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

US07460829B2 Wireless communication system 失效
标题翻译：无线通信系统
公开(公告)号：US07460829B2
公开(公告)日：2008-12-02
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： H04B7/185
CPC分类号： H04W52/143 , H04B10/25754 , H04W52/24 , H04W88/085
摘要： A wireless communication system capable of keeping a level of a wireless signal received by a relay apparatus within a predetermined dynamic range. In a control apparatus, a transmitting section converts a downstream electric signal into a downstream optical signal and transmits the downstream optical signal to the relay apparatus via an optical transmission path. The relay apparatus 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 from a transmitting/receiving antenna section. In the relay apparatus, a level adjustment section adjusts the level of the wireless signal transmitted by the relay apparatus such that the receiving level of the wireless signal received by the relay apparatus is kept within a predetermined range.
摘要翻译：一种无线通信系统，其能够将中继装置接收到的无线信号的电平保持在规定的动态范围内。在控制装置中，发送部将下行电信号转换为下行光信号，经由光传输路径将下行光信号发送给中继装置。中继装置将接收到的下行光信号转换成下行电信号，并且将来自发送/接收天线部的无线信号的下行电信号发送到无线通信终端。在中继装置中，电平调整部分调整由中继装置发送的无线信号的电平，使得由中继装置接收的无线信号的接收电平保持在预定范围内。

2. 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。

3. 发明申请

US20060045054A1 Wireless communication system 失效
标题翻译：无线通信系统
公开(公告)号：US20060045054A1
公开(公告)日：2006-03-02
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： H04Q7/24
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）根据以下的方式选择并将获得的以太网（R）信号输出到任何一个AP（91a至91e）具有由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，该光信号又输出到子站（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。

4. 发明授权

US08311414B2 Optical space transfer apparatus using image sensor 有权
标题翻译：使用图像传感器的光学空间传送装置
公开(公告)号：US08311414B2
公开(公告)日：2012-11-13
申请号：US12373852
申请日：2007-08-10
申请人： Tsutomu Niiho , Hiroyuki Sasai , Mariko Nakaso
发明人： Tsutomu Niiho , Hiroyuki Sasai , Mariko Nakaso
IPC分类号： H04B10/00
CPC分类号： H04B10/1121
摘要： A transmission device includes a first light emission unit having a light source for emitting one optical signal. A reception unit includes an X-Y address system image sensor, having a pixel region including a plurality of pixels, for receiving the optical signal by the pixel region; a classification unit for creating classification information representing a pixel group including pixels, among the plurality of pixels, which are irradiated with the optical signal; and a control unit for controlling the X-Y address system image sensor in accordance with the classification information to simultaneously read signals of the pixels belonging to the pixel group.
摘要翻译：传输装置包括具有用于发射一个光信号的光源的第一发光单元。接收单元包括具有包括多个像素的像素区域的X-Y地址系统图像传感器，用于由像素区域接收光信号; 分类单元，用于在所述多个像素中创建表示包含像素的像素组的分类信息，所述像素组被照射所述光信号; 以及控制单元，用于根据分类信息控制X-Y地址系统图像传感器，以同时读取属于该像素组的像素的信号。

5. 发明申请

US20090317088A1 OPTICAL SPACE TRANSFER APPARATUS USING IMAGE SENSOR 有权
标题翻译：使用图像传感器的光学空间传送装置
公开(公告)号：US20090317088A1
公开(公告)日：2009-12-24
申请号：US12373852
申请日：2007-08-10
申请人： Tsutomu Niiho , Hiroyuki Sasai , Mariko Nakaso
发明人： Tsutomu Niiho , Hiroyuki Sasai , Mariko Nakaso
IPC分类号： H04B10/02
CPC分类号： H04B10/1121
摘要： A transmission device includes a first light emission unit having a light source for emitting one optical signal. A reception unit includes an X-Y address system image sensor, having a pixel region including a plurality of pixels, for receiving the optical signal by the pixel region; a classification unit for creating classification information representing a pixel group including pixels, among the plurality of pixels, which are irradiated with the optical signal; and a control unit for controlling the X-Y address system image sensor in accordance with the classification information to simultaneously read signals of the pixels belonging to the pixel group.
摘要翻译：传输装置包括具有用于发射一个光信号的光源的第一发光单元。接收单元包括具有包括多个像素的像素区域的X-Y地址系统图像传感器，用于由像素区域接收光信号; 分类单元，用于在所述多个像素中创建表示包含像素的像素组的分类信息，所述像素组被照射所述光信号; 以及控制单元，用于根据分类信息控制X-Y地址系统图像传感器，以同时读取属于该像素组的像素的信号。

