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    • 4. 发明授权
    • Inter-network connecting system
    • 互联网连接系统
    • US5185741A
    • 1993-02-09
    • US640437
    • 1991-01-30
    • Kazuo IguchiHiroshi TakeoShigeo AmemiyaKoji Tezuka
    • Kazuo IguchiHiroshi TakeoShigeo AmemiyaKoji Tezuka
    • H04M3/24H04Q11/04
    • H04Q11/0428H04M3/245H04Q11/0471
    • An inter-network connecting system comprising a main network having an exchange function and a subnetwork having no exchange function, to improve the expandability, economy, and efficiency of the subnetwork. When an extension line communication which is a communication in the subnetwork is to be carried out, a call setting processing processor in the main network gives a calling terminal a first special signal so as to operate lookback means in a connection control unit in the subnetwork to set a physical communication paths for an extension line between terminals in the subnetwork; and when an outer line communication which is a communication between the main network and a terminal in the subnetwork is to be carried out, the call setting processing processor gives a calling terminal a second signal so as to stop the operation of the loopback means in the connection control unit to set a physical communication path for an outer line between the exchange and the terminal in the subnetwork.
    • PCT No.PCT / JP90 / 00706 Sec。 371日期1991年1月30日 102(e)1991年1月30日PCT PCT 1990年5月30日PCT公布。 出版物WO90 / 15510 日期1990年12月13日。一种网络连接系统,包括具有交换功能的主网络和不具有交换功能的子网,以提高子网的可扩展性,经济性和效率。 当要执行作为子网中的通信的分机线通信时,主网络中的呼叫设置处理处理器向主叫终端提供第一特殊信号,以便在子网中的连接控制单元中操作回溯装置 为子网中终端之间的延伸线设置物理通信路径; 并且当要执行作为主网络和子网中的终端之间的通信的外线通信时,呼叫设置处理处理器向主叫终端提供第二信号,以便停止在该网络中的环回装置的操作 连接控制单元,用于设置子网中交换机和终端之间的外线的物理通信路径。
    • 5. 发明授权
    • Multiple access system for communication network
    • 用于通信网络的多址系统
    • US5539743A
    • 1996-07-23
    • US700166
    • 1991-05-17
    • Shigeo AmemiyaHiroshi TakeoKoji TezukaKazuo Iguchi
    • Shigeo AmemiyaHiroshi TakeoKoji TezukaKazuo Iguchi
    • H04L12/403H04J3/02
    • H04L12/403
    • In a multiple access system for a communication network in which a main station (M) is coupled to a plurality of sub stations (S1-Sn) via lines, each sub station (S1-Sn) comprises a data buffer (1) for storing data (DATA-TE) which is to be transmitted, and a request information forming part (2) for sending to the main station (M) transmission request information (REQ) which includes reservation information obtained based on a data quantity (IN) stored within the data buffer, and the main station (M) comprises a control part (5) for forming a time table (3) of a data transmission reservation time and a corresponding sub station number based on the reservation information included in the transmission request information from each sub station and for giving authority to transmit data to each sub station by transmitting a data transmission enable signal (TENO) to each sub station depending on the data transmission reservation time and the sub station number of the time table.
    • PCT No.PCT / JP90 / 01183 Sec。 371日期1991年5月17日 102(e)日期1991年5月17日PCT 1990年9月17日PCT PCT。 公开号WO91 / 04623 日期:1991年04月4日,在通过线路将主站(M)与多个子站(S1-Sn)连接的通信网络的多址系统中,每个子站(S1-Sn)包括数据缓冲器 (1),用于存储要发送的数据(DATA-TE)以及用于向主站(M)发送包括根据数据获得的预约信息的发送请求信息(REQ)的请求信息形成部分(2) 数量(IN)存储在数据缓冲器中,主站(M)包括用于形成数据传输预约时间的时间表(3)的控制部分(5)和基于包括的预约信息的对应的子站号 在来自每个子站的发送请求信息中,并且通过根据数据传输预约时间和时间标签的子站号码向每个子站发送数据发送使能信号(TENO)来授权向每个子站发送数据 le。
    • 6. 发明授权
    • Communication system carrying out polling for request and data
simultaneously and in parallel
    • 通信系统同时进行并发查询请求和数据
    • US5166675A
    • 1992-11-24
    • US726637
    • 1991-07-02
    • Shigeo AmemiyaKoji TezukaTomohiro ShinomiyaHiroshi TakeoTetsuo SoejimaKazuo Iguchi
    • Shigeo AmemiyaKoji TezukaTomohiro ShinomiyaHiroshi TakeoTetsuo SoejimaKazuo Iguchi
    • H04L12/403
    • H04L12/40143H04L12/403
    • A communication system containing a master station and a plurality of slave stations. The master station receives a request from one of the plurality of slave stations and memorizes one or more requests from one or more slave stations. The master station also sends a request sending allowance signal which addresses one of the plurality of slave stations to give an allowance to send a request for sending data, and sends a data sending allowance signal which addresses one of the plurality of slave stations to give an allowance to send data, according to a request which is memorized. Each of the slave stations detects a request sending allowance signal which addresses its own slave station, and a data sending allowance signal which addresses its own slave station. Each of the slave stations also sends a request for sending data to the master station when its own slave station detects a request sending allowance signal which addresses its own slave station. In addition, each slave station sends data to the master station when its own slave station detects a data sending allowance signal which addresses its own slave station.
