发明授权
- 专利标题: Digital synthesizer
- 专利标题(中): 数字合成器
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申请号: US09593307申请日: 2000-06-13
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公开(公告)号: US06449317B1公开(公告)日: 2002-09-10
- 发明人: David Norton Critchlow , Moshe Yehushua , Graham Martin Avis , Wade Lyle Heimbigner , Karle Joseph Johnson , George Alan Wiley
- 申请人: David Norton Critchlow , Moshe Yehushua , Graham Martin Avis , Wade Lyle Heimbigner , Karle Joseph Johnson , George Alan Wiley
- 主分类号: H04L2720
- IPC分类号: H04L2720
摘要:
The present invention is a method and system for processing communication signals in a wireless telecommunication system having at least two subscriber units. The subscriber units communicate with each other through a selected band of radio frequencies over a plurality of radio frequency channels. The system generates a fixed based radio frequency signal and a digital intermediate frequency signal. The fixed based radio frequency signal and the digital intermediate frequency signal are then combined to produce a carrier signal which is communicated between the at least two subscribers.