Multiple choice general knowledge

Which company has a patent for CDMA Technology?

  1. AT&T

  2. Qualcomm

  3. British Telecom

  4. Ericson
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Qualcomm invented and holds key patents for CDMA (Code Division Multiple Access) technology, founded by Irwin Jacobs and others. CDMA became a dominant 2G/3G mobile standard in markets like the US and Korea. AT&T, British Telecom, and Ericsson are telecom companies but Ericsson developed GSM (not CDMA) as the competing standard.

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