    • 一种包含主站和多个从站的通信系统。 主站接收来自多个从站中的一个的请求,并存储来自一个或多个从站的一个或多个请求。 主站还发送请求发送允许信号,该请求发送允许信号寻址多个从站中的一个从站给发送请求发送数据的余地,并且发送寻址多个从站中的一个从站的数据发送允许信号,以给出 根据要记录的要求发送数据。 每个从站检测到寻址其自己的从站的请求发送允许信号,以及寻址其自己的从站的数据发送允许信号。 当其自己的从站检测到寻址其自己的从站的请求发送允许信号时,每个从站还发送向主站发送数据的请求。 另外,每个从站在其自己的从站检测到寻址其自己的从站的数据发送允许信号时,向主站发送数据。
    • 9. 发明授权
    • Method for the production of polytetramethylene ether glycol
    • 生产聚四亚甲基醚二醇的方法
    • US5393866A
    • 1995-02-28
    • US149779
    • 1993-11-10
    • Nobuyuki MuraiMasayuki ShiratoHiroshi TakeoHidetoshi Tanaka
    • Nobuyuki MuraiMasayuki ShiratoHiroshi TakeoHidetoshi Tanaka
    • C08G65/20C08G65/26C08G65/324C08G59/68C07C43/02C08G65/04
    • C08G65/20C08G65/2678C08G65/2684C08G65/324
    • A method for the production of polytetramethylene ether glycol wherein polymerization of tetrahydrofuran in the presence of fluorosulfonic acid is followed by hydrolysis of the resulting polymer, characterized by(1) using the fluorosulfonic acid at 0.007-0.3 molar equivalents with respect to the tetrahydrofuran;(2) using in combination therewith fuming sulfuric acid which contains free sulfur trioxide at 0.05-1.0 molar equivalent with respect to the fluorosulfonic acid; and(3) adding said fuming sulfuric acid to the tetrahydrofuran prior to adding the fluorosulfonic acid thereto.According to the method, high quality polytetramethylene ether glycol with a low fluorine content may be obtained at a high yield without lowering the polymerization temperature. For example, PTMG may be obtained with 3 or fewer, and preferably 2 or fewer terminal fluorines per 2,000 termini of the resulting PTMG. As a result, when the resulting PTMG is used as a starting material for elastomers, it is possible to easily obtain a high molecular weight polymer with excellent heat resistance.
    • 一种生产聚四亚甲基醚二醇的方法,其中在氟磺酸存在下聚合四氢呋喃,然后水解所得聚合物,其特征在于(1)使用相对于四氢呋喃0.007-0.3摩尔当量的氟磺酸; (2)与含有相对于氟磺酸的0.05-1.0摩尔当量的游离三氧化硫的发烟硫酸组合使用; 和(3)在向其中加入氟磺酸之前将所述发烟硫酸加入到四氢呋喃中。 根据该方法,可以在不降低聚合温度的情况下以高产率获得低含氟量的高品质聚四亚甲基醚二醇。 例如,PTMG可以获得3个以下,优选2个以下的末端荧光,每2 000个终点产生的PTMG。 结果,当所得到的PTMG用作弹性体的起始材料时,可以容易地获得具有优异耐热性的高分子量聚合物。