Patent
Programmable communications controller
Steve Robinson,James A. Kennedy +1 more
- 05 Jul 1977
35
TL;DR: In this paper, a programmable communications controller has a microcomputer system for buffering and controlling data communications between a communication processor and a plurality of input/output (I/O) ports of the micro computer system to which ports/terminals can be connected directly or indirectly by digital data communication lines.
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Abstract: A programmable communications controller having a microcomputer system for buffering and controlling data communications between a communication processor and a plurality of input/output (I/O) ports of the microcomputer system to which ports/terminals can be connected directly, or indirectly, by digital data communication lines. The random access memory of the microcomputer system is divided into blocks of addresses of locations in which digital data can be stored. One of these blocks is designated as a service block. The service block in turn is divided into sectors, one for each I/O port to which is connected a communication line, for example. Each sector in the service block is adapted to have written into it and read from it data unique to the servicing of a given communication I/O port and the communication line or data terminals connected to that port. The microcomputer system of the controller is provided with an automatic addresser which is under the control of the microcomputer system. The automatic addresser steers memory commands addressed to the service block to the sector of the service block assigned to the communication I/O port being serviced by the microcomputer system at that time by substituting the address of the communication I/O port being serviced for the address applied to the sector address lines of the address bus by the microcomputer system. The automatic addresser also steers, in a similar manner, I/O commands from the microcomputer system to the communication I/O port being serviced by the microcomputer system at that time by substituting the address of the port being serviced for the address of whatever I/O port is applied to the address lines of the microcomputer system.
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Citations
Patent
I/O Controller for transferring data between a host processor and multiple I/O units
John Monroe Dinwiddie,Bobby Joe Freeman,Timothy Jackson,William Lewis Zipoy +3 more
- 25 Nov 1981
TL;DR: In this paper, the authors propose an interleaving mechanism for concurrent performance of two different modes of data transfer between the host processor and the I/O controller, which enables host processor direct program control (DPC) data transfers to be performed at the same time that the controller is busy doing cycle steal data transfers for a block of data.
95
Patent
I/O controller for controlling the sequencing of execution of I/O commands and for permitting modification of I/O controller operation by a host processor
David M. Harrington,John R. McDaniel,Stephen A. Caldara,Louis A. Lemone,Kenneth R. Andrews,Paul Funk +5 more
- 09 Jan 1987
TL;DR: In this paper, a data processing system which includes a host processor and an input/output (I/O) controller unit for controlling communication with I/O devices is described.
94
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- 26 Mar 1998
TL;DR: In this paper, an apparatus for electronically communicating metered electrical power is disclosed, in which a first processor receives voltage and current signals and determines electrical power, and a second processor, connected to the first processor, receives the power signal and generates an output signal representative of electrical power information.
92
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Method and apparatus for electronic meter testing
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- 05 Nov 1992
TL;DR: In this paper, an electronic energy meter senses input voltage and current signals and processes the inputs to generate measurements of multiple types of power and defines the same as the selected type of power for testing the operation of the meter.
81
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Methods and systems for manufacturing a structure having organized areas
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76
References
Patent
Multiprogramming control for a data handling system
Harry G. Schaffer,Eleuthere Poumakis,Dan A. Neilson +2 more
- 27 Apr 1970
TL;DR: In this article, a data handling system including a plurality of groups of data originating and/or receiving devices operable asynchronously and independently with respect to each other, each group of such devices being coupled with an associated data transmission controller by means of a common data channel for buffering one unit (character) of data and providing certain basic data transmission controls for transmission of a character between an associated device and a common input/output data channel extending between the controllers and a supervisory control unit which is coupled with a main memory unit and a second data transmission channel.
109
Patent
Apparatus for selectively addressing sections and locations in a device controller's memory
Douglas L. Riikonen
- 22 Dec 1975
TL;DR: In this paper, a memory in a device controller is divided into sections which are equal in number to the potential number of devices controllable by the controller, each section having a plurality of storage locations for storing the same topology of information in like positioned locations in the other sections.
36
Patent
Integrated multi-computer system
Bevier Hasbrouck
- 19 Mar 1968
TL;DR: In this article, the authors present a model of a MULTI-COMPUTER system, where a large number of independent companies operate with a common central processor on a time-sharing basis.
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