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5263172 Multiple speed synchronous bus having single clock path for providing first or second clock speed based upon speed indication signals  
A computer system which includes a synchronous digital, multibit system bus having a clock path, a master speed indicator path and a slave speed indicator path, a bus control circuit which...
5261092 Synchronizing slave processors through eavesdrop by one on periodic sync-verify messages directed to another followed by comparison of individual status  
Data bases of a first and second input output processor (IOP), which are primary and secondary slave IOPs, respectively, are synchronized, and communications by a master controller is made only to...
5255388 Synchronizing slave processors through eavesdrop by one on a write request message directed to another followed by comparison of individual status request replies  
Data bases of a first and second input output processor (IOP), which are primary and secondary slave IOPs, respectively, are synchronized, and communications by a master controller is made only to...
5249188 Synchronizing two processors as an integral part of fault detection  
A central processing unit arrangement for detecting a fault in a central processing unit system that includes a master processor and a slave processor. Master and slave processors are...
5249140 Electrohydraulic distributed control system with identical master and slave controllers  
A control module adapted for use as either a master controller or device controller in a distributed electrohydraulic system includes a microprocessor-based control circuit with digital memory...
5249138 Analog signal preprocessor  
The specification describes a system for analyzing and processing an input analog signal. This invention provides an analog signal preprocessor which is operated in conjunction with a main...
5225871 Control device for image forming equipment  
A control device incorporated in image forming equipment and having at least a main control unit and a slave control unit. The main and slave control units each has a CPU (Central Processing Unit)...
5222017 Control system to synchronize slave computers  
A multi-operation control system includes a plurality of slave computers each controlling its respective operation and forming at least one operating system. Each slave computer has a memory for...
5209560 Computer controlled lighting system with intelligent data distribution network  
A stage lighting system has a plurality of automated lamp units which can vary the parameters of a light beam for pan, tilt, brightness, intensity and size. A remote console controller system is...
5200564 Digital information processing apparatus with multiple CPUs  
A main CPU and a sub CPU take share of executing a tone generating process to generate multiple tone signals on a real-time basis without using an exclusive tone generator. The main CPU and sub...
5187656 Servomotor drive control system  
According to the servomotor drive control system of the invention, a processing section and a servomotor are arranged at physically separate locations. Data are exchanged via a data bus between a...
5165026 Programmable controller in which fetching of operand data and fetching of operand addresses are simultaneously performed  
A program memory and a data memory are independently arranged, and a holding register is arranged between the program memory and the data memory. The program memory and the holding register, the...
5150288 Production management system and method of transmitting data  
A production management system for controlling a production line such as an automobile assembling line includes a plurality of slave computers for controlling assembling robots in assembling...
5136498 Method for enacting failover of a 1:1 redundant pair of slave processors  
A primary slave IOP, upon detecting an error, verifies the availability of a secondary slave IOP, and then sets an output control signal to indicate backup is requested. The primary slave IOP then...
5136496 Master/slave numerical control apparatus in which the master can identify types and order of the slaves  
In a numerical control apparatus comprising a control unit having a master card and a plurality of slave cards, the master card of the control unit transmits a read address signal code, a card...
5132905 System and method applicable to vehicles for communicating between data processing stations  
A system and method applicable to a vehicle for communicating between data processing stations are disclosed in which successive initializing commands (INIT) are transmitted by a master station...
5128855 Building automation system operating installation control and regulation arrangement  
An arrangement for the control of an operating installation of a building automation system is disclosed. The arrangement comprises a control module serving as a master transmitter-receiver and at...
5072374 Method for communicating among a plurality of programmable logic controllers each having a DMA controller  
A method is provided for communicating among a plurality of programmable logic controllers (PLC's) coupled together on a common bus. A master PLC and a plurality of slave PLC's are coupled to the...
5053964 On-board integrated vehicle control and communication system  
A train comprising a plurality of interconnected revenue carrying vehicles is provided. Each of the vehicles includes a controller for controlling the various sub-systems in the vehicle. When the...
5021938 Transmission system with backup function  
A transmission system having slave stations for processing data received from the master station and generating system common data, a particular slave station is provided to backup the master...
5019960 Master-slave signal transfer system for elevator  
A signal transfer system for an elevator including a master station and a plurality of slave stations, each slave station having provision for generating call signals and illuminating a call...
5014230 Solid-modeling system using topology directed subdivision for determination of surface intersections  
A system for topology directed subdivision of a pair of surfaces to identify intersecting portions thereof includes the steps of obtaining a pair of surfaces from a main pool of surface...
4977494 High speed digital motion controller architecture  
A system bus (13) carrying multidimensional path data interfaces with a plurality of local microprocessors (24), one for each dimension, through a plurality of dual access memory structures (21),...
4972463 In-store multiple device communications unit and centralized data system utilizing same  
In a store data communications system, multiple data sources having disparate communications standards are connected with respective device interfaces of a multiple device communications...
