US5748626A
Expired / Lapsed
US
⏱️ 0.0 years remaining
ATM communication system with high speed connection-less service function
Assignee: Toshiba Corp
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Filing: 1996-08-16
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Granted: 1998-05-05
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Expires: 2016-08-16
Abstract
Abstract ATM communication system capable of realizing a high speed and efficient datagram delivery for the connection-less communication among the terminals in the ATM network. In the system formed by a plurality of ATM networks inter-networking with each other, each network containing a plurality of terminals, the ATM networks with connection-less service function units for managing a connection-less datagram transmission are provided in the ATM networks, and the connection-less datagram transmission from each terminal to a destination terminal is performed by resolving a connection identifier for identifying an ATM connection connected to a destination side connection-less service function unit associated with a destination side ATM network containing the destination terminal, and transmitting datagram from said each terminal to the destination side connection-less service function unit through the ATM connection identified by the resolved connection identifier.
Inventors
- 👤 Hiroshi Esaki
- 👤 Takeshi Saito
- 👤 Shigeo Matsuzawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 04:50
CPC Classifications
H; H04; H04L; H04L12/00; H04L12/28; H04L12/46; H04L12/4604; H04L12/4608; H04L12/66; H04Q; H04Q11/00; H04Q11/04; H04Q11/0428; H04Q11/0478; H04L12/54; H04L12/56; H04L12/5601; H04L2012/5614; H04L2012/5618; H04L2012/5619; H04L2012/5623; H04L2012/5638; H04L2012/5645
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
145 words
An ATM communication system, comprising: a plurality of networks, including ATM networks and a destination side network and containing a plurality of terminals, the plurality of networks inter-networking with each other, the destination side network containing a destination terminal; and a plurality of connection-less service function means for managing connection-less datagram transmission in the plurality of networks, the plurality of connection-less service function means including a destination side connection-less service function means which is associated with the destination side network; wherein the connection-less datagram transmission from each terminal of the plurality of terminals to the destination terminal is performed by obtaining a connection identifier for identifying an ATM connection connected to the destination side connection-less service function means, and by transmitting a datagram from said each terminal to the destination side connection-less service function means through the ATM connection identified by the obtained connection identifier.
Claim 2
Dependent Claim
145 words
An ATM communication system, comprising: a plurality of networks, including ATM networks and a destination side network and containing a plurality of terminals, the plurality of networks inter-networking with each other, the destination side network containing a destination terminal; and a plurality of connection-less service function means for managing connection-less datagram transmission in the plurality of networks, the plurality of connection-less service function means including a destination side connection-less service function means which is associated with the destination side network; wherein the connection-less datagram transmission from each terminal of the plurality of terminals to the destination terminal is performed by obtaining a connection identifier for identifying an ATM connection connected to the destination side connection-less service function means, and by transmitting a datagram from said each terminal to the destination side connection-less service function means through the ATM connection identified by the obtained connection identifier.
Claim 3
Dependent Claim
27 words
The system of claim 1, wherein the destination side network is an ATM network and the connection-less service function means is provided in each ATM network separately.
Claim 4
Dependent Claim
24 words
The system of claim 1, wherein the ATM connection is set up between said each terminal and the destination side connection-less service function means.
Claim 5
Dependent Claim
39 words
The system of claim 1, wherein the ATM connection is set up between a source side connection-less service function means associated with a source side ATM network containing said each terminal and the destination side connection-less service function means.
Claim 6
Dependent Claim
30 words
The system of claim 4, wherein the datagram is transmitted from said each terminal to the destination side connection-less service function means via the source side connection-less service function means.
Claim 7
Dependent Claim
41 words
The system of claim 4, further comprising: inter-networking means provided in the ATM networks for inter-networking the ATM networks, for setting up the ATM connection between the source side connection-less service function means and the destination side connection-less service function means.
Claim 8
Dependent Claim
34 words
The system of claim 1, wherein the destination side connection-less service function means analyzes the datagram transmitted from said each terminal and delivers the datagram in the destination side network to the destination terminal.
