发明公开
EP0885510A4 METHOD AND APPARATUS FOR ROUTING A DIGITIZED RF SIGNAL TO A PLURALITY OF PATHS
失效
方法和设备的数字化路由射频信号路径下的多个
- 专利标题: METHOD AND APPARATUS FOR ROUTING A DIGITIZED RF SIGNAL TO A PLURALITY OF PATHS
- 专利标题(中): 方法和设备的数字化路由射频信号路径下的多个
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申请号: EP97901934申请日: 1997-01-15
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公开(公告)号: EP0885510A4公开(公告)日: 2003-02-05
- 发明人: LUREY DANIEL M , LUZ YUDA Y , RADER SHEILA M , ROTTINGHAUS ALAN P
- 申请人: MOTOROLA INC
- 专利权人: MOTOROLA INC
- 当前专利权人: MOTOROLA INC
- 优先权: US61922996 1996-03-21
- 主分类号: H03D7/00
- IPC分类号: H03D7/00 ; H01Q1/24 ; H01Q3/26 ; H03B28/00 ; H03C1/00 ; H03C3/00 ; H03D7/16 ; H04B1/04 ; H04B1/16 ; H04B1/26 ; H04B1/28 ; H04B1/38 ; H04B1/40 ; H04B7/04 ; H04B7/06 ; H04B7/08 ; H04B7/185 ; H04B7/24 ; H04B7/26 ; H04L1/06 ; H04L1/22 ; H04L27/20 ; H04W4/18 ; H04W88/06 ; H04L25/08
摘要:
An apparatus and a method for routing digitized radio frequency (RF) signals (140-143) to a plurality of paths are described herein. In accordance with a first preferred embodiment, the apparatus includes a digital converter/modulator (DUC) (125 or 129) coupled to a scaling and switching network (100N) which includes, at least, a first, second, third and