Matches 1 - 39 out of 39
Match Document Document Title
6892267 Method for message transmission exploiting unused device addresses  
A computer-readable media for transmitting data from a computer system comprising a processor, a bus with at least a first address for which no device is available and an element connected between...
5991791 Security aspects of computer resource repositories  
The invention concerns a system for managing resources, which can take the form of (a) computer-compatible information, such as data files and programs, and (b) non-computer-compatible information,...
5446897 Automated address discovery method and apparatus for local area networks  
A method and apparatus for automatically associating physical network addresses with logical identifiers in local area networks. The physical network address is transmitted to a central...
5289585 Multiprocessor system having a system bus for the coupling of several processing units with appertaining private cache memories and a common main memory  
A microprocessor system has a bus system for coupling several processing units, each having an appertaining private cache memory and a common main memory. When an address operation of a transaction...
5157658 Method and apparatus for identifying newly installed modem in dial-up network  
In order to identify a newly installed modem joining other modems which are already installed and established communications with a control unti, the newly installed modem generates, upon...
5105188 Method for initiating configuration of a communication network after the interruption of at least two-ring shaped networks arranged in parallel  
A method is provided for initiating a configuration after the interruption of at least two ring-shaped networks arranged in parallel. After the appearance of malfunctions in the ring lines and ring...
5029209 Pseudorandom, iterative method and apparatus for automatically creating addresses  
A pseudorandom, iterative method and apparatus for automatically creating an address for each remote unit of a data communication network comprising a plurality of remote units, such as the seat...
4947162 Terminal device for a monitoring and control system  
In a terminal device adapted to effect transmission and receipt of information through address polling by a central monitoring/control device, an address having a predetermined number of bits is...
4918598 Method for selectively activating and deactivating devices having same first address and different extended addresses  
A method for activating one of a plurality of devices coupled to a communications medium at a first address location and controlled by a host computer. A plurality of extended addresses are...
4912627 Method for storing a second number as a command address of a first peripheral device and a third number as a command address of a second peripheral device  
A method for transferring data on a communication medium between a host computer and a plurality of peripheral devices coupled to the medium at a plurality of first address locations, including...
4910655 Apparatus for transferring signals and data under the control of a host computer  
A communications medium for transmitting data between a plurality of peripheral devices and a host computer. Only one device may talk on the bus at a time and only in response to a command from the...
4884192 Information processor capable of data transfer among plural digital data processing units by using an active transmission line having locally controlled storage of data  
In an information processor, input interface units (161, 162) are connected to one ring data bus (191) through jointing units (201, 202) and data processing units (181 and 185) are connected to the...
4881074 Method for forming an address table in a ring-shaped communications network  
A packet sequence is formed in a subscriber station which monitors a token ring network including a number of subscriber stations, the packet sequence containing an address recognition bit at a...
4829516 System structure recognition method for a multiloop transmission system  
A system structure recognition method for a multiloop transmission system for recognizing the system structure of a transmission system consisting of a plurality of loop transmission lines, a...
RE32789 Transmission trunk multichannel dispatch system with priority queuing  
A communication system of the type wherein a central station assigns a limited number of information channels to a requesting one of a plurality of remote stations is disclosed. The requesting...
4689786 Local area network with self assigned address method  
A local area network is disclosed including apparatus and methods for transferring data between a plurality of data processing resources ("agents") coupled to a cable. In the preferred embodiment,...
4680583 Terminal address assignment in a broadcast transmission system  
In a broadcast transmission system, in which in normal operation messages and terminal addresses are transmitted between a master station and a plurality of terminals each having an assigned...
4677615 Structure detecting method for circular type transmission system  
The present invention provides, in a system having a plurality of transmission control units which are connected to at least one circular type transmission line, a method of automatically checking...
4661951 Communication network in which at least one station comprises a determination-type message filtering device  
Device for determination-type filtering of messages at the input of a station is connected to a communication network. A preferred embodiment of the device comprises a read/write memory which can...
