Error determination in a communication system
CA 2340769 A1 · Owner: Siemens Aktiengesellschaft · Inventors: Waldhauser, Richard; Sander, Horst; Stelzl, Rudolf
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a method for detecting errors in a communication system, especially an ATM communication system (Asynchronous Transfer Mode). In the absence of communication signals monitoring signals are applied at the beginning of at least one monitoring line (7 8) of said communication system , and then extracted at the end of said monitoring line (7 8). According to , said invention, the monitoring line (7 8) is located within a communication , device (1) of said communication system. The absence of signals at the end of the monitoring line (7, 8) corresponds to the presence of an error in the communication device (1). In addition, a communication device (1) has a …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed August 2, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 2, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 2, 2021.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
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Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.