231943 ⎘
Details of transducers, loudspeakers or microphones; Arrangements for obtaining desired frequency or directional characteristics 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
Playback Devices Having Waveguides
#2Playback devices having waveguides
#3Playback devices having waveguides
#4Acoustic transducers for microphone assemblies having non-circular apertures
#5Playback devices having waveguides
#6Active noise control with planar transducers
#7Non-axisymmetric and non-horn phase plugs
#8NON-AXISYMMETRIC AND NON-HORN PHASE PLUGS
#9Dome shaped microphone array with circularly distributed microphones
#10Low diffraction tweeter housing
#11VARIABLE DEVICE FOR DIRECTING SOUND WAVEFRONTS
#12Display apparatus for visual and audio multiplexed display
#13Acoustic horn gain managing
#14SLOTTED WAVEGUIDE FOR LOUDSPEAKERS
#15Acoustic radiation pattern adjusting
#16Flat panel loudspeakers
#17Magnetic membrane suspension