Sharp's AQUOS BD-HDW20 Blu-ray recorder with 1TB disk: zero-to-numb in just 0.8 seconds

Original post: click here

Subscribe to these comments

Reader Comments (Page 1 of 1)

Neutral

CB @ Sep 26th 2007 7:11AM

Well you would think that, but i'll give us all a short lesson in digital transmission over cables as I'm a telecom engineer.
As you send a '1' pulse down a cable it charges up , much the same as a capacitor and then slowly release this voltage as it changes to a '0', this all means your lovely square wave ends up as all notchy and droopy, there are many ways that the recieving and sending equipment cope with this, by inverting a string of '1's for instance or they'll charge up the cable too much.
Dirty contacts can make the problem worse by introducing another component effect, the error correcting circuitry copes with it all, but the more you make it work the more the equipment is guessing.
It's miniscule and the capacitor effect only really troubles lengthy Telco cables.

Add your comments

New Users

Name

E-mail

Current Users

E-mail:

Password

Remember Me

E-Mail me when someone replies to this comment

replying to thread #7815988

Add your comments:

Please keep your comments relevant to this blog entry. Email addresses are never displayed, but they are required to confirm your comments.

When you enter your name and email address, you'll be sent a link to confirm your comment, and a password. To leave another comment, just use that password.

To create a live link, simply type the URL (including http://) or email address and we will make it a live link for you. You can put up to 3 URLs in your comments. Line breaks and paragraphs are automatically converted — no need to use <p> or <br /> tags.

Please note that gratuitous links to your site are viewed as spam and may result in removed comments. And yes, comments are moderated.