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4268902 |
Maintenance interface for a service processor-central processing unit computer system
A maintenance interface is provided for interfacing a service processor and a central processing unit operating asynchronously to each other. The maintenance interface includes circuitry for...
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4241330 |
Multiple-processor digital communication system
A digital communication system is disclosed for communicating among two central consoles and a plurality of local controllers, such as may be used in a radiation and monitoring system and the like....
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4231015 |
Multiple-processor digital communication system
A digital communication system is disclosed for communicating among two central consoles and a plurality of local controllers, such as may be used in a radiation and monitoring system and the like....
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4201891 |
Expandable digital switching network
A distributed control digital switching network is configured as a group switch having a plurality of stages of multiport single sided switching elements for selectively interconnecting a plurality...
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4177511 |
Port select unit for a programmable serial-bit microprocessor
An apparatus and method for selecting the operation of digital data ports for regulating information flow between a programmable serial-bit, microinstruction processor and a multiplicity of...
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4149240 |
Data processing apparatus for highly parallel execution of data structure operations
A digital computer may be structured in two separate sections, one of which performs the execution of arithmetic and conditional instructions, and the other which contains and performs operations...
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4145733 |
Data processing apparatus for highly parallel execution of stored programs
A processor is described which achieves highly parallel execution of programs represented in data-flow form. The processor operates in a data-driven fashion; that is, an instruction of a program in...
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4130885 |
Packet memory system for processing many independent memory transactions concurrently
Packet communication is used in the architecture of a memory system capable of processing many independent memory transactions concurrently. The behavior of this memory system is prescribed by a...
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4117269 |
Time division multiplex telecommunication exchange
Time division multiplex telecommunication exchange in which each bit group received is compared, in the incoming line circuits, with the preceding bit group. When two successive bit groups are...
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4074232 |
Data sending and receiving system for packet switching network
A packet switching network in which the data transmitted from a data sending terminal is temporarily stored in a packet switching exchange connected to a data sender where the data is divided into...
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4032719 |
Modular slot interchange digital exchange
Up to k (e.g. 4) slot interchange memory/switch modules operate under common control to provide varied time interchange connective pairing associations between space divided telephone and data...
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4028667 |
Asynchronous, hierarchical loop communication system with independent local station control of access to inbound time portions without central control
A CPU communicates via an indirect memory access channel (IMA) to many devices on a high speed loop and an asynchronous low speed loop. The IMA connects to a loop adaptor (LAD) which connects to...
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4007450 |
Data sharing computer network
A data communication network having a plurality of nodes interconnected with a communication link, wherein each node shares given ones of its data sets in common with other nodes in the network,...
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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...
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3961312 |
Cycle interleaving during burst mode operation
Control circuitry in a computer system is responsive to an allow cycle steal signal from an I/O attachment operating in a burst or dedicated data transfer mode and generates control signals whereby...
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3925621 |
Digital circuit switched time-space-time switch equipped time division transmission loop system
This is a TST (Time-Space-Time) digital switching node equipped distributed loop switching telecommunications system with a loop build-out buffer connected in parallel with one switching node in...
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3924077 |
Pulse code modulation time division multiplex telephone system
A pulse code modulation telephone system which allows a plurality of subscribers telephone sets to be connected at various points along a single wire pair. Each telephone contains circuitry for...
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3883693 |
DIGITAL COMMUNICATION SYSTEM
A time division multiplex communication system uses a signal path in the form of cable loops along which terminals for digital data or for voice communication (e.g., telephone hand sets) are...
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