Electrical audio signal processing systems and devices – Hearing aids – electrical – Specified casing or housing
Patent
1997-08-13
1999-09-07
Chang, Vivian
Electrical audio signal processing systems and devices
Hearing aids, electrical
Specified casing or housing
381380, H04R 2500
Patent
active
059498960
ABSTRACT:
An earphone with an improved frequency response includes an electroacoustic transducer for converting an audio signal to an acoustic sound and an ear piece. The ear piece is provided on a sound emanating side of the electroacoustic transducer to introduce sound produced by the electroacoustic transducer to the external auditory meatus. An opening for opening an air chamber formed on the sound emanating side of the electroacoustic transducer to the outside by the ear piece is provided in the ear piece and a ventilation resistant material is provided to cover the opening.
REFERENCES:
patent: 4878560 (1989-11-01), Scott
Murozaki Katsunori
Nageno Koji
Tsunoda Naotaka
Chang Vivian
Maioli Jay H.
Sony Corporation
LandOfFree
Earphone does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Earphone, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Earphone will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1812378