IPC-Stelle: H04R [Version 2017.01]

SymbolTypTitel
HSKELECTRICITY
H04KLELECTRIC COMMUNICATION TECHNIQUE
H04RUKLLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS (producing sounds with frequency not determined by supply frequency G10K) [6]
H04R 1/00HGRDetails 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; mountings specially adapted for telephone equipment H04M 1/02) [1, 2006.01]
H04R 1/02UGR1
.Casings; Cabinets; Mountings therein (H04R 1/28 takes precedence) [1, 2006.01]
H04R 1/04UGR2
. .Structural association of microphone with electric circuitry therefor (in deaf-aid sets H04R 25/00) [1, 2006.01]
H04R 1/06UGR1
.Arranging circuit leads; Relieving strain on circuit leads [1, 2006.01]
H04R 1/08UGR1
.Mouthpieces; Attachments therefor [1, 2006.01]
H04R 1/10UGR1
.Earpieces; Attachments therefor [1, 2006.01]
H04R 1/12UGR1
.Sanitary or hygienic devices for mouthpieces or earpieces, e.g. for protecting against infection [1, 2006.01]
H04R 1/14UGR1
.Throat mountings for microphones [1, 2006.01]
H04R 1/16UGR1
.Mounting or connecting stylus to transducer with or without damping means [1, 2006.01]
H04R 1/18UGR2
. .Holders for styli; Mounting holders on transducers [1, 2006.01]
H04R 1/20UGR1
.Arrangements for obtaining desired frequency or directional characteristics (for stereophonic purposes H04R 5/00) [1, 2006.01]
H04R 1/22UGR2
. .for obtaining desired frequency characteristic only [1, 2006.01]
H04R 1/24UGR3
. . .Structural combinations of separate transducers or of parts of the same transducer and responsive respectively to two or more frequency ranges [1, 2006.01]
H04R 1/26UGR3
. . .Spatial arrangement of separate transducers responsive to two or more frequency ranges [1, 2006.01]
H04R 1/28UGR3
. . .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, 2006.01]
H04R 1/30UGR3
. . .Combinations of transducers with horns, e.g. with mechanical matching means [1, 2006.01]
H04R 1/32UGR2
. .for obtaining desired directional characteristic only [1, 2006.01]
H04R 1/34UGR3
. . .by using a single transducer with sound reflecting, diffracting, directing or guiding means [1, 2006.01]
H04R 1/36UGR4
. . . .by using a single aperture of dimensions not greater than the shortest operating wavelength [1, 2006.01]
H04R 1/38UGR4
. . . .in which sound waves act upon both sides of a diaphragm and incorporating acoustic phase-shifting means, e.g. pressure-gradient microphone [1, 2006.01]
H04R 1/40UGR3
. . .by combining a number of identical transducers [1, 2006.01]
H04R 1/42UGR1
.Combinations of transducers with fluid-pressure or other non-electrical amplifying means [1, 2006.01]
H04R 1/44UGR1
.Special adaptations for subaqueous use, e.g. for hydrophone [1, 2006.01]
H04R 1/46UGR1
.Special adaptations for use as contact microphones, e.g. on musical instrument, on stethoscope (throat mountings H04R 1/14) [1, 2006.01]
H04R 3/00HGRCircuits for transducers (arrangements for producing a reverberation or echo sound G10K 15/08; amplifiers H03F) [1, 2006.01]
H04R 3/02UGR1
.for preventing acoustic reaction [1, 2006.01]
H04R 3/04UGR1
.for correcting frequency response [1, 2006.01]
H04R 3/06UGR2
. .of electrostatic transducers [1, 2006.01]
H04R 3/08UGR2
. .of electromagnetic transducers [1, 2006.01]
H04R 3/10UGR2
. .of variable-resistance microphones [1, 2006.01]
H04R 3/12UGR1
.for distributing signals to two or more loudspeakers [1, 2006.01]
H04R 3/14UGR2
. .Cross-over networks [1, 2006.01]
H04R 5/00HGRStereophonic arrangements (stereophonic pick-ups H04R 9/16, H04R 11/12, H04R 17/08, H04R 19/10) [1, 2006.01]
H04R 5/02UGR1
.Spatial or constructional arrangements of loudspeakers [1, 2006.01]
H04R 5/027UGR1
.Spatial or constructional arrangements of microphones, e.g. in dummy heads [3, 2006.01]
H04R 5/033UGR1
.Headphones for stereophonic communication [3, 2006.01]
H04R 5/04UGR1
.Circuit arrangements (stereophonic systems H04S) [1, 2006.01]
H04R 7/00HGRDiaphragms for electromechanical transducers; Cones [1, 2006.01]
H04R 7/02UGR1
.characterised by the construction [1, 2006.01]
H04R 7/04UGR2
. .Plane diaphragms [1, 2006.01]
H04R 7/06UGR3
. . .comprising a plurality of sections or layers [1, 2006.01]
H04R 7/08UGR4
. . . .comprising superposed layers separated by air or other fluid [1, 2006.01]
H04R 7/10UGR4
. . . .comprising superposed layers in contact [1, 2006.01]
H04R 7/12UGR2
. .Non-planar diaphragms or cones [1, 2006.01]
H04R 7/14UGR3
. . .corrugated, pleated, or ribbed [1, 2006.01]
H04R 7/16UGR1
