The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 11, 2005
Filed:
Dec. 22, 1999
Andrew Geoffrey Tomlins, Harlow, GB;
Simon Daniel Brueckheimer, London, GB;
David John Stacey, Stansted Abbotts, GB;
John a Shotton, Wickford, GB;
Osama Bhagat, Harlow, GB;
Greg Bernstein, Harlow, GB;
Andrew Geoffrey Tomlins, Harlow, GB;
Simon Daniel Brueckheimer, London, GB;
David John Stacey, Stansted Abbotts, GB;
John A Shotton, Wickford, GB;
Osama Bhagat, Harlow, GB;
Greg Bernstein, Harlow, GB;
Nortel Networks Limited, St. Laurent, CA;
Abstract
A method of adapting synchronous time division multiplexed (TDM) traffic at an interface between a synchronous network in which the traffic is transported in frames identified by corresponding pointers and labels and an asynchronous network in which the adapted traffic is transported in cells, the method comprising mapping said synchronous frames into primary multiplexed groups, mapping each said primary multiplexed group into traffic cells in a respective asynchronous virtual channel, and providing that virtual circuit with a corresponding virtual channel indicator, and wherein said pointers and labels are mapped into one or more separate asynchronous cells for transport ahead or said traffic cells.