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1. 发明授权

US07058062B2 Packet switching system having self-routing switches 失效
公开(公告)号：US07058062B2
公开(公告)日：2006-06-06
申请号：US10040466
申请日：2002-01-09
申请人： Shirou Tanabe , Taihei Suzuki , Shinobu Gohara , Yoshito Sakurai , Kenichi Ohtsuki , Takao Kato , Hiroshi Kuwahara , Eiichi Amada
发明人： Shirou Tanabe , Taihei Suzuki , Shinobu Gohara , Yoshito Sakurai , Kenichi Ohtsuki , Takao Kato , Hiroshi Kuwahara , Eiichi Amada
IPC分类号： H04L12/56
CPC分类号： H04Q11/0421 , H04L12/5601 , H04L12/6402 , H04L49/1553 , H04L49/25 , H04L49/254 , H04L49/255 , H04L49/256 , H04L49/3009 , H04L49/3081 , H04L49/309 , H04L2012/5652 , H04L2012/5672 , H04L2012/6481 , H04Q11/0407 , H04Q2213/13104 , H04Q2213/13106 , H04Q2213/13141 , H04Q2213/13176 , H04Q2213/13204 , H04Q2213/13209 , H04Q2213/13216 , H04Q2213/1329 , H04Q2213/13292 , H04Q2213/13332 , H04Q2213/13352 , H04Q2213/13399
摘要： A packet switching system including at least one switching node or local unit each including a label conversion unit for accommodating a plurality of packet circuits and performing conversion into output port information of a switch based on a logic channel on a packet circuit, a self-routing switch for performing switching based on the output port information, and a control unit for terminating a control packet and performing the call processing function. A switching node or tandem unit is provided including at least one self-routing switch for interconnecting the local units. A device is provided for setting, between the tandem unit and a destination-side local unit, the same logic channel as that between an originating-side local unit operative for information transfer and the tandem unit in respect of a call destined for a local unit other than this local unit and a device.

2. 发明授权

US06256509B1 Broadcast information delivering system 失效
标题翻译：广播信息传递系统
公开(公告)号：US06256509B1
公开(公告)日：2001-07-03
申请号：US09268649
申请日：1999-03-16
申请人： Satoshi Tanaka , Eiichi Amada , Seiki Mizutani
发明人： Satoshi Tanaka , Eiichi Amada , Seiki Mizutani
IPC分类号： H04B7005
CPC分类号： H04W72/005 , H04L1/0066 , H04L1/0071 , H04W88/08
摘要： A broadcast information delivering system which includes a plurality of wireless terminals and a wireless base station having a transmitter for transmitting broadcast control information to a control channel, and a transmitter for transmitting a broadcast frame to a broadcast channel in accordance with a transmission condition defined in the broadcast control information. The broadcast frame includes a plurality of sub-frames containing different contents information to each other and a frame header including guidance information of the contents information. Each of the wireless terminals includes a receiver for receiving the control information from the control channel, and a receiver for receiving the broadcast frame from the broadcast channel based on the broadcast control information and selectively receiving the contents information in a specific one of said sub-frames in accordance with the guidance information of the broadcast frame.
摘要翻译：一种包括多个无线终端的广播信息传送系统和具有用于向控制信道发送广播控制信息的发射机的无线基站，以及根据定义的传输条件向广播信道发送广播帧的发射机广播控制信息。广播帧包括彼此不同的内容信息的多个子帧以及包含内容信息的引导信息的帧头。每个无线终端包括用于从控制信道接收控制信息的接收机和用于基于广播控制信息从广播信道接收广播帧的接收机，并且选择性地接收所述子频道中的特定一个中的内容信息，根据广播帧的指导信息进行帧。

3. 发明授权

US6061389A Frequency-hopping communication system and communication station 失效
标题翻译：跳频通信系统和通信站
公开(公告)号：US6061389A
公开(公告)日：2000-05-09
申请号：US203373
申请日：1994-03-01
申请人： Tomoaki Ishifuji , Eiichi Amada , Yoshihiro Takiyasu , Genichi Ishii , Hidehiko Jusa , Shuichi Adachi
发明人： Tomoaki Ishifuji , Eiichi Amada , Yoshihiro Takiyasu , Genichi Ishii , Hidehiko Jusa , Shuichi Adachi
IPC分类号： H04B1/7143 , H04J13/00 , H04W28/04 , H04W76/02 , H04B1/713
CPC分类号： H04B1/7136 , H04B1/713 , H04B1/7156 , H04B2001/71365 , H04B2001/71566
摘要： A frequency hopping communication system having a plurality of wireless mobile stations and at least one base station. Each wireless mobile station is operated to communicate according to a communication frame format generated by a base station. The system performing slow frequency hopping by keeping a frequency hopping interval within each frame. The hopping pattern of a frequency is designated at a field located at the tail of each communication frame by the base station.
摘要翻译：一种具有多个无线移动站和至少一个基站的跳频通信系统。每个无线移动站被操作以根据由基站产生的通信帧格式进行通信。该系统通过在每个帧内保持跳频间隔来执行慢跳频。在基站的每个通信帧的尾部的场指定频率的跳频模式。

