of the pseudo four-channel type, e.g. in which rear channel signals are derived from two-channel stereo signals

Full Title

Pseudo-stereo systems, e.g. in which additional channel signals are derived from monophonic signals by means of phase shifting, time delay or reverberation > of the pseudo four-channel type, e.g. in which rear channel signals are derived from two-channel stereo signals

Classification Context

Section:

ELECTRICITY

Class:

ELECTRIC COMMUNICATION TECHNIQUE

Subclass:

STEREOPHONIC SYSTEMS