Dvd random shuffle method
CA 2483689 C · Owner: Patterson, William J. · Inventors: Patterson, William J.; Long, David; Kinzer, Craig E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method for randomly shuffling through a large set of video and/or audio clips using a media player and related readable media is disclosed. In one form, the total number of entries in the set of clips is a prime number. An initial current clip value is randomly generated between one and the total number of entries in the set. A jump value is randomly generated between one and the total number of entries in the set minus one. To select a subsequent current clip, the current clip value and the jump value are added together. This sum is divided by the number of entries in the set. The remainder from this division is saved as the subsequent current clip value.
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 May 13, 2003 and granted October 30, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 13, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 13, 2025.
- 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.