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9 条记录 (耗时 0.036 秒)

    Light output control circuit with a warning function of deteriorated light output
    3.
    发明授权
    Light output control circuit with a warning function of deteriorated light output 失效
    光输出控制电路具有恶化光输出的警告功能

    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。

    Optical transmitter circuit
    5.
    发明授权
    Optical transmitter circuit 失效
    光发射机电路

    公开(公告)号：US06597485B1

    公开(公告)日：2003-07-22

    申请号：US09517621

    申请日：2000-03-03

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

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

    IPC分类号： H04B1004

    CPC分类号： H04B10/504 ,  H04B10/564

    摘要： An optical transmitter circuit including a light receiving element, such as a photodiode, which monitors the optical output of a light emitting element such as a semiconductor laser. A current-voltage converting circuit supplies a drive current from a drive circuit to the light emitting element and converts the output voltage of the light receiving element into voltage. An APC amplifier compares the converted output signals and a reference signal, and a hold circuit holds the output signal of the APC amplifier and uses the output signal as a current control signal of the drive circuit. A “1” continuous signal detecting circuit detects the continuation of “1” in a specified number of bits in the input data (DATA) and updates the hold value in the hold circuit.

    摘要翻译： 一种包括诸如光电二极管的光接收元件的光发送器电路，其监测诸如半导体激光器的发光元件的光输出。 电流电压转换电路将来自驱动电路的驱动电流提供给发光元件，并将光接收元件的输出电压转换为电压。 APC放大器将转换的输出信号和参考信号进行比较，保持电路保持APC放大器的输出信号，并使用输出信号作为驱动电路的电流控制信号。 “1”连续信号检测电路检测输入数据（DATA）中指定位数的“1”继续，并更新保持电路中的保持值。

    Pulse width control circuit controlling pulse width of output light
    6.
    发明授权
    Pulse width control circuit controlling pulse width of output light 失效
    脉宽控制电路控制输出光的脉宽

    公开(公告)号：US06940327B2

    公开(公告)日：2005-09-06

    申请号：US10754703

    申请日：2004-01-12

    申请人： Makoto Miki ,  Toru Matsuyama

    发明人： Makoto Miki ,  Toru Matsuyama

    IPC分类号： H01S5/042 ,  H03K3/017 ,  H03K5/04 ,  H04L25/03

    CPC分类号： H04B10/508 ,  H01S5/0428 ,  H03K5/04 ,  H04L25/03834

    摘要： A circuit for controlling pulse width of a signal for driving a light emitting element, includes a pulse width control circuit capable of responding to multi-bit rates in the same circuit structure. For this purpose, the pulse width control circuit has a Tr/Tf control section controlling at least one of a rise time Tr and a fall time Tf of an input signal according to the bit rate of the input signal; a waveform shaping section shaping a signal output from the Tr/Tf control section to generate an output signal; and a control signal generating section generating a control signal for controlling an operation of the Tr/Tf control section based on pulse width control information.

    摘要翻译： 用于控制用于驱动发光元件的信号的脉冲宽度的电路包括能够以相同电路结构的多比特率响应的脉冲宽度控制电路。 为此，脉冲宽度控制电路具有根据输入信号的比特率控制输入信号的上升时间Tr和下降时间Tf中的至少一个的Tr / Tf控制部分; 波形整形部，对从Tr / Tf控制部输出的信号进行整形，生成输出信号; 以及控制信号生成部，其基于脉冲宽度控制信息生成用于控制Tr / Tf控制部的动作的控制信号。

    Optical transmitter provided with optical output control function
    7.
    发明授权
    Optical transmitter provided with optical output control function 失效
    光发射机具有光输出控制功能

    公开(公告)号：US06748181B2

    公开(公告)日：2004-06-08

    申请号：US09953860

    申请日：2001-09-18

    申请人： Makoto Miki ,  Toru Matsuyama ,  Hiroki Kanesaka

    发明人： Makoto Miki ,  Toru Matsuyama ,  Hiroki Kanesaka

    IPC分类号： H04B1004

    CPC分类号： H04B10/564 ,  H01S5/068 ,  H01S5/06804 ,  H01S5/0683 ,  H04B10/502 ,  H04B10/504

    摘要： The present invention alms at providing a low cost optical transmitter capable of controlling, with a high precision, fluctuations in optical output characteristic of a semiconductor light emitting device such as due to a temperature change. To this end, the optical transmitter of the present invention is constituted to comprise; a semiconductor light emitting device; a driving circuit for supplying a driving current to the semiconductor light emitting device; an optical output detecting section for detecting an optical output power of the semiconductor light emitting device; a storing section for storing temperature characteristic information including temperature characteristic data concerning the driving current to be supplied to the semiconductor light emitting device and temperature characteristic data concerning the optical output detecting section; a temperature detecting section for detecting temperature; and a controlling section for controlling the operation of the driving circuit, based on the temperature characteristic information read out from the storing section corresponding to the temperature detected by the temperature detecting section and based on the detection result of the optical output detecting section.

    摘要翻译： 本发明在提供能够高精度地控制诸如由于温度变化导致的半导体发光器件的光输出特性的波动的低成本光发射机的应用。 为此，本发明的光发射机构成为： 半导体发光器件; 用于向半导体发光器件提供驱动电流的驱动电路; 光输出检测部分，用于检测半导体发光器件的光输出功率; 用于存储温度特性信息的存储部分，包括关于要提供给半导体发光器件的驱动电流的温度特性数据和关于光输出检测部分的温度特性数据; 用于检测温度的温度检测部分; 以及控制部，其基于从所述存储部读出的与由所述温度检测部检测出的温度对应的温度特性信息，基于所述光输出检测部的检测结果来控制所述驱动电路的动作。

    Pulse width control circuit controlling pulse width of output light
    8.
    发明授权
    Pulse width control circuit controlling pulse width of output light 失效
    脉宽控制电路控制输出光的脉宽

    公开(公告)号：US06700423B1

    公开(公告)日：2004-03-02

    申请号：US10342251

    申请日：2003-01-15

    申请人： Makoto Miki ,  Toru Matsuyama

    发明人： Makoto Miki ,  Toru Matsuyama

    IPC分类号： H03K3017

    CPC分类号： H04B10/508 ,  H01S5/0428 ,  H03K5/04 ,  H04L25/03834

    摘要： A circuit for controlling pulse width of a signal for driving a light emitting element, includes a pulse width control circuit capable of responding to multi-bit rates in the same circuit structure. For this purpose, the pulse width control circuit has a Tr/Tf control section controlling at least one of a rise time Tr and a fall time Tf of an input signal according to the bit rate of the input signal; a waveform shaping section shaping a signal output from the Tr/Tf control section to generate an output signal; and a control signal generating section generating a control signal for controlling an operation of the Tr/Tf control section based on pulse width control information.

    摘要翻译： 用于控制用于驱动发光元件的信号的脉冲宽度的电路包括能够以相同电路结构的多比特率响应的脉冲宽度控制电路。 为此，脉冲宽度控制电路具有根据输入信号的比特率控制输入信号的上升时间Tr和下降时间Tf中的至少一个的Tr / Tf控制部分; 波形整形部，对从Tr / Tf控制部输出的信号进行整形，生成输出信号; 以及控制信号生成部，其基于脉冲宽度控制信息生成用于控制Tr / Tf控制部的动作的控制信号。