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- Newsgroups: sci.crypt
- Path: sparky!uunet!paladin.american.edu!gatech!udel!louie!calvin.ee.udel.edu!donovan
- From: donovan@calvin.ee.udel.edu (Greg Donovan)
- Subject: Re: Any way to *CREATE* Vcr+ (VCR PLUS) codes??? (please read)
- Message-ID: <1993Jan4.214810.19809@udel.edu>
- Summary: We got code !
- Keywords: VCR+ patent
- Sender: usenet@udel.edu (USENET News Service)
- Nntp-Posting-Host: calvin.ee.udel.edu
- Organization: University of Delaware, Newark
- References: <1992Dec31.031552.17197@netcom.com> <C0CED1.60H@metaflow.com> <1iaa91INNhgr@agate.berkeley.edu>
- Date: Mon, 4 Jan 1993 21:48:10 GMT
- Lines: 40
-
- In article <1iaa91INNhgr@agate.berkeley.edu> shirriff@sprite.berkeley.edu (Ken Shirriff) writes:
- >In article <C0CED1.60H@metaflow.com> rschnapp@metaflow.com (Russ Schnapp) writes:
- >>Is it really necessary to reverse-engineer the VCR+ algorithm? I thought
- >>that VCR+ is patented. If you can obtain the patent number, then the patent
- >>can be retrieved. The patent _must_ disclose the method used.
- >
- >The patent doesn't include enough information to decode the VCR+ code.
- >It explains how to make/decode _a_ VCR code, but not _the_ VCR+ code. That
- >is, there are a bunch of specific details you need that aren't included. (As
- >an analogy, the RSA patent won't help you decode a particular RSA-encoded
- >message.)
- >
-
- Look in alt.sources or rec.video. There is a posting containing a shar
- of code to encode/decode numbers and times. Here is the description
- from the header:
-
- This ZIP archive holds three files
- X readme.txt
- X encode.c
- X decode.c
- X
- X
- decode.c is source program that reads a VCRPLUS code
- number value you find in the newspaper and calculates
- X date_of_the_tv_program
- X starting_time_of_the_tv_program
- X run_length_of_the_tv_program
- X
- X
- encode.c is source program that reads a date, start time,
- and run length then turns them into a VCRPLUS code number
- like the ones in the newspaper.
-
-
- Good luck,
-
- Greg
-
- These are my words and thoughts, no one elses.
-