HEADPHONE Russian patent published in 2006 - IPC H04R1/10 H04R25/00 

FIELD: headphones.

SUBSTANCE: proposed headphone has body with plurality of sound input and output cells, as well as loudspeaker installed within body; sound input and output cells are used to pass external sound. Resonator installed about loudspeaker has at least two of its sides attached to inner surface of headphone body and is provided with through holes. Wave produced by side wherefrom high-intensity impulse noise of loudspeaker escapes passes via through holes of resonator and interacts with wave produced by side wherefrom low-potential impulse noise of loudspeaker appears; it is oriented so that low-potential impulse noise of loudspeaker is transmitted toward sound output cells on headphone body. High-intensity impulse noise is transmitted in direction opposite to side of sound output cells on headphone body. Adjustable sound-protective gear is attached to body for its setting in desired position relative to sound input cells and for complete blocking of external noise.

EFFECT: reduced noise pressure on eye, minimized noise, enhanced purity of sound.

1 cl, 6 dwg