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5221918 Back-up warning lamp useful for supplemental inflatable restraint systems  
A vehicle indicator system is set forth for a vehicle that has first and second instrumentation indicator lamps for indicating the condition of first and second vehicle systems. Instead of the...
5214576 Compound control method for controlling a system  
A compound control method involves Proportional Plus Integral Plus Derivative Control (PID control) and Fuzzy Control. The method controls a system by inputting output data of the system to be...
5202822 Universal scheme of input/output redundancy in a process control system  
A controller of a control system, which operates as a master, has a slave input/output processor (IOP) connected thereto which communicates with at least one device of a predetermined type, and a...
5195040 Backup navigation system  
A backup navigation system that is failure resistant. The backup navigation ystem has a multiple member of navigation subsystems. The backup navigation system has the same multiple number of...
5187794 System for simultaneously loading program to master computer memory devices and corresponding slave computer memory devices  
A bus programmable slave module card 30 for use in a computer control system which comprises a master computer and one or more slave computer modules interfacing therewith by means of a bus and...
5185693 Method and apparatus for providing backup process control  
In a backup mode of operation a process control program sends messages, via a local area network, to a process control program running in an active mode for the purpose of obtaining current values...
5168443 Method for providing redundancy of a high speed pulse input I/O processor  
A primary (first) and secondary (second) slave (IOP) collect input pulses from a field device, each independently maintaining an interim total number of pulses. A master controller executes 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...
5148364 Redundant multi-channel closed loop control device with analog integrators  
A redundant closed loop control circuit has a plurality of channels, one of which is the presently active or operating channel, while the other channel (or channels) is in a standby state. When the...
5142470 Method of maintaining synchronization of a free-running secondary processor  
Data bases of a first and second input output processor (IOP), which are primary and secondary slave IOPs, respectively, are sychronized, and communications by a master controller is made only to...
5099411 Digital method of controlling and regulating a turbine that has gas or steam flowing through it and device for carrying out the method  
A digital arrangement for controlling a gas or steam turbine in which operating parameters of the turbine are sensed at a regular rate. Control parameters are then calculated from the operating...
5095418 Multiplex control system  
A multiplex control system has a plurality of control apparatuses, test signal generators provided, respectively, for the control apparatuses for the purpose of internal diagnosis thereof, signal...
5095332 Data processing apparatus provided in copying machine  
A data processing apparatus provided in a copying machine is provided for eliminating the need for replacing the data such as adjusting values in case of replacing a memory board in the copying...
5088021 Apparatus and method for guaranteed data store in redundant controllers of a process control system  
In a process control system, having at least one process control unit which includes redundant equivalent controllers to reduce the impact of failure of the controllers in the process control unit,...
5086384 Master-slave-type control system with stand-by suspending control station  
In a master-slave-type control system, a normal supervisory control station which is a master device, control terminal devices, and a stand-by supervisory control station which is a slave device...
5062033 Electro-hydraulic control system for a mineral mining installation  
An electro-hydraulic control system for a mineral mining installation has a plurality of control units (4) sub-divided into operational groups (I, II, III) with associated roof supports. Each group...
5033882 Circuit for conserving power of a backup battery  
Circuitry including a first and second source of electrical energy provides a continuous supply of electrical energy to a volatile memory circuit utilized within an electrical apparatus. The...
5008805 Real time, fail safe process control system and method  
A real time control system is disclosed for controlling the sequential execution of scheduled operatons such as in process control or broadcast scheduling applications. The system uses a fail safe...
4998194 Multiplex control system with programmable logic for controlling signal transfer between controllers and one or more controlled systems  
A multiplex control system has controllers for delivering control data to at least one common controlled system, and a multiplex mode switching device which is constructed to permit the logic for...
4992928 Multiple error processor in automatic work handling apparatus  
A multiple error processor in an automatic work handling apparatus includes controlling a number of operating mechanisms individually by the operation of control devices corresponding thereto. The...
4985824 Reliable fuzzy fault tolerant controller  
The invention is a controller which provides continuous regulation of the output of a process or a plant as well as performing discrete control functions. The REFFTAC includes an adaptive direct...
4984240 Distributed switching architecture for communication module redundancy  
Partner modules are assigned to a plurality of primary modules in a communications system, each partner module being adapted to route signals from the primary module to which it is assigned to a...
4965714 Apparatus for providing configurable safe-state outputs in a failure mode  
A process control system includes a processor which outputs command signals to a plurality of field devices via an interface unit. The interface unit comprises a primary output unit for outputting...
4959768 Apparatus for tracking predetermined data for updating a secondary data base  
A process control system includes a primary processor connected to a primary memory via a bus. The primary processor transfers data to be stored to said primary memory. An apparatus of the present...
4958270 Method for control data base updating of a redundant processor in a process control system  
A process control system includes a process controller which has a first and second controller, one of the controllers being designated as a primary controller and the other controller being...
