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11. 发明授权

US07013262B2 System and method for accurate grammar analysis using a learners' model and part-of-speech tagged (POST) parser 有权
公开(公告)号：US07013262B2
公开(公告)日：2006-03-14
申请号：US10072974
申请日：2002-02-12
申请人： Naoyuki Tokuda , Liang Chen , Hiroyuki Sasai
发明人： Naoyuki Tokuda , Liang Chen , Hiroyuki Sasai
IPC分类号： G06F17/27 , G06F17/28
CPC分类号： G09B19/06 , G06F17/274
摘要： An accurate grammar analyzer based on a so-called POST (part-of-speech tagged) parser and a learners' model for use in automated language learning applications such as the template-based ICALL (intelligent computer assisted language learning) system.

12. 发明申请

US20050266854A1 Wireless access system and method 审中-公开
标题翻译：无线接入系统及方法
公开(公告)号：US20050266854A1
公开(公告)日：2005-12-01
申请号：US10524026
申请日：2004-04-07
申请人： Tsutomu Niiho , Hiroyuki Sasai
发明人： Tsutomu Niiho , Hiroyuki Sasai
IPC分类号： H04L12/28 , H04L12/56 , H04W4/18 , H04W74/06 , H04Q7/20
CPC分类号： H04W74/08 , H04L12/2856
摘要： A wireless access system and method are provided by which the wireless communications area covered by a single access point is increased while maintaining the maintainability of the access point, minimizing an increase in system cost, and avoiding the hidden terminal problem. An access point (12) and terminals (16a to 16c) are connected via a master station (13), an optical multiplexing/demultiplexing section (14), and slave stations (15a to 15c). A downstream signal to the terminals (16a to 16c) from the access point (12) is transmitted such that the master station (13) outputs the downstream signal to each of the slave stations (15a to 15c) in a distributed manner through the optical multiplexing/demultiplexing section (14). An upstream signal to the access point (12) from any one of the terminals (for example, 16a) is transmitted to the master station (13) through a slave station (for example, 15a) and the optical multiplexing/demultiplexing section (14), and also sent to all other slave stations (for example, 15b and 15c) through the master station (13) or the optical multiplexing/demultiplexing section (14).
摘要翻译：提供了一种无线接入系统和方法，通过该无线接入系统和方法，增加了由单个接入点覆盖的无线通信区域，同时维持接入点的可维护性，最小化系统成本的增加，并避免了隐藏的终端问题。接入点（12）和终端（16a至16c）经由主站（13），光复用/解复用部分（14）和从站（15a至15c）连接。发送从接入点（12）到终端（16 a至16 c）的下行信号，使得主站（13）将下行信号输出到分布式（15）中的每个从站（15a至15c）通过光复用/解复用部分（14）。来自任何一个终端（例如，16a）的接入点（12）的上行信号通过从站（例如，15a）发送到主站（13），并且光复用/解复用部分（14），并且还通过主站（13）或光复用/解复用部分（14）发送到所有其他从站（例如，15b和15c）。

13. 发明授权

US06735581B2 Fourier series-based automatic generation system and method for multi-variable fuzzy systems 有权
标题翻译：基于傅里叶级数的自动生成系统和多变量模糊系统的方法
公开(公告)号：US06735581B2
公开(公告)日：2004-05-11
申请号：US09849985
申请日：2001-05-08
申请人： Naoyuki Tokuda , Liang Chen , Hiroyuki Sasai
发明人： Naoyuki Tokuda , Liang Chen , Hiroyuki Sasai
IPC分类号： G06F944
CPC分类号： G06N7/023 , G06N3/0436
摘要： A method of automatically generating a multi-variable fuzzy inference system using a Fourier series expansion. Sample sets are decomposed into a cluster of sample sets associated with given input variables. Fuzzy rules and membership functions are computed individually for each variable by solving a single input multiple outputs fuzzy system extracted from the set cluster. The resulting fuzzy rules and membership functions are composed and integrated back into the fuzzy system appropriate for the original sample set with a minimal computational cost. In addition, an overall system error can be related to errors at each stage of decomposition and composition, enabling error bounds or accuracy thresholds for each stage to be specified and ensuring the final precision of the resulting fuzzy system on the original sample set.
摘要翻译：一种使用傅里叶级数展开自动生成多变量模糊推理系统的方法。样本集被分解为与给定输入变量相关联的一组样本集。通过求解从集群提取的单输入多输出模糊系统，为每个变量单独计算模糊规则和隶属函数。所得到的模糊规则和隶属函数被组合并集成回到适用于原始样本集的模糊系统中，具有最小的计算成本。此外，整体系统错误可能与分解和组合的每个阶段的错误相关，使得要指定每个阶段的误差界限或精度阈值，并确保原始样本集上所得到的模糊系统的最终精度。

