Telephone handset having a pure acoustic resistance connection

Details Telephone handset having a pure acoustic resistance connection Telephone handset having a pure acoustic resistance connection

1989-10-20

1991-10-15

Ng, Jin F.

Telephonic communications

Terminal

Housing or housing component

381153, 381158, H04M 100, H04R 2500

Patent

active

050581546

ABSTRACT:
The present invention relates to a telephone handset using an acoustic low impedance receiver transducer. A good reproduction of the low frequencies is obtained by introducing a front cover (7) having pure acoustic ohmic connections (8, 14) from the front side of the transducer diaphragm to the space (9) within the handset house (2).

REFERENCES:
patent: 2109751 (1935-09-01), Warnke
patent: 3632903 (1972-01-01), Lange, Jr.
patent: 4349082 (1982-09-01), Gastmeier
L. L. Bernanek, Acoustics, McGraw-Hill, New York, 1954, pp. 11, 133, 134.

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