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5786996 |
Appliance control circuit comprising dual microprocessors for enhanced control operation and agency safety redundancy and software application method thereof
An appliance control circuit comprising dual processor control for enhanced control operation and agency safety redundancy. A first processor is disposed in operative communication with operator...
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5777874 |
Programmable controller backup system
The present invention constitutes a data crossloading system for use with a programmable controller system having primary and secondary (or "back-up") systems each of which have redundant hardware...
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5761518 |
System for replacing control processor by operating processor in partially disabled mode for tracking control outputs and in write enabled mode for transferring control loops
A method and apparatus for performing an on-line replacement of an industrial process control processor module via loop-by-loop transfer of control blocks is described. After replacing a backup...
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5761061 |
Data processing medium, its backup circuit, and data processing system
There is disclosed a backup circuit for a memory card where the stored data in an S-RAM is retained even when the card (2) contains a main battery (18) whose output voltage is 3.3 V, an auxiliary...
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5751574 |
Method for loading software in communication systems with non-redundant, decentralized equipment
In a method for loading software in communication systems with non-redundant, decentralized equipment so that the availability of a communication system for the connected subscribers remains...
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5751938 |
Peripheral module and microprocessor system
A peripheral module includes a peripheral bus arranged for coupling to a number of submodules and an asynchronous interface for coupling the peripheral bus to a main bus of a microprocessor system....
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5748470 |
Semiconductor processing backup system
A manufacturing system is disclosed which includes first and second control devices as well as a communication terminal which controls communication with the control devices. The communications...
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5729601 |
Electronic exchange apparatus having separated exchange unit and general-purpose control unit
An electronic exchange apparatus where an exchange unit for controlling extension-line and trunk-line interface cards unique to the exchange apparatus is provided separately from a general-purpose...
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5726878 |
Prediction controller
There is provided a prediction controller which requires a small amount of memory and a small amount of calculation performed in each sampling period and which can cope with a delay in the...
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5654691 |
Auxiliary backup device of burglary alarm system
The present invention provides an auxiliary backup device of burglary alarm system, connected with an alarm output and an auxiliary power output of a burglary control panel and an alarm device,...
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5619131 |
Parallel analog-digital monitoring system
An electronic monitoring system provides an actual value sensor which detects an actual value of a component to be monitored, e.g., the rotational speed of a drive motor, and emits actual value...
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5588636 |
Water fixture control system
A fixture provided with proximity sensing for operation of the valve and contactless setting of the parameters of the control circuit for operating the valve of the fixture, can have a nonvolatile...
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5583755 |
Control system having independent and cooperative control function
A control system comprising two controller modules. The controller module includes an independent controller, a cooperative controller, an adjuster and a synthesizer. The independent controller...
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5579220 |
Method of updating a supplementary automation system
An update method is described for a supplementary automation system, which is to be coupled to a starting automation system, where the starting automation system controls a technical system. In the...
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5552764 |
Alarm detecting system for redundancy configuration circuit
In a receiving circuit which serves as a system in use, a gate circuit is enabled in response to a specifying signal. In a receiving circuit which serves as a backup system, a gate circuit is...
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5552860 |
Monitoring system in auto-restoring image reproducing system
For an image reproducing system provided with an auto-restoration capability, a monitoring system is disclosed involving display by an image reproducing machine of the system in connection with...
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5522087 |
System for selectively operating in different modes depending upon receiving signal from a host computer within a time window upon power up
A method for operating a local device to permit a host computer to assert control over the local device via a communication port. A control available time window of prearranged duration is set up...
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5508910 |
Redundant analog I/O board system
In a distributed logic control system, two duplicate analog I/O boards are provided to provide redundancy for the analog I/O boards. The analog I/O boards serve the function of applying analog...
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5504673 |
Microprogram load unit
A microprogram load unit comprising a readable and writable microprogram memory within a central processor unit for storing microprogram, a relatively low speed, readable and writable, nonvolatile...
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5487096 |
Integrated circuit with real time, elapsed time, and cycle counter clocks
An integrated circuit which includes not only a real time clock, but also an elapsed time counter, and a third counter. The elapsed time counter measures the total number of seconds during which a...
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5481716 |
Process for machine generation of a control process program
The invention relates to a method for the automatic generation of a control process program on a computer. One illustrative embodiment, referred to as STAR-GEN, is described as it might be...
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5469503 |
Method for resynchronizing secondary database and primary database with preservation of functionality of an automatic call distribution system
In an automatic call distribution (ACD) system having a controller function, a primary system controller and a redundant system controller wherein the secondary system controller is in active...
