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- Run-length_limited abstract "Run length limited or RLL coding is a line coding technique that is used to send arbitrary data over a communications channel with bandwidth limits. RLL codes are defined by four main parameters: m, n, d, k. The first two m/n refer to the rate of the code, while the remaining two specify the minimum d and maximum k number of zeroes between consecutive ones. This is used in both telecommunication and storage systems which move a medium past a fixed recording head. Specifically, RLL bounds the length of stretches (runs) of repeated bits during which the signal does not change. If the runs are too long, clock recovery is difficult — if they are too short, the high frequencies might be attenuated by the communications channel. By modulating the data, RLL reduces the timing uncertainty in decoding the stored data, which would lead to the possible erroneous insertion or removal of bits when reading the data back. Run-length limited codes were widely used in hard disk drives until the mid-1980s, and are still used in digital optical discs such as CD, DVD, MD, Hi-MD and Blu-ray. This mechanism ensures that the boundaries between bits can always be accurately found (preventing bit slip), while efficiently using the media to reliably store the maximum amount of data in a given space. Early disk drives used very simple encoding schemes, such as RLL (0,1) FM code, but higher density RLL (2,7) and RLL (1,7) codes became the de facto industry standard for hard disks by the early 1990s.".
- Run-length_limited wikiPageExternalLink tapeint.htm.
- Run-length_limited wikiPageID "449077".
- Run-length_limited wikiPageLength "18478".
- Run-length_limited wikiPageOutDegree "50".
- Run-length_limited wikiPageRevisionID "677595553".
- Run-length_limited wikiPageWikiLink 10b_encoding.
- Run-length_limited wikiPageWikiLink Bandwidth_(signal_processing).
- Run-length_limited wikiPageWikiLink Bit_slip.
- Run-length_limited wikiPageWikiLink Blu-ray.
- Run-length_limited wikiPageWikiLink CD.
- Run-length_limited wikiPageWikiLink Category:Audio_storage.
- Run-length_limited wikiPageWikiLink Category:Line_codes.
- Run-length_limited wikiPageWikiLink Category:Physical_layer_protocols.
- Run-length_limited wikiPageWikiLink Category:Rotating_disc_computer_storage_media.
- Run-length_limited wikiPageWikiLink Category:Video_storage.
- Run-length_limited wikiPageWikiLink Channel_(communications).
- Run-length_limited wikiPageWikiLink Clock_recovery.
- Run-length_limited wikiPageWikiLink Compact_Disc.
- Run-length_limited wikiPageWikiLink Compact_disc.
- Run-length_limited wikiPageWikiLink DC_bias.
- Run-length_limited wikiPageWikiLink DVD.
- Run-length_limited wikiPageWikiLink Data.
- Run-length_limited wikiPageWikiLink Data_compression.
- Run-length_limited wikiPageWikiLink Differential_Manchester.
- Run-length_limited wikiPageWikiLink Differential_Manchester_encoding.
- Run-length_limited wikiPageWikiLink Direct-access_storage_device.
- Run-length_limited wikiPageWikiLink Direct_access_storage_device.
- Run-length_limited wikiPageWikiLink EFMPlus.
- Run-length_limited wikiPageWikiLink Eight-to-Fourteen_Modulation.
- Run-length_limited wikiPageWikiLink Eight-to-fourteen_modulation.
- Run-length_limited wikiPageWikiLink Error_correcting_codes.
- Run-length_limited wikiPageWikiLink Forward_error_correction.
- Run-length_limited wikiPageWikiLink Group_code_recording.
- Run-length_limited wikiPageWikiLink Hard_disk.
- Run-length_limited wikiPageWikiLink Hard_disk_drive.
- Run-length_limited wikiPageWikiLink Hi-MD.
- Run-length_limited wikiPageWikiLink IBM.
- Run-length_limited wikiPageWikiLink IBM_PC_compatible.
- Run-length_limited wikiPageWikiLink Infrared_Data_Association.