14. 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。

15. 发明授权

US5923661A Method of collecting large amounts of data in apparatus such as ATM exchange 失效
标题翻译：在ATM交换机等收集大量数据的方法
公开(公告)号：US5923661A
公开(公告)日：1999-07-13
申请号：US819732
申请日：1997-03-18
申请人： Emi Nemoto , Sumie Morita , Hiroyuki Sasai , Miho Tsuchiya
发明人： Emi Nemoto , Sumie Morita , Hiroyuki Sasai , Miho Tsuchiya
IPC分类号： H04Q3/545 , H04L12/70 , H04L29/06 , H04L29/08 , H04M3/00 , H04Q3/00 , H04L12/28 , H04L12/56
CPC分类号： H04L49/3081 , H04L29/06 , H04L49/254 , H04L49/255 , H04L49/50 , H04L2012/5639 , H04L2012/5681 , H04L49/30 , H04L69/324
摘要： A central control unit responsible for path control collects data from a distribution/concentration unit by issuing thereto a command containing the specification of multiple data items. The command also contains the specification of a window size. Of the requested data, the distribution/concentration unit first transmits data in an amount not exceeding the window size, and then, after reception of an ACK order from the central control unit, transmits remaining data if any.
摘要翻译：负责路径控制的中央控制单元通过发布包含多个数据项的规格的命令，从分配/集中单元收集数据。该命令还包含窗口大小的规范。在所请求的数据中，分配/集中单元首先发送数量不超过窗口大小的数据，然后在从中央控制单元接收到ACK命令之后发送剩余数据（如果有的话）。

16. 发明授权

US5490227A Light receiving module for SCM transmission 失效
标题翻译：用于SCM传输的光接收模块
公开(公告)号：US5490227A
公开(公告)日：1996-02-06
申请号：US324885
申请日：1994-10-18
申请人： Manabu Tanabe , Kuniaki Utsumi , Hideaki Takechi , Hiroyuki Sasai , Yasushi Matsui , Shigeru Yamane
发明人： Manabu Tanabe , Kuniaki Utsumi , Hideaki Takechi , Hiroyuki Sasai , Yasushi Matsui , Shigeru Yamane
IPC分类号： G02B6/02 , G02B6/26 , G02B6/42
CPC分类号： G02B6/421 , G02B6/02 , G02B6/262 , G02B6/4207
摘要： A light-receiving module includes: a pigtail optical fiber including a core portion for transmitting an optical signal and a cladding portion covering a side face of the core portion; an optical connector provided at a first end of the pigtail optical fiber for optically connecting a transmitting optical fiber with the end of the pigtail optical fiber; a light-receiving device having a light-receiving face for receiving the optical signal propagating through the core portion and for converting the optical signal into an electric signal; an optical coupling system for converging the optical signal emitted from a second end of the pigtail optical fiber onto the light-receiving face of the light-receiving device; and means for preventing light propagating through the cladding portion from reaching the light-receiving face of the light-receiving device so that the optical signal propagating through the core portion does not interfere with the light propagating through the cladding portion on the light-receiving face of the light-receiving device.
摘要翻译：光接收模块包括：辫状光纤，包括用于传输光信号的芯部分和覆盖芯部分的侧面的包层部分; 光纤连接器，其设置在所述尾纤光纤的第一端，用于将发射光纤与所述尾纤光纤的端部光学连接; 光接收装置，具有用于接收通过芯部传播的光信号并将光信号转换为电信号的光接收面; 光耦合系统，用于将从尾纤光纤的第二端发射的光信号会聚到光接收装置的光接收面上; 以及用于防止通过包层部分传播的光到达光接收装置的光接收面的装置，使得通过芯部传播的光信号不会干扰通过光接收面上的包层部分传播的光的光接收装置。

