231920 ⎘
Details of transducers, loudspeakers or microphones; Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only; Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means; Enclosures comprising vibrating or resonating arrangements of the bandpass type
Sub-classes:Housing comprising a sensor
#2Loudspeaker with array of electrostatic card stack drivers
#3Method and apparatus for in-ear acoustic readout of data from a hearing instrument
#4Housing comprising a sensor
#5Apparatus and methods for monitoring a microphone
#6Apparatus and methods for monitoring a microphone
#7Detecting device for detecting photoacoustic elastic waves
#8Acoustic holographic recording and reproduction system using meta material layers
#9Acoustic device
#10Acoustic device
#11MICROPHONE ASSEMBLY WITH SUPPRESSED FREQUENCY RESPONSE
#12Loudspeaker
#13Acoustic device
#14Acoustic device
#15Top port microelectromechanical systems microphone
#16Assembly of a capacitive acoustic transducer of the microelectromechanical type and package thereof
#17In-ear device incorporating active noise reduction
#18Assembly of a capacitive acoustic transducer of the microelectromechanical type and package thereof
#19SILICON CONDENSER MICROPHONE PACKAGE
#20MEMS microphone
#21Condenser microphone, S/N ratio improvement therefor, and electronic device therefor