专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US07212745B2 Optical transmission system 失效
标题翻译：光传输系统
公开(公告)号：US07212745B2
公开(公告)日：2007-05-01
申请号：US09988706
申请日：2001-11-20
申请人： Kazunori Numata , Satoshi Furusawa , Susumu Morikura
发明人： Kazunori Numata , Satoshi Furusawa , Susumu Morikura
IPC分类号： H04B10/00 , H04B10/12
CPC分类号： G02B6/4204 , G02B6/02 , G02B6/02033 , G02B6/14 , G02B6/268 , G02B6/32 , G02B6/421 , H04B10/2581
摘要： In an optical transmission system, a lens converges an optical signal outputted from a light emission element. The optical signal having passed .through the lens enters a multi-mode fiber (MMF). A vertex of the lens and an input plane of the MMF are at a distance. The distance is set to a value which is not equal to the distance from the vertex to a focal point of the lens. As a result, a lowcost optical transmission system can be provided in which the influence of mode dispersion is reduced.
摘要翻译：在光传输系统中，透镜会聚从发光元件输出的光信号。通过透镜的光信号进入多模光纤（MMF）。透镜的顶点和MMF的输入平面距离一定。该距离被设定为不等于从顶点到透镜焦点的距离的值。结果，可以提供降低模式色散影响的低成本光传输系统。

2. 发明授权

US06636342B2 Light source used in wavelength multiplexing 失效
标题翻译：光源用于波长复用
公开(公告)号：US06636342B2
公开(公告)日：2003-10-21
申请号：US09764380
申请日：2001-01-19
申请人： Satoshi Furusawa , Susumu Morikura
发明人： Satoshi Furusawa , Susumu Morikura
IPC分类号： G02F202
CPC分类号： H04J14/02 , G02F1/37 , H04B10/506 , H04B10/572
摘要： A group of semiconductor laser diodes outputs fundamental-wave lights controlled so that each wavelength thereof is double the wavelength of a light for wavelength multiplexing transmission. The fundamental-wave lights are provided to a light receiver, and then to a group of wavelength conversion elements, wherein the fundamental-wave lights are converted into lights each having half the wavelength of each fundamental-wave light. The group of wavelength conversion elements outputs lights including the converted lights each having half the wavelength of each fundamental-wave light and the fundamental-wave lights. The outputted lights are passed through a group of fundamental-wave optical eliminators typified by an optical filter for passing the converted lights and eliminating the fundamental-wave lights, a guiding part, and then an optical multiplexer, and then guided to a transmission medium. Thus, the light controlled in wavelength with high accuracy can be outputted without controlling the semiconductor laser diodes in oscillation wavelength with high accuracy.
摘要翻译：一组半导体激光二极管输出控制的基波光，使得其每个波长的波长为用于波长复用传输的光的波长的两倍。将基波光提供给光接收器，然后提供给一组波长转换元件，其中基波光被转换成各自具有每个基波光的一半波长的光。一组波长转换元件输出包括每个具有每个基波光的一半波长的转换光和基波光的光。输出的光通过由滤光器代表的一组基波消光器，用于使转换的光通过，并消除基波光，引导部分，然后被引导到光复用器，然后被引导到传输介质。因此，能够高精度地输出振荡波长的半导体激光二极管，能够高精度地控制波长的光。

3. 发明授权

US07058300B2 Data transmission rate arbitration method and optical communication apparatus 失效
标题翻译：数据传输率仲裁方法和光通信装置
公开(公告)号：US07058300B2
公开(公告)日：2006-06-06
申请号：US10125392
申请日：2002-04-19
申请人： Keisuke Kinoshita , Satoshi Furusawa , Masaru Fuse , Susumu Morikura
发明人： Keisuke Kinoshita , Satoshi Furusawa , Masaru Fuse , Susumu Morikura
IPC分类号： H04B10/08 , H04B17/00 , H04L12/28 , H04L12/56
CPC分类号： H04B10/0775 , H04B2210/075
摘要： A transmitting-end device generates a pilot signal with a pilot signal generation section, and transmits a pilot signal to a receiving-end device. At the receiving-end device, a transmission rate modification section detects the transmission band of an optical transmission line based on the amplitude of the pilot signal, and decides a data transmission rate acceptable to the receiving-end device by taking into account the transmission band of the optical transmission line. Based on a maximum data transmission data acceptable to the transmitting-end device and the data transmission rate thus decided, a control section in the receiving-end device arbitrates a data transmission rate between it and the transmitting-end device.
摘要翻译：发送终端装置利用导频信号生成部生成导频信号，并将导频信号发送到接收端装置。在接收端设备，传输速率修改部分基于导频信号的幅度来检测光传输线的传输频带，并且通过考虑传输频带来确定接收端设备可接受的数据传输速率的光传输线。基于发送端设备可接受的最大数据传输数据和如此决定的数据传输速率，接收端设备中的控制部分仲裁其与发送端设备之间的数据传输速率。

