公开(公告)号：US20020039033A1

公开(公告)日：2002-04-04

申请号：US09854094

申请日：2001-05-11

发明人： Ivan E. Sutherland ,  Josephus C. Ebergen

IPC分类号： H03K019/094

CPC分类号： G05B19/045 ,  G05B2219/23289 ,  G05B2219/25263 ,  G05B2219/25306

摘要： One embodiment of the present invention provides a system that asynchronously distributes data to a plurality of destinations within a digital circuit. Upon receiving a data item to be distributed, the system monitors asynchronous control signals associated with the destinations, wherein a given asynchronous control signal indicates that a given destination is free to receive the data item. For each destination that is free to receive the data item, the system forwards the data item to the destination asynchronously without waiting for a system clock signal, and also changes an asynchronous control signal associated with the destination to indicate that the destination is not free to receive a subsequent data item.

摘要翻译： 本发明的一个实施例提供一种将数据异步分配到数字电路内的多个目的地的系统。 在接收到要分发的数据项时，系统监视与目的地相关联的异步控制信号，其中给定的异步控制信号指示给定的目的地可以自由地接收数据项。 对于可以自由接收数据项的每个目的地，系统异步地将数据项转发到目的地，而不用等待系统时钟信号，并且还改变与目的地相关联的异步控制信号，以指示目的地不是空闲的 接收后续数据项。

公开(公告)号：US3766550A

公开(公告)日：1973-10-16

申请号：US3766550D

申请日：1971-03-04

申请人： BLISS CO

发明人： VANDEMORE J ,  HENRY D

IPC分类号： B29C45/76 ,  G05B19/07 ,  H01R9/22 ,  H01R9/00

CPC分类号： B29C45/76 ,  G05B19/07 ,  G05B2219/25263 ,  G05B2219/25315

摘要： There is provided a process control system including a plurality of functional modules for sequencing a plurality of operations of a machine, such as a plastic molding machine, wherein the functional modules include a static electrical control circuit. The static control circuit is comprised of an input circuit for receiving alternating-current signals; static direct-current logic means for performing an electrical function and then providing a direct-current output signal; static direct current to alternating current converter means, such as a triac switching circuit, coupled to the logic means for providing an alternatingcurrent output signal from the direct-current signal; and, actuatable means such as a solenoid controlled valve, coupled to the converter means, for upon energization, providing at least one of the plurality of machine operations.

摘要翻译： 提供了一种过程控制系统，其包括用于对诸如塑料成型机的机器的多个操作进行排序的多个功能模块，其中功能模块包括静态电气控制电路。 静态控制电路包括用于接收交流信号的输入电路; 静态直流逻辑装置，用于执行电功能，然后提供直流输出信号; 连接到用于从直流信号提供交流输出信号的逻辑装置的诸如三端双向可控硅开关电路的交流电转换器装置的静态直流电流; 以及耦合到转换器装置的诸如电磁阀的可致动装置，用于在通电时提供多个机器操作中的至少一个。

公开(公告)号：US06420907B1

公开(公告)日：2002-07-16

申请号：US09676430

申请日：2000-09-29

申请人： Ivan E. Sutherland ,  Scott M. Fairbanks ,  Josephus C. Ebergen

发明人： Ivan E. Sutherland ,  Scott M. Fairbanks ,  Josephus C. Ebergen

IPC分类号： H03K19094

CPC分类号： G05B19/045 ,  G05B2219/23289 ,  G05B2219/25263 ,  G05B2219/25306

摘要： One embodiment of the present invention provides a system for asynchronously controlling state information within a circuit. This system includes a first conductor that carries a voltage indicating a state of the circuit, as well as a first drive circuit coupled to the first conductor that is configured to drive the first conductor to a first voltage level to indicate a first state. The system also includes a second drive circuit coupled to the first conductor that is configured to drive the first conductor to a second voltage level to indicate a second state. The system additionally includes a condition input that indicates a condition. The system is configured so that the first drive circuit drives the first conductor to the first voltage level based upon the condition indicated by the condition input. In one embodiment of the present invention, the first drive circuit is additionally configured to drive the first conductor to the first voltage level based upon the state indicated by the voltage carried on the first conductor. In one embodiment of the present invention, the system additionally includes a keeper circuit coupled to the first conductor that is configured to hold the voltage on the first conductor at a stable value, unless the voltage is changed by a drive circuit. In one embodiment of the present invention, the system additionally includes a pulse generation circuit coupled to the first drive circuit, wherein the pulse generation circuit is configured to cause the first drive circuit to drive the first conductor to the first voltage level using a pulse of limited duration.

