4-ary (1,2) run-length limited code for optical storage channels

4-ary (1,2) run-length limited code for optical storage channels

For access to this article, please select a purchase option:

Buy article PDF
(plus tax if applicable)
Buy Knowledge Pack
10 articles for $120.00
(plus taxes if applicable)

IET members benefit from discounts to all IET publications and free access to E&T Magazine. If you are an IET member, log in to your account and the discounts will automatically be applied.

Learn more about IET membership 

Recommend Title Publication to library

You must fill out fields marked with: *

Librarian details
Your details
Why are you recommending this title?
Select reason:
Electronics Letters — Recommend this title to your library

Thank you

Your recommendation has been sent to your librarian.

A 4-ary run-length limited (RLL) code with minimum run-length constraint d = 1 and maximum run-length constraint k = 2 is presented. The proposed code can be represented by a finite state diagram with two states. This is the lowest number of states necessary for representing the code yet presented. A simple docoding rule for the code is also introduced and a scheme for reducing the DC content of the coded sequence in the sense of multilevel running digital sum (RDS) is discussed.


    1. 1)
      • E. Ohno , K. Nishiuchi , K. Ishibashi , N. Yamada , N. Akahira . Multiple recordingmethod for pulse-width modulation recording on an erasable phase change optical disk. Jpn. J. Appl. Phys. , 4 , 677 - 681
    2. 2)
      • Ishida, T., Shoji, M., Miyabata, Y., Shibata, Y., Ohno, E., Ohara, S.: `High densitymark edge recording on a phase change rewritable disk by a 680-nm laser diode', Proc. SPIE(Optical Data Storage '94), 1994, 2338, p. 121–126.
    3. 3)
      • Gerpheide, J., Jain, A.: `Symbol discriminator for high density multilevel recording', Proc. SPIE (Optical Data Storage '95), 1995, 2514, p. 218–226.
    4. 4)
      • S.W. McLaughlin . Five runlength-limited codes for M-ary recording channels. IEEE Trans. , 3 , 2442 - 2450
    5. 5)
      • Lee, J.: `Capacity of M-ary multitrack RLL codes for storage channels', Proc. ICC'98, June 1998, 2, p. 964–967.

Related content

This is a required field
Please enter a valid email address