CDMA - Code-Division Multiple Access
Short for Code-Division Multiple Access, a digital cellular technology that uses spread-spectrum techniques. Unlike competing systems, such as GSM, that use TDMA, CDMA does not assign a specific frequency to each user. Instead, every channel uses the full available spectrum. Individual conversations are encoded with a pseudo-random digital sequence. CDMA consistently provides better capacity for voice and data communications than other commercial mobile technologies, allowing more subscribers to connect at any given time, and it is the common platform on which 3G technologies are built.
CDMA is a military technology first used during World War II by English allies to foil German attempts at jamming transmissions. The allies decided to transmit over several frequencies, instead of one, making it difficult for the Germans to pick up the complete signal. Because Qualcomm created communications chips for CDMA technology, it was privy to the classified information. Once the information became public, Qualcomm claimed patents on the technology and became the first to commercialize it.
CDMA is a military technology first used during World War II by English allies to foil German attempts at jamming transmissions. The allies decided to transmit over several frequencies, instead of one, making it difficult for the Germans to pick up the complete signal. Because Qualcomm created communications chips for CDMA technology, it was privy to the classified information. Once the information became public, Qualcomm claimed patents on the technology and became the first to commercialize it.
SmartPhone news
Smartphone Summit 2005 Presents 'Smartphone Enterprise Solutions' - An exclusive conference event at The W Hotel San Francisco on September 26, 2005 dedicated to bringing you the top Smartphone based ...
A Samsung spokesperson today confirmed that the company no longer plans to release the i645 CDMA smartphone. The i645 was to be the first Windows Mobile Smartphone with EV-DO high-speed data, and was ...
Microsoft anounced Windows Mobile 5.0
Windows Mobile 5.0 has familiar features that will help you manage e-mail and Office attachments when out of the office. Windows Mobile 5.0 Magneto The next version of Windows Mobile Softwar...