摘要翻译： 本发明的一个实施例提供一种用于异步地控制电路内的状态信息的系统。 该系统包括承载指示电路的状态的电压的第一导体以及耦合到第一导体的第一驱动电路，其被配置为将第一导体驱动到第一电压电平以指示第一状态。 该系统还包括耦合到第一导体的第二驱动电路，其被配置为将第一导体驱动到第二电压电平以指示第二状态。 该系统还包括指示条件的条件输入。 该系统被配置为使得第一驱动电路基于条件输入指示的条件将第一导体驱动到第一电压电平。 在本发明的一个实施例中，第一驱动电路还被配置为基于由第一导体上承载的电压指示的状态将第一导体驱动到第一电压电平。 在本发明的一个实施例中，系统还包括耦合到第一导体的保持器电路，其被配置为将电压保持在第一导体上的稳定值，除非电压被驱动电路改变。 在本发明的一个实施例中，系统还包括耦合到第一驱动电路的脉冲发生电路，其中脉冲发生电路被配置为使第一驱动电路使用第一驱动电路的脉冲将第一导体驱动到第一电压电平 持续时间有限

公开(公告)号：US06486709B2

公开(公告)日：2002-11-26

申请号：US09854094

申请日：2001-05-11

申请人： Ivan E. Sutherland ,  Josephus C. Ebergen

发明人： Ivan E. Sutherland ,  Josephus C. Ebergen

IPC分类号： H03K1920

CPC分类号： G05B19/045 ,  G05B2219/23289 ,  G05B2219/25263 ,  G05B2219/25306

摘要： One embodiment of the present invention provides a system that asynchronously distributes data to a plurality of destinations within a digital circuit. Upon receiving a data item to be distributed, the system monitors asynchronous control signals associated with the destinations, wherein a given asynchronous control signal indicates that a given destination is free to receive the data item. For each destination that is free to receive the data item, the system forwards the data item to the destination asynchronously without waiting for a system clock signal, and also changes an asynchronous control signal associated with the destination to indicate that the destination is not free to receive a subsequent data item.

公开(公告)号：US3774051A

公开(公告)日：1973-11-20

申请号：US3774051D

申请日：1972-10-30

申请人： GEN EL CO

发明人： CHANDLER R

IPC分类号： H03K19/00 ,  G05B19/07 ,  G06F19/00 ,  H03K19/173 ,  H03K19/12

CPC分类号： G05B19/07 ,  G05B2219/25263 ,  H03K19/173

摘要： Logic circuits adapted to be connected in prescribed configurations are provided to form solid-state logic systems whereby the circuits directly replace and simulate relay coils and contacts to systematically generate signals representative of the operation of relays.

摘要翻译： 提供适于以规定的配置连接的逻辑电路以形成固态逻辑系统，由此电路直接替代和模拟继电器线圈和触点以系统地产生代表继电器的操作的信号。

公开(公告)号：US3621519A

公开(公告)日：1971-11-23

申请号：US3621519D

申请日：1968-09-26

申请人： BLISS CO

发明人： VANDEMORE JAMES J ,  HENRY DONALD E

IPC分类号： B29C45/76 ,  G05B19/07 ,  B29C3/06

CPC分类号： G05B19/07 ,  B29C45/76 ,  G05B2219/25263 ,  G05B2219/25315

摘要： THERE IS PROVIDED A PROCESS CONTROL SYSTEM INCLUDING A PLURALITY OF FUNCTIONAL MODULES FOR SEQUENCING A PLURALITY OF OPERATIONS OF A MACHINE, SUCH AS A PLASTIC MOLDING MACHINE, WHEREIN THE FUNCTIONAL MODULES INCLUDE A STATIC ELECTRICAL CONTROL CIRCUIT. THE STATIC CONTROL CIRCUIT IS COMPRISED OF A N IMPUT CIRCUIT FOR RECEIVING ALTERNATING-CURRENT SIGNALS, STATIC DIRECT-CURRENT LOGIC MEANS FOR PERFORMING AN ELECTRICAL FUNCTION AND THEN PROVIDING A DIRECT-CURRENT OUTPUT SIGNAL, STATIC DIRECT CURRENT TO ALTERNATING CURRENT CONVERTER MEANS, SUCH AS A TRIAC SWITCHING CIRCUIT, COUPLED TO THE LOGIC MEANS FOR PROVIDING AND ALTERNATINGCURRENT OUTPUT SIGNAL FROM THE DIRECT-CURRENT SIGNAL, AND, ACTUATABLE MEANS SUCH AS A SOLENOID CONTROLLED VALVE, COUPLED TO THE CONVERTER MEANS, FOR UPON ENERGIZATION, PROVIDING AT LEAST ONE OF THE PLURALITY OF MACHINE OPERATIONS.