Expired Canadian patentCanada
Method and apparatus for implementing optimum prml codes
CA 1262189 C · Owner: Eggenberger, John Scott · Inventors: Patel, Arvind, Motibhai; Eggenberger, John Scott
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Rate 8/9, constrained codes having run length limitation parameters (0, 4/4) and (0, 3/63 are provided for any partial response (PR) signaling system employing maximum likelihood (ML) detection.
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
- Granted October 3, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 3, 2006.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMarch 19, 1987
GrantedOctober 3, 1989
Term endedOctober 3, 2006
Patent numberCA 1262189 C
Classification (IPC)H03M7/46 +1 more
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.