H04R

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LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS (generating mechanical vibrations in general B06B; transducers for measuring particular variables G01; transducers in clocks G04; producing sounds with frequency not determined by supply frequency G10K; transducers in recording or reproducing heads G11B; transducers in motors H02)

Subclasses

SubclassTitle
1/00 Details of transducers (diaphragms H04R 7/00; characterised by the nature of the transducer, see the relevant group of main groups H04R 9/00-H04R 23/00; mounting radio sets or communication systems in helmets A42B 3/3; mountings specially adapted for telephone equipment H04M 1/02)
1/02 Details of transducers (diaphragms H04R 7/00; characterised by the nature of the transducer, see the relevant group of main groups H04R 9/00-H04R 23/00; mounting radio sets or communication systems in helmets A42B 3/3; mountings specially adapted for telephone equipment H04M 1/02) Casings; Cabinets; Mountings therein (H04R 1/28 takes precedence)
1/04 Details of transducers (diaphragms H04R 7/00; characterised by the nature of the transducer, see the relevant group of main groups H04R 9/00-H04R 23/00; mounting radio sets or communication systems in helmets A42B 3/3; mountings specially adapted for telephone equipment H04M 1/02) Casings; Cabinets; Mountings therein (H04R 1/28 takes precedence) Structural association of microphone with electric circuitry therefor (in deaf-aid sets H04R 25/00)
1/06 Details of transducers (diaphragms H04R 7/00; characterised by the nature of the transducer, see the relevant group of main groups H04R 9/00-H04R 23/00; mounting radio sets or communication systems in helmets A42B 3/3; mountings specially adapted for telephone equipment H04M 1/02) Arranging circuit leads; Relieving strain on circuit leads
1/08 Details of transducers (diaphragms H04R 7/00; characterised by the nature of the transducer, see the relevant group of main groups H04R 9/00-H04R 23/00; mounting radio sets or communication systems in helmets A42B 3/3; mountings specially adapted for telephone equipment H04M 1/02) Mouthpieces; Attachments therefor
1/10 Details of transducers (diaphragms H04R 7/00; characterised by the nature of the transducer, see the relevant group of main groups H04R 9/00-H04R 23/00; mounting radio sets or communication systems in helmets A42B 3/3; mountings specially adapted for telephone equipment H04M 1/02) Earpieces; Attachments therefor
1/12 Details of transducers (diaphragms H04R 7/00; characterised by the nature of the transducer, see the relevant group of main groups H04R 9/00-H04R 23/00; mounting radio sets or communication systems in helmets A42B 3/3; mountings specially adapted for telephone equipment H04M 1/02) Sanitary or hygienic devices for mouthpieces or earpieces, e.g. for protecting against infection
1/14 Details of transducers (diaphragms H04R 7/00; characterised by the nature of the transducer, see the relevant group of main groups H04R 9/00-H04R 23/00; mounting radio sets or communication systems in helmets A42B 3/3; mountings specially adapted for telephone equipment H04M 1/02) Throat mountings for microphones
1/16 Details of transducers (diaphragms H04R 7/00; characterised by the nature of the transducer, see the relevant group of main groups H04R 9/00-H04R 23/00; mounting radio sets or communication systems in helmets A42B 3/3; mountings specially adapted for telephone equipment H04M 1/02) Mounting or connecting stylus to transducer with or without damping means
1/18 Details of transducers (diaphragms H04R 7/00; characterised by the nature of the transducer, see the relevant group of main groups H04R 9/00-H04R 23/00; mounting radio sets or communication systems in helmets A42B 3/3; mountings specially adapted for telephone equipment H04M 1/02) Mounting or connecting stylus to transducer with or without damping means Holders for styli; Mounting holders on transducers
1/20 Details of transducers (diaphragms H04R 7/00; characterised by the nature of the transducer, see the relevant group of main groups H04R 9/00-H04R 23/00; mounting radio sets or communication systems in helmets A42B 3/3; mountings specially adapted for telephone equipment H04M 1/02) Arrangements for obtaining desired frequency or directional characteristics (for stereophonic purposes H04R 5/00; speech enhancement by processing of the speech signal G10L 21/02)
1/22 Details of transducers (diaphragms H04R 7/00; characterised by the nature of the transducer, see the relevant group of main groups H04R 9/00-H04R 23/00; mounting radio sets or communication systems in helmets A42B 3/3; mountings specially adapted for telephone equipment H04M 1/02) Arrangements for obtaining desired frequency or directional characteristics (for stereophonic purposes H04R 5/00; speech enhancement by processing of the speech signal G10L 21/02) for obtaining desired frequency characteristic only (circuits for combining transducers having different responses H04R 3/00)
