CPC Subgroup
H04R 1/22 for obtaining desired frequency characteristic only
Full Title
Details of transducers, > Arrangements for obtaining desired frequency or directional characteristics (for stereophonic purpose H04R5/00) > for obtaining desired frequency characteristic only
7 direct subcodes
Child Classifications
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- H04R 1/24 Structural combinations of separate transducers or of two parts of the same transducer and responsive respectively to two or more frequency ranges
- H04R 1/26 Spatial arrangements of separate transducers responsive to two or more frequency ranges
- H04R 1/28 Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
- H04R 1/30 Combinations of transducers with horns, e.g. with mechanical matching means (horns in general G10K; )