位い相そう変へん調ちょう記き録ろく

noun

phase modulation recording; phase encoding

A magnetic recording method where data is encoded by shifting the phase of the signal. Used in older tape and disk storage systems.

• 位い相そう変へん調ちょう記き録ろくは、かつて磁じ気きテープのデータ記き録ろくに使つかわれていた。

  Phase modulation recording was once used for data recording on magnetic tape.