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1. 发明授权

US06775483B1 System, device, and method for wavelength-division multiplex optical transmission 失效
标题翻译：用于波分复用光传输的系统，设备和方法
公开(公告)号：US06775483B1
公开(公告)日：2004-08-10
申请号：US09659758
申请日：2000-09-11
申请人： Tsuyoshi Ikushima , Hiroyuki Sasai , Masaru Fuse
发明人： Tsuyoshi Ikushima , Hiroyuki Sasai , Masaru Fuse
IPC分类号： H04B1004
CPC分类号： H04J14/02 , H04B2201/70715
摘要： A wavelength-division multiplex optical transmission system is provided with: preliminary optical modulators 111 to 11n for outputting optical signals having different wavelengths from each other after being modulated by communications signals 11 to 1n that are signals to be supplied to specific optical receiving parts; an optical fiber 510 for transmitting the multiplexed optical signal; a subsequent optical modulator 210 for collectively modulating the transmitted optical signal so as to collectively modulate the optical signals being multiplexed by a broadcast signal 20 that is to be supplied equally to all optical receiving parts; and an optical fiber 520 for transmitting the modulated optical signal. A frequency band for the broadcast signal 20 is set not to overlap with any of those of the communications signals 11 to 1n. Accordingly, in each of optical receiving parts 411 to 41n, an electrical signal in which the communication signal 11 to 1n and the broadcast signal 20 are frequency-multiplexed can be obtained.
摘要翻译：波分多路复用光传输系统具有：用于在通过被提供给特定的光接收部分的信号的通信信号11至1n调制之后，输出具有不同波长的光信号的初步光调制器111至11n; 用于发送复用的光信号的光纤510; 随后的光调制器210，用于集中调制所发送的光信号，以便共同地调制由要被均等地提供给所有光接收部分的广播信号20复用的光信号; 以及用于发送调制光信号的光纤520。广播信号20的频带被设定为不与通信信号11至1n中的任一个重叠。因此，在每个光接收部分411至41n中，可以获得通信信号11至1n和广播信号20被频率复用的电信号。

2. 发明授权

US07539419B2 Optical transmission system for radio access and high frequency optical transmitter 失效
标题翻译：无线电接入光传输系统和高频光发射机
公开(公告)号：US07539419B2
公开(公告)日：2009-05-26
申请号：US12010866
申请日：2008-01-30
申请人： Hiroyuki Sasai , Masaru Fuse
发明人： Hiroyuki Sasai , Masaru Fuse
IPC分类号： H04B10/00 , H04J14/00
CPC分类号： H04B10/25754 , H04B10/25753
摘要： Modulators respectively modulate baseband signals into IF signals having different frequencies. A multiplexer multiplexes the IF signals. An electrical-optical converter intensity modulates the multiplexed IF signals into optical signals. A local oscillation signal source outputs a predetermined local oscillation signal. An external modulator intensity-modulates the optical signal using the local oscillation signal. An optical branching portion branches the intensity-modulated optical signal and respectively outputs branched optical signals to radio base stations. An optical-electrical converter converts the optical signal into an electric signal, to obtain an RF signal by frequency-converting the IF signal. An antenna only transmits a component having a desired radio frequency extracted in a band filter from the RF signal to a subscriber terminal. Frequency conversion from the IF signal to the RF signal is thus optically performed, whereby the frequency or electrical-optical converter is shared among the radio base stations.
摘要翻译：调制器分别将基带信号调制成具有不同频率的IF信号。多路复用器复用IF信号。电光转换器强度将多路复用的IF信号调制成光信号。本地振荡信号源输出预定的本地振荡信号。外部调制器使用本地振荡信号强度调制光信号。光分路部分将强度调制的光信号分支，并将分支的光信号分别输出到无线基站。光电转换器将光信号转换成电信号，通过对IF信号进行频率转换来获得RF信号。天线只将具有从频带滤波器提取的期望射频的分量从RF信号发送到用户终端。因此，从IF信号到RF信号的频率转换被光学地执行，由此在无线电基站之间共享频率或电 - 光转换器。

