Title:
【発明の名称】ランレングス制限コード化シーケンスへの2進シーケンスの可逆的マッピング方法及び装置
Document Type and Number:
Japanese Patent JP3416115
Kind Code:
B2
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.
Inventors:
Hassner, Martin, Aureliano
Haze, niles
Heart, walter
Trager, Barry, Marshall
Haze, niles
Heart, walter
Trager, Barry, Marshall
Application Number:
JP2000559564A
Publication Date:
June 16, 2003
Filing Date:
July 01, 1999
Export Citation:
Assignee:
INTERNATIONAL BUSINESS MASCHINES CORPORATION
International Classes:
G11B20/10; H03M5/14; H03M7/00; G11B20/14; H03M7/14; H03M13/00; (IPC1-7): H03M7/14; G11B20/14
Domestic Patent References:
| JP1286626A | ||||
| JP3172047A | ||||
| JP9153789A |
Other References:
【文献】米国特許5731768(US,A)
Attorney, Agent or Firm:
Hiroshi Sakaguchi (1 person outside)