Method of and device for storing and reading digital information, at option protected or not by an error correcting code
CA 1280208 C · Owner: Koninklijke Philips Electronics N.V. · Inventors: Suzuki, Tadao; Van Den Hoven, Lambertus M.C.; Van Luyt, Balthasar A.G.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Method of and device for storing and reading digital information at, option protected or not by an error correcting code. The information stored on a medium (20) in the described system is protected by a double symbol correcting code involving interleaving between the codes. After reading and execution of the error protection, the information is organized in sectors. Subsequent to synchronization information and header information such a sector, contains sub-header information. There is provided a detector (30) for a first and a second sub-mode indication value. In the former case the sector contains further error protection information for which purpose, a special decoder (34) is …
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 February 12, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 12, 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
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.