3. 发明授权

US07349634B2 Optical transmission system for radio access and high frequency optical transmitter 失效
标题翻译：无线电接入光传输系统和高频光发射机
公开(公告)号：US07349634B2
公开(公告)日：2008-03-25
申请号：US11600740
申请日：2006-11-17
申请人： Hiroyuki Sasai , Masaru Fuse
发明人： Hiroyuki Sasai , Masaru Fuse
IPC分类号： H04B10/00 , H04J14/00
CPC分类号： H04B10/25754 , H04B10/25753
摘要： Modulators respectively modulate baseband signals into IF signals having different frequencies. Multiplexers multiplex the IF signals. A local oscillation signal source outputs a predetermined local oscillation signal. An external modulator intensity-modulates an optical signal using the local oscillation signal. An optical branching portion branches the intensity-modulated optical signal. Modulators respectively modulate the multiplexed IF signals onto the branched optical signals and then output the optical signals to radio base stations. Optical-electrical converters convert the optical signals into electric signals and antennas transmit the electrical signals to subscriber terminals.
摘要翻译：调制器分别将基带信号调制成具有不同频率的IF信号。多路复用器对IF信号进行复用。本地振荡信号源输出预定的本地振荡信号。外部调制器使用本地振荡信号强调调制光信号。光分支部分分支强度调制光信号。调制器分别将多路复用的IF信号调制到分支的光信号上，然后将光信号输出到无线电基站。光电转换器将光信号转换为电信号，天线将电信号发送到用户终端。

4. 发明授权

US07236701B2 Optical transmission system for performing communication using a plurality of communication lines 失效
标题翻译：用于使用多条通信线进行通信的光传输系统
公开(公告)号：US07236701B2
公开(公告)日：2007-06-26
申请号：US10648428
申请日：2003-08-27
申请人： Toshihiko Yasue , Hiroyuki Sasai , Masaru Fuse
发明人： Toshihiko Yasue , Hiroyuki Sasai , Masaru Fuse
IPC分类号： H04J4/00 , H04J14/00
CPC分类号： H04B10/5059 , H04B10/5057 , H04B10/58 , H04J14/0298 , H04L5/0005 , H04L5/0037 , H04L5/0046 , H04L5/006
摘要： The present invention provides a low-cost optical transmission system using a plurality of subscriber lines which is capable of efficiently utilizing an optical transmission path. A communication status observing section 116 in a transmitting device 1 classifies subscribers into a plurality of groups based on a communication status at each subscriber end, and outputs constellation level information and level information which are different for each group. For each constant cycle, a modulation control section 117 and a gain control section 118 respectively set a QAM constellation level and a signal level which are different for each group and used in a basic modulating section 103.
摘要翻译：本发明提供一种使用多个用户线路的低成本光传输系统，其能够有效地利用光传输路径。发送设备1中的通信状态观察部分116基于每个用户端的通信状态将用户分为多个组，并且输出对于每个组不同的星座级别信息和级别信息。对于每个恒定周期，调制控制部分117和增益控制部分118分别设置在基本调制部分103中用于每个组并且用于基本调制部分103的QAM星座电平和信号电平。

5. 发明申请

US20070058975A1 Optical transmission system for radio access and high frequency optical transmitter 失效
标题翻译：无线电接入光传输系统和高频光发射机
公开(公告)号：US20070058975A1
公开(公告)日：2007-03-15
申请号：US11600740
申请日：2006-11-17
申请人： Hiroyuki Sasai , Masaru Fuse
发明人： Hiroyuki Sasai , Masaru Fuse
IPC分类号： H04J14/00
CPC分类号： H04B10/25754 , H04B10/25753
摘要： Modulators respectively modulate baseband signals into IF signals having different frequencies. A multiplexer multiplexes the IF signals. An electrical-optical converter intensity modulates the multiplexed IF signals into optical signals. A local oscillation signal source outputs a predetermined local oscillation signal. An external modulator intensity-modulates the optical signal using the local oscillation signal. An optical branching portion branches the intensity-modulated optical signal and respectively outputs branched optical signals to radio base stations. An optical-electrical converter converts the optical signal into an electric signal, to obtain an RF signal by frequency-converting the IF signal. An antenna only transmits a component having a desired radio frequency extracted in a band filter from the RF signal to a subscriber terminal. Frequency conversion from the IF signal to the RF signal is thus optically performed, whereby the frequency or electrical-optical converter is shared among the radio base stations.
摘要翻译：调制器分别将基带信号调制成具有不同频率的IF信号。多路复用器复用IF信号。电光转换器强度将多路复用的IF信号调制成光信号。本地振荡信号源输出预定的本地振荡信号。外部调制器使用本地振荡信号强度调制光信号。光分路部分将强度调制的光信号分支，并将分支的光信号分别输出到无线基站。光电转换器将光信号转换成电信号，通过对IF信号进行频率转换来获得RF信号。天线只将具有从频带滤波器提取的期望射频的分量从RF信号发送到用户终端。因此，从IF信号到RF信号的频率转换被光学地执行，由此在无线电基站之间共享频率或电 - 光转换器。

