Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Plural or compound reproducers
Patent
1998-06-17
1999-03-09
Le, Huyen
Electrical audio signal processing systems and devices
Electro-acoustic audio transducer
Plural or compound reproducers
381370, 381374, H04R 2500
Patent
active
058811613
ABSTRACT:
A headphone is composed of a speaker, a microphone, and a flexible earpiece capable of being secured to the external ears of various sizes. The flexible earpiece is formed of a flexible rod which is provided at one end thereof with a female portion and at another end thereof with a male portion engageable with the female portion.
REFERENCES:
patent: 4020297 (1977-04-01), Brodie
patent: 4289938 (1981-09-01), Zichy
patent: 4529058 (1985-07-01), Emery
Le Huyen
Merry Electronics Co., Ltd.
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