American Technology Corporation

Terry Conrad

James J Croft, Iii

Elwood Grant Norris

A method for the dissemination of audio information in a hostile environment via an airdrop to mainly illiterate populations in a target area by means of a leaflet () containing audio circuitry (). In the first step () the hostile target population is identified and the desired content of the audio information is selected. In the next steps, hardened, waterproof audio leaflets () are manufactured () and recorded (), () with the desired audio information. Finally, the audio leaflets are then airdropped () to the target population. The audio message is played () when the leaflet is activated by a member of the target population. The method is practiced using an audio leaflet designed to play an audio message. The leaflet () is embodied in a protective structure capable of surviving (i) an impact resulting from and airdrop and (ii) extended exposure to adverse elements of nature for at least three days. A memory circuit () is contained within the leaflet and is capable of storing at least one audio message. The leaflet may include a lightweight speaker, a power source and an activating switch coupled to the memory circuit, as well as an audio playback circuit coupled to the memory circuit to play the at least one audio message from the lightweight speaker.

Audio information leaflet system

Electroacoustic transducer with diaphragm securing structure and method

An electroacoustic transducer which includes at least one stator member with an operating surface positioned adjacent to an emitter diaphragm. The stator member is comprised of at least one stiff sheet of paper having perforations for acoustic transparency. The stator also includes a means to develop electrical conductivity and to receive an applied voltage. An emitter diaphragm is suspended adjacent to and spaced a sufficient distance from the operating surface of the stator member to enable diaphragm oscillation in response to an applied signal voltage. This arrangement permits diaphragm movement within at least one emitter section without creating restrictive contact on the operating surface of the stator member. The diaphragm may be composed of paper with electrical conductivity sufficient to receive an acoustic signal voltage from a voltage source and to vibrate as an acoustic emitter with respect to forces applied at the stator member. Alternatively, the stator member may be of conventional construction, and combined with an emitter diaphragm constructed of a paper composition. Electrical contacts are also positioned on the stator member and the emitter diaphragm for coupling to appropriate voltage sources.

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San Diego, CA, United States of America

Terry Conrad