Browse Prior Art Database

Noise Excluding Labyrinth

IP.com Disclosure Number: IPCOM000078463D
Original Publication Date: 1973-Jan-01
Included in the Prior Art Database: 2005-Feb-26
Document File: 2 page(s) / 37K

Publishing Venue

IBM

Related People

Hazlitt, RG: AUTHOR

Abstract

An acoustic coupler 10 is illustrated having an opening 11 for oral communication to a telephone transmitter 12. A slider 13 mates with the coupler and includes a data-audio speaker to supply the data to the telephone transmitter. The slider 13 may be operated to an open position for oral communication and to a closed position for data transmission.

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Noise Excluding Labyrinth

An acoustic coupler 10 is illustrated having an opening 11 for oral communication to a telephone transmitter 12. A slider 13 mates with the coupler and includes a data-audio speaker to supply the data to the telephone transmitter. The slider 13 may be operated to an open position for oral communication and to a closed position for data transmission.

An arrangement of grooves 14 and ribs 15 of, respectively, the coupler 10 and slider 13 block ambient noise from entering the acoustic coupler when the slider is in the closed position, without the aid of additional sealing material. The tongue and groove arrangement acts as a seal by forcing the ambient noise to change direction 90 degrees several times, continuously baffling and absorbing the noise. Sealing surfaces 16, 17 are also provided at one end of the labyrinth.

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