6. 发明授权

US06626588B1 Optical transmission apparatus 失效
标题翻译：光传输装置
公开(公告)号：US06626588B1
公开(公告)日：2003-09-30
申请号：US09503030
申请日：2000-02-14
申请人： Hiroyuki Sasai , Tsuyoshi Ikushima , Masaru Fuse
发明人： Hiroyuki Sasai , Tsuyoshi Ikushima , Masaru Fuse
IPC分类号： H04B1008
CPC分类号： H04B10/2537
摘要： An optical transmission apparatus capable of suppressing SBS by multiplexing an input signal with a pilot signal, and further capable of eliminating an adverse effect of intermodulation distortion between the input signal and the pilot signal is provided. When the input signal is a frequency-multiplexed signal obtained by multiplexing a plurality of signals aligned on a frequency axis at regular intervals &Dgr;f (&Dgr;f>0), a pilot signal generation part generates the pilot signal having a frequency {m−(1/2)}×&Dgr;f (m is an arbitrary natural number). A multiplex part multiplexes the input signal (electrical signal to be transmitted) with the pilot signal generated by the pilot signal generation part. An electrical-optical conversion part converts an electric signal outputted from the multiplex part into an optical signal through direct intensity modulation.
摘要翻译：提供一种能够通过将输入信号与导频信号进行复用来抑制SBS，并且还能够消除输入信号和导频信号之间的互调失真的不利影响的光传输装置。当输入信号是通过以规则间隔Deltaf（Deltaf> 0）复用在频率轴上排列的多个信号而获得的频率复用信号时，导频信号产生部分产生具有频率{m-（1 / 2xDeltaf（m是任意自然数），多路复用部分将输入信号（要发送的电信号）与由导频信号产生部分产生的导频信号进行多路复用，电光转换部分将从多路复用通过直接强度调制部分成为光信号。

7. 发明申请

US20080138076A1 Optical transmission system for radio access and high frequency optical transmitter 失效
标题翻译：无线电接入光传输系统和高频光发射机
公开(公告)号：US20080138076A1
公开(公告)日：2008-06-12
申请号：US12010866
申请日：2008-01-30
申请人： Hiroyuki Sasai , Masaru Fuse
发明人： Hiroyuki Sasai , Masaru Fuse
IPC分类号： H04B10/00
CPC分类号： H04B10/25754 , H04B10/25753
摘要： Modulators respectively modulate baseband signals into IF signals having different frequencies. A multiplexer multiplexes the IF signals. An electrical-optical converter intensity modulates the multiplexed IF signals into optical signals. A local oscillation signal source outputs a predetermined local oscillation signal. An external modulator intensity-modulates the optical signal using the local oscillation signal. An optical branching portion branches the intensity-modulated optical signal and respectively outputs branched optical signals to radio base stations. An optical-electrical converter converts the optical signal into an electric signal, to obtain an RF signal by frequency-converting the IF signal. An antenna only transmits a component having a desired radio frequency extracted in a band filter from the RF signal to a subscriber terminal. Frequency conversion from the IF signal to the RF signal is thus optically performed, whereby the frequency or electrical-optical converter is shared among the radio base stations.
摘要翻译：调制器分别将基带信号调制成具有不同频率的IF信号。多路复用器复用IF信号。电光转换器强度将多路复用的IF信号调制成光信号。本地振荡信号源输出预定的本地振荡信号。外部调制器使用本地振荡信号强度调制光信号。光分路部分将强度调制的光信号分支，并将分支的光信号分别输出到无线基站。光电转换器将光信号转换成电信号，通过对IF信号进行频率转换来获得RF信号。天线只将具有从频带滤波器提取的期望射频的分量从RF信号发送到用户终端。因此，从IF信号到RF信号的频率转换被光学地执行，由此在无线电基站之间共享频率或电 - 光转换器。

