According to the voice of China's "news in the vertical and horizontal" report, Hedy in the 230 's Hollywood movie star, she was known as the "Hollywood Vase" film company in the publicity also often highlighted she is "the most beautiful woman in the world", even Leigh also because of the look like her and feel proud. However, Heidi, unwilling to be a vase, was devoted to scientific research in order to prove that she was not only beautiful but also wise. At that time, radio signals sometimes clog up, and Heidi realizes that it can prevent enemy interference by constantly and arbitrarily changing the radio frequency to prevent the occurrence of signal blockage. In 1940, she and her partner designed a frequency-hopping device and donated it to the government. Later, they got the American patent, which is "spread spectrum communication technology". Sounds a bit professional, so to speak, now the use of CDMA technology, 3G technology is based on this design. [Page] [Page] [Page] [Page] Product mobile phone notebook camera home Appliances MP3 Creative Products [Page] products Daquan mobile phone notebook camera home Appliances MP3 Creative Products [Page] products Daquan mobile phone notebook camera home Appliances MP3 Creative Products [Page] Products Daquan mobile phone notebook camera home Appliances MP3 Creative Products [Page] products Daquan mobile phone notebook camera home Appliances MP3 Creative Products [Page] products, mobile phone notebook camera home Appliances MP3 Creative Products [Page] Products Mobile phone Notebook camera home Appliances MP3 Creative Products [Page] products Daquan mobile phone notebook camera home Appliances MP3 Creative Products [Page] products Daquan mobile phone notebook camera home Appliances MP3 Creative Products [Page] products, mobile phone Notebook camera Home Appliances MP3 Creative Products [Page] products Daquan mobile phone notebook camera home Appliances MP3 Creative Products [Page] products Daquan mobile phone notebook camera home Appliances MP3 Creative Products [Page] products all over the mobile phone notebook phase Machine Home Appliances MP3 Creative Products
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