiroyuki Rokugawa ,  Masaaki Kawai ,  Norio Ueno ,  Norio Murakami ,  Toru Matsuyama ,  Makoto Miki ,  Toshiyuki Takauji

发明人： Tadao Inoue ,  Tadashi Ikeuchi ,  Hiroyuki Rokugawa ,  Masaaki Kawai ,  Norio Ueno ,  Norio Murakami ,  Toru Matsuyama ,  Makoto Miki ,  Toshiyuki Takauji

IPC分类号： H01L33/00 ,  H01S5/00 ,  H01S5/068 ,  H01S5/0683 ,  H04B10/04 ,  H01S3/00 ,  H01S3/13

CPC分类号： H01S5/0683 ,  H01S5/06825

摘要： Using a switching signal from a coarse/fine switching and operation mode switching circuit, the width of change of a counter control value during power up is increased, and the width of change is reduced once a steady state is reached. In the steady state, the frequency of updating is limited by a control signal from an update permit control circuit. In the steady state, the frequency band of a current source in an LD driving circuit is reduced in width.

摘要翻译： 使用来自粗/精切换和动作模式切换电路的切换信号，上电期间的计数器控制值的变化幅度增大，一旦达到稳定状态，则变化幅度减小。 在稳定状态下，更新频率受来自更新许可控制电路的控制信号的限制。 在稳态中，LD驱动电路中的电流源的频带宽度减小。

公开(公告)号：US07266308B2

公开(公告)日：2007-09-04

申请号：US11203544

申请日：2005-08-15

申请人： Tadao Inoue ,  Tadashi Ikeuchi ,  Hiroyuki Rokugawa ,  Masaaki Kawai ,  Norio Ueno ,  Norio Murakami ,  Toru Matsuyama ,  Makoto Miki ,  Toshiyuki Takauji

发明人： Tadao Inoue ,  Tadashi Ikeuchi ,  Hiroyuki Rokugawa ,  Masaaki Kawai ,  Norio Ueno ,  Norio Murakami ,  Toru Matsuyama ,  Makoto Miki ,  Toshiyuki Takauji

IPC分类号： H04B10/04 ,  H04B10/12 ,  H01S3/13

CPC分类号： H01S5/0683 ,  H01S5/06825

摘要： Using a switching signal from a coarse/fine switching and operation mode switching circuit, the width of change of a counter control value during power up is increased, and the width of change is reduced once a steady state is reached. In the steady state, the frequency of updating is limited by a control signal from an update permit control circuit. In the steady state, the frequency band of a current source in an LD driving circuit is reduced in width.

摘要翻译： 使用来自粗/精切换和动作模式切换电路的切换信号，上电期间的计数器控制值的变化幅度增大，一旦达到稳定状态，则变化幅度减小。 在稳定状态下，更新频率受来自更新许可控制电路的控制信号的限制。 在稳态中，LD驱动电路中的电流源的频带宽度减小。

公开(公告)号：US20060024068A1

公开(公告)日：2006-02-02

申请号：US11203544

申请日：2005-08-15

申请人： Tadao Inoue ,  Tadashi Ikeuchi ,  Hiroyuki Rokugawa ,  Masaaki Kawai ,  Norio Ueno ,  Norio Murakami ,  Toru Matsuyama ,  Makoto Miki ,  Toshiyuki Takauji

发明人： Tadao Inoue ,  Tadashi Ikeuchi ,  Hiroyuki Rokugawa ,  Masaaki Kawai ,  Norio Ueno ,  Norio Murakami ,  Toru Matsuyama ,  Makoto Miki ,  Toshiyuki Takauji

IPC分类号： H04B10/04 ,  H04B10/12

CPC分类号： H01S5/0683 ,  H01S5/06825

摘要： Using a switching signal from a coarse/fine switching and operation mode switching circuit, the width of change of a counter control value during power up is increased, and the width of change is reduced once a steady state is reached. In the steady state, the frequency of updating is limited by a control signal from an update permit control circuit. In the steady state, the frequency band of a current source in an LD driving circuit is reduced in width.

摘要翻译： 使用来自粗/精切换和动作模式切换电路的切换信号，上电期间的计数器控制值的变化幅度增大，一旦达到稳定状态，则变化幅度减小。 在稳定状态下，更新频率受来自更新许可控制电路的控制信号的限制。 在稳态中，LD驱动电路中的电流源的频带宽度减小。

公开(公告)号：US06282216B1

公开(公告)日：2001-08-28

申请号：US09471370

申请日：1999-12-23

申请人： Tadashi Ikeuchi ,  Tadao Inoue ,  Toru Matsuyama ,  Toshiyuki Takauji ,  Norio Ueno

发明人： Tadashi Ikeuchi ,  Tadao Inoue ,  Toru Matsuyama ,  Toshiyuki Takauji ,  Norio Ueno

IPC分类号： H01S313

CPC分类号： H04B10/564 ,  H04B10/504

摘要： A burst mode optical transmitter circuit comprises a semiconductor laser, a photodiode for monitoring the light output from the semiconductor laser, a current-voltage converting circuit for converting the current detected by the photodiode into a voltage, an APC amplifier, a holding circuit for holding, as a current control signal, the output signal from the APC amplifier, a driving circuit for supplying a driving current to the semiconductor laser according the current control signal from the holding circuit and the the data input in the burst mode, and a data interruption detecting circuit for detecting an interrupt period of the data input to the driving circuit to reset the holding circuit, in which the current control signal held in the hold circuit is reset by the reset signal, whereby a stable burst optical transmission can be performed stably with a simple construction.

