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61. 发明申请

US20080252981A1 Optical space transmission module 失效
标题翻译：光空间传输模块
公开(公告)号：US20080252981A1
公开(公告)日：2008-10-16
申请号：US11976535
申请日：2007-10-25
申请人： Hideo Yasumoto , Hiroyuki Sasai
发明人： Hideo Yasumoto , Hiroyuki Sasai
IPC分类号： G02B5/02
CPC分类号： H04B10/1121 , G02B19/0028 , G02B19/0052
摘要： An optical space transmission module is provided, which reduces an upper limit of light output based on safety standard of laser, reduces light returned to a laser, and is made smaller in size. The optical space transmission module comprises a light emitting section 100 which outputs a transmission light, a base section including a reflection section 111 which reflects the transmission light, a reflection type diffusion section 120 which reflects and converts into a diffused light the reflected light which has been reflected by the reflection section 111. The reflection section 111 has a function to increase a beam diameter of the transmission light after reflection.
摘要翻译：提供一种光学空间传输模块，其基于激光的安全标准降低光输出的上限，减少返回到激光器的光，并使其尺寸更小。光学空间传输模块包括输出透射光的发光部分100，包括反射透射光的反射部分111的基部部分，反射型扩散部分120，反射和转换成扩散光，其具有被反射部111反射。反射部111具有增加反射后的透射光的光束直径的功能。

62. 发明申请

US20070171946A1 Optical transmitter circuit 失效
标题翻译：光发射机电路
公开(公告)号：US20070171946A1
公开(公告)日：2007-07-26
申请号：US11657105
申请日：2007-01-24
申请人： Kazutoshi Hase , Hiroyuki Sasai , Tomoaki Ieda
发明人： Kazutoshi Hase , Hiroyuki Sasai , Tomoaki Ieda
IPC分类号： H01S3/13
CPC分类号： H01S5/06832 , H01S5/0427 , H04B10/504 , H04B10/508
摘要： A first peaking current generating section 1 generates a first peaking current P1 in synchronism with the transitions of a digital signal S, being positive at the rising edge and negative at the falling edge. A second peaking current generating section 3 generates a second peaking current P2 in synchronism with the transitions of the digital signal S, being negative at the rising edge and positive at the falling edge. A first light emitting element driving section 2 produces a first driving current D1 obtained by combining together a signal amplitude current according to the amplitude of the digital signal S and a first peaking current P1. A second light emitting element driving section 4 produces a second driving current D2 obtained by combining together the signal amplitude current according to the amplitude of the digital signal S and a second peaking current P2. Then, the first and second light emitting element driving sections 2 and 4 drive the light emitting element 5 by using a driving current D3 obtained by subtracting the first driving current D1 from the second driving current D2.
摘要翻译：第一峰值电流产生部分1与数字信号S的跃迁同步地产生第一峰值电流P 1，其在上升沿为正，在下降沿为负。第二峰值电流产生部分3产生与数字信号S的跃迁同步的第二峰值电流P 2，在上升沿为负，在下降沿为正。第一发光元件驱动部分2产生通过根据数字信号S的振幅和第一峰值电流P1将信号幅度电流组合在一起获得的第一驱动电流D1。第二发光元件驱动部分4产生第二驱动电流通过根据数字信号S的振幅和第二峰值电流P 2将信号幅度电流组合在一起而获得的驱动电流D 2。然后，第一和第二发光元件驱动部分2,4驱动发光元件5 使用从第二驱动电流D 2减去第一驱动电流D 1而获得的驱动电流D 3。

63. 发明授权

US07212747B2 Optical transmission device and optical transmission method for transmitting a burst radio signal 失效
标题翻译：用于发送突发无线电信号的光传输设备和光传输方法
公开(公告)号：US07212747B2
公开(公告)日：2007-05-01
申请号：US10456910
申请日：2003-06-09
申请人： Tsutomu Niiho , Hiroyuki Sasai , Kouichi Masuda , Kenji Miyanaga
发明人： Tsutomu Niiho , Hiroyuki Sasai , Kouichi Masuda , Kenji Miyanaga
IPC分类号： H04B10/04 , H04B10/12 , H04B10/00 , H04B10/16
CPC分类号： H04B10/25758
摘要： A light emitting section outputs an optical signal having an intensity corresponding to a transmission timing signal, the optical signal modulated based on a radio transmission signal. A received photocurrent detection section detects an intensity of an optical signal received by a light receiving section. In accordance with the detected intensity, a high frequency amplification section amplifies the output signal of the light receiving section, and a transmission timing signal reconstruction section reconstructs the transmission timing signal.
摘要翻译：发光部输出具有与发送定时信号对应的强度的光信号，基于无线发送信号调制的光信号。接收光电流检测部分检测由光接收部分接收的光信号的强度。根据检测到的强度，高频放大部放大光接收部的输出信号，发送定时信号重构部重建发送定时信号。