4. 发明授权

US5539846A System and method for transmitting parallel signals via an optical transmission path 失效
标题翻译：通过光传输路径传输并行信号的系统和方法
公开(公告)号：US5539846A
公开(公告)日：1996-07-23
申请号：US410313
申请日：1995-03-24
申请人： Susumu Morikura , Satoshi Furusawa , Hideaki Takechi
发明人： Susumu Morikura , Satoshi Furusawa , Hideaki Takechi
IPC分类号： H03G3/02 , H03M9/00 , H04J3/06 , H04J14/00 , H04J14/04 , H04J14/06 , H04L7/00 , H04L25/49 , G02B6/28
CPC分类号： H04J3/0623
摘要： A parallel signal transmission system for transmitting parallel signals from a transmission unit to a reception unit via an optical fiber, at a low cost without spoiling their quality. The transmission unit converts received parallel signals into serial signals frame by frame, by means of a frame sync signal, and further converts the serial signals into direct current equilibrium signals which are either CMI codes or DMI codes. At the same time, the direct current equilibrium signals are multiplexed with the frame sync signal in accordance with the code ruling violation in order to drive a laser diode having a 0.78 .mu.m wavelength and output intensity-modulated optical signals to the optical transmission path. As the optical transmission path, a plastic clad fiber is used whose core diameter is 200 .mu.m or larger in order to agree with the laser diode having a 0.78 .mu.m wavelength. In the reception unit, the optical signals are photo/electric converted by means of a silicone photo diode, amplified into direct current equilibrium signals having a predetermined amplitude by means of an alternating current coupling type amplifier. The amplified direct current equilibrium signals are divided into serial signals and the frame sync signal by detecting a coding rule violation, and reproduced into original parallel signals by using the divided frame sync signal.
摘要翻译：一种并行信号传输系统，用于以低成本从光传输单元传输并行信号到接收单元，而不会损害其质量。传输单元通过帧同步信号逐帧将接收到的并行信号转换为串行信号，并将串行信号转换为CMI码或DMI码的直流平衡信号。同时，直流平衡信号根据代码规则违规与帧同步信号多路复用，以驱动具有0.78μm波长的激光二极管，并向光传输路径输出强度调制的光信号。作为光传输路径，使用芯直径为200μm以上的塑料包层光纤，以符合0.78μm波长的激光二极管。在接收单元中，通过硅光电二极管对光信号进行光电转换，通过交流耦合型放大器放大成具有预定幅度的直流平衡信号。放大的直流平衡信号通过检测编码规则违反而被分成串行信号和帧同步信号，并通过使用划分的帧同步信号再现成原始的并行信号。

5. 发明授权

US06728494B2 Light-emitting device drive circuit, and optical transmission system using the circuit 失效
标题翻译：发光装置驱动电路和使用该电路的光传输系统
公开(公告)号：US06728494B2
公开(公告)日：2004-04-27
申请号：US09854527
申请日：2001-05-15
申请人： Kazunori Numata , Satoshi Furusawa , Susumu Morikura
发明人： Kazunori Numata , Satoshi Furusawa , Susumu Morikura
IPC分类号： H04B1004
CPC分类号： H04B10/50
摘要： A digital electrical signal Vin for transmission is supplied to a transistor Q12, a current compensation circuit 11, and a signal current source 13 to be band-compensated for generating a signal current I0. A predetermined current Id for a constant-current source 14 is subtracted from the signal current I0, and the result is an injection current Iin that drives an LED 15. The current Id is adjusted so that the injection current Iin becomes 0 at the low level. Thus, a signal-to-noise (S/N) ratio in waveform of light outputted from the LED 15 can be improved. Accordingly, the S/N ratio of the transmitted signal can be improved with band compensation.
摘要翻译：用于传输的数字电信号Vin被提供给晶体管Q12，电流补偿电路11和信号电流源13进行带宽补偿以产生信号电流I0。从信号电流I0减去恒定电流源14的预定电流Id，结果是驱动LED 15的注入电流Iin。调节电流Id，使得注入电流Iin在低电平为0 。因此，可以提高从LED 15输出的光的波形中的信噪比（S / N）比。因此，可以通过频带补偿来提高发送信号的S / N比。