4. 发明授权

US5414739A Transmission system constituted of multistage reproduction nodes 失效
标题翻译：传输系统由多级再现节点组成
公开(公告)号：US5414739A
公开(公告)日：1995-05-09
申请号：US974992
申请日：1992-11-12
申请人： Naoya Kobayashi , Yoshitaka Takasaki , Sadao Mizokawa , Hisayuki Maruyama , Hiroshi Mabuchi , Eiichi Amada
发明人： Naoya Kobayashi , Yoshitaka Takasaki , Sadao Mizokawa , Hisayuki Maruyama , Hiroshi Mabuchi , Eiichi Amada
IPC分类号： H04L7/00 , H04L7/027 , H04L7/033 , H04L25/36 , H04L25/40
CPC分类号： H04L7/00 , H04L7/027 , H04L7/033
摘要： A transmission system which includes a plurality of reproduction nodes connected to each other in a cascade connection via a communication line. Each node includes a timing extraction circuit for extracting a timing signal from a signal received via the communication line, a discriminating circuit for converting the received signal into a digital signal according to the timing signal, and a processing circuit for processing, based on the timing signal, the digital signal outputted from the discriminating circuit and outputting the processed digital signal to the communication line. The timing extraction circuit includes a signal delay unit for supplying the timing signal with a signal delay time greater than a delay time occurring in the processing circuit.
摘要翻译：一种传输系统，包括经由通信线路以级联方式彼此连接的多个再现节点。每个节点包括定时提取电路，用于从经由通信线路接收的信号中提取定时信号;判别电路，用于根据定时信号将接收信号转换成数字信号;以及处理电路，信号，从识别电路输出的数字信号并将经处理的数字信号输出到通信线路。定时提取电路包括用于向定时信号提供大于在处理电路中出现的延迟时间的信号延迟时间的信号延迟单元。

5. 发明授权

US5184346A Switching system 失效
标题翻译：开关系统
公开(公告)号：US5184346A
公开(公告)日：1993-02-02
申请号：US526381
申请日：1990-05-21
申请人： Takahiko Kozaki , Kenichi Asano , Mineo Ogino , Eiichi Amada , Noboru Endo , Yoshito Sakurai
发明人： Takahiko Kozaki , Kenichi Asano , Mineo Ogino , Eiichi Amada , Noboru Endo , Yoshito Sakurai
IPC分类号： H04L12/931
CPC分类号： H04L12/5601 , H04L2012/5672
摘要： A switching system exchanges communication information as fixed length cells between a plurality of incoming and outgoing highways. The fixed length cells each have a plurality of data portions with one data portion designated as a header portion for containing switching information. An address generating circuit generates read addresses and write addresses in response to the header portion of each cell and a control circuit. The plurality of cells from the incoming highways are simultaneously rotated in a rotation matrix with each of the cell's data portions rotated to a unique internal path. The data portions are then transmitted to identical write addresses in a plurality of memories via delay circuitry. The write addresses are transmitted through shift registers to the plurality of memories to allow the data portions of a single cell to occupy identical addresses within a plurality of memories. The control circuitry determines the correct outgoing highway for each cell based upon information contained within the header portion of each cell or a routing table. The data portions are then read out of read addresses in the plurality of memories and rotated by another rotation matrix. The rotated data portions reform the fixed length cell along a determined outgoing highway.
摘要翻译：交换系统将通信信息交换为多个入站和出站高速公路之间的固定长度小区。固定长度单元各自具有多个数据部分，其中一个数据部分被指定为用于包含切换信息的报头部分。地址产生电路响应每个单元的头部部分和控制电路产生读地址和写地址。来自输入高速公路的多个单元同时以旋转矩阵旋转，其中每个单元的数据部分旋转到独特的内部路径。然后，经由延迟电路将数据部分发送到多个存储器中相同的写入地址。写入地址通过移位寄存器发送到多个存储器，以允许单个单元的数据部分在多个存储器内占据相同的地址。控制电路基于每个小区的头部部分或路由表中包含的信息来确定每个小区的正确输出高速公路。然后，数据部分从多个存储器中的读取地址读出并被另一个旋转矩阵旋转。旋转的数据部分沿着确定的输出高速公路改变固定长度的单元。