8. 发明授权

US07733580B2 Light emitting module and light receiving module 失效
标题翻译：发光模块和光接收模块
公开(公告)号：US07733580B2
公开(公告)日：2010-06-08
申请号：US11934315
申请日：2007-11-02
申请人： Tomoaki Ieda , Hiroyuki Sasai
发明人： Tomoaki Ieda , Hiroyuki Sasai
IPC分类号： G02B3/08
CPC分类号： G02B3/08
摘要： A plurality of first refraction surfaces 121 and a plurality of second refraction surfaces 122 are alternately provided on an emission surface of a lens element 120 so as to form concentric circles each having an optical axis 113 at the center thereof, and having diameters different from each other, and a light reflected by a plurality of reflection surfaces 123 provided on an incident surface of the lens element so as to form concentric circuits each having the optical axis 113 at the center thereof and having diameters different from each other, is refracted and emitted by the plurality of second refraction surfaces 122 at desired angles. Therefore, it is possible to enhance efficiency and an emission intensity, and reduce variations in brightness of an emitted light without increasing the diameter of the lens element 120, thereby realizing a light emitting module 100 enabling advantageous performance.
摘要翻译：在透镜元件120的发射表面上交替设置多个第一折射面121和多个第二折射面122，以形成同心圆，其中心具有光轴113，并且具有不同于每一个的直径并且由设置在透镜元件的入射表面上的多个反射表面123反射以便形成其中心具有彼此具有直径不同的光轴113的同心电路的光被折射和发射通过多个第二折射表面122以期望的角度。因此，可以提高效率和发光强度，并且可以在不增加透镜元件120的直径的情况下降低发光的亮度变化，从而实现具有有利性能的发光模块100。

9. 发明授权

US07583899B2 Space optical transmission apparatus and space optical transmission system 失效
标题翻译：空间光传输装置和空间光传输系统
公开(公告)号：US07583899B2
公开(公告)日：2009-09-01
申请号：US11498144
申请日：2006-08-03
申请人： Hiroyuki Sasai , Tomoaki Ieda , Kazutoshi Hase
发明人： Hiroyuki Sasai , Tomoaki Ieda , Kazutoshi Hase
IPC分类号： H04B10/10
CPC分类号： H04B10/118
摘要： A space optical transmission apparatus is provided which achieves high-speed simultaneous space optical transmission with respect to a plurality of terminals. In the space optical transmission apparatus, a light receiving section receives an optical signal from a terminal. A control section estimates how much optical axes of a master station and the terminal are deviated from each other, based on the received optical signal. The control section selects one of a plurality of light sources which requires a smallest amount of shift of an optical axis thereof, based on the estimated optical axis deviation amount, so as to communicate with the terminal.
摘要翻译：提供一种实现相对于多个终端的高速同时空间光传输的空间光传输装置。在空间光传输装置中，光接收部从端子接收光信号。控制部基于接收到的光信号，估计主站和终端的光轴彼此偏离多少。控制部基于估计的光轴偏差量选择需要其光轴的最小偏移量的多个光源中的一个，以便与终端通信。

10. 发明授权

US07534986B2 Optical wireless transmission system 失效
标题翻译：光无线传输系统
公开(公告)号：US07534986B2
公开(公告)日：2009-05-19
申请号：US11790449
申请日：2007-04-25
申请人： Mariko Nakaso , Hiroyuki Sasai
发明人： Mariko Nakaso , Hiroyuki Sasai
IPC分类号： H04B10/00
CPC分类号： H04B10/803
摘要： A light emission section, including a light emitting element such as a semiconductor laser, emits a light beam in accordance with communication data. A light reception section, including a light receiving element such as a photodiode, receives the light beam emitted by the light emission section. The light emission section and the light reception section are positioned and an emission angle and an incidence angle of the light beam are determined such that the light beam emitted by the light emission section to the light reception section is prevented from being reflected by a surface of the optical reception section and/or a mounting substrate and being returned to the light emission section.
摘要翻译：包括诸如半导体激光器的发光元件的发光部分根据通信数据发射光束。包括诸如光电二极管的光接收元件的光接收部分接收由发光部分发射的光束。定位发光部和光接收部，并且确定光束的发射角和入射角，使得由光发射部分发射到光接收部分的光束被防止被光接收部和/或安装基板，返回到发光部。

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