6. 发明授权

US06577684B1 TRANSMISSION/RECEPTION METHOD AND DEVICE WHERE INFORMATION IS ENCODED AND DECODED ACCORDING TO RULES DEFINED BASED ON A RELATION BETWEEN A PREVIOUSLY-GENERATED MULTILEVEL CODE AND A CURRENTLY GENERATED MULTILEVEL 有权
标题翻译：传输/接收方法和设备，其中的信息是根据根据以前生成的多代码与当前生成的多个代码之间的关系定义的规则进行编码和解码的
公开(公告)号：US06577684B1
公开(公告)日：2003-06-10
申请号：US09287179
申请日：1999-04-06
申请人： Jun Hirano , Susumu Morikura , Satoshi Furusawa
发明人： Jun Hirano , Susumu Morikura , Satoshi Furusawa
IPC分类号： H04L2534
CPC分类号： H04L25/4919
摘要： At a transmitting end, a selector multiplexes a command and data inputted from different systems to generate a multiplexed signal string(s). An encoding portion determines an amplitude value of a current multilevel code according to predetermined encoding rules based on a detected symbol and the amplitude value of a multilevel code generated immediately before and generates a multilevel code string. A transmitting portion transmits the generated multilevel code string to a receiving end through a transmission path. A decoding portion of the receiving end decodes and reproduces the command and the data with an amplitude value of the multilevel code string outputted from a receiving portion and the amplitude value of the multilevel code immediately before received according to predetermined decoding rules. The decoding portion separately outputs the command and the data. This allows various types of information to be multiplexed and transmitted with small delay.
摘要翻译：在发送端，选择器复用从不同系统输入的命令和数据，以产生多路复用的信号串。编码部根据检测符号和紧接着生成的多级代码的振幅值，根据规定的编码规则来决定当前多级代码的振幅值，生成多级代码串。发送部通过发送路径将生成的多级代码串发送到接收端。接收端的解码部分根据预定的解码规则解码并再现从接收部分输出的多级代码串的振幅值和紧接在之前接收的多级代码的振幅值的命令和数据。解码部分分别输出命令和数据。这允许各种类型的信息以小的延迟被复用和发送。

7. 发明授权

US06271690B1 Discriminator 有权
标题翻译：歧视者
公开(公告)号：US06271690B1
公开(公告)日：2001-08-07
申请号：US09534873
申请日：2000-03-24
申请人： Jun Hirano , Susumu Morikura , Satoshi Furusawa
发明人： Jun Hirano , Susumu Morikura , Satoshi Furusawa
IPC分类号： H03K5153
CPC分类号： H04L25/063 , H03M5/20
摘要： A discriminator capable of generating a multi-level signal with less restrictions is provided. In a discriminator D1, a wave-shaping circuit 3 shapes the waveform of one branched multi-level signal MS, according to a control signal CS from a control signal generator 10 so that a detector 4 that follows the wave-shaping circuit 3 can correctly detect a first reference level RL1. The detector 4 detects the first reference level RL1 from an output signal OS3 from the wave-shaping circuit 3. A reference level generator 5 generates a second reference level RL2 of the multi-level signal MS. A threshold generator 6 generates thresholds Th1, Th2, and Th3 as much as required according to the first and second reference levels RL1 and RL2. Comparators 82 to 84 compares the amplitude of the other branched multi-level signal MS with the thresholds Th1, Th2, and Th3. A control signal generator 10 generates a control signal CS according to the comparison results from the comparators 82 to 84. The above structured discriminator D1 enables the transmitting side to generate a multi-level signal with less restrictions.
摘要翻译：提供能够产生较少限制的多电平信号的鉴别器。在鉴频器D1中，波形整形电路3根据来自控制信号发生器10的控制信号CS对一个分支多电平信号MS的波形进行整形，使得跟随波形整形电路3的检测器4可以正确地检测第一参考电平RL1。检测器4从来自波形整形电路3的输出信号OS3检测第一参考电平RL1。参考电平发生器5产生多电平信号MS的第二参考电平RL2。阈值发生器6根据第一和第二参考电平RL1和RL2产生所需的阈值Th1，Th2和Th3。比较器82至84将另一个分支多电平信号MS的幅度与阈值Th1，Th2和Th3进行比较。控制信号发生器10根据比较器82至84的比较结果产生控制信号CS。上述结构鉴别器D1使得发送侧能够以较少的限制产生多电平信号。

