Path: utzoo!telecom-request Date: Mon, 13 May 91 16:33:04 GMT From: Barry Margolin Newsgroups: comp.dcom.telecom Subject: Re: Hayes Wins Damages on its Command Set Patent Reply-To: think!barmar@bloom-beacon.mit.edu Message-ID: Organization: Thinking Machines Corporation, Cambridge MA, USA Sender: Telecom@eecs.nwu.edu Approved: Telecom@eecs.nwu.edu X-Submissions-To: telecom@eecs.nwu.edu X-Administrivia-To: telecom-request@eecs.nwu.edu X-Telecom-Digest: Volume 11, Issue 355, Message 4 of 9 Lines: 22 In article splee@gnu.ai.mit.edu (Seng-Poh Lee, Speedy) wrote -- [Moderator's Note: See earlier messages this issue for text. PAT] If you had read the article carefully, you would have seen that it is not the AT command set that is patented, it is the escape sequence with guard time (i.e. the fact that you have to pause for a second before and after the "+++" to go to command mode). Not all AT modems do this. Also, do you know for a fact that the modem manufacturers that you mentioned above have not signed licenses with Hayes? I'll bet most of them have. Maybe not specifically for this patent, but probably general cross-license agreements. That's common in the manufacturing world. Barry Margolin, Thinking Machines Corp. barmar@think.com {uunet,harvard}!think!barmar