Electro-acoustic transducer arranged within the handset of a tel

Details Electro-acoustic transducer arranged within the handset of a tel Electro-acoustic transducer arranged within the handset of a tel

1986-10-14

1989-07-04

Ng, Jin F.

Electrical audio signal processing systems and devices

Electro-acoustic audio transducer

Plural or compound reproducers

379433, 379437, 381158, 381189, H04M 104, H04R 102

Patent

active

048457604

ABSTRACT:
An electro-acoustic transducer is arranged within the handset of a telephone instrument. The transducer is elastically seated and is seated at a distance from the walls of the handset so that noises caused by the handset are not transmitted onto the transducer.

REFERENCES:
patent: 2757247 (1956-07-01), Gavreau
patent: 3156788 (1964-10-01), Kuskin
patent: 3257516 (1966-06-01), Knowles
patent: 3383475 (1968-05-01), Wiggins
patent: 4528426 (1985-07-01), Fatovic et al.

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