6. 发明授权

US5091905A High-speed packet switching using a space division optical switch 失效
标题翻译：使用空间分光学开关的高速分组开关
公开(公告)号：US5091905A
公开(公告)日：1992-02-25
申请号：US616811
申请日：1990-11-16
申请人： Eiichi Amada
发明人： Eiichi Amada
IPC分类号： H04L12/70 , H04L12/931
CPC分类号： H04L49/357 , H04L49/205 , H04L49/254 , H04L49/3018 , H04L49/40
摘要： The packet switching apparatus comprises input buffers for respective input ports; a space division optical switch for transferring packets from the input buffers to a desired output port; and a controller for controlling the switching on the basis of the header information of the packets. The controller analyzes the header of the packets from each input port to determine outputtable packets so that these outputtable packets are outputted all at once after the connection of the switch has been controlled. By repeating this process, the packets are continuously switched.
摘要翻译：分组交换装置包括用于相应输入端口的输入缓冲器; 用于将分组从输入缓冲器传送到期望的输出端口的空分光开关; 以及控制器，用于基于分组的报头信息来控制切换。控制器分析来自每个输入端口的报头的头部，以确定可输出的分组，以便在交换机的连接被控制之后，这些可输出的分组被一次输出。通过重复该过程，数据包被连续地切换。

7. 发明授权

US4665507A Semiconductor memory having load devices controlled by a write signal 失效
标题翻译：具有由写信号控制的负载装置的半导体存储器
公开(公告)号：US4665507A
公开(公告)日：1987-05-12
申请号：US724765
申请日：1985-04-18
申请人： Takafumi Gondou , Eiichi Amada , Kenichi Asano
发明人： Takafumi Gondou , Eiichi Amada , Kenichi Asano
IPC分类号： G11C11/419 , G11C7/00
CPC分类号： G11C11/419
摘要： To reduce the power dissipation of a static random access memory, a write enable signal is applied to the gates of load MOS transistors on bit lines which are connected to a memory cell. During the write-in time, the load MOS transistors are turned off so as to prevent as electric current from flowing from a power source into the earth through the memory cell.
摘要翻译：为了降低静态随机存取存储器的功耗，写入使能信号被施加到连接到存储单元的位线上的负载MOS晶体管的栅极。在写入时间期间，负载MOS晶体管截止，以防止电流从电源通过存储单元流入地球。

8. 发明授权

US4305133A Recursive type digital filter 失效
标题翻译：递归式数字滤波器
公开(公告)号：US4305133A
公开(公告)日：1981-12-08
申请号：US94915
申请日：1979-11-16
申请人： Eiichi Amada , Makoto Ohnishi , Hiroshi Kuwahara
发明人： Eiichi Amada , Makoto Ohnishi , Hiroshi Kuwahara
IPC分类号： H03H17/00 , H03H17/04 , G06F15/31 , G06F7/48
CPC分类号： H03H17/0405 , H03H17/0461
摘要： A recursive type digital filter receiving a digital input signal x(n) having a plurality of bits and delivering a ditial output signal y(n) satisfying the following equation, ##EQU1## where n indicates a natural number, M and N orders of time lag in the signal transference, a.sub.k and b.sub.k coefficients defined by a filter characteristic, a.sub.M and b.sub.N b being coefficients which are not equal to zero, comprises an output control circuit for delivering a digital signal indicating a positive or negative limit value in place of the digital output signal y(n) when the amplitude of the signal y(n) exceeds an allowable value. In combination with this output control circuit, the filter also utilizes a feedback signal for calculation purposes which feedback signal has its amplitude reduced from that of y(n) by a predetermined ratio. Further, an arrangement is provided for clearing registers of filter when necessary to prevent overflow oscillation.
摘要翻译：接收具有多个位的数字输入信号x（n）的递归型数字滤波器，并输出满足以下等式的初始输出信号y（n），其中n表示自然数，M和N个时间顺序信号传输滞后，由滤波器特性aM和bN b定义的ak和bk系数是不等于零的系数，包括输出控制电路，用于传送指示正或负极限值的数字信号代替数字输出信号y（n），当信号y（n）的振幅超过允许值时。与该输出控制电路相结合，滤波器还利用反馈信号进行计算，将反馈信号的幅度从y（n）的幅度减小预定比例。此外，为了防止溢出振荡，需要设置清除滤波器的寄存器的结构。

