Drawing data producing apparatus and drawing data producing method
CA 2117855 C · Owner: Sony Computer Entertainment Inc. · Inventors: Yutaka, Teiji
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A drawing data producing apparatus having a plurality of sequence tables into which sequence data indicating processing sequences of a plurality of blocks obtained by dividing a picture are written every objects constituting the picture with information in a Z-direction in three dimensional coordinates of representative pixels of the respective blocks being as addresses; and a sorting control section for carrying out in a stepwise manner, Z-sorting of a plurality of sequence tables therebetween to produce drawing data by stepwise Z-sorting of a plurality of sequence tables therebetween. Thus even in the case where objects physically divided are present at depths close to each other this …
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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
- Filed October 11, 1994 and granted May 27, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 11, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 11, 2016.
- 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.