5.
    发明专利
    未知

    公开(公告)号:ID27940A

    公开(公告)日:2001-05-03

    申请号:ID20002555

    申请日:1999-07-01

    Applicant: IBM

    Abstract: A method and means for reducing high-duty-cycle unconstrained binary signal sequences in storage and communications processes and systems by invertibly mapping such sequences into a (1, k) rate ⅔ RLL codestream constrained to a duty cycle substantially approximating one-third. That is, binary sequences ordinarily mapping into high-duty-cycle RLL-code sequences are either inhibited from repeating indefinitely or excluded.

    7.
    发明专利
    未知

    公开(公告)号:AT230891T

    公开(公告)日:2003-01-15

    申请号:AT99928152

    申请日:1999-07-01

    Applicant: IBM

    Abstract: A method and means for reducing high-duty-cycle unconstrained binary signal sequences in storage and communications processes and systems by invertibly mapping such sequences into a (1, k) rate ⅔ RLL codestream constrained to a duty cycle substantially approximating one-third. That is, binary sequences ordinarily mapping into high-duty-cycle RLL-code sequences are either inhibited from repeating indefinitely or excluded.

Patent Agency Ranking