4961131 Programmable controller  
A programmable controller includes a master CPU for processing data in accordance with a predetermined program including a prescribed sequence of operating steps, a plurality of operating devices...
4955305 Modular system for use with X-Y peripherals  
A modular system for use with X-Y peripherals is provided. The system includes a master controller operatively connected to one or more slave X-Y peripherals in a network. Different types of slave...
4953074 Function-distributed control apparatus  
A function-distributed control apparatus comprises a first bus, a second bus, and at least one base processor element which includes a first main processing unit connected to at least the first...
4941181 Data processing method in recognition system  
A recognition system including a data carrier which is attached to a moving article and which has a memory storing identification data of the article and a control system communicating with the...
4918589 Method and apparatus for linking processors in a hierarchical control system  
An inter-processor communication module is inserted into a slot of an equipment rack of the type used to connect I/O modules to system processors in a programmable controller. Using two of the...
4907146 Interactive video network between one master computer and a plurality of slave computers  
A software-independent network which enables interconnection at video and keyboard level between one master computer and several slave computers, and is compatible with computers using either...
4903191 Centrifuge control system having dual processors  
The present invention relates to control architecture for a centrifuge motor speed control system having dual processors. The processors are configured in a master-slave relationship for some...
4882702 Programmable controller with I/O expansion module located in one of I/O module positions for communication with outside I/O modules  
The capacity of programmable controllers with a processor module and I/O modules connected in a single equipment rack is expanded by connecting an I/O expansion module in one of the positions...
4879644 Object positioning apparatus and method  
Apparatus and method are provided for automatically controlling the position of one or more objects. The apparatus comprises a position control network which receives macro-type movement commands...
4878002 Multi-axis DSP-based parallel processing servo controller for machine tools and robots  
A multi-axis Digital Signal Processor based servo controller system in which all servo and sensor interface boards are connected to a common backplane bus system enabling inter-board...
4873431 Recording apparatus with optical fiber cable interconnecting microcomputers  
A control system for controlling a recording apparatus having a plurality of microcomputers, each microcomputer being formed in a single package. Each package includes an optical interface having...
4825376 Controller for glass sheet processing system  
A controller for use in connection with a central control for a glass sheet processing system including an operator interface and a master computer, the controller including a slave computer, a...
4818993 Electronic control system for controlling several remote devices  
The invention relates to an electronic control device, in which subordinated individual control units (8) for individual control elements (3, 4) such as motors, are provided. Each individual...
4819149 Distributed control system  
A hierarchical distributive control system is disclosed. The lowest level of the system is a stand alone controller with hot plug in capability, which can accept either analog or digital signals,...
4805085 Digital control system for electronic apparatus  
A digital control system for electronic apparatus employs an internal bus system and includes at least one master controller and a plurality of operational circuits connected via control bus lines...
4803613 Decentralized master-slave control apparatus  
A control apparatus for controlling a controlled object including controlled elements comprises a host processor, a plurality of slave modules and a communication network for providing...
4787024 Interface system for simulated display instruments in a vehicle simulator  
A flight simulator includes a host computer 10 coupled to serial buses 13 by master-interface circuits 12, each of which is a serial bus master controller. Each bus 13 is coupled to a number of...
4787040 Display system for automotive vehicle  
An advanced display system controller is described for use in automotive vehicles. The controller has electronic circuitry to allow it to be programmed to display monochrome or color graphics and...
4779093 Bus interface with programmable window for data transfer  
A bus interface system for communicating between a master bus interface and a plurality of slave bus interfaces includes a plurality of lines extending between the master unit and each of the...
4754427 Linking system for programmable controller  
In a programmable controller linking system, a plurality of programmable controllers are connected to one master controller and sequences of the programmable controllers are programmed using...
4752868 Remote master-slave control method  
A remote master-slave control method uses a single command line from a master instrument to a slave instrument. Commands executed at the master instrument are transmitted to the slave instrument...
4752867 Control circuitry for electric drives  
A control system is provided for a hydraulic actuating system having a multi-phase stepping motor with a driver therefor which supplies and controls DC current through each of the motor windings...
4745744 Power transmission  
An electrohydraulic system which includes a plurality of electrohydraulic devices individually controlled by microprocessor-based control electronics. A central controller for coordinating...
4740882 Slave processor for controlling environments  
A slave processor for controlling environments has a microprocessor coupled to digital inputs and outputs, to an analog-to-digital convertor connected to analog outputs, to an interface connected,...
4731733 Device for positioning several units that can be moved adjacent to and at a constant distance from one another  
A device for positioning several units that can be moved adjacent to and at a constant distance from one another, each unit having a distance-traveled detector associated with its drive mechanism...
4730256 Electronic control apparatus including microcomputers for controlling some of the systems found in a vehicle  
An electronic control apparatus for use in vehicles comprised of two, one-chip microcomputers. The microcomputers each have a ROM and a RAM and are used to control different systems provided in...