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

US06973103B2 Communication system and communication control method 失效
标题翻译：通信系统和通信控制方法
公开(公告)号：US06973103B2
公开(公告)日：2005-12-06
申请号：US10252493
申请日：2002-09-23
申请人： Shunsuke Hayashi , Hideo Matsukawa , Toyoaki Yokoi
发明人： Shunsuke Hayashi , Hideo Matsukawa , Toyoaki Yokoi
IPC分类号： G06F11/16 , H04L12/40 , H04J3/06 , H04L7/00
CPC分类号： H04L12/403 , G06F11/1625 , H04L12/40182 , H04L12/4625
摘要： A communication control system and method comprising, in one embodiment, a plurality of strobe signals are generated at different timings in a transmission circuit and a plurality of latch circuits equal to the number of strobe signals are provided in a receiver circuit so that data is retained in each latch circuit using the strobe signals one at a time.
摘要翻译：一种通信控制系统和方法，在一个实施例中，在传输电路中以不同的定时产生多个选通信号，并且在接收机电路中提供等于选通信号数量的多个锁存电路，以便保留数据在每个锁存电路中使用一次一个选通信号。

2. 发明授权

US5390132A Distributed control system having a control unit to detect and control interruption of transmission to and from remote input/output devices 失效
标题翻译：分布式控制系统具有控制单元，用于检测和控制来自远程输入/输出设备的传输中断
公开(公告)号：US5390132A
公开(公告)日：1995-02-14
申请号：US981378
申请日：1992-11-25
申请人： Yasuhiko Shioe , Chuji Akiyama , Toshiaki Shirai , Hideyuki Sakamoto , Hitoshi Yasui , Makio Ishikawa , Hideo Matsukawa
发明人： Yasuhiko Shioe , Chuji Akiyama , Toshiaki Shirai , Hideyuki Sakamoto , Hitoshi Yasui , Makio Ishikawa , Hideo Matsukawa
IPC分类号： G05B19/042 , G06F11/00 , G06F11/14 , G06K15/00
CPC分类号： G06F11/0757 , G05B19/0428 , G06F11/1417
摘要： A distributed control system comprising a control station and a remote input/output device interconnected by a bus, wherein the system is provided with a continuation transmission service which first transmits an urgent output only and then performs cyclic scan transmission; an initialization start transmission service which first performs cyclic scan transmission for input only; an interruption duration measuring feature which measures the period of transmission interruption; and a control feature which activates the continuation transmission service when the result of the measurement is shorter than a predetermined period of time, and which activates the initialization start transmission service when the result of the measurement is longer than the predetermined period of time. Thus, for example, after a power supply failure, the system can rapidly recover and shift to normal process controlling operation without the delays normally experienced by prior control systems.
摘要翻译：一种分布式控制系统，包括控制站和通过总线互连的远程输入/输出设备，其中系统设置有继续传输服务，其首先发送紧急输出，然后执行循环扫描传输; 初始化开始传输服务，其首先执行用于输入的循环扫描传输; 测量传输中断周期的中断持续时间测量特征; 以及当测量结果短于预定时间段时激活连续传输服务的控制特征，并且当测量结果长于预定时间段时激活初始化开始传输服务。因此，例如，在电源故障之后，系统可以快速恢复并转移到正常的过程控制操作，而不会由现有控制系统通常遇到的延迟。

3. 发明授权

US06556583B1 Communication system and communication control method 失效
标题翻译：通信系统和通信控制方法
公开(公告)号：US06556583B1
公开(公告)日：2003-04-29
申请号：US09255427
申请日：1999-02-22
申请人： Shunsuke Hayashi , Hideo Matsukawa , Toyoaki Yokoi
发明人： Shunsuke Hayashi , Hideo Matsukawa , Toyoaki Yokoi
IPC分类号： H04L1266
CPC分类号： H04L12/403 , G06F11/1625 , H04L12/40182 , H04L12/4625
摘要： A communication control system and method comprising, in one embodiment, a master station connected to a slave station using two redundant buses, wherein command frames having the same content are sent out to the buses and the communication process is changed depending on whether or not the contents of the command frames, when received by the a receiving station, are identical. In another embodiment, a plurality of units are connected to each bus in a multi-drop configuration, and a line length of each bus is defined so that reflected signals from other units reach a receiving unit on each bus after the transition period of a received signal at that receiving unit ends. In still another embodiment, a unit is connected to each bus and the unit is provided with a driver IC, wherein transmission data is first encoded into bit signals having a fixed number of bits, then the signals are supplied to the driver IC. In a further embodiment, a plurality of strobe signals are generated at different timings in a transmission circuit and a plurality of latch circuits equal to the number of strobe signals are provided in a receiver circuit so that data is retained in each latch circuit using the strobe signals one at a time. In a still further embodiment, an arbitration procedure is carried out using an arbitration bus when a bus master desires to use a data bus immediately after using the data bus, wherein it is determined whether arbitration has been carried out using the arbitration bus, and if none has been carried out, the arbitration procedure is omitted and the bus master is allowed to aquire the right to again use the data bus.
摘要翻译：一种通信控制系统和方法，在一个实施例中，包括使用两个冗余总线连接到从站的主站，其中具有相同内容的命令帧被发送到总线，并且通信过程根据是否改变当接收站接收到命令帧的内容是相同的。在另一个实施例中，多个单元以多点配置连接到每个总线，并且每个总线的线路长度被定义成使得来自其它单元的反射信号在接收到的过渡时段之后到达每个总线上的接收单元信号在接收单元结束。在另一个实施例中，单元连接到每个总线，并且该单元设置有驱动器IC，其中传输数据首先被编码为具有固定位数的位信号，然后将信号提供给驱动器IC。在另一实施例中，在传输电路中以不同的定时产生多个选通信号，并且在接收机电路中提供等于选通信号数量的多个锁存电路，以便数据被保留在每个锁存电路中，使用频闪一次发出一个信号。在又一个实施例中，当总线主机在使用数据总线之后立即使用数据总线时，使用仲裁总线执行仲裁程序，其中确定是否已经使用仲裁总线进行仲裁，以及如果没有一个被执行，仲裁程序被省略，总线主机被允许再次使用数据总线。

4. 发明授权

US06952404B2 Communication system and communication control method 失效
标题翻译：通信系统和通信控制方法
公开(公告)号：US06952404B2
公开(公告)日：2005-10-04
申请号：US10287766
申请日：2002-11-04
申请人： Shunsuke Hayashi , Hideo Matsukawa , Toyoaki Yokoi
发明人： Shunsuke Hayashi , Hideo Matsukawa , Toyoaki Yokoi
IPC分类号： G06F11/16 , H04L12/40 , G06F11/00
CPC分类号： H04L12/403 , G06F11/1625 , H04L12/40182 , H04L12/4625
摘要： A communication control system and method comprising, in one embodiment, a master station connected to a slave station using two redundant buses, wherein command frames having the same content are sent out to the buses and the communication process is changed depending on whether or not the contents of the command frames, when received by the receiving station, are identical.
摘要翻译：一种通信控制系统和方法，在一个实施例中，包括使用两个冗余总线连接到从站的主站，其中具有相同内容的命令帧被发送到总线，并且通信过程根据是否改变当接收站接收到命令帧的内容是相同的。

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