摘要翻译： 突发模式光发射机电路包括半导体激光器，用于监测来自半导体激光器的光输出的光电二极管，用于将由光电二极管检测的电流转换为电压的电流 - 电压转换电路，APC放大器，用于保持的保持电路 作为电流控制信号，来自APC放大器的输出信号，用于根据来自保持电路的电流控制信号和在突发模式中输入的数据向半导体激光器提供驱动电流的驱动电路和数据中断 检测电路，用于检测输入到驱动电路的数据的中断周期以复位保持电路，其中保持在保持电路中的电流控制信号由复位信号复位，从而可以稳定地执行稳定的突发光传输， 一个简单的施工。

公开(公告)号：US06292284B1

公开(公告)日：2001-09-18

申请号：US09174309

申请日：1998-10-19

申请人： Toshiyuki Takauji ,  Toru Matsuyama ,  Tadao Inoue ,  Tadashi Ikeuchi ,  Satoshi Ide

发明人： Toshiyuki Takauji ,  Toru Matsuyama ,  Tadao Inoue ,  Tadashi Ikeuchi ,  Satoshi Ide

IPC分类号： H04B1004

CPC分类号： H04B10/504 ,  H04B10/07 ,  H04B10/564

摘要： The present invention provides a light emitting element driving apparatus having a driving unit for driving a light emitting element by means of a driving signal while performing automatic light power control, which enables a light output to rise at a high speed in the head portion of a burst signal to be first inputted and light outputs of a second burst signal after the first burst signal and signals thereafter to be stably supplied irrespective of holding time. To this end, the light emitting element driving apparatus comprises a reference voltage generation unit for generating a reference voltage from an input electric signal containing data information, the reference voltage being used for obtaining a light output having specified power from the light emitting element in a normal condition, a monitoring voltage generation unit for generating a monitoring voltage signal corresponding to power of an optical signal outputted from the light emitting element, a light power control unit for controlling, based on a result of comparison from the reference voltage and the monitoring voltage signal, the driving unit by a discrete control amount such that a light output from the light emitting element can have the specified power and an initial value setting unit for setting a raising component as an initial value in a control signal having the discrete control amount.

摘要翻译： 本发明提供了一种发光元件驱动装置，其具有驱动单元，用于通过驱动信号驱动发光元件，同时进行自动光功率控制，这使得光输出能够高速地在 突发信号首先被输入，并且在第一个突发信号之后的第二个突发信号的光输出，此后信号被稳定地供给，而不管保持时间如何。 为此，发光元件驱动装置包括：参考电压产生单元，用于从包含数据信息的输入电信号产生参考电压，该参考电压用于获得具有来自发光元件的特定功率的光输出 监视电压产生单元，用于产生对应于从发光元件输出的光信号的功率的监视电压信号;光功率控制单元，用于根据参考电压和监视电压的比较结果进行控制; 信号，驱动单元通过离散控制量使得从发光元件输出的光能够具有指定的功率，以及初始值设置单元，用于将具有离散控制量的控制信号中的提升分量设置为初始值。

公开(公告)号：US06795656B1

公开(公告)日：2004-09-21

申请号：US09526273

申请日：2000-03-15

申请人： Tadashi Ikeuchi ,  Yuji Tochio ,  Toshiyuki Takauji

发明人： Tadashi Ikeuchi ,  Yuji Tochio ,  Toshiyuki Takauji

IPC分类号： H04B1004

CPC分类号： H04B10/504 ,  H01S5/042 ,  H01S5/0428 ,  H04B10/564

摘要： An optical transmission circuit includes: a semiconductor laser; a drive circuit for supplying drive current to the semiconductor laser; a duty changing circuit for changing a duty value of an input data; a converting circuit for supplying a duty control signal to the duty changing circuit in order to adjust the duty value of the input data; and an adjusting circuit for supplying an optical power control signal to the converting circuit and the drive circuit. The adjusting circuit performs an initial setting of an optical power of the semiconductor laser, and the converting circuit performs the initial setting of the duty value so as to have a characteristic opposite to the optical power. According to the above structure, it is possible to realize the duty adjustment and the optical power adjustment by using only one adjusting circuit so that it is possible to achieve a simplified, miniatuarized, and low cost optical transmission circuit.

摘要翻译： 光传输电路包括：半导体激光器; 用于向半导体激光器提供驱动电流的驱动电路; 用于改变输入数据的占空比值的占空比变换电路; 转换电路，用于向占空比变换电路提供占空比控制信号，以调整输入数据的占空比值; 以及用于向转换电路和驱动电路提供光功率控制信号的调整电路。 调整电路对半导体激光器的光功率进行初始设定，转换电路进行占空比值的初始设定，使其具有与光功率相反的特性。 根据上述结构，可以通过仅使用一个调整电路来实现占空比调整和光功率调整，使得可以实现简化的，微型化的和低成本的光传输电路。