US5400337A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for ATM switch core interface
Assignee: Ericsson AB
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Filing: 1994-01-05
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Granted: 1995-03-21
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Expires: 2014-01-05
Abstract
Abstract A method of switching data packets in asynchronous transfer mode (ATM) switches is provided. In order to minimize the functionality of the switch matrix itself, the switch core interface provides momentary physical routing information through the switch core immediately prior to applying a packet to the core.
Inventors
- 👤 Ernst A. Munter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:52
CPC Classifications
H; H04; H04L; H04L49/00; H04L49/30; H04L49/3081; H04L49/309; H04L49/15; H04L49/1553; H04L49/25; H04L49/256; H04L49/3009; H04L12/00; H04L12/54; H04L12/56; H04L12/5601; H04L2012/5638; H04L2012/5646; H04L2012/5652
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
114 words
A method for interfacing an incoming data stream with an asynchronous transfer mode, ATM, switch core, comprising: packetizing the incoming data stream into data packets having destination header and data sections; converting bits in said destination header of each of said data packets into a logical switch connection number, SCN, and immediately before application of each of said data sections to the ATM switch core, converting said logical SCN into physical routing information for routing said each of said data sections between selected input and output ports of said ATM switch core, and using said physical routing information to select momentarily available routes between said selected input and output ports of said switch core.
Claim 2
Independent Claim
114 words
A method for interfacing an incoming data stream with an asynchronous transfer mode, ATM, switch core, comprising: packetizing the incoming data stream into data packets having destination header and data sections; converting bits in said destination header of each of said data packets into a logical switch connection number, SCN, and immediately before application of each of said data sections to the ATM switch core, converting said logical SCN into physical routing information for routing said each of said data sections between selected input and output ports of said ATM switch core, and using said physical routing information to select momentarily available routes between said selected input and output ports of said switch core.
Claim 3
Dependent Claim
63 words
The method for interfacing an incoming data stream with an ATM switch core as defined in claim 1, wherein the step of converting said logical SCN into said physical routing information is accomplished by translating a header containing said logical SCN into a physical header containing said momentarily available routes between pairs of said selected input and output ports of said switch core.
Claim 4
Dependent Claim
34 words
The method for interfacing an incoming data stream with an ATM switch core as defined in claim 2, wherein said physical header momentarily controls routing between input and output ports of said switch core.
Claim 5
Independent Claim
33 words
The method for interfacing an incoming data stream with an ATM switch core as defined in claim wherein said physical header is itself routed between input and output ports of said switch core.
References Cited (Backward Citations)
US4947388A
Cited
US5159591A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1998-03-20 | 1998-09-19 | 1999-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-03-20 | 2002-09-19 | 2003-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-03-20 | 2006-09-19 | 2007-03-21 | $7700.00 | Window Closed / Lapsed |