group coded recording(GCR)

A method of magnetizable surface recording in which the data is divided into fourbit groups, each of which is represented as a fivebit group constructed to prevent the occurrence of more than two consecutive 0bits.; 一種在可磁化表面進行記錄的方法,其中數據被分成4比特一組,而每一組用5比特表示, 這種結構用來防止連續發生兩個以上0比特。