Information carrier, device for encoding, method for encoding, device for decoding and method for decoding
CA 2333174 A1 · Owner: Koninklijke Philips Electronics N.V. · Inventors: Baggen, Constant P. M. J.; Coene, Willem M. J. M.; Van Dijk, Marten E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to an information carrier comprising runlength limited marks in a track. The runlengths of the marks represent main channel bits and variations of a further parameter of the marks representing secondary channel bits. Not all marks have said variations only marks of at least a , predetermined runlength have said variations. The invention further relates to a device for encoding, a method for encoding a device for encoding and a , method for decoding.
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 March 7, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 7, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 7, 2022.
- 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.