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5463545 |
Functional redundancy control system
A so-called "softly broken apparatus" by constructing a self-repair apparatus based on functional redundancy. An apparatus is represented in a form including a function using an FBS diagram (a...
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5452200 |
Control system that selects proportional-integral control channels having integrator update capability
A control system has several proportion-integral channels, each producing a control signal based on an individual error signal and feedback of the control signal. One of the channels is selected to...
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5444644 |
Auto-configured instrumentation interface
An instrumentation interface circuit controlled by a microprocessor of a data acquisition system enables identification of the type of input/output devices that are connected to its inputs through...
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5436827 |
Control interface for customer replaceable fan unit
A fault-tolerant control and monitoring system for fan assemblies used in electronic equipment. The fan control and monitoring system of the present invention reduces the probability of high...
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5408421 |
Portable battery back-up data cartridge
The cartridge has a memory for containing an information set, a status flag and a buffer for receiving an update to the information set, the update representing a change to only a part of the...
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5404563 |
Scheduling normally interchangeable facilities in multiprocessor computer systems
A system and method for dispatching logical central processing units (CPUs) among physical CPUs in a multiprocessor computer system having multiple logical partitions, wherein the cryptographic...
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5390103 |
Synchronized programmable controller and method of controlling the same
A programmable controller for controlling line assembly machines includes first and second CPUs for cyclic execution of a user program stored in user memories. Execution cycles of one of the two...
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5357425 |
Method and apparatus for controlling a real time system
A method and apparatus are disclosed for inherent, reliable control of real time systems. The technique is based on asynchronously scheduling a plurality of sensor sampling cycles over a suitable...
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5313386 |
Programmable controller with backup capability
A machine is controlled by a system which has a pair of programmable controllers connected in tandem. One controller operates in the active mode governing the operation of the machine, while the...
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5301308 |
Method for synchronizing redundant operation of coupled data processing systems following an interrupt event or in response to an internal command
The system synchronizes data processing systems coupled together using a synchronization operation that is only implemented as a function of events that necessitate synchronization. The system...
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5287264 |
Multicontroller apparatus, multicontroller system, nuclear reactor protection system, inverter control system and diagnostic device
A multicontroller apparatus has a plurality of control units each including a controller and a diagnostic device for making a diagnosis of the controller. Each diagnostic device includes an...
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5287285 |
Electronic multi-shaft absolute position detecting device
An electronic multi-shaft absolute position detecting device comprising an absolute position recording circuit, an interface circuit, a spare power circuit, and a cooperating application software...
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5285381 |
Multiple control-point control system and method of use
A control system for rapid fault tolerant control of a multiple control-point apparatus is disclosed. The system comprises: a host subsystem acting as a user interface; a plurality of control-point...
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5276630 |
Self configuring controller
A method of operating a controller of an HVAC system comprising the steps of: constantly establishing the validity of each of a plurality of input devices; and reconfiguring the mode of operation...
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5270917 |
Plant monitoring and control system
A plant monitoring and control system is specialized in a plant such as a reactor power plant, which is provided with plural process systems functionally divided, and is communicable between the...
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5271092 |
Method for transmitting a permission signal for the operation of a robot
A method for transmitting a permission signal for the operation of a robot is provided. In order to detect whether a permission signal gets from a manual programming unit to a robot control without...
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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...
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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...
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5253360 |
Facsimile device having continuous operating capabilities immediately after recovery from trouble and related method
In a facsimile device, an application program to perform "concurrent" transmission, multicopy, etc., is divided beforehand into a plurality of phases each being allocated a phase value for...
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5249187 |
Dual rail processors with error checking on I/O reads
A dual processor data processing system having interprocessor error checking includes a first central processing unit executing a series of instructions. A second central processing unit executes...
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5245531 |
Multiplexed digital control device
A multiplexed digital control device includes a plurality of control circuits and a main signal selection circuit for selecting and outputting a specific signal among the outputted manipulated...
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5243324 |
Method of detecting a fault in an automotive system
A method for detecting a fault in an automotive system is disclosed, the method including the steps of energizing the system, monitoring the power supply value of the vehicle power supply during a...
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5233542 |
Method and circuit configuration for forming an evaluation signal from a plurality of redundant measurement signals
A method for forming an evaluation signal (YM) representing a measurement value comprises the steps of obtaining a plurality of measurement signals (X1, X2, X3, X4) from a plurality of sensors...
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5233543 |
Device for generating a current corresponding to a quantity supplied to the device
A method and apparatus for generating a current corresponding to a quantity supplied to the device, for example an analog current output device for a digitally working process control system, using...
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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...
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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...
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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...
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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...
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