[计] non-return-to-zero change, NRZ-C

yì mǎ biàn huà bù guī líng zhì ㄧˋ ㄇㄚˇ ㄅㄧㄢˋ ㄏㄨㄚˋ ㄅㄨˋ ㄍㄨㄟ ㄌㄧㄥˊ ㄓˋ