METHOD AND MEANS FOR INVERTIBLY MAPPING BINARY SEQUENCES INTO RATE 2/3 (1,K) RUN-LENGTH-LIMITED CODED SEQUENCES WITH MAXIMUM TRANSITION DENSITY CONSTRAINTS

摘要

A METHOD AND MEANS FOR REDUCING HIGH-DUTY-CYCLE UNCONSTRAINED BINARY SIGNAL SEQUENCES IN STORAGE AND COMMUNICATION PROCESSES AND SYSTEMS BY INVERTIBLY MAPPING SUCH SEQUENCES INTO A (L,K) RATE 2/3 RLL CODESTREAM CONSTRAINED TO A DUTY CYCLE SUBSTANTIALLY APPROXIMATING ONE-THIRD. THAT IS, BINARY SEQUENCES ORDINARILY MAPPING INTO HIGH-DUTY-CYCLE RLLCODED SEQUENCES ARE EITHER INHIBITED FROM REPEATING INDEFINITELY OR EXCLUDED.(FIG 1)