Newsgroups: comp.speech
Path: pavo.csi.cam.ac.uk!warwick!uknet!pipex!uunet!news.cnri.reston.va.us!newsserver.jvnc.net!howland.reston.ans.net!gatech!news-feed-1.peachnet.edu!umn.edu!csus.edu!netcom.com!netcomsv!kwiudl.kwi.com!ra-svr!davidr
From: davidr@kwi.com (David Rivkin)
Subject: PASC and MUSICAM
Message-ID: <CA843I.ExJ@kwiudl.kwi.com>
Sender: usenet@kwiudl.kwi.com
Reply-To: davidr@kwi.com
Organization: KnowledgeWare, Inc
Date: Thu, 15 Jul 1993 20:40:30 GMT
Lines: 9

I just got off the phone with Philips Semiconductor.  They told me that the PASC algorithm is something that you have to licence from them (ie. patented) even though it is written up in many IEEE journals and other sources.  Now to be fair, the guy I spoke with said he was going to check into it some more.  He also said that MUSICAM is for licence only, yet I have many articles on that one too.  How can companies say something is patented and enforce a patent on a compression method (a mathematical a
hm supposedly not patentable in the first place) when they have published it somewhere?  I really can not believe that our patent system is so screwed up, and this is not the only place I run into stupid patents.  I also do not believe in these proprietary compression methods, especially ADPCM ones, give me a break!

David Rivkin
 




