GB9821419D0 - A data encoding method and apparatus - Google Patents

A data encoding method and apparatus

Info

Publication number
GB9821419D0
GB9821419D0 GBGB9821419.0A GB9821419A GB9821419D0 GB 9821419 D0 GB9821419 D0 GB 9821419D0 GB 9821419 A GB9821419 A GB 9821419A GB 9821419 D0 GB9821419 D0 GB 9821419D0
Authority
GB
United Kingdom
Prior art keywords
encoding method
data encoding
data
encoding
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
GBGB9821419.0A
Other versions
GB2342259A (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
DOBRE COSTICA
Original Assignee
DOBRE COSTICA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by DOBRE COSTICA filed Critical DOBRE COSTICA
Priority to GB9821419A priority Critical patent/GB2342259A/en
Publication of GB9821419D0 publication Critical patent/GB9821419D0/en
Publication of GB2342259A publication Critical patent/GB2342259A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/14—Digital recording or reproducing using self-clocking codes
    • G11B20/1403—Digital recording or reproducing using self-clocking codes characterised by the use of two levels
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/14—Digital recording or reproducing using self-clocking codes
    • G11B20/1496—Digital recording or reproducing using self-clocking codes characterised by the use of more than three levels
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M5/00—Conversion of the form of the representation of individual digits
    • H03M5/02—Conversion to or from representation by pulses
    • H03M5/20—Conversion to or from representation by pulses the pulses having more than three levels

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Theoretical Computer Science (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
GB9821419A 1998-10-01 1998-10-01 Apparatus for multilevel encoding and recording Withdrawn GB2342259A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9821419A GB2342259A (en) 1998-10-01 1998-10-01 Apparatus for multilevel encoding and recording

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9821419A GB2342259A (en) 1998-10-01 1998-10-01 Apparatus for multilevel encoding and recording

Publications (2)

Publication Number Publication Date
GB9821419D0 true GB9821419D0 (en) 1998-11-25
GB2342259A GB2342259A (en) 2000-04-05

Family

ID=10839830

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9821419A Withdrawn GB2342259A (en) 1998-10-01 1998-10-01 Apparatus for multilevel encoding and recording

Country Status (1)

Country Link
GB (1) GB2342259A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0023800D0 (en) 2000-09-28 2000-11-08 Sweet James A Data writing and reading

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4408189A (en) * 1981-05-18 1983-10-04 Northern Telecom Limited Method and apparatus for code conversion of binary to multilevel signals
US5095392A (en) * 1988-01-27 1992-03-10 Matsushita Electric Industrial Co., Ltd. Digital signal magnetic recording/reproducing apparatus using multi-level QAM modulation and maximum likelihood decoding
US5136573A (en) * 1988-06-30 1992-08-04 Kabushiki Kaisha Toshiba Information recording apparatus and method
JPH0289229A (en) * 1988-09-26 1990-03-29 Toshiba Corp Information recording device and method
US5408456A (en) * 1990-02-02 1995-04-18 Canon Kabushiki Kaisha Data reproducing method and apparatus for determining the interval between pits on a recording medium from a modulated read-out signal
US5136291A (en) * 1990-11-30 1992-08-04 Unisys Corporation Transmitting binary data files using electronic mail
JPH05266592A (en) * 1992-03-19 1993-10-15 Olympus Optical Co Ltd Multivalue recording/reproducing device
JP3273580B2 (en) * 1993-12-28 2002-04-08 ソニー株式会社 Data modulation method, data modulation device, recording medium, data demodulation method, and data demodulation device
US5537382A (en) * 1994-11-22 1996-07-16 Optex Corporation Partial response coding for a multi-level optical recording channel
US5682154A (en) * 1995-05-12 1997-10-28 Optex Corporation M=4 (1,2) runlength limited code for multi-level data

Also Published As

Publication number Publication date
GB2342259A (en) 2000-04-05

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)