US6205152B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Frame relay-to-ATM interface circuit and method of operation
Assignee: Fujitsu Ltd
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Filing: 1997-12-31
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Granted: 2001-03-20
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Expires: 2017-12-31
Abstract
Abstract There is disclosed, for use in a processing network containing a first node operable to transmit and receive frame relay data and a second node operable to transmit and receive asynchronous transfer mode (ATM) data, a network interface for converting the frame relay data to ATM data comprising: 1) a frame relay interface circuit operable to receive the frame relay data from the first node; 2) an ATM interface circuit operable to transmit the ATM data to the second node; 3) a data bus for coupling the frame relay interface circuit and the ATM interface circuit, the data bus operable to transfer frame payload data from the frame relay interface circuit to the ATM interface circuit; 4) a data traffic controller operable to receive frame header data from the frame relay interface circuit and control transfers of the frame payload data from the frame relay interface circuit to the ATM interface circuit; and 5) a bridge for coupling the data traffic controller to the data bus, the bridge isolating the data traffic controller from the transfers of the frame payload data.
Inventors
- 👤 Michael J. Von Ahnen
- 👤 Sreejith Sreedharan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 06:38
CPC Classifications
H; H04; H04L; H04L12/00; H04L12/66; H04Q; H04Q11/00; H04Q11/04; H04Q11/0428; H04Q11/0478; H04L12/54; H04L12/56; H04L12/5601; H04L2012/5614; H04L2012/5618; H04L2012/5629; H04L2012/5631; H04L2012/5636; H04L2012/5637; H04L2012/5638; H04L2012/5665; H04L2012/567
Claims Analysis
Total Claims: 36
Claim 1
Independent Claim
174 words
For use in a processing network containing a first node operable to transmit and receive frame relay data and a second node operable to transmit and receive asynchronous transfer mode (ATM) data, a network interface for converting said frame relay data to said ATM data comprising: a frame relay interface circuit operable to receive said frame relay data from said first node; an ATM interface circuit operable to transmit said ATM data to said second node; a data bus for coupling said frame relay interface circuit and said ATM interface circuit, said data bus operable to transfer frame payload data from said frame relay interface circuit to said ATM interface circuit; a data traffic controller operable to receive frame header data from said frame relay interface circuit and control transfers of said frame payload data from said frame relay interface circuit to said ATM interface circuit; and a bridge for coupling said data traffic controller to said data bus, said bridge isolating said data traffic controller from said transfers of said frame payload data.
Claim 2
Dependent Claim
174 words
For use in a processing network containing a first node operable to transmit and receive frame relay data and a second node operable to transmit and receive asynchronous transfer mode (ATM) data, a network interface for converting said frame relay data to said ATM data comprising: a frame relay interface circuit operable to receive said frame relay data from said first node; an ATM interface circuit operable to transmit said ATM data to said second node; a data bus for coupling said frame relay interface circuit and said ATM interface circuit, said data bus operable to transfer frame payload data from said frame relay interface circuit to said ATM interface circuit; a data traffic controller operable to receive frame header data from said frame relay interface circuit and control transfers of said frame payload data from said frame relay interface circuit to said ATM interface circuit; and a bridge for coupling said data traffic controller to said data bus, said bridge isolating said data traffic controller from said transfers of said frame payload data.
Claim 3
Dependent Claim
35 words
The network interface set forth in claim 1 wherein said frame header data includes a committed information rate associated with a selected connection and said data traffic controller determines a bandwidth availability for said connection.
Claim 4
Dependent Claim
26 words
The network interface set forth in claim 2 wherein said data traffic controller performs a leaky bucket calculation to determine said bandwidth availability for said connection.
Claim 5
Dependent Claim
25 words
The network interface set forth in claim 3 wherein said data traffic controller comprises a programmable logic gate array for performing said leaky bucket calculation.
Claim 6
Dependent Claim
24 words
The network interface set forth in claim 1 wherein said data traffic controller comprises a processor and a local memory associated with said processor.
Claim 7
Dependent Claim
33 words
The network interface set forth in claim 5 wherein said frame header data includes a committed information rate associated with a selected connection and said processor determines a bandwidth availability for said connection.
Claim 8
Dependent Claim
24 words
The network interface set forth in claim 6 wherein said processor performs a leaky bucket calculation to determine said bandwidth availability for said connection.
Claim 9
Dependent Claim
20 words
The network interface set forth in claim 5 wherein said data traffic controller further comprises a programmable logic gate array.
Claim 10
Dependent Claim
36 words
The network interface set forth in claim 8 wherein said frame header data includes a committed information rate associated with a selected connection and said programmable logic gate array determines a bandwidth availability for said connection.
Claim 11
Dependent Claim
27 words
The network interface set forth in claim 9 wherein said programmable logic gate array performs a leaky bucket calculation to determine said bandwidth availability for said connection.
Claim 12
Dependent Claim
24 words
The network interface set forth in claim 1 further comprising a payload memory coupled to said data bus for storing said frame payload data.
Claim 13
Dependent Claim
171 words
A processing network comprising: a first node operable to transmit and receive frame relay data; a second node operable to transmit and receive asynchronous transfer mode (ATM) data; and a network interface for converting said frame relay data to said ATM data comprising: a frame relay interface circuit operable to receive said frame relay data from said first node; an ATM interface circuit operable to transmit said ATM data to said second node; a data bus for coupling said frame relay interface circuit and said ATM interface circuit, said data bus operable to transfer frame payload data from said frame relay interface circuit to said ATM interface circuit; a data traffic controller operable to receive frame header data from said frame relay interface circuit and control transfers of said frame payload data from said frame relay interface circuit to said ATM interface circuit; and a bridge for coupling said data traffic controller to said data bus, said bridge isolating said data traffic controller from said transfers of said frame payload data.
