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- Newsgroups: sci.crypt
- Path: sparky!uunet!elroy.jpl.nasa.gov!news.claremont.edu!nntp-server.caltech.edu!draco.macsch.com!portia.si.macsch.com!bnc
- From: bnc@portia.si.macsch.com (Brian Casey)
- Subject: Re: Any way to *CREATE* Vcr+ (VCR PLUS) codes??? (please read)
- Message-ID: <1993Jan6.231735.13066@draco.macsch.com>
- Keywords: VCR+ patent
- Sender: usenet@draco.macsch.com (Usenet Poster)
- Organization: The MacNeal-Schwendler Corporation
- References: <a_rubin.726253952@dn66> <1993Jan5.191138.16420@netcom.com> <C0F4nF.7Eu@panix.com>
- Date: Wed, 6 Jan 93 23:17:35 GMT
- Lines: 42
-
- In article <C0F4nF.7Eu@panix.com> oppedahl@panix.com (Carl Oppedahl) writes:
- >In <1993Jan5.191138.16420@netcom.com> strnlght@netcom.com (David Sternlight) writes:
- >
- >
- >>As I understand things from my conversations with the inventor of the
- >>VCR+ ... [stuff deleted]
- >>they provide the program to the stations on very stringent security
- >>terms, to compute the codes. That was my info as of six months
- >>ago--it may have changed--dunno. Back then, I noticed that two
- >>sources of published codes, the L.A. Times and TV guide occasionally
- >>had different codes for the same program, which suggests other
- >>than a central source. (They weren't typos, and both worked.)
- >
- >I trust that readers of this group have no trouble figuring out why
- >this would happen -- right?
- >
- >The VCR+ people provide programs to the LA Times, and to TV Guide,
- >that are not identical. Sure the codes work the same from both versions
- >of the program, but the difference in what is printed in the guide
- >makes it possible for the VCR+ people to figure out _which_ copy
- >of the program was used to create a given set of plus codes.
- >That way if, say, LA Times started selling codes to TV Guide, or to
- >someone else, the VCR+ people would be able to blame the LA Times.
- >We intellectual property lawyers call that a "spike".
- >
- >
- >--
- >Carl Oppedahl AA2KW (intellectual property lawyer)
- >30 Rockefeller Plaza
- >New York, NY 10112-0228
- >voice 212-408-2578 fax 212-765-2519
-
- Unfortunately, this is not correct. The majority of codes
- for both the LA Times and the TV Guide are identical. The
- major class of programs where differences occur is with
- movies. The LA Times produces codes from the beginning of
- the movie until the start of the next listed program, while
- TV Guide produces codes for the exact running time of the
- movie.
-
- Brian Casey
- bnc@macsch.com
-