Patent
Data communications switching device having multiple switches operating at plural selectable data rates
Gary A. Nelson,Stillman F. Gates +1 more
- 21 Feb 1984
9
TL;DR: In this paper, a large scale integrated circuit device is disclosed that can be used as a component in a variable bandwidth branch exchange system or for other applications utilizing programmable network switching, which contains a plurality of duplex per line switches (PLS).
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Abstract: A large scale integrated circuit device is disclosed that can be used as a component in a variable bandwidth branch exchange system or for other applications utilizing programmable network switching. The device contains a plurality of duplex per line switches (PLS). Each PLS interfaces between serial signal streams which may operate at various rates. Date transfers are programmable to occur at variable times with reference to the information highway timing and are programmable in length. The device may be controlled and monitored by an external device, and can optionally transfer control and status information between an external control device and one or more station devices.
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Citations
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Multi-channel autobauding circuit
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TL;DR: In this article, the baud rate of a plurality channels carrying of asynchronous data streams is determined by measuring a time period T between the beginning of a start bit and the transition to a logic high at the beginning each odd-ASCII character.
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TL;DR: In this paper, a data communication system has a number of communicatively coupled devices, including at least one slave-only device, including a clock and a bit clock, which are synchronized and re-synchronized.
25
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TL;DR: In this article, an electronic interface circuit and method for receiving high speed serialata, converting the data to parallel data and multiplexing different types of data together with a temporary buffer storage utilizing a First-In-First-Out (FIFO) buffer memory and controllable output interface circuits and signals is provided.
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Method and apparatus for encoding/decoding QAM trellis coded data
Ephraim Zehavi,Jack K. Wolf +1 more
- 09 Sep 1996
TL;DR: In this paper, a method and apparatus for encoding and decoding QAM trellis modulated data is presented, where a subset of bits of an input bit set are convolutionally encoded based upon punctured convolutional codes of a lower data rate to provide a set of coded symbols.
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References
Patent
Distributed variable bandwidth switch for voice, data, and image communications
Gary A. Nelson,Patrick N. Godding,Richard E. Schumaker,Walter Keith D,Marrone Edward S,Stillman F. Gates,Everett O. Rigsbee,Michael Johas Teener +7 more
- 04 May 1983
TL;DR: In this paper, a variable bandwidth branch exchange system is disclosed for interfacing a network ring to a plurality of peripheral loops, each of the peripheral loops being connected to one or more local stations and to a node on the network ring.
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Patent
Method and means for demand accessing and broadcast transmission among ports in a distributed star network
Robert Poon-Lun Lee,Felix Hugo Closs +1 more
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TL;DR: In this article, the authors proposed a demand access broadcast transmission method and means, which is capable of supporting random port access and any-to-any transmission at very high data rates, by locking a path to a port and limiting race conditions among active ports to only the leading edges of messages.
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Patent
Communication line interface for controlling data information having differing transmission characteristics
Charles R. Baugh,Robert M. Smith +1 more
- 22 Jan 1982
TL;DR: In this article, a programmable station controller is arranged to statistically multiplex the inputs associated with the bursty data while allowing the continuous data to pass on dedicated time slots, and transmission compatibility between bursty and continuous data inputs is assured by subdividing the transmission on the single link into frames having four time slots.
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Patent
Variable bandwidth switching system
Gary A. Nelson,Gooding Patrick N,Richard E. Schumaker,Walter Keith D,Marrone Edward S,Stillman F. Gates,Everett O. Rigsbee,Michael Johas Teener +7 more
- 02 May 1984
TL;DR: In this paper, the authors propose a communication system that improves upon the availability of communications paths between devices and simplifies the connectivity requirements to communicate data and control information to and from a remote station (11).
133
Patent
Transparent intelligent network for data and voice
Mehmet E. Ulug
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TL;DR: In this article, a transparent intelligent communication network has both terrestrial and satellite links between nodes and providing improved accuracy and speed in transmission by distinguishing between data requiring rapid receipt at the receiving node and other data, and dispatching data accordingly, while transmitting system protocol and error-correcting information (e.g., retransmissions) over terrestrial links.
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