Accession Number : ADD001149

Title :   Audio Transmission and Reception Assembly.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C

Personal Author(s) : Kaufman,Rubin P ; Rosenfeld,Jack B ; Schiller,Elaine

Report Date : 25 Feb 1975

Pagination or Media Count : 8

Abstract : The patent describes an audio transmission reception assembly which has a hollow tubular conduit arranged to conduct audio messages from a source within a waterproof enclosure, which may be worn by attachment to the clothing of the user, for conduction to the entrance to the ear canal of the user. The tubular conduit has a capillary portion connected adjacent to the source of the audio messages which renders the conduit virtually waterproof even when subjected to underwater conditions. An audio responsive means is contained in the waterproof enclosure and sealed from the outside environment by a protective resilient membrane, and a suitable switch supported on the waterproof enclosure provides means for controllably connecting both the audio responsive means and the source of audio messages to a transmitting and receiving radio such as may be carried on the back of the user.

Descriptors :   *Earphones, *Microphones, *Patents, Radio equipment, Portable equipment, Tactical communications, Human factors engineering

Subject Categories : Radio Communications

Distribution Statement : APPROVED FOR PUBLIC RELEASE