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DIFF Subgroup
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

Introduced: September 1968

Title

Titles differ between systems:

IPC: Structural combinations of separate transducers or of parts of the same transducer and responsive respectively to two or more frequency ranges

CPC: Structural combinations of separate transducers or of two parts of the same transducer and responsive respectively to two or more frequency ranges

Full Title

Full titles differ between systems:

IPC:

Details of transducers > Arrangements for obtaining desired frequency or directional characteristics > for obtaining desired frequency characteristic only > Structural combinations of separate transducers or of parts of the same transducer and responsive respectively to two or more frequency ranges

CPC:

Details of transducers, > Arrangements for obtaining desired frequency or directional characteristics (for stereophonic purpose H04R5/00) > for obtaining desired frequency characteristic only > Structural combinations of separate transducers or of two parts of the same transducer and responsive respectively to two or more frequency ranges

Of 1 combined children, 0 exist in both systems.

1 codes are CPC-only extensions.

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