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Title: (d, k/I) constrained partial response maximum likelihood codes
Authors: Li, Yuan Xing
Subrahmanyam, Jai N.
Deng, Robert H. 
Issue Date: Jan-1995
Citation: Li, Yuan Xing,Subrahmanyam, Jai N.,Deng, Robert H. (1995-01). (d, k/I) constrained partial response maximum likelihood codes. International Journal of Electronics 78 (1) : 19-24. ScholarBank@NUS Repository.
Abstract: A new set of constrained codes, referred to as (d, k/I) constrained partial response maximum likelihood (PRML) codes, is proposed. These new constrained codes combine the benefits of both (d, k) run length limited codes and (0, k/I) PRML codes, with seemingly promising applications in PRML read channels for today's head/media combinations, using thin-film media and inductive read heads. The rules for generating any (d, k/I) code are presented, the Shannon capacity is tabulated for the codes of practical interest with d = 1 and 2, and the encoding finite state transition diagram and state-independent decoder are designed for a rate 1/2, (1, 7/6) code. Some differences among (d, k) codes, (0, k/I) codes, (0, k/I/M) codes and (d, k/I) codes are also addressed.
Source Title: International Journal of Electronics
ISSN: 00207217
Appears in Collections:Staff Publications

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