specially adapted to record on, or to reproduce from, more than one track simultaneously

Full Title

Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation, reproducing using an optical beam at lower power; Record carriers therefor > Heads, e.g. forming of the optical beam spot or modulation of the optical beam > specially adapted to record on, or to reproduce from, more than one track simultaneously

Classification Context

Section:

PHYSICS

Class:

INFORMATION STORAGE

Subclass:

INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER