Asymmetric rll coding
CA 1291561 C · Owner: International Business Machines Corporation · Inventors: Davie, Neil R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Method and apparatus for generating asymmetrically constrained run-length-limited encoded data from a serialized binary string of 1's and 0's. The method comprises the steps of encoding the input data bits using a run-length-limited-encoding constraint in the form of M/N (d,k), where M is the number of input data bits N is the, number of output bits associated therewith d is the minimum, number of 0 data bits between adjacent data bit 1's and k is the maximum number of 0 data bits between adjacent 1's; and adjusting the values of d and k, so as to alternate between a value d1 and d2 and a value k1 and k2 respectively where d1 ? d2, The apparatus comprises means for generating N output data …
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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 October 29, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 29, 2008.
- 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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Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.