Data alignment
CA 2079475 A1 · Owner: Faulkner, David W. · Inventors: Faulkner, David W.; Cook, Andrew R. J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In a method of aligning a data receiver (2) with a data transmission from, e.g. a head-end station (1) data is encoded for, transmission with a hybrid differential coding scheme including at least one invalid codeword, and the coding scheme for the differential part of the codewords includes the invalid codeword(s) used for word alignment of the receiver (2). At the receiver (2) the data is detected in phase with a local clock. The phase of the local clock is modified in response to any occurrence in the detected data of an invalid codeword.
Read the whole patent
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 April 10, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 10, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 10, 2013.
- 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
Timeline From CIPO dates
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.