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.
位相変調記録は、かつて磁気テープのデータ記録に使われていた。
Phase modulation recording was once used for data recording on magnetic tape.
Compound of 位相 (phase), 変調 (modulation), and 記録 (recording). A direct technical term with no known historical derivation beyond its components.