How The HDMI Cable Works

by: aydancorkern
Total views: 35
Word Count: 418

There are a number of very common misnomers when you are talking about HDMI technology. One of the most common is that a digital signal is innately better that a simple analog signal. Some people have it in their heads that the absence of analog to digital conversion will mean that their signal is in its most pure and undamaged form when it finally gets to the high definition television set. It is easy to think about a high definition, digital signal going straight from your high definition DVD player to your fancy high definition television. This signal transmission via your high definition television does not require a special step for encoding the information. HDMI has the benefit of transition minimized differential signaling (TMDS) to send information between your high definition home theater devices. TMDS is a special way of encoding the signals between devices to keep it from degrading as it travels along your cable to its intended destination. This is what happens during the process. The device sending information like a high definition DVD player or a Blu-ray player will encode the signal so the number of transitions is reduced between one (meaning on) and zero (meaning off). Think of each of these transitions as an instant drop off. When your signal travels, dropping off so quickly can begin to degrade the signal, wearing it away a little at a time. The encoding done before hand will help keep your signal quality steady because it reduces how many times your signal can drop off. This means it has less opportunity to degrade. There are two cables twisted around one another that carry the signal between your high definition devices. The first of these cables in this pair will carry the signal itself. The second of these cables carries an inverse copy of your signal. The device that receives all this information, like your high definition television, will decode the signal. IT will measure the differential. This means it looks at the difference between the signal it received from the first cable and the inverse of that same signal it received from the second cable. Using this information as a compensation for anything the signal lost, it will put the signal together into high grade usable information. This means that any degradation from one signal during the trip from one high definition device to the other can be made up by the other signal and vice versa.

About the Author

Visit Aydan Corkern's sites: http://www.hometheaterinstallation.biz/cities/home-theater-installation-houston.php http://www.hometheaterinstallation.biz/cities/home-theater-installation-newyork.php

---

Rating: Not yet rated

--Choose-- 0 1 2 3 4 5

Comments

No comments posted.

Add Comment

You do not have permission to comment. If you log in, you may be able to comment.