- Run-length_limited wikiPageWikiLink IrDA.
- Run-length_limited wikiPageWikiLink Line_code.
- Run-length_limited wikiPageWikiLink Mainframe_computer.
- Run-length_limited wikiPageWikiLink MiniDisc.
- Run-length_limited wikiPageWikiLink Minidisc.
- Run-length_limited wikiPageWikiLink Modified_Frequency_Modulation.
- Run-length_limited wikiPageWikiLink Modified_frequency_modulation.
- Run-length_limited wikiPageWikiLink Modulation.
- Run-length_limited wikiPageWikiLink NRZI.
- Run-length_limited wikiPageWikiLink Non-return-to-zero.
- Run-length_limited wikiPageWikiLink PRML.
- Run-length_limited wikiPageWikiLink Partial_response_maximum_likelihood.
- Run-length_limited wikiPageWikiLink Physical_layer.
- Run-length_limited wikiPageWikiLink Recording_head.
- Run-length_limited wikiPageWikiLink Run-length_encoding.
- Run-length_limited wikiPageWikiLink Self-synchronizing_code.
- Run-length_limited wikiPageWikiLink Source_coding.
- Run-length_limited wikiPageWikiLink Telecommunication.
- Run-length_limited wikiPageWikiLink Wikt:decode.
- Run-length_limited wikiPageWikiLink Zone_bit_recording.
- Run-length_limited wikiPageWikiLink Zoned_bit_recording.
- Run-length_limited wikiPageWikiLinkText "HHH(1,13)".
- Run-length_limited wikiPageWikiLinkText "MFM".
- Run-length_limited wikiPageWikiLinkText "RLL".
- Run-length_limited wikiPageWikiLinkText "RLL(1,7)".
- Run-length_limited wikiPageWikiLinkText "Run-length limited".
- Run-length_limited wikiPageWikiLinkText "run-length limited".
- Run-length_limited hasPhotoCollection Run-length_limited.
- Run-length_limited wikiPageUsesTemplate Template:Clarify.
- Run-length_limited wikiPageUsesTemplate Template:Distinguish.
- Run-length_limited wikiPageUsesTemplate Template:FOLDOC.
- Run-length_limited wikiPageUsesTemplate Template:Frac.
- Run-length_limited subject Category:Audio_storage.
- Run-length_limited subject Category:Line_codes.
- Run-length_limited subject Category:Physical_layer_protocols.
- Run-length_limited subject Category:Rotating_disc_computer_storage_media.
- Run-length_limited subject Category:Video_storage.
- Run-length_limited hypernym Line.
- Run-length_limited type Article.
- Run-length_limited type Document.
- Run-length_limited type Article.
- Run-length_limited type Document.
- Run-length_limited type Encoding.
- Run-length_limited type Protocol.
- Run-length_limited type Thing.
- Run-length_limited comment "Run length limited or RLL coding is a line coding technique that is used to send arbitrary data over a communications channel with bandwidth limits. RLL codes are defined by four main parameters: m, n, d, k. The first two m/n refer to the rate of the code, while the remaining two specify the minimum d and maximum k number of zeroes between consecutive ones. This is used in both telecommunication and storage systems which move a medium past a fixed recording head.".
- Run-length_limited label "Run-length limited".
- Run-length_limited differentFrom Run-length_encoding.
- Run-length_limited sameAs Run_length_limited.
- Run-length_limited sameAs Run_Length_Limited.
- Run-length_limited sameAs Run_Length_Limited_encoding.
- Run-length_limited sameAs Run_Length_Limited.
- Run-length_limited sameAs m.029s4v.
- Run-length_limited sameAs Run_Length_Limited.
- Run-length_limited sameAs Run_Length_Limited.
- Run-length_limited sameAs Q281884.
- Run-length_limited sameAs Q281884.
- Run-length_limited wasDerivedFrom Run-length_limited?oldid=677595553.
- Run-length_limited isPrimaryTopicOf Run-length_limited.