17. 发明申请

US20100166436A1 OPTICAL TRANSMITTER CIRCUIT 失效
标题翻译：光发射机电路
公开(公告)号：US20100166436A1
公开(公告)日：2010-07-01
申请号：US12280076
申请日：2007-02-20
申请人： Kazutoshi Hase , Hiroyuki Sasai , Tomoaki Ieda
发明人： Kazutoshi Hase , Hiroyuki Sasai , Tomoaki Ieda
IPC分类号： H04B10/04
CPC分类号： H04B10/502 , H04B10/564
摘要： A peaking current generating section (2) generates a spire-shaped peaking current that is in synchronism with the transitions of the digital signal (S), at the rising edge and the falling edge. A light emitting element driving section (5) produces a driving current obtained by combining together a signal amplitude current according to the amplitude of the digital signal (S) and the peaking current. Then, the light emitting element driving section (5) drives a light emitting element (1) by using the driving current. A signal analysis section (9) analyzes the digital signal (S) so as to set a control signal based on the pulse width of the digital signal (S). A clipping section (8) clips the peaking current of the driving current according to the control signal set by the signal analysis section (9).
摘要翻译：峰值电流产生部分（2）在上升沿和下降沿产生与数字信号（S）的转变同步的尖峰形峰值电流。发光元件驱动部（5）产生通过根据数字信号（S）的振幅和峰化电流组合信号振幅电流而获得的驱动电流。然后，发光元件驱动部（5）通过使用驱动电流来驱动发光元件（1）。信号分析部（9）分析数字信号（S），以便根据数字信号（S）的脉冲宽度设定控制信号。剪辑部分（8）根据由信号分析部分（9）设置的控制信号剪切驱动电流的峰值电流。

18. 发明授权

US07657182B2 Liquid lens optical transmitter system 失效
标题翻译：液体透镜光发射系统
公开(公告)号：US07657182B2
公开(公告)日：2010-02-02
申请号：US11498149
申请日：2006-08-03
申请人： Kazutoshi Hase , Hideo Yasumoto , Keisuke Kinoshita , Tomoaki Ieda , Hiroyuki Sasai
发明人： Kazutoshi Hase , Hideo Yasumoto , Keisuke Kinoshita , Tomoaki Ieda , Hiroyuki Sasai
IPC分类号： H04B10/00 , G02B3/14
CPC分类号： G02B26/0875 , G02B3/14 , G02B5/0242 , G02B5/0278 , G02B5/0294 , G02B7/006 , H04B10/1121
摘要： An optical transmission apparatus is provided in which high optical output power is secured in an optical transmitter, the fine adjustment of the optical axis is unnecessary, and the propagation range of the optical output signal can be adaptively changed. A diffusing liquid lens includes a first liquid and a second liquid containing a scattering material that scatters light, and the curvature of the boundary surface between the first and the second liquids is changed according to the control voltage applied from a controlling unit. A first optical signal outputted from a light emitting device is diffused in the first liquid, and emitted as a second optical signal having a spread angle corresponding to the curvature of the boundary surface and a substantially uniform radiant intensity distribution.
摘要翻译：提供了一种在光发射机中确保高光输出功率的光传输装置，不需要光轴的微调，可以适应地改变光输出信号的传播范围。扩散液体透镜包括第一液体和含有散射光的散射材料的第二液体，并且第一和第二液体之间的边界面的曲率根据从控制单元施加的控制电压而改变。从发光器件输出的第一光信号在第一液体中扩散，并且作为具有对应于边界表面的曲率的扩展角的第二光信号和基本均匀的辐射强度分布发射。

