home *** CD-ROM | disk | FTP | other *** search
- Xref: sparky sci.electronics:15540 rec.video:11188
- Path: sparky!uunet!cs.utexas.edu!swrinde!elroy.jpl.nasa.gov!hanauma.jpl.nasa.gov!chu
- From: chu@hanauma.jpl.nasa.gov (Eugene Chu)
- Newsgroups: sci.electronics,rec.video
- Subject: Re: Macrovision
- Message-ID: <1992Sep12.100754.28503@elroy.jpl.nasa.gov>
- Date: 12 Sep 92 10:07:54 GMT
- References: <1992Sep2.041037.347@u.washington.edu> <1992Sep2.133450.18671@panix.com> <2859@perl-sun.dwrsun4.UUCP>
- Sender: news@elroy.jpl.nasa.gov (Usenet)
- Organization: SAR Systems Development & Processing, JPL
- Lines: 25
- Nntp-Posting-Host: hanauma.jpl.nasa.gov
-
- In article <2859@perl-sun.dwrsun4.UUCP> perl@dwrsun4.UUCP (Robert Perlberg) writes:
- >
- >Some years ago a VCR maker (forgot which one) came out with a machine
- >which used a different kind of AGC circuit which was not affected by
- >Macrovision. It was not their intention to defeat Macrovision, it just
- >worked out that way because Macrovision takes advantage of an
- >unintended behavioral characteristic of the extant AGC circuit. The
- >Macrovision people complained and the VCR maker modified the new
- >circuit so that it would reject a Macrovision signal.
- >
- >Robert Perlberg
-
- My old Sony Beta machine has never failed to record any tapes protected
- by Macrovision. I'm told this is quite common, as beta is supposed to
- be unaffected by Macrovision. However, I also have a newr SLV 585 HF
- that has successfully recorded a few Macrovisioned tapes that a friend's
- JVC could not handle. Could it be that Sony's AGC circuits are too slow
- to respond to Macrovision's interference?
-
- eyc
- --
- >:< Me: Eugene Chu (Mr. Butterfly) | Radar Science & Engineering >:<
- >:< chu@hanauma.jpl.nasa.gov | Jet Propulsion Laboratory >:<
- "T'is better to light a single candle than to curse the darkness"
- But t'is so much easier to curse the darkness.
-