Method and apparatus for deskewing wdm data transmitted through a dispersive medium
CA 1234932 A · Owner: International Business Machines Corporation · Inventors: Haas, Lee C.; Loeb, Mitchell L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract, When a byte of digital data is transmitted through a dispersive medium using frequency or wavelength division multiplexing (WDM) techniques, individual bits in the byte are normally delayed different amounts of time. This is referred to as bit skew. WDM apparatus is described along with a system for deskewing WDM data received after transit through a dispersive medium. Two bits in a given byte of data are detected. The relative times of arrival of the remaining bits in a byte are predicted using the relative delay between the two detected bits and the known frequency-related dispersion characteristics of the transmission medium. Certain bits in each received byte may be delayed …
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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 April 5, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 5, 2005.
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Timeline
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Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.