4627070 Asynchronous data bus system  
An active data bus includes a plurality of multiplex terminals serially interconnected to form a closed loop. Each terminal is capable of assuming either a relay configuration wherein data received...
4615029 Ring transmission network for interfacing control functions between master and slave devices  
A ring network is comprised of slave devices (96) (98), (100) and (102) that are interconnected on a ring network. The slave device (96) is interfaced with a test/maintenance controller (120)...
4612635 Sequential data transmission system  
The present invention relates to a data transmission system, for transmitting information from a first end-user device to a second end-user device, which comprises a plurality of channel elements,...
4602366 Systems for changing addresses of transmission apparatus  
The address changing system comprises a common transmission line, a plurality of transmitting apparatus connected to the common transmission line, and transmitting means for transmitting a packet...
4602365 Multi-token, multi-channel single bus network  
A token-passing ring network, having a plurality of nodes connected to a bus loop, employs multiplexing circuitry for connecting each node to the bus on at least one of a plurality of...
4564899 I/O Channel bus  
A data bus system utilizing logical transfer channels provides high data rates (even over long distances) and good error detection. The basic function of a transfer channel is to enable temporary...
4491946 Multi-station token pass communication system  
A data communication system is disclosed that utilizes a synchronized serial bus for communication between multiple stations connected to the bus. A token is employed such that when owned by a...
4481625 High speed data bus system  
In a high speed data bus system, each functional unit has an associated port which operates to accept all related information that makes up a communication, or if this cannot be done, to accept...
4462099 Error source excluding data transmission system  
A data transmission system comprising a plurality of terminal units each having at least one input and at least one output connected such that each connected input of a terminal unit is connected...
4398192 Battery-saving arrangement for pagers  
A pager or other selectively-addressed electronic device powered by a small power cell operates in four different modes and at two power levels, depending on signals received and a timing sequence....
EP0082889A1 Method and arrangement for local address acquisition by a station in a communication system.  
Abstract not available for EP0082889 Abstract of corresponding document: US4510493 In a local communication network, stations can be attached via extension lines and individual ports in...
4334305 Data-handling system with operatively interconnected processors  
A number of data processors have access, via respective interfaces, to a common ring memory made up of cascaded shift-register sections. Each interface comprises a pair of shift registers or a pair...
4253179 Time division digital switching system with code converting and inverse-converting circuits  
A time division switching system for interconnecting two arbitrary terminals in a digital telephone switching system or a data communication system is disclosed. The system includes a code...
4251865 Polling system for a duplex communications link  
Channel efficiency in a communications link between a controller and multiple portable units is increased by polling the active units and a set number of inactive units in a sequence where a "poll"...
4223380 Distributed multiprocessor communication system  
A distributed multiprocessor communication system, wherein the central processing unit (CPU) is relieved of the burden of bus management by a scheme which multiplexes the interprocessor module...
4177451 Data communication system  
Disclosed herein is a data communication system which carries out the transfer of data information. In said system, when one communication control unit is used as a transmitting side, said unit...
4019176 System and method for reliable communication of stored messages among stations over a single common channel with a minimization of service message time  
A characteristic message exchange procedure is performed by a set of contler units at separate stations and of functionally identical design. The combination of a controller unit and a utilization...
4002842 Time multiplex loop telecommunication system  
A closed unidirectional transmission loop has plural stations coupled thereto in series for transmitting time multiplexed signals in the form of addressed byte groups. For transmitting a byte...
3912872 Data transmission process  
A multiplexing method which utilizes each data bit transmitted to convey both message information and multiplex address information. A memory having sufficient bit position capacity to store a...
3879710 Data processor for a loop data communications system  
A data processor for a time division multiplexed communications system. A plurality of such data processors are connected in series in a loop configuration, each having a data terminal associated...
Matches 1 - 39 out of 39