Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!rutgers!usc!bloom-beacon!tut.cis.ohio-state.edu!cs.utexas.edu!ico!ism780c!haddock!kencr
From: kencr@haddock.ima.isc.com (Kenny Crudup)
Newsgroups: sci.electronics
Subject: Re: NTSC-PAL (in)compatibility
Message-ID: <13827@haddock.ima.isc.com>
Date: 26 Jun 89 13:09:33 GMT
References: <124@nisca.ircc.ohio-state.edu> <566@axis.fr> <367@ctycal.UUCP>
Reply-To: kencr@haddock.ima.isc.com (Kenny Crudup)
Organization: Interactive Systems, Cambridge MA
Lines: 15

In article <367@ctycal.UUCP> ingoldsb@ctycal.COM (Terry Ingoldsby) says:
>First of all, unless I'm very mistaken ordinary VCR's do not separate the
>chrominance and luminance info when they store it on the tape.  It is all
>stored together.  Somebody please correct me if I'm wrong about this.
>  Terry Ingoldsby                       ctycal!ingoldsb@calgary.UUCP

The chroma is seperated and 'mixed-down' (for want of a better term this
early a.m.) to a lower frequency (680k?) so that head speed changes don't
screw the color up too bad.

-- 
Kenneth R. Crudup, Contractor, Interactive Systems, Cambridge MA
StarTrekV 3'rd favorite line: "Oh yeah?! Beam THIS up, pal!!" - D. Letterman
E-Mail, (which tends not to be delivered :-( )	   Phone (617) 661 7474 x238
{encore, harvard, spdcc, think}!ima!haddock!kencr  kencr@haddock.ima.isc.com