[ RadSafe ] Hede Lamar (sp?) [Hedy Lamarr]

Maury Siskel maurysis at ev1.net
Fri Sep 8 18:14:51 CDT 2006

FYI -- here is what happened:

Military Communications System

Silver Screen actress Hedy Lamarr (born 1914) enjoyed one of the more 
memorable careers in Hollywood. Her name still ranks among the brightest 
lights in the history of movies. But what many people may not know is 
that she helped the Allies win World War II.

On June 10, 1941, Lamarr and composer George Antheil received Patent No. 
2,292,387 for their invention of a classified communication system that 
was especially useful for submarines. The system was a stroke of genius. 
It was based on radio frequencies changed at irregular periods that were 
synchronized between the transmitter and receiver.

While a message was being sent, both the transmitter and the receiver 
would simultaneously change radio frequencies according to a special 
code. At each end of the transmission, identical slotted paper rolls, 
similar to those used on player pianos, dictated the code according to 
their pattern of slots. Just as a player piano holds and changes notes 
at different intervals to make a melody, their invention held and 
changed radio frequencies to make an unbreakable code. Signals could be 
transmitted without being detected, deciphered or jammed.

Lamarr has received several awards for her invention, including the 1997 
Pioneer Award from the Electronic Frontier Foundation for her 
contributions to the field of spread-spectrum technology.

Orthen, Rick wrote:

>And not to be confused with Harvey Korman as "Hedley Lamarr" in what
>1974 cinema comedy?

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