8. 发明授权

US5430763A Frequency stabilizing circuit used for a pulse modulator for an image signal including a synchronous signal 失效
标题翻译：用于包括同步信号的图像信号的脉冲调制器的频率稳定电路
公开(公告)号：US5430763A
公开(公告)日：1995-07-04
申请号：US979834
申请日：1992-11-23
申请人： Susumu Morikura , Hiroaki Nakata
发明人： Susumu Morikura , Hiroaki Nakata
IPC分类号： H03C3/09 , H03K7/06 , H03L7/083 , H04N7/00 , H04K1/02 , H04L25/03 , H04L25/49
CPC分类号： H03C3/0975 , H03C3/0941 , H03C3/095 , H03K7/06 , H03L7/083 , H04N7/00
摘要： The present invention discloses a frequency stabilizing circuit used for a modulator that modulates an image signal including a synchronous signal into a pulse modulation signal. The frequency stabilizing circuit comprises a detecting device for detecting the synchronous signal included in the image signal that has not been modulated to output a pulse based on the detection, a pulse generating device for outputting a pulse by extracting a modulated signal outputted from the pulse modulator corresponding to the synchronous signal, and a feedback controlling device for increasing and/or decreasing a level of the image signal to be inputted to the pulse modulator in accordance with the difference between the pulse width of the pulse signal outputted from the detecting device and that of the pulse signal outputted from the pulse generating device.
摘要翻译：本发明公开了一种用于调制器的频率稳定电路，其将包括同步信号的图像信号调制成脉冲调制信号。频率稳定电路包括：检测装置，用于检测包括在未被调制的图像信号中的同步信号，以便基于检测输出脉冲;脉冲发生装置，用于通过提取从脉冲调制器输出的调制信号来输出脉冲对应于同步信号的反馈控制装置，以及反馈控制装置，用于根据从检测装置输出的脉冲信号的脉冲宽度与从检测装置输出的脉冲信号的脉冲宽度之间的差异，增加和/或降低输入到脉冲调制器的图像信号的电平; 从脉冲发生装置输出的脉冲信号。

9. 发明授权

US07187740B2 Communications system 失效
标题翻译：通讯系统
公开(公告)号：US07187740B2
公开(公告)日：2007-03-06
申请号：US10648260
申请日：2003-08-27
申请人： Keisuke Kinoshita , Toshiyuki Kohri , Susumu Morikura
发明人： Keisuke Kinoshita , Toshiyuki Kohri , Susumu Morikura
IPC分类号： H04L25/08
CPC分类号： H04L1/22 , H04J3/0641 , H04L7/0083
摘要： A communication system is provided in which normal communications can be ensured even upon a loss of synchronization on a part of transmission paths configuring a network.The system is to perform data communications within a network configured by a plurality of devices. A synchronization detecting section detects a loss of synchronization for data transmission between devices connected to each other via the network. Upon detection by the synchronization detecting section of the loss of synchronization, a control information retaining section and a switching section included in the first device cause a connection with the second device to be cut off, and then again cause a connection with the device. Upon connection caused by the switching section between the devices, a connection processing section 16 performs a connecting process for enabling data communications between these devices.
摘要翻译：提供了一种通信系统，其中即使在配置网络的传输路径的一部分上的同步丢失也可以确保正常通信。该系统是在由多个设备配置的网络内执行数据通信。同步检测部检测经由网络彼此连接的设备之间的数据传输的同步丢失。在由同步检测部检测到失去同步的情况下，包括在第一装置中的控制信息保持部分和切换部分导致与第二装置的连接被切断，然后再次引起与装置的连接。在由设备之间的切换部分引起的连接时，连接处理部分16执行用于在这些设备之间进行数据通信的连接处理。

10. 发明授权

US07400836B2 Optical receiving device and optical receiving method 失效
标题翻译：光接收装置及光接收方式
公开(公告)号：US07400836B2
公开(公告)日：2008-07-15
申请号：US11037202
申请日：2005-01-19
申请人： Keisuke Kinoshita , Susumu Morikura
发明人： Keisuke Kinoshita , Susumu Morikura
IPC分类号： H04B10/06 , H04B1/10
CPC分类号： H04B10/6931
摘要： An optical receiving device capable of outputting a control signal and a data signal received as an optical signal, even if a received optical power of an optical signal inputted via an optical fiber fluctuates. An optical-to-electrical conversion section converts the optical signal inputted via the optical fiber to an electrical signal. A received optical power detection section detects a received optical power of the optical signal. A detection level setting section outputs a first detection level value or a second detection level value as a detection level. A comparison section compares the received optical power with the detection level. An output/stop switching section outputs an electrical signal as an output signal when the received optical power is greater than the detection level, and stops outputting the signal when the received optical power Pt is smaller than the detection level Lt.
摘要翻译：即使经由光纤输入的光信号的接收光功率波动，也能够输出作为光信号接收的控制信号和数据信号的光接收装置。光电转换部将经由光纤输入的光信号转换为电信号。接收光功率检测部分检测光信号的接收光功率。检测电平设定部输出第一检测电平值或第二检测电平值作为检测电平。比较部分将接收的光功率与检测电平进行比较。当接收的光功率大于检测电平时，输出/停止切换部分输出作为输出信号的电信号，并且当接收的光功率Pt小于检测电平Lt时，停止输出信号。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式