EntityQ1457387· pop 20· linked from 153 articlesline codeSign in to savepattern used within a communications system to represent digital dataConnectionsnon-return-to-zeroEntityDifferential Manchester encodingEntitymodulationEntityeight-to-fourteen modulationEntitymodified frequency modulationEntityDC biasEntityhard diskEntitycompact discEntityManchester codeEntitydata storageEntitydifferential signalingEntitybipolar encodingEntity8b/10b encodingEntityInternational Standard Book NumberEntitytelecommunicationsEntityWayback MachineEntitydataEntitydigital object identifierEntityDVDEntityradio waveEntityCategoriesCoding theoryLine codesPhysical layer protocols