Patent classifications
H
ELECTRICITY
Load children
H04
ELECTRIC COMMUNICATION TECHNIQUE
Load children
H04S
STEREOPHONIC SYSTEMS
Load children
3/00
Systems employing more than two channels, e.g. quadraphonic
Load children Filter patents View analytics View as hierarchy
H04S3/002
Non-adaptive circuits, e.g. manually adjustable or static, for enhancing the sound image or the spatial distribution
Load children Filter patents View analytics View as hierarchy