1981-07-17
1983-08-23
Rubinson, G. Z.
179156A, 2424, 46227, H04M 105
Patent
active
044005911
ABSTRACT:
A helmet having a built-in modulator and amplifier for voice alteration and projection is disclosed. The helmet includes a forwardly projecting nose housing having a viewing shield and an array of light emitting diodes. The light emitting diodes are coupled to the amplifier through a driver in which selected groups of the diodes are illuminated according to the intensity of the audio signal delivered by the amplifier. A loud speaker is mounted within the nose housing and is enclosed by a sidewall baffle. A microphone is mounted on the outside of the baffle and is connected to an audio alteration unit within the enclosure which includes an analog multiplier, a sine wave oscillator and an audio amplifier. The multiplier has an audio output corresponding to the product of the voice signal produced by the microphone and the sine wave oscillator signal. This produces a modulation effect which simulates an alien sound.
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"Walkie Talkie Helmet Set", p. 98, Neiman-Marcus Christmas Book, 1975.
"Star Force Transceiver", Operating Instructions Sheet, Kingsford, LTD.
"The Gor Space Helmet", Edmund Scientific Catalog.
Jennings Daniel E.
Woodling Richard S.
Byrd Danita R.
Griggs Dennis T.
Rubinson G. Z.
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