1940 At the beginning of the year, hedy lamarr and piano composer George Antell designed an airplane navigation system. George conceived a pair of paper rolls, which were placed in the plane and torpedo respectively, and specified the order of frequency change. With the help of Heidi and George's research and other scientists, their achievements were gradually completed.
194 1 year, they completed this research and applied for a patent for the design of their "frequency hopping" device. Radio "frequency hopping technology" is the "spread spectrum communication technology" in the 2nd1century, which is the embryonic form of wifi now, so hedy lamarr is also called the mother of wifi.
Character achievement:
1985, an unknown American company was established in San Diego on the basis of "frequency hopping" technology, and quietly developed a CDMA wireless digital communication system. This company is Qualcomm. Qualcomm became one of the top 500 enterprises in the world in 2 1 century, but Heidi, the inventor of its theoretical origin, was almost forgotten.
1997, when the communication technology based on CDMA began to enter the public life, the scientific community remembered Heidi. The American Electronic Frontier Foundation awarded the "Electronic Frontier Foundation-Pioneer Award" to hedy lamarr, the first applicant of the patent 50 years ago.
The award aims to recognize Heidi's contribution to computer communication. Heidi, 83, is regarded as the mother of CDMA by scientists.