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:
Aug. 17, 2004
Filed:
Sep. 02, 1998
Martin Sproat, Stevenage, GB;
Julian Frank Barry Cable, Stortford, GB;
Simon Daniel Brueckheimer, London, GB;
Michael Flynn Thomas, Plano, TX (US);
Andrew Geoffrey Tomlins, Harlow, GB;
David John Stacey, Stanstead Abbots, GB;
John Andrew Shotton, Wickford, GB;
Fai Tsang, South Woodham Ferrers, GB;
Stephen Rylant Evans, Welwyn Garden City, GB;
William Smith, Hertford, GB;
Nortel Networks Limited, St. Laurent, CA;
Abstract
A method and apparatus for handling persistence measurement of channel associated signaling for a plurality of line circuits, eg, T1, E1, OC3, STM 1 circuits, which extracts channel associated signaling data from a plurality of line circuits; assembles the channel associated signaling data into a data frame; contains the data frame in a suitable carrier, eg, an AAL 0 cell; monitors a continuous stream of the data frames, to check for changes in line status; and generates an event message data frame when a persistent change of line state has been detected. The extracting of associated signaling data may be provided on a separate card to a call control processor, and using separate processor functionality. A data processing load of a prior art call control processor which would otherwise be taken up in channel associated signaling persistence measurements may be alleviated, and the data processing burden on a prior art call control processor for handling persistence measurements is separated off and handled by the data processing apparatus and method according to the present disclosure.