Claim 14
Dependent Claim
171 words
A processing network comprising: a first node operable to transmit and receive frame relay data; a second node operable to transmit and receive asynchronous transfer mode (ATM) data; and a network interface for converting said frame relay data to said ATM data comprising: a frame relay interface circuit operable to receive said frame relay data from said first node; an ATM interface circuit operable to transmit said ATM data to said second node; a data bus for coupling said frame relay interface circuit and said ATM interface circuit, said data bus operable to transfer frame payload data from said frame relay interface circuit to said ATM interface circuit; a data traffic controller operable to receive frame header data from said frame relay interface circuit and control transfers of said frame payload data from said frame relay interface circuit to said ATM interface circuit; and a bridge for coupling said data traffic controller to said data bus, said bridge isolating said data traffic controller from said transfers of said frame payload data.
Claim 15
Dependent Claim
35 words
The processing network set forth in claim 12 wherein said frame header data includes a committed information rate associated with a selected connection and said data traffic controller determines a bandwidth availability for said connection.
Claim 16
Dependent Claim
26 words
The processing network set forth in claim 13 wherein said data traffic controller performs a leaky bucket calculation to determine said bandwidth availability for said connection.
Claim 17
Dependent Claim
25 words
The processing network set forth in claim 14 wherein said data traffic controller comprises a programmable logic gate array for performing said leaky bucket calculation.
Claim 18
Dependent Claim
24 words
The processing network set forth in claim 12 wherein said data traffic controller comprises a processor and a local memory associated with said processor.
Claim 19
Dependent Claim
33 words
The processing network set forth in claim 16 wherein said frame header data includes a committed information rate associated with a selected connection and said processor determines a bandwidth availability for said connection.
Claim 20
Dependent Claim
24 words
The processing network set forth in claim 17 wherein said processor performs a leaky bucket calculation to determine said bandwidth availability for said connection.
Claim 21
Dependent Claim
20 words
The processing network set forth in claim 16 wherein said data traffic controller further comprises a programmable logic gate array.
Claim 22
Dependent Claim
36 words
The processing network set forth in claim 19 wherein said frame header data includes a committed information rate associated with a selected connection and said programmable logic gate array determines a bandwidth availability for said connection.
Claim 23
Dependent Claim
27 words
The processing network set forth in claim 20 wherein said programmable logic gate array performs a leaky bucket calculation to determine said bandwidth availability for said connection.
Claim 24
Dependent Claim
24 words
The processing network set forth in claim 12 further comprising a payload memory coupled to said data bus for storing said frame payload data.
Claim 25
Dependent Claim
132 words
For use in a processing network containing a first node operable to transmit and receive frame relay data and a second node operable to transmit and receive asynchronous transfer mode (ATM) data, a method for converting frame relay data to ATM data comprising the steps of: receiving the frame relay data from the first node in a frame relay interface circuit; transferring the frame relay data to an ATM interface circuit across a data bus; transferring frame header data from the frame relay interface circuit to a data traffic controller via a bridge coupled to the data bus, wherein the bridge isolates the data traffic controller from the transfer of the frame relay data to the ATM interface circuit across the data bus; and transmitting the ATM data to the second node.
Claim 26
Dependent Claim
132 words
For use in a processing network containing a first node operable to transmit and receive frame relay data and a second node operable to transmit and receive asynchronous transfer mode (ATM) data, a method for converting frame relay data to ATM data comprising the steps of: receiving the frame relay data from the first node in a frame relay interface circuit; transferring the frame relay data to an ATM interface circuit across a data bus; transferring frame header data from the frame relay interface circuit to a data traffic controller via a bridge coupled to the data bus, wherein the bridge isolates the data traffic controller from the transfer of the frame relay data to the ATM interface circuit across the data bus; and transmitting the ATM data to the second node.
Claim 27
Dependent Claim
34 words
The method set forth in claim 23 wherein the frame header data includes a committed information rate associated with a selected connection and the data traffic controller determines a bandwidth availability for the connection.
Claim 28
Dependent Claim
25 words
The method set forth in claim 24 wherein the data traffic controller performs a leaky bucket calculation to determine the bandwidth availability for the connection.
Claim 29
Dependent Claim
24 words
The method set forth in claim 25 wherein the data traffic controller comprises a programmable logic gate array for performing the leaky bucket calculation.
Claim 30
Dependent Claim
23 words
The method set forth in claim 23 wherein the data traffic controller comprises a processor and a local memory associated with the processor.
Claim 31
Dependent Claim
32 words
The method set forth in claim 27 wherein the frame header data includes a committed information rate associated with a selected connection and the processor determines a bandwidth availability for the connection.
Claim 32
Dependent Claim
23 words
The method set forth in claim 28 wherein said processor performs a leaky bucket calculation to determine said bandwidth availability for said connection.
Claim 33
Dependent Claim
19 words
The method set forth in claim 27 wherein the data traffic controller further comprises a programmable logic gate array.
Claim 34
Dependent Claim
35 words
The method set forth in claim 30 wherein the frame header data includes a committed information rate associated with a selected connection and the programmable logic gate array determines a bandwidth availability for the connection.
Claim 35
Dependent Claim
27 words
The network interface set forth in claim 31 wherein the programmable logic gate array performs a leaky bucket calculation to determine the bandwidth availability for the connection.
Claim 36
Dependent Claim
24 words
The network interface set forth in claim 23 further comprising a payload memory coupled to the data bus for storing the frame payload data.
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) | 2004-03-19 | 2004-09-18 | 2005-03-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2008-03-19 | 2008-09-18 | 2009-03-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2012-03-19 | 2012-09-18 | 2013-03-20 | $7700.00 | Window Closed / Lapsed |