64. 发明申请

US20050266797A1 Radio communication system 失效
标题翻译：无线通信系统
公开(公告)号：US20050266797A1
公开(公告)日：2005-12-01
申请号：US10530976
申请日：2004-07-22
申请人： Kuniaki Utsumi , Hiroaki Yamamoto , Kouichi Masuda , Tsutomu Niiho , Mariko Nakaso , Kazuo Tanaka , Hiroyuki Sasai
发明人： Kuniaki Utsumi , Hiroaki Yamamoto , Kouichi Masuda , Tsutomu Niiho , Mariko Nakaso , Kazuo Tanaka , Hiroyuki Sasai
IPC分类号： H04B7/005 , H04B10/00 , H04B10/071 , H04B10/077 , H04B10/079 , H04B10/272 , H04J13/00 , H04W52/04 , H04W52/14 , H04W52/24 , H04W88/08 , H04W92/00 , H04B7/14
CPC分类号： H04W52/143 , H04B10/25754 , H04W52/24 , H04W88/085
摘要： The present invention is directed to a wireless communication system capable of keeping a level of a wireless signal received by a relay apparatus (20) within a predetermined dynamic range. In a control apparatus (10), a transmitting section (102) converts a downstream electric signal into a downstream optical signal and transmits the downstream optical signal to the relay apparatus (20) via an optical transmission path (40). The relay apparatus (20) converts the received downstream optical signal into a downstream electric signal and transmits the downstream electric signal as a wireless signal to a wireless communication terminal (30) from a transmitting/receiving antenna section (204). In the relay apparatus (20), a level adjustment section (207) adjusts the level of the wireless signal transmitted by the relay apparatus (20) such that the receiving level of the wireless signal received by the relay apparatus is kept within a predetermined range.
摘要翻译：本发明涉及能够将由中继装置（20）接收的无线信号的电平保持在规定动态范围内的无线通信系统。在控制装置（10）中，发送部（102）将下行电信号转换为下行光信号，经由光传输路径（40）将下行光信号发送给中继装置（20）。中继装置（20）将接收到的下行光信号转换为下行电信号，并将发送/接收天线部（204）的下行电信号作为无线信号发送到无线通信终端（30）。在中继装置（20）中，电平调整部（207）调整由中继装置（20）发送的无线信号的电平，使得由中继装置接收到的无线信号的接收电平保持在预定范围内。

65. 发明申请

US20050262545A1 CATV uplink optical transmission system 失效
标题翻译： CATV上行光传输系统
公开(公告)号：US20050262545A1
公开(公告)日：2005-11-24
申请号：US10437175
申请日：2003-05-14
申请人： Kouichi Masuda , Hiroyuki Sasai , Shinichi Kido , Hideyuki Sogabe
发明人： Kouichi Masuda , Hiroyuki Sasai , Shinichi Kido , Hideyuki Sogabe
IPC分类号： H04B10/2537 , H04B10/27 , H04B10/272 , H04N7/173
CPC分类号： H04B10/272 , H04B10/2537 , H04B10/27
摘要： A CATV station apparatus 100 subjects received optical signals to processes of optical-electrical conversion, signal separation, coupling, and demodulation for obtaining an uplink signal. A received photocurrent monitoring section 170 compares a received photocurrent at a optical receiving section 110 with a predetermined reference current. If the received photocurrent is equal to or higher than the reference current, an amplifying section 130 amplifies a signal output from a signal separating section 120 at a predetermined level. If the received photocurrent is lower than the reference current, on the other hand, it is determined that a non-linear phenomenon, such as stimulated Brillouin scattering, has occurred in an optical fiber 200. The amplifying section 130 then outputs a signal at a level which does not affect, even after being coupled with other signals, communications performed by other optical transmission systems.
摘要翻译：接收电台装置100将接收的光信号接收到光电转换，信号分离，耦合和解调的处理，以获得上行链路信号。接收光电流监测部170将光接收部110的接收光电流与规定的基准电流进行比较。如果接收的光电流等于或高于参考电流，则放大部分130将从信号分离部分120输出的信号放大到预定电平。另一方面，如果接收到的光电流低于参考电流，则确定在光纤200中已经发生诸如受激布里渊散射之类的非线性现象。然后，放大部分130即使在与其他信号耦合之后也不会影响其他光传输系统执行的通信的信号。

