Did You Know...
...that power steering was invented by independent inventor Francis W. Davis? As chief engineer in the 1920s of the truck division of the Pierce Arrow Motor Car Company, he saw how hard it was to steer heavy vehicles. So that he would be able to keep the profits from his future invention, Davis left his job, rented a small engineering shop in Waltham, Mass., and developed a hydraulic power steering system that led to power steering.
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| Number | Title | Issue Date |
| 5832397 | Integrated wiring systems for a vehicle control system An integrated wiring system for controlling multiple vehicle systems comprising a plurality of terminal control units having different information processing speed and a central control unit. A communications interface is provided in the central control u... | 11/03/1998 |
| 5826060 | Stimulated simulator for a distributed process control system A simulator for a distributed process control system utilizes a simulator station as an interface between a plant modeling computer and an instrumentation and control system which uses actual distributed processing units (DPUs) running actual process cont... | 10/20/1998 |
| 5813496 | System for monitoring and control of the circulation lubrication of the bearings of cylinders and rolls in a paper machine A system for control and monitoring of the circulation lubrication of the bearings of the revolving cylinders and rolls in a paper machine or equivalent in which lubrication oil is fed from an oil-lubrication center or centers through a system of pipes in... | 09/29/1998 |
| 5812390 | Apparatus and method for message variable reordering A portable computer is provided in which message variable values provided for user messages can be readily reordered when different versions of the computer are produced to support respective languages. The computer includes a basic input/output system so... | 09/22/1998 |
| 5808885 | Weld controller system for coupling to a common database system on a communication network A weld controller is coupled to a communications network which has an operator interface unit for monitoring and controlling the weld controller and other weld controllers on the network. A common database in the operator interface unit is accessible acro... | 09/15/1998 |
| 5796604 | System comprising a machine for the communication of pricing changes In a system comprising a communication machine in an installation and a plurality of devices distributed on an information transmission medium, said machine comprises means for the reception of information elements that are present in an electrical power ... | 08/18/1998 |
| 5796352 | Audio video equipment system with bus line and method of establishing a connection setting for the audio video equipment system An audio video (AV) equipment system with a bus line including read-only-memory (ROM) that stores a plurality of predetermined system configurations of AV component devices. The system includes a bus line, a main controller an auxiliary controller, a memo... | 08/18/1998 |
| 5794037 | Direct access to slave processing by unprotected application using context saving and restoration A computer system provides multiple unprotected applications direct access to a slave processor. The host processor issues context switching requests to save and restore partially completed unprotected requests in the slave processor.... | 08/11/1998 |
| 5790791 | Apparatus for synchronizing flight management computers where only the computer chosen to be the master received pilot inputs and transfers the inputs to the spare A method and apparatus for choosing which flight management computer (FMC) of two FMCs will function as a master FMC (11) and which will function as a spare FMC (13) in maintaining data commonalty and synchronization between the master FMC (11) and the sp... | 08/04/1998 |
| 5777870 | Drive control commanding unit, a synchronous contol system for a plurality of drive control commanding units, and a synchronous control method for the units A drive control commanding unit is provided which, when plural such units constitute a system, can configure the system as a synchronous system which can conduct a synchronous operation free from synchronism deviation. The drive control commanding unit ha... | 07/07/1998 |
| 5769527 | Computer controlled lighting system with distributed 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 modular control system comprised of a modular controller mainfram... | 06/23/1998 |
| 5754780 | Apparatus and method for performing serial communication between master and slave devices A communication method and apparatus for performing communication between a master device and a plurality of slave devices, prepares, in the master device, the address data of a destination and operation command data to be transmitted to the destination, ... | 05/19/1998 |
| 5751569 | Geographic train control The invention relates to a method of controlling railroad train movement over a layout of railroad track that is defined geographically using a linear network of geographic control objects which includes signals, switches and track blocks. Each signal has... | 05/12/1998 |
| 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 are read and analyzed by all zone controllers on the netwo... | 05/12/1998 |
| 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 sending line 3 and the common receiving line 2 without using NC... | 05/05/1998 |
| 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 prioritization of the operations. Lower priority nodes can... | 05/05/1998 |
| 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 device. When time T1 has elapsed since completion of sending o... | 04/28/1998 |
| 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 control module. Both control modules send control signals ... | 04/14/1998 |
| 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 enabling implementation with the minimum memory capacity. ... | 04/14/1998 |
| 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 and a second data line. A key word is entered in a communi... | 04/07/1998 |
| 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 central control unit. The exchange unit is connected to th... | 03/17/1998 |
| 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 acting as a master that is turned on first. In the event of... | 03/17/1998 |
| 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 operation unit for instructing to stop printing processing, an o... | 03/17/1998 |
| 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 controller to each of the instrument controllers. The link com... | 02/24/1998 |
| 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 remarkably reduce the number of signal lines of a bus cable, in... | 02/24/1998 |
| 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 convoluted scene data for respective ranges between the missile... | 02/17/1998 |
| 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 determine whether operation is proper. The digital control... | 02/17/1998 |
| 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 shipped. These sensors communicate with an asset tracking unit a... | 11/11/1997 |
| 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 transceiver on board the locomotive, and a local area network o... | 10/28/1997 |
| 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 host computer system to a motion control processor and inte... | 07/01/1997 |
| 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 register (421) based upon an event, after which the slave devi... | 05/13/1997 |
| 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 system has a plurality of transmission devices constituting... | 01/14/1997 |
| 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, breakdown strength, and strain as a function of time. The network c... | 12/17/1996 |
| 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 and a data network subbus operating at 20 MHz. A plurality... | 12/10/1996 |
| 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 digital computer and two input/output units, the master unit ... | 12/10/1996 |
| 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 CPU are formed on a one-chip LSI, thus facilitating realizati... | 12/10/1996 |
| 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 stations comprise a latching setting data area for storing therei... | 12/03/1996 |
| 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 dual-port RAM accessible from said CPUs, and a common bus swit... | 10/22/1996 |
| 5552981 | Electronic apparatus A memory card stores programs and constant data for both a master CPU and a slave CPU. The master CPU identifies a header portion of the memory card attached to a card adapter to identify the storage locations of the data for the master CPU and the slave ... | 09/03/1996 |
| 5550979 | Audio video system An AV system requiring the setting of only the apparatus that acts as the AV center of the system when the system configuration is to be modified. The apparatus desired to be used as the new AV center issues a command to the existing AV center instructing... | 08/27/1996 |
