Jitter measurement method and apparatus
CA 1269463 C · Owner: Scott, Peter M. · Inventors: Mcfarlane, William; Scott, Peter M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method and apparatus is provided for measuring the timing jitter of a tributary data stream that has been multiplexed into a higher-rate multiplex stream using pulse stuffing techniques. The required jitter measurement is carried out by monitoring the relevant stuffing control bits of the multiplex stream. In one embodiment the apparatus, comprises a first microprocessor for determining the tributary stuffing ratio from the stuffing control bits and, a second microprocessor operative to determine a current jitter signal value by using both the stuff information contained in the stuffing control bits and the stuffing, ratio determined by the first microprocessor. The second microprocessor …
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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
- Granted May 22, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 22, 2007.
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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.