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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。
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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
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。
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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
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。
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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。
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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
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。
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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
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。
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7.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。
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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。
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公开(公告)号：US09080317B2
公开(公告)日：2015-07-14
申请号：US13983099
申请日：2012-02-07
申请人： Toru Matsuyama
发明人： Toru Matsuyama
摘要： An excavation control system includes a working unit, hydraulic cylinders, a prospective speed obtaining part, a speed limit selecting part and a hydraulic cylinder controlling art. The prospective speed part is configured to obtain a first prospective speed depending on a first distance between the bucket and a first designed surface, and a second prospective speed depending on a second distance between the bucket and a second designed surface. The speed limit selecting part is configured to select one of the first and second prospective speeds as a speed limit based on a relative relation between the first designed surface and the bucket and a relative relation between the second designed surface and the bucket. The hydraulic cylinder controlling part is configured to limit a relative speed of the bucket relative to one of the first and second designed surfaces to the speed limit.
摘要翻译： 挖掘控制系统包括工作单元，液压缸，预期速度获取部，限速选择部和液压缸控制技术。 预期速度部分被配置为根据铲斗和第一设计表面之间的第一距离获得第一预期速度，并且取决于铲斗和第二设计表面之间的第二距离的第二预期速度。 限速选择部被配置为基于第一设计表面和铲斗之间的相对关系以及第二设计表面和铲斗之间的相对关系来选择第一和第二预期速度中的一个作为速度限制。 液压缸控制部被配置为将铲斗相对于第一和第二设计表面之一的相对速度限制到速度限制。
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10.发明授权公开(公告)号：US08195050B2
公开(公告)日：2012-06-05
申请号：US12405832
申请日：2009-03-17
CPC分类号： H04B10/0795 , H04J3/0682 , H04J3/1694
摘要： An optical transmission apparatus communicable with a plurality of subscriber including a delay measuring part for detecting a response delay time from each subscriber based on reception timing of the delay measurement response optical packet, a detection part for detecting a received optical level of the delay measurement response optical packet received by the reception part and a state determination part for determining quality of an optical transmission state between the optical transmission apparatus and each subscriber based on the received optical level of the delay measurement response optical packet of each of the plurality of subscribers.
摘要翻译： 一种光传输装置，可与多个用户通信，包括延迟测量部分，用于根据延迟测量响应光分组的接收定时检测每个用户的响应延迟时间;检测部分，用于检测延迟测量响应的接收光电平 基于接收部接收到的光分组，以及状态判定部，根据所述多个用户中的每一个的所述延迟测量响应光分组的接收光水平，确定所述光传输装置与各用户之间的光传输状态的质量。
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