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5751572 HVAC communication network  
An HVAC communication network includes one or more master controllers that communicate with their respective zone controllers by issuing broadcast messages over the network. The broadcast messages...
5748468 Prioritized co-processor resource manager and method  
A co-processor resource manager allocates resources of a co-processor platform to nodes implementing operations requested by applications running on a host processor according to a user-modifiable...
5748465 Method of processing data in numerically controlled drive unit  
Detection data of an amount of control is directly monitored and a correction control command is directly outputted by a plurality of numerically controlled drive units 4, 5, 6 via the common...
5745048 Communication system  
A master device sends a continuation (or stop) message on a communication line without causing mutual collision on the communication line with a response message continuously sent from a slave...
5740029 Software algorithm providing dynamic configuration of dead band control criteria within a micro based real time process control environment  
The invention provides a real time process control system for control of machinery. The system has a master control module and a slave control module which receives control signals from the master...
5739760 Method and system for remote supervisory control  
A remote supervisory control system is provided in which a master system performs monitoring and control of a plurality of slave systems, maintaining the fine control capability of the past, while...
5737630 Communication device for synchronized serial communication  
In order to shorten time needed for communication and alleviate the processing load of the handshake procedure, a master CPU and a slave CPU perform an exchange of data utilizing a first data line...
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...
5729686 Method for initializing a network having a plurality of network subscribers capable of acting as masters  
A method for initializing a network having a plurality of network subscribers being capable of acting as masters, includes assigning the master function to the network subscriber being capable of...
5729268 Printing apparatus and method of controlling the same  
A printing apparatus for superposing and recording images of respective recording color components constituting one page on a predetermined recording medium to form a color image includes an...
5721946 Signal transfer method having unique word assigned to terminal stations appended before control frames originated from control station and terminal stations  
A signal transfer method for transmitting and receiving signals between a control apparatus and a plurality of controlled apparatuses. In order to achieve the signal transfer method which can...
5721676 Centrifuge data communications system  
A data communications system for a plurality of centrifuge instruments, each with a local controller, includes a central data controller and a communication link that connects the central data...
5719559 System and method for the verification of a digital control system  
A verification system monitors the operation of a digital control system in order to insure proper operation. The verification system receives control signals and monitors these control signals to...
5719797 Simulator for smart munitions testing  
A missile or other smart munitions simulator uses an analog function simuor to simulate the detector signal of the missile's optical tracking components. The analog function simulator stores...
5686888 Use of mutter mode in asset tracking for gathering data from cargo sensors  
The condition and/or integrity of goods is monitored while in transit using a local area network of tracked assets. Autonomous electronic sensors are situated in proximity to the cargo being...
5682139 Railcar location using mutter networks and locomotive transmitter during transit  
A method of tracking railcars in transit using global positioning techniques involves determining the location of a railcar by using a Global Positioning System (GPS) receiver and a satellite...
5644486 Programmable controller for mechanical systems  
An apparatus for controlling a mechanical system in response to messages from a host computer system. The apparatus includes a conventional communications link for communicating messages from the...
5630152 Communication protocol between master and slave device with register information sharing  
A method for full duplex communication between master and slave devices (403, 422) coupled by a serial peripheral interface (420) includes the steps of the slave device (422) updating a status...
5594662 Data link control system for monitoring control  
A control system includes data links for monitoring control of a transmission device from a maintenance device by polling, to make it easier to change the setting of the data link connection. The...
5586305 Smart distributed measurement and control system with a flexible architecture  
A distributed adaptable measurement network, which has flexible sensor or actuator nodes, takes multiple single valued measurements, such as temperature, pH, density, turbidity, velocity,...
5583506 Signal processing system and method  
An avionic digital signal processing system for a plurality of different types of input sensors such as radar, electro-optical, and electronic warfare that comprises a PI bus operating at 12.5 MHz...
5584034 Apparatus for executing respective portions of a process by main and sub 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...
5583754 Method and device for configuring functional units in a serial master-slave arrangement  
A device for configuring functional units a serial master-slave arrangement, including a master unit having a digital computer and an input/output unit, a plurality of slave units each having a...
5581701 Factory automation network system  
In a network system-in which communication of various information is executed between a plurality of parent/child stations which are connected to each other on the network, the parent/child...
5568617 Processor element having a plurality of processors which communicate with each other and selectively use a common bus  
A processor for constructing a single processor system or multiprocessor system comprises, within a base processor element constituting the processor, two CPU with associated local memories, a...
5548725 System for transmitting command and/or data in a single packet and automatically reporting status a predetermined time after receiving a command  
An audio visual control apparatus for communication between a master device and a slave device comprises a master AV center, at least one slave device, a digital control bus line and a...