19. 发明授权

US07650112B2 Method and system for extending coverage of WLAN access points via optically multiplexed connection of access points to sub-stations 失效
标题翻译：用于通过接入点的光复用连接来扩展WLAN接入点覆盖范围的方法和系统
公开(公告)号：US07650112B2
公开(公告)日：2010-01-19
申请号：US10530651
申请日：2003-10-17
申请人： Kuniaki Utsumi , Hiroaki Yamamoto , Kouichi Masuda , Tsutomu Niiho , Mariko Nakaso , Hiroyuki Sasai
发明人： Kuniaki Utsumi , Hiroaki Yamamoto , Kouichi Masuda , Tsutomu Niiho , Mariko Nakaso , Hiroyuki Sasai
IPC分类号： H04B7/15
CPC分类号： H04W4/18 , H04B10/25754 , H04W84/12 , H04W88/04 , H04W92/02
摘要： A SW (70) receives an Ethernet® signal from an outside of areas E and F. The SW (70) selects and outputs the obtained Ethernet® signal to any one of APs (91a to 91e) in accordance with a network structure managed by the SW (70). The AP (91a to 91e) converts the Ethernet® signal to an electrical signal type wireless LAN signal, which is in turn output to a main station (10). The main station (10) frequency-multiplexes the signal output from each of the APs (91a to 91e), and converts the signal to an optical signal, which is in turn output to sub-stations (20a and 20b). The sub-station (20a and 20b) transmits the signal transmitted from the main station (10) to a terminal in the form of a wireless radio wave. Thereby, when a plurality of communication areas are present, the accommodation capacity of an AP can be effectively utilized in each communication area.
摘要翻译： SW（70）从区域E和F的外部接收以太网（R）信号.SW（70）根据以下（a）所示的AP（91a至91e）中的任何一个选择并输出所获得的以太网（R）信号 SW（70）管理的网络结构。 AP（91a至91e）将以太网（R）信号转换为电信号型无线LAN信号，该电信号型无线LAN信号又输出到主站（10）。主站（10）对从每个AP（91a至91e）输出的信号进行频率复用，并将该信号转换为光信号，该信号又输出到子站（20a和20b）。子站（20a和20b）以无线电波的形式将从主站（10）发送的信号发送到终端。因此，当存在多个通信区域时，可以在每个通信区域中有效地利用AP的容纳能力。

20. 发明授权

US07613399B2 Optical transmission system, optical transmitter, and optical receiver 失效
标题翻译：光传输系统，光发射机和光接收机
公开(公告)号：US07613399B2
公开(公告)日：2009-11-03
申请号：US11503181
申请日：2006-08-14
申请人： Hideo Yasumoto , Hiroyuki Sasai
发明人： Hideo Yasumoto , Hiroyuki Sasai
IPC分类号： H04B10/00
CPC分类号： H04B10/541 , H04B10/032
摘要： In order to improve a transmission speed of multilevel light transmission, increasing the number of light emitting elements is effective. However, in a method in which light outputs from a plurality of light emitting elements are added, because common mode noise contained in the light outputs is added, deterioration in transmission quality caused by the common mode noise prominently arises. Therefore, a difference between two light outputs is previously assigned to data to be transmitted. Specifically, an optical transmitter 102 converts data Dt to multilevel optical signals OSm1 and OSm2 and transmits the converted multilevel optical signals to an optical receiver 103. The optical receiver 103 restores the data Dt which is previously assigned to a difference between electrical signals ESr1 and ESr2 converted from the multilevel optical signals OSm1 and OSm2.
摘要翻译：为了提高多级光传输的传输速度，增加发光元件的数量是有效的。然而，在添加来自多个发光元件的光输出的方法中，由于相加了包含在光输出中的共模噪声，所以显着地出现了由共模噪声引起的传输质量的劣化。因此，两个光输出之间的差异预先分配给要发送的数据。具体地，光发射机102将数据Dt转换为多电平光信号OSm1和OSm2，并将转换的多电平光信号发送到光接收器103.光接收器103恢复先前分配给电信号ESr1和ESr2之间的差的数据Dt 从多级光信号OSm1和OSm2转换。

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