6. 发明申请

US20090097856A1 RECEIVER APPARATUS FOR USE IN OPTICAL SPACE TRANSMISSION SYSTEM 审中-公开
标题翻译：用于光学空间传输系统的接收装置
公开(公告)号：US20090097856A1
公开(公告)日：2009-04-16
申请号：US12295792
申请日：2007-04-03
申请人： Hiroyuki Sasai , Tsutomu Niiho , Mariko Nakaso
发明人： Hiroyuki Sasai , Tsutomu Niiho , Mariko Nakaso
IPC分类号： H04B10/10
CPC分类号： H04B10/1141
摘要： There included are a plurality of light receiving sections (121, 122) for receiving a plurality of optical signals (R1, R2) and respectively converting the received optical signals to a plurality of electrical signals (r1, r2); a first calculating section (130) for subjecting the plurality of electrical signals (r1, r2) to a process of canceling interference components occurring due to propagation of the plurality of optical signals through space; and a second calculating section (140) for calculating, with respect to each of the plurality of electrical signals whose interference components have been canceled by the first calculating section, whether or not a distortion occurring due to optical beat interference has a value less than or equal to a predetermined permissible value.
摘要翻译：包括多个光接收部分（121,122），用于接收多个光信号（R1，R2）并分别将所接收的光信号转换成多个电信号（r1，r2）; 第一计算部分，用于对多个电信号（r1，r2）进行消除由于多个光信号通过空间传播而产生的干扰分量的处理; 以及第二计算部分，用于针对由第一计算部分消除了干扰分量的多个电信号中的每一个，计算由于光学差拍干扰而产生的失真是否具有小于或等于的值，等于预定的允许值。

7. 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。

8. 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）。

9. 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。

10. 发明申请

US20080106780A1 OPTICAL MODULATOR AND MODULATION METHOD 失效
标题翻译：光学调制器和调制方法
公开(公告)号：US20080106780A1
公开(公告)日：2008-05-08
申请号：US11935744
申请日：2007-11-06
申请人： Tsutomu Niiho , Kouichi Masuda , Masaru Fuse , Fumio Fujisaki , Kuniharu Itakura , Tomoaki Ohira
发明人： Tsutomu Niiho , Kouichi Masuda , Masaru Fuse , Fumio Fujisaki , Kuniharu Itakura , Tomoaki Ohira
IPC分类号： G02F1/03
CPC分类号： G02F1/225 , G02F1/0123 , G02F2001/212
摘要： An optical modulator comprises an electrode 21 which applies to an optical waveguides 12 of a Mach-Zehnder type optical interference system a first electric signal based on an alternating current signal S1 and a direct current bias V1, an electrode 22 which applies to an optical waveguide 13 of the Mach-Zehnder type optical interference system a second electric signal based on an alternating current signal S2 and a direct current bias V2, and a bias setting section 41 which sets average direct current levels of the first and second electric signals based on signal frequency information D1 which indicates a magnitude relation between a maximum frequency of the alternating current signal S1 and a maximum frequency of the alternating current signal S2.
摘要翻译：光调制器包括电极21，电极21基于交流电信号S1和直流偏压V 1施加马赫 - 策德尔型光学干涉系统的光波导12，第一电信号适用于马赫曾德尔型光学干涉系统的光波导13基于交流信号S 2和直流偏压V 2的第二电信号，以及偏置设定部41，其设定第一和第二电气的平均直流电平基于表示交流信号S 1的最大频率与交流信号S2的最大频率之间的大小关系的信号频率信息D 1的信号。

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