H04R2201/00 - CPC Classification Index

ClassID:

232106 ⎘

H04R2201/00 - CPC Classification

Classification description:

Details of transducers, loudspeakers or microphones covered by but not provided for in any of its subgroups

Sub-classes:

H04R2201/003 » Mems transducers or their use 1,9K
H04R2201/02 » Details casings, cabinets or mounting therein for transducers covered by but not provided for in any of its subgroups 123
H04R2201/10 » Details of earpieces, attachments therefor, earphones or monophonic headphones covered by but not provided for in any of its subgroups 113
H04R2201/34 » Directing or guiding sound by means of a phase plug 131
H04R2201/40 » Details of arrangements for obtaining desired directional characteristic by combining a number of identical transducers covered by but not provided for in any of its subgroups 109

Recent Application in this class:

20250220357

ACOUSTIC OUTPUT APPARATUS

20230111069

Acoustic output apparatus

20210088891

Methods and systems of vibrating a screen

20150024807

Surface mountable microphone package, a microphone arrangement, a mobile phone and a method for recording microphone signals