Claim 9
Dependent Claim
39 words
The system of claim 1, wherein the destination side connection-less service function means terminates the ATM connection to analyze the datagram transmitted from said each terminal and relays the datagram in the destination side network to the destination terminal.
Claim 10
Dependent Claim
41 words
The system of claim 1, wherein the connection-less service function means relays the datagram transmitted from said each terminal until the datagram reaches to the destination side connection-less service function means which can deliver the datagram to the destination terminal directly.
Claim 11
Dependent Claim
29 words
The system of claim 1, wherein the connection identifier is obtained by using an ATM layer address of the destination side connection-less service function means at said each terminal.
Claim 12
Dependent Claim
43 words
The system of claim 1, wherein the connection identifier is obtained by using an ATM layer address of the destination side connection-less service function means at a source side connection-less service function means associated with a source side network containing said each terminal.
Claim 13
Dependent Claim
45 words
The system of claim 1, further comprising; inter-networking means provided in the ATM networks for inter-networking the ATM networks, for setting up the ATM connection between said each terminal and the destination side connection-less service function means, which is not terminated over the inter-networking means.
Claim 14
Dependent Claim
85 words
The system of claim 1, further comprising: address resolution server provided for each ATM network for processing an address resolution request from said each ATM network by relaying the address resolution request to another address resolution server for another ATM network when a target of the address resolution request does not belong to said each ATM network, and returning information indicative of the connection identifier of an ATM connection which is connected to the destination side connection-less service function means, to said each ATM network.
Claim 15
Dependent Claim
31 words
The system of claim 1, wherein the destination side connection-less service function means is one of the connection-less service function means which can deliver the datagram to the destination terminal directly.
Claim 16
Dependent Claim
43 words
The system of claim 1, wherein the destination side connection-less service function means is one of the connection-less service function means which logically belongs to the destination side network but which is physically located in a network other than the destination side network.
Claim 17
Dependent Claim
15 words
The system of claim 1, wherein the ATM networks are given in forms of ATM-LANs.
Claim 18
Dependent Claim
20 words
The system of claim 1, wherein the connection identifier is given in terms of VCI/VPI value specifying the ATM connection.
Claim 19
Dependent Claim
16 words
The system of claim 1, wherein the ATM networks are arranged in a hierarchical network topology.
Claim 20
Dependent Claim
16 words
The system of claim 1, wherein the ATM networks are arranged in a flat network topology.
Claim 21
Independent Claim
153 words
A method for ATM communication in an ATM communication system formed by a plurality of networks, including ATM networks and and containing a plurality of terminals, the plurality of networks inter-networking with each other, the destination side network including a destination terminal, and a plurality of connection-less service function means for managing connection-less datagram transmission in the plurality of networks, the plurality of connection-less service function means including a destination side connection-less service function means which is associated with the destination side network, the method comprising the steps of: obtaining a connection identifier for identifying an ATM connection connected to the destination side connection-less service function means; and transmitting a datagram from each terminal of the plurality of terminals to the destination side connection-less service function means through the ATM connection identified by the obtained connection identifier so as to perform the connection-less datagram transmission from said each terminal to the destination terminal.
Claim 22
Independent Claim
153 words
A method for ATM communication in an ATM communication system formed by a plurality of networks, including ATM networks and and containing a plurality of terminals, the plurality of networks inter-networking with each other, the destination side network including a destination terminal, and a plurality of connection-less service function means for managing connection-less datagram transmission in the plurality of networks, the plurality of connection-less service function means including a destination side connection-less service function means which is associated with the destination side network, the method comprising the steps of: obtaining a connection identifier for identifying an ATM connection connected to the destination side connection-less service function means; and transmitting a datagram from each terminal of the plurality of terminals to the destination side connection-less service function means through the ATM connection identified by the obtained connection identifier so as to perform the connection-less datagram transmission from said each terminal to the destination terminal.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2001-05-04 | 2001-11-03 | 2002-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-05-04 | 2005-11-03 | 2006-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-05-04 | 2009-11-03 | 2010-05-05 | $7700.00 | Window Closed / Lapsed |