9. 发明授权

US06304570B1 Distributed type switching system 失效
标题翻译：分布式交换系统
公开(公告)号：US06304570B1
公开(公告)日：2001-10-16
申请号：US09373596
申请日：1999-08-13
申请人： Yoshito Sakurai , Shinobu Gohara , Kenichi Ohtsuki , Takao Kato , Hiroshi Kuwahara , Eiichi Amada
发明人： Yoshito Sakurai , Shinobu Gohara , Kenichi Ohtsuki , Takao Kato , Hiroshi Kuwahara , Eiichi Amada
IPC分类号： H04Q1104
CPC分类号： H04L49/30 , H04J2203/0012 , H04L12/56 , H04L12/5601 , H04L12/6402 , H04L49/101 , H04L49/106 , H04L49/15 , H04L49/1553 , H04L49/1584 , H04L49/205 , H04L49/25 , H04L49/254 , H04L49/255 , H04L49/256 , H04L49/3009 , H04L49/3018 , H04L49/3081 , H04L49/309 , H04L49/35 , H04L2012/5651 , H04L2012/5652 , H04L2012/5681 , H04L2012/6481 , H04Q11/0407 , H04Q11/0421 , H04Q11/06
摘要： A switching system for integratedly switching voice, data, image information and the like. The switching system comprises a plurality of front-end modules each adapted to perform a switching processing in association with a subscriber line or a trunk line, and a single or a plurality of central modules for interconnecting the plurality of front-end modules in star-type fashion and switching information prevailing between the front-end modules, in unit of block accommodating the information and a header added thereto to contain connection control information and in accordance with the contents of the header. The front-end modules are connected to the central module via inter-module highways each having frames occurring at a predetrmined period and time slots contained in each frame to carry blocks.
摘要翻译：一种用于集成地切换语音，数据，图像信息等的切换系统。交换系统包括多个前端模块，每个前端模块适于与用户线路或中继线路相关联地执行切换处理;以及单个或多个中央模块，用于以星形模式互连多个前端模块，在前端模块之间存在的类型时尚和切换信息，以容纳信息的块为单位，以及添加到其中的标题，以包含连接控制信息并根据报头的内容。前端模块通过模块间高速公路连接到中央模块，每个模块都具有在预定周期内发生的帧，并且包含在每个帧中的时隙以承载块。

10. 发明授权

US5862142A Frequency hopping wireless communication system and communication equipment 失效
标题翻译：跳频无线通信系统和通信设备
公开(公告)号：US5862142A
公开(公告)日：1999-01-19
申请号：US461527
申请日：1995-06-05
申请人： Yoshihiro Takiyasu , Eiichi Amada , Tomoaki Ishifuji , Genichi Ishii , Hidehiko Jusa , Shuichi Adachi
发明人： Yoshihiro Takiyasu , Eiichi Amada , Tomoaki Ishifuji , Genichi Ishii , Hidehiko Jusa , Shuichi Adachi
IPC分类号： H04L12/28 , H04W16/02 , H04W84/12 , H04W92/20 , H04J1/00
CPC分类号： H04B1/7156 , H04B2001/71566 , H04W92/20
摘要： In a wireless communication system having a plurality of base stations connected through a control line and a plurality of mobile terminals, one of base stations (a master base station) informs a carrier frequency hop timing to the other base stations (slave base stations) through the control line. Each slave base station generates a wireless communication frame used inside of each cell and switches the carrier frequency of the wireless communication frame in synchronous to the timing indicated by the master base station. Each movable terminal receives an identifier of a frequency hopping sequence from a control information field of the wireless communication frame, hops to one carrier frequency selected among a frequency hopping sequence corresponding to this identifier, and transmit or receive the data through the field following the control information field of the wireless communication frame.
摘要翻译：在具有通过控制线和多个移动终端连接的多个基站的无线通信系统中，基站（主基站）中的一个基站通过载波频率到其他基站（从基站）的定时到达基站控制线。每个从基站产生在每个小区内部使用的无线通信帧，并与主基站指示的定时同步地切换无线通信帧的载波频率。每个可移动终端从无线通信帧的控制信息字段接收跳频序列的标识符，跳到与该标识符相对应的跳频序列中选择的一个载波频率，并通过控制之后的字段发送或接收数据无线通信帧的信息字段。

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