Patent classifications
H
ELECTRICITY
Load children
H04
ELECTRIC COMMUNICATION TECHNIQUE
Load children
H04R
LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
Load children
7/00
Diaphragms for electromechanical transducers; Cones
Load children Filter patents View analytics View as hierarchy
H04R7/02
characterised by the construction
Load children Filter patents View analytics View as hierarchy
H04R7/045
using the distributed mode principle, i.e. whereby the acoustic radiation is emanated from uniformly distributed free bending wave vibration induced in a stiff panel and not from pistonic motion
Filter patents View analytics View as hierarchy