Path: utzoo!attcan!uunet!bu.edu!snorkelwacker!apple!goofy.apple.com!esmith From: esmith@goofy.apple.com (Eric Smith) Newsgroups: sci.electronics Subject: Re: Digital Out (Philips CD620) Message-ID: Date: 12 Sep 90 21:16:50 GMT References: <704@hexagon.se> <1770018@otter.hpl.hp.com> Sender: usenet@Apple.COM Organization: Frobozz Magic Widget Company Lines: 19 In-reply-to: sgm@otter.hpl.hp.com's message of 12 Sep 90 13:52:48 GMT In article <1770018@otter.hpl.hp.com> sgm@otter.hpl.hp.com (Steve Methley) writes: > A little confusion here, I think (correct me if I'm wrong): Data is > of information bits and when a coding scheme eg Biphase Mark is applied > _symbols_ are the result, which are transmitted along the line. In > Biphase Mark, what doesn't matter is the polarity of the _symbols_. > Data 1's are data 1's whether the _code_ is upside down or not. > ... No confusion on this point. I was stating the same thing. > What sometimes happens is that the data is inverted before coding ... I hadn't heard of that. How disgusting! -- Eric L. Smith Opinions expressed herein do not necessarily reflect those esmith@apple.com of my employer, friends, family, computer, or even me! :-)