1. Not finding help here? Sign up for a free 30min tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Run length limite4d (2,7)

  1. Mar 23, 2013 #1
    Hello, I am trying to represent a binary word as different types of encoding. I am OK with all the different forms apart from the last one.
    That last step is to represent it as RLL(2,7). However I do not know how to do it. After researching on the internet, it seems very complicated to do this.
    Is anyone able to help out with this ?

    Thank you kindly for any assistance.
     

    Attached Files:

    • rll.jpg
      rll.jpg
      File size:
      18.2 KB
      Views:
      50
  2. jcsd
  3. Mar 23, 2013 #2

    rcgldr

    User Avatar
    Homework Helper

    Best article I could find. Scroll down to mid page for RLL (2,7) information. Since the encoding is done at the sector level, usually 512 bytes, there may be some extra bits at the end in order to match the allowed data patterns. The encoder adds the extra bits and the decoder ignores the extra bits:

    magnetic_storage.htm
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?
Draft saved Draft deleted