US Patent No: 7,539,414
Number of patents in Portfolio can not be more than 2000
Optical network with a void filling protocol independent of bit rate
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May 26, 2009
Issued date -
Jul 7, 2004
filing date -
10/885,058
serial no -
In Force
status
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Abstract
A communications station (4-i) for a WDM ring network is adapted to insert into an optical fiber (2) packets of optical signals carried by at least one wavelength and having a propagation direction in common with at least one other communications station. The station (4-i) comprises, firstly, optical detection means (17) adapted to observe the traffic in said optical fiber (2) associated with said common wavelength and to deliver detection signals representative of the absence of packets in the optical fiber (2) at the detected wavelength for a duration exceeding a duration threshold and ii) control means (11) adapted, in the event of reception of a detection signal associated with the detected wavelength to determine the remaining time before the end of the current session, and then to instruct the insertion into the optical fiber (2) of a packet awaiting transmission, at the detected wavelength, if the remaining time before the end of the current session is greater than the time necessary for inserting the packet awaiting transmission into the fiber.
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First Claim
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International Classification(s)
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Cited Art
| Patent Info | (Count) | # Cites | Year |
|---|---|---|---|
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| 6,804,255 Hardware implementation of channel scheduling algorithms for optical routers with FDL buffers | 9 | 2000 | |
| 2002/0154,360 Discrete time sequence model for slotted and synchronous switching of optical burst signals | 20 | 2001 | |
| 2002/0118,420 Method and apparatus for transmitting over a slotted OBS network in in-band mode | 8 | 2001 | |
| 2005/0131,940 Dynamic method of inserting data a the nodes of an optical transmission network | 2 | 2004 | |
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| 5,229,993 Control of access through local carrier sensing for high data rate networks and control of access of synchronous messages through circulating reservation packets | 44 | 1991 | |
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| 2004/0146,299 Periodic optical packet switching | 3 | 2003 | |
Patent Citation Ranking
Maintenance Fees
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| 3.5 Year Payment | $1600.00 | $800.00 | $400.00 | Nov 26, 2012 |
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| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Nov 26, 2020 |
| Fee | Large entity fee | small entity fee | micro entity fee |
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