Scenario Analysis in Development of the Fourth Generation Mobile Communication in Year 2015
碩士 === 國立交通大學 === 管理學院碩士在職專班科技管理組 === 95 === Heinrich Hertz found electromagnetic wave 1887. Guglielmo Marconi invented wireless telegraphy 1897. "Father of radio", Lee de Forest, invented vacuum triode 1907. Radio began to be used 1920. Television and Frequency Modulation (FM) radio inven...
| Main Authors: | , |
|---|---|
| Other Authors: | |
| Format: | Others |
| Language: | zh-TW |
| Published: |
2007
|
| Online Access: | http://ndltd.ncl.edu.tw/handle/61445068880284014505 |