.Mounting or tensioning of diaphragms or cones [1, 2006.01]
H04R 7/18UGR2
. .at the periphery [1, 2006.01]
H04R 7/20UGR3
. . .Securing diaphragm or cone resiliently to support by flexible material, springs, cords, or strands [1, 2006.01]
H04R 7/22UGR3
. . .Clamping rim of diaphragm or cone against seating [1, 2006.01]
H04R 7/24UGR2
. .Tensioning by means acting directly on free portion of diaphragm or cone [1, 2006.01]
H04R 7/26UGR1
.Damping by means acting directly on free portion of diaphragm or cone [1, 2006.01]
H04R 9/00HGRTransducers of moving-coil, moving-strip, or moving-wire type [1, 2006.01]
H04R 9/02UGR1
.Details [1, 2006.01]
H04R 9/04UGR2
. .Construction, mounting, or centering of coil [1, 2006.01]
H04R 9/06UGR1
.Loudspeakers [1, 2006.01]
H04R 9/08UGR1
.Microphones [1, 2006.01]
H04R 9/10UGR1
.Telephone receivers [1, 2006.01]
H04R 9/12UGR1
.Gramophone pick-ups using a stylus; Recorders using a stylus [1, 2006.01]
H04R 9/14UGR2
. .comprising two or more styli or transducers (H04R 9/16 takes precedence) [1, 2006.01]
H04R 9/16UGR2
. .signals being recorded or played-back by vibration of a stylus in two orthogonal directions simultaneously [1, 2006.01]
H04R 9/18UGR1
.Resonant transducers, i.e. adapted to produce maximum output at a predetermined frequency [1, 2006.01]
H04R 11/00HGRTransducers of moving-armature or moving-core type [1, 2006.01]
H04R 11/02UGR1
.Loudspeakers [1, 2006.01]
H04R 11/04UGR1
.Microphones [1, 2006.01]
H04R 11/06UGR1
.Telephone receivers [1, 2006.01]
H04R 11/08UGR1
.Gramophone pick-ups using a stylus; Recorders using a stylus [1, 2006.01]
H04R 11/10UGR2
. .comprising two or more styli or transducers (H04R 11/12 takes precedence) [1, 2006.01]
H04R 11/12UGR2
. .signals being recorded or played-back by vibration of a stylus in two orthogonal directions simultaneously [1, 2006.01]
H04R 11/14UGR1
.Resonant transducers, i.e. adapted to produce maximum output at a predetermined frequency [1, 2006.01]
H04R 13/00HGRTransducers having an acoustic diaphragm of magnetisable material directly co-acting with electromagnet [1, 2006.01]
H04R 13/02UGR1
.Telephone receivers [1, 2006.01]
H04R 15/00HGRMagnetostrictive transducers [1, 2006.01]
H04R 15/02UGR1
.Resonant transducers, i.e. adapted to produce maximum output at a predetermined frequency [1, 2006.01]
H04R 17/00HGRPiezo-electric transducers; Electrostrictive transducers [1, 2006.01]
H04R 17/02UGR1
.Microphones [1, 2006.01]
H04R 17/04UGR1
.Gramophone pick-ups using a stylus; Recorders using a stylus [1, 2006.01]
H04R 17/06UGR2
. .comprising two or more styli or transducers (H04R 17/08 takes precedence) [1, 2006.01]
H04R 17/08UGR2
. .signals being recorded or played-back by vibration of a stylus in two orthogonal directions simultaneously [1, 2006.01]
H04R 17/10UGR1
.Resonant transducers, i.e. adapted to produce maximum output at a predetermined frequency [1, 2006.01]
H04R 19/00HGRElectrostatic transducers [1, 2006.01]
H04R 19/01UGR1
.characterised by the use of electrets [3, 2006.01]
H04R 19/02UGR1
.Loudspeakers (H04R 19/01 takes precedence) [1, 3, 2006.01]
H04R 19/04UGR1
.Microphones (H04R 19/01 takes precedence) [1, 3, 2006.01]
H04R 19/06UGR1
.Gramophone pick-ups using a stylus; Recorders using a stylus (H04R 19/01 takes precedence) [1, 3, 2006.01]
H04R 19/08UGR2
. .comprising two or more styli or transducers (H04R 19/10 takes precedence) [1, 2006.01]
H04R 19/10UGR2
. .signals being recorded or played-back by vibration of a stylus in two orthogonal directions simultaneously [1, 2006.01]
H04R 21/00HGRVariable-resistance transducers (gaseous-resistance transducers H04R 23/00; magneto-resistive transducers H04R 23/00) [1, 2006.01]
H04R 21/02UGR1
.Microphones [1, 2006.01]
H04R 21/04UGR1
.Gramophone pick-ups using a stylus; Recorders using a stylus [1, 2006.01]
H04R 23/00HGRTransducers other than those covered by groups H04R 9/00-H04R 21/00 [1, 2006.01]
H04R 23/02UGR1
.Transducers using more than one principle simultaneously [1, 2006.01]
H04R 25/00HGRDeaf-aid sets [1, 2006.01]
H04R 25/02UGR1
.adapted to be supported entirely by ear [1, 2006.01]
H04R 25/04UGR1
.comprising pocket amplifiers [1, 2006.01]
H04R 27/00HGRPublic address systems (circuits for preventing acoustic reaction H04R 3/02) [1, 2006.01]
H04R 27/02UGR1
.Amplifying systems for the deaf [1, 2006.01]
H04R 27/04UGR1
.Electric megaphones [1, 2006.01]
H04R 29/00HGRMonitoring arrangements; Testing arrangements [1, 2006.01]
H04R 31/00HGRApparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor [1, 2006.01]