An object of the invention is to provide a method of secret communication which is relatively simply and reliable in operations, but at the same time is difficult to discover or decipher.

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Forbes recently named Johnson the Most Influential Athlete in the U.S. The secret, he says, is communication with his crew chief.

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U.S. Patent No. 2, 292, 387 for a "Secret Communication System" was issued to Hedy Kiesler Markey and George Antheil in 1942. (Markey was the surname of a husband she had divorced in 1940.) The frequency-hopping technology was not put to use in World War II, but it was employed in 1962 during the blockade of Cuba.

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