Headphone apparatus

Details Headphone apparatus Headphone apparatus

1997-05-08

1998-12-01

Le, Huyen

Electrical audio signal processing systems and devices

Electro-acoustic audio transducer

Plural or compound reproducers

381372, 381373, H04R 2500

Patent

active

058449981

ABSTRACT:
A headphone apparatus comprising an acoustic unit for converting an audio signal to an acoustic sound, a supporting structure for supporting the acoustic unit keeping a predetermined distance to the ear of a listener and an acoustic equalizer provided in front of the acoustic unit for transferring the sound wave output from the acoustic equalizer to the ear of the listener after correcting the frequency characteristic thereof.

REFERENCES:
patent: 4158753 (1979-06-01), Gorike
patent: 4239945 (1980-12-01), Atoji et al.
patent: 4993074 (1991-02-01), Carroll
patent: 5675653 (1997-10-01), Britain

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