66. 发明授权

US06804637B1 Method, apparatus, and recording medium for retrieving optimum template pattern 有权
标题翻译：用于检索最佳模板图案的方法，装置和记录介质
公开(公告)号：US06804637B1
公开(公告)日：2004-10-12
申请号：US09597270
申请日：2000-06-20
申请人： Naoyuki Tokuda , Hiroyuki Sasai
发明人： Naoyuki Tokuda , Hiroyuki Sasai
IPC分类号： G06F1728
CPC分类号： G06F17/2836
摘要： To retrieve an optimum template pattern in response to an input sentence, a set of templates is arranged in a plurality of template blocks containing an arbitrary number of sentence components, including grammatically correct and/or incorrect components. A score is assigned to every word in the set of templates according to its importance. The candidate template patterns and the input sentence are retrieved, the scores of the matched words are calculated, and the total of the scores of the entire paths are calculated. Optimum level comparison values are then calculated using the score of the matching words as the numerator and the total score as the denominator. The candidate template pattern having the largest optimum level comparison value among optimum level comparison values that provide the largest numerator, is selected as the optimum template pattern. The input sentence is then corrected using this optimum template pattern.
摘要翻译：为了响应于输入句子来检索最佳模板模式，一组模板被布置在包含任意数量的句子分量的多个模板块中，包括语法上正确和/或不正确的组件。根据其重要性，将分数分配给模板集中的每个单词。检索候选模板模式和输入句子，计算匹配词的分数，并计算整个路径的得分总数。然后使用匹配词的分数作为分子和总分数作为分母来计算最佳水平比较值。选择提供最大分子的最佳电平比较值中具有最大最佳电平比较值的候选模板图案作为最佳模板图案。然后使用该最佳模板模式校正输入句子。

67. 发明授权

US06392770B1 Multi-point optical transmission system 有权
标题翻译：多点光传输系统
公开(公告)号：US06392770B1
公开(公告)日：2002-05-21
申请号：US09320144
申请日：1999-05-26
申请人： Hiroyuki Sasai , Kazuki Maeda , Koichi Masuda
发明人： Hiroyuki Sasai , Kazuki Maeda , Koichi Masuda
IPC分类号： H04J1408
CPC分类号： H04B10/25753 , H04B10/25752 , H04J14/0298
摘要： Radio base stations subject each code-division multiplex signal to frequency conversion so as to vary each frequency thereof according to the radio base stations and then converts the signal to an optical signal before transmitting the same to a switching station. The switching station multiplexes the optical signals, subjects a signal obtained after multiplexing to optical-electrical conversion, and extracts the code-division multiplex signal from the respective electrical signal obtained after the conversion. Consequently, each signal to be demodulated by demodulating sections includes nothing but the code-division multiplex signal outputted from the radio base stations. Therefore, a code-division multiplex signal outputted from a desired base station is not disturbed by code-division multiplex signals outputted from the other stations as a noise as will be in a conventional system.
摘要翻译：无线电基站将每个码分多路复用信号进行频率转换，以根据无线电基站改变其每个频率，然后在将信号发送到交换台之前将该信号转换为光信号。开关站将光信号复用，对多路复用后获得的信号进行光电转换，并从转换后获得的各电信号中提取码分多路复用信号。因此，由解调部分解调的每个信号仅包括从无线电基站输出的码分多路复用信号。因此，从传统的系统来看，从其它站输出的码分多路复用信号作为噪声不会妨碍从期望的基站输出的码分多路复用信号。

68. 发明授权

US06292673B1 Radio signal transmitter 有权
标题翻译：无线电信号发射机
公开(公告)号：US06292673B1
公开(公告)日：2001-09-18
申请号：US09343681
申请日：1999-06-30
申请人： Kazuki Maeda , Hiroyuki Sasai , Kouichi Masuda , Susumu Morikura
发明人： Kazuki Maeda , Hiroyuki Sasai , Kouichi Masuda , Susumu Morikura
IPC分类号： H04B700
CPC分类号： H04B1/04
摘要： A signal including an RF signal and a code division multiple access signal is transmitted so that, in relation to both of the RF signal and the code division multiple access signal, a receiving end can obtain a signal having sufficiently larger power as compared with noise and with no distortion. In order to attain this object, a separation part separates the signal into the RF signal and the code division multiple access signal at a sending end. An amplification part amplifies the RF signal with an amplification factor related to its power. An amplification part amplifies the code division multiple access signal with an amplification factor related to its power. A combination part combines the amplified RF signal and the amplified code division multiple access signal with each other.
摘要翻译：发送包括RF信号和码分多址信号的信号，使得相对于RF信号和码分多址信号两者，接收端可以获得与噪声相比具有足够大功率的信号，并且没有失真。为了实现这个目的，分离部分在发送端将信号分离成RF信号和码分多址信号。放大部分以与其功率相关的放大因子放大RF信号。放大部分以与其功率相关的放大因子放大码分多址信号。组合部分将放大的RF信号和放大的码分多址信号彼此组合。

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