5544332 Method for preventing deadlock in a multi-bus computer system  
Deadlock detection and masking systems are incorporated into a bus coupler intercoupling at least two buses, wherein at least one master is coupled to each bus and at least one slave is coupled to...
5541670 Electric apparatus and connector  
A connector that has three input/output ports and that can connect any two of the ports is used with a cable box that selects a channel from a CATV signal for a VCR and a TV, which also have...
5528215 Building automation system having expansion modules  
A building automation system is disclosed which enables reliable operation and cost effective expansion. The system utilizes pairs of complementary modules, one of which is a primary module that...
5519602 Multiple slave control  
A multi-operation control system is made up of a plurality of slave computers at least some of which are axis computers each monitoring its respective operation and receiving instructions broken...
5506995 Bus master for selectively disconnecting/connecting a first bus to and from a second bus in response to an acquisition request  
A computer system having a bus connection and disconnection unit for connecting and disconnecting an ISA bus to and from a slave bus, the ISA bus being connected to a main processor. The slave bus...
5497330 Method for retaining the correction value of a control variable in an engine control device  
A method of storing a correction value of a control variable in an engine control device includes the steps of transferring a correction value stored in a RAM to an E2 PROM by serial communication...
5485624 Co-processor monitoring address generated by host processor to obtain DMA parameters in the unused portion of instructions  
A co-processor works in conjunction with a primary processor which does not natively support co-processing. In a memory which provides instructions for the primary processor, parameters for use by...
5481456 Electronic control system having master/slave CPUs for a motor vehicle  
An electronic control system for a motor vehicle, having multiple sensors (M1) for detecting the operating condition parameters of the motor vehicle; a master controller (M4) from and to which...
5481750 Process for allocating addresses to newly connected apparatus in a domestic network controlled by a master controller  
The process uses the technique of carrier currents between the emitter-receivers (2, 3 . .) called slaves comprising each a microcontroller (4, 5 . .), and a master controller (6) comprising a...
5479589 Object-oriented system for selecting a graphic image on a display  
A method and apparatus for defining customizable pick, hit or find detection criteria for geometric types and using the results of the search as a basis for determining whether to perform an...
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...
5463208 Task processing apparatus  
A task processing apparatus includes a main CPU, a plurality of sub-CPUs, a first starting section, a second starting section, and a notification section. The plurality of sub-CPUs independently...
5455959 System for collecting from masters information independently collected from associated slaves in shelves of a telecommunications terminal  
An automatic inventory retrieval system collects inventory and status information regarding the presence or absence of plug-in master and slave units in the slots of various shelves in a...
5432715 Computer system and monitoring method  
A computer system and monitoring method for efficiently monitoring a plurality of computers interconnected within a network. In this computer network system, each computer has a self-monitoring...
5371859 System for providing data communications between a plurality of measurement data generating/receiving modules connected to a common communication bus  
A system provides data communications between measurement data generating/receiving modules connected to a common communication bus. A master station connected to the communication bus can assign...
5337229 Shared interface for multiple controllers  
A control system for a balancing machine has a main computer with a keypad and monitor, an auxiliary computer for managing the balance measurement and correction functions and sharing the same...
5331619 Programmable control system for gas and liquid dispensing devices  
A programmable fluid or gas control system controls the operation of one or more solenoid valves, each of which in turn controls a gas or fluid dispensing unit. The control system may be used to...
5329431 Computer controlled lighting system with modular control resources  
A stage lighting system is comprised of a plurality of lamp units which may have diverse communication protocols, functions and data parameters. The stage lighting system is controlled by a...
5329579 Modular adjunct processor made of identical multi-function modules adaptable under direction of one of them to perform any of the adjunct-processor functions  
A voice-mail system (10) is assembled from one (100) or more (100-102) programmable multi-function boards all of which are interchangeable and physically identical. The voice-mail system...
5317501 Control system for a numerically controlled machine  
A control system is proposed which is integrated in a single housing and is designed for a numerically controlled machine. The control system comprises a PC board which includes an input device, a...
5297260 Processor having a plurality of CPUS with one CPU being normally connected to common bus  
A processor for constructing a single processor system or multiprocessor system comprises, within a base processor element constituting the processor, two CPU with associated local memories, a...
5276900 Master connected to common bus providing synchronous, contiguous time periods having an instruction followed by data from different time period not immediately contiguous thereto  
In the present invention a digital communication controller for interfacing with a master processor and a synchronous bus having a plurality of slave processors connected thereto is disclosed. The...
5276896 Apparatus for implementing data communications between terminal devices and user programs  
Apparatus for implementing input/output (I/O) operations in a computer system operating under the control of a UNIX* operating system includes a dedicated communications processor in addition to...
5265201 Master-slave processor human interface system  
A master-slave processor human interface system. An electronic device, a slave processor for controlling the electronic device and performing certain computational functions, a master processor...