4941087 System for bumpless changeover between active units and backup units by establishing rollback points and logging write and read operations  
The central unit of a computer equipment has a processor and a memory as well as redundant units as backup units for the processor and/or the memory. Further, there are members for changeover from...
4907170 Inference machine using adaptive polynomial networks  
An inference machine is described which comprises an adaptive polynomial network with the capability of implicitly inferring missing input information contained in time-dependent signals. The...
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...
4896828 Solid state emergency heat circuit  
An emergency heat circuit for a microprocessor-controlled furnace has a first emergency heat switch with one terminal in contact with a rectifier circuit that provides a DC voltage when the...
4897631 Control apparatus  
A control apparatus with connecting terminals which are in part connected to serve a plurality of functions. The control apparatus has at least one memory and can be especially for a control...
4890284 Backup control system (BUCS)  
A backup software program is installed in an isolated portion in the memory of at least one of redundant computers. The backup program performs basically the same functions as the prime program but...
4882669 Multi computer fail safe control apparatus  
There is a control apparatus using a plurality of microcomputers for controlling an apparatus. This control apparatus comprises a first microcomputer for controlling loads and a second...
4882778 Electronic load drive control apparatus  
There is disclosed a novel control system in an electronic apparatus such as a copier, in which intelligent registers are provided in addition to the microprocessor and execute control under...
4849919 System wake up circuit for computer  
An electronic apparatus such as a computer is of the type in which the computer is energized for wake up in accordance with a timer or an external key input. Prior to the system wake up by the...
4847830 Method and apparatus for automatic loading of a data set in a node of a communication network  
In a communication network, including a first node and a plurality of neighbor nodes that are linked by communication channels to the first node, a data set is retrieved from neighbor nodes...
4841431 Programmable transfer machine  
A transfer machine comprising a conveyor for conveying workpieces to stations and numerically controlled machine tools disposed at their respective stations. These machine tools are controlled by...
4823256 Reconfigurable dual processor system  
A is a duel processor system (100) with duplicated memory (114,124) has two modes (10,11) of operation: a converged mode (10) in which one of the two processors (101,102) is active and executing...
4821193 Digital control for gas turbine engine  
In a two-channel control system for a gas turbine engine, the occurrence of a fault in the engine causes the control system to switch from one channel to the other. If it is found that neither...
4807153 Multiaxis digital robot control having a backup velocity monitor and protection system  
A digital robot control includes a position/velocity microprocessor control and a torque microprocessor control for each of multiple robot axes. Digital position, velocity and motor current...
4797884 Redundant device control unit  
An industrial, digitally controlled processing system including two nominally identical electronic devices connected in the system in a manner such that one of the devices functions as an active...
4775976 Method and apparatus for backing up data transmission system  
A data transmission system is disclosed in which a plurality of data transmission service units and terminals are connected to a data transmission line to effect, e.g., an in-line or local area...
4773072 Method and circuit configuration for suppressing short-time interferences  
A method and a circuit configuration for suppressing sporadic interferences in the processing of data by means of two circuit systems (2, 3, MC1, MC2). The circuit systems redundantly process the...
4752869 Auxiliary reactor protection system  
Redundant trip logic microprocessors produce partial trip signals which are voted on by a pair of voters at the power interface to the actuated devices. The logic implemented by each trip logic...
4747041 Automatic power control system which automatically activates and deactivates power to selected peripheral devices based upon system requirement  
A selective, non-manual power controller provides the selective, non-manual power control of various components of a data processing equipment from and reports the power status of such components...
4740887 Method and system for improving the operational reliability of electronic systems formed of subsystems which perform different functions  
A method and system for improving the reliability of an electronic system formed of subsystems which perform different functions. The electronic system is analyzed to determine which of the...
4740888 Control system for cooking apparatus  
A control system for cooking apparatus including a heat source, a heat control system and a back-up thermostat system having a back-up temperature probe. The control system includes a digitally...
4739469 Fail-safe circuit for a control system  
A highly reliable, fail-safe circuit for a control system wherein a controlled device will always receive a control signal derived from a main control circuit when the main control circuit operates...
4722061 Establishing synthesis validity between two signal sources  
In an electronic engine control (EEC) for a turbine engine, a high rotor speed signal (N2SYNTH) is synthesized from a sensed low rotor speed signal (N1) in a primary control channel (32) so long as...
4718389 Apparatus for the control of repetitive events dependent on operating parameters of internal combustion engines  
Control signals for triggering the events to be controlled, via at least one output stage (13, 14), are generated in a vehicular computer (11) as a dependent function of the output signals of a...
4716531 Two lane engine control system  
A control system for a gas-turbine engine has two parallel control units, either one of which can be switched to supply control signals to the engine in response to input signals, such as from the...
Matches 201 - 250 out of 322 < 1 2 3 4 5 6 7 >