1/24 Details of transducers (diaphragms H04R 7/00; characterised by the nature of the transducer, see the relevant group of main groups H04R 9/00-H04R 23/00; mounting radio sets or communication systems in helmets A42B 3/3; mountings specially adapted for telephone equipment H04M 1/02) Arrangements for obtaining desired frequency or directional characteristics (for stereophonic purposes H04R 5/00; speech enhancement by processing of the speech signal G10L 21/02) for obtaining desired frequency characteristic only (circuits for combining transducers having different responses H04R 3/00) Structural combinations of separate transducers or of parts of the same transducer and responsive respectively to two or more frequency ranges
1/26 Details of transducers (diaphragms H04R 7/00; characterised by the nature of the transducer, see the relevant group of main groups H04R 9/00-H04R 23/00; mounting radio sets or communication systems in helmets A42B 3/3; mountings specially adapted for telephone equipment H04M 1/02) Arrangements for obtaining desired frequency or directional characteristics (for stereophonic purposes H04R 5/00; speech enhancement by processing of the speech signal G10L 21/02) for obtaining desired frequency characteristic only (circuits for combining transducers having different responses H04R 3/00) Spatial arrangement of separate transducers responsive to two or more frequency ranges
1/28 Details of transducers (diaphragms H04R 7/00; characterised by the nature of the transducer, see the relevant group of main groups H04R 9/00-H04R 23/00; mounting radio sets or communication systems in helmets A42B 3/3; mountings specially adapted for telephone equipment H04M 1/02) Arrangements for obtaining desired frequency or directional characteristics (for stereophonic purposes H04R 5/00; speech enhancement by processing of the speech signal G10L 21/02) for obtaining desired frequency characteristic only (circuits for combining transducers having different responses H04R 3/00) Transducer mountings or enclosures designed for specific frequency response; Transducer enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
1/30 Details of transducers (diaphragms H04R 7/00; characterised by the nature of the transducer, see the relevant group of main groups H04R 9/00-H04R 23/00; mounting radio sets or communication systems in helmets A42B 3/3; mountings specially adapted for telephone equipment H04M 1/02) Arrangements for obtaining desired frequency or directional characteristics (for stereophonic purposes H04R 5/00; speech enhancement by processing of the speech signal G10L 21/02) for obtaining desired frequency characteristic only (circuits for combining transducers having different responses H04R 3/00) Combinations of transducers with horns, e.g. with mechanical matching means (horns in general G10K)
1/32 Details of transducers (diaphragms H04R 7/00; characterised by the nature of the transducer, see the relevant group of main groups H04R 9/00-H04R 23/00; mounting radio sets or communication systems in helmets A42B 3/3; mountings specially adapted for telephone equipment H04M 1/02) Arrangements for obtaining desired frequency or directional characteristics (for stereophonic purposes H04R 5/00; speech enhancement by processing of the speech signal G10L 21/02) for obtaining desired directional characteristic only
1/34 Details of transducers (diaphragms H04R 7/00; characterised by the nature of the transducer, see the relevant group of main groups H04R 9/00-H04R 23/00; mounting radio sets or communication systems in helmets A42B 3/3; mountings specially adapted for telephone equipment H04M 1/02) Arrangements for obtaining desired frequency or directional characteristics (for stereophonic purposes H04R 5/00; speech enhancement by processing of the speech signal G10L 21/02) for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means
1/36 Details of transducers (diaphragms H04R 7/00; characterised by the nature of the transducer, see the relevant group of main groups H04R 9/00-H04R 23/00; mounting radio sets or communication systems in helmets A42B 3/3; mountings specially adapted for telephone equipment H04M 1/02) Arrangements for obtaining desired frequency or directional characteristics (for stereophonic purposes H04R 5/00; speech enhancement by processing of the speech signal G10L 21/02) for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means by using a single aperture of dimensions not greater than the shortest operating wavelength
1/38 Details of transducers (diaphragms H04R 7/00; characterised by the nature of the transducer, see the relevant group of main groups H04R 9/00-H04R 23/00; mounting radio sets or communication systems in helmets A42B 3/3; mountings specially adapted for telephone equipment H04M 1/02) Arrangements for obtaining desired frequency or directional characteristics (for stereophonic purposes H04R 5/00; speech enhancement by processing of the speech signal G10L 21/02) for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means in which sound waves act upon both sides of a diaphragm and incorporating acoustic phase-shifting means, e.g. pressure-gradient microphone

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