Patent
Integrated packet switching and circuit switching system
Mark William Beckner,James Alvin Davis,Eric John Gausmann,Hiller Thomas Lloyd,Philip Dana Olson,Dine Gilbert August Van +5 more
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TLDR
In this article, an integrated packet switching and circuit switching system comprising a number of switching modules (1000) each connected to a different plurality of user terminals (1001) is described.Abstract:
An integrated packet switching and circuit switching system comprising a number of switching modules (1000) each connected to a different plurality of user terminals (1001). Each switching module includes a time-slot interchange unit (1011) for providing circuit-switched communication channels and a control unit (1017) that controls the operation of the time-slot interchange unit. Each switching module also includes a packet switching unit (1400) used both to provide packet-switched communication channels among the user terminals connected to that switching module, and to switch control information between the user terminals (1001) and the control unit (1017) to establish circuit-switched calls and packet-switched calls.read more
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Patent
Multi-media interface
John S. Hulen,David Oren +1 more
TL;DR: In this paper, a multi-media interface for interfacing multiuser voice and data between a host messaging center and various communication networks is presented. But the multi-mode interface is not suitable for the use of speech in analog form, speech data in pulsed code modulated (PCM) form, modem data in PCM form, modulating sinusoidal carriers and data in various digital forms associated with a variety of protocol standards.
Patent
Integrated radio telecommunications network and method of interworking an ANSI-41 network and the general packet radio service (GPRS)
TL;DR: In this paper, an integrated radio telecommunications network which integrates an ANSI-41 circuit switched network and a General Packet Radio Service (GPRS) packet data network to support a mobile station which operates in both the ANSI41 network and the GPRS network is presented.
Patent
Local area network for digital data processing system
TL;DR: In this article, a local area network for interconnecting terminals and other users and data processing systems and other service providers over a communications link is described. But the authors focus on the use of a service session between a user and a service provider.
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Automated call handling apparatus
TL;DR: In this article, a computer connected to an ISDN switch via an isDN digital subscriber line, has shared cell appearances with a number of telephone stations connected to the switch, controls the forwarding of calls directed to the stations with which it has a shared call appearance.
Patent
Method of providing message service for limited access telecommunications
TL;DR: In this paper, the authors present a method of operating a telecommunication system for providing a limited access message service to a plurality of end users, which includes distributing a user unit to each end user for calling the one third party telephone number, and at least one unique personal identification number.
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Patent
Method and means for demand accessing and broadcast transmission among ports in a distributed star network
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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Data processing system having dual-channel system bus.
TL;DR: In this paper, a data processing system consisting of a plurality of stations (412), first and second star couplers (416A, 416B), and first pair of transmission lines (414A, 414B) associated with each station (412) is described.
Patent
Switching circuit for digital packet switching network
TL;DR: In this article, a switching circuit comprises an interface to the interior which comprises two-way gates which are connected to internal interfaces of other switching circuits of the network, each of said gates comprising a l-input and n-output receive circuit and an n-input-and l-output transmit circuit, one input of the transmit circuit being connected to the output of a receive circuit different for each of the n inputs, and the input of each receive circuit of a gate of a gating node connecting to the outputs of another gate of another switching circuit of said network.
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Multilevel priority arbiter
TL;DR: In this article, a multi-level arbiter for resolving multiple requests for access to a shared facility is proposed, which includes a plurality of loop arbiters, each including a polling circuit to test each of a pluralityof units for a request for accessing the shared facility.
Patent
Bulk/interactive data switching system.
TL;DR: In this paper, the subject switching system uses a packet switch (106) connected in parallel with the circuit switch (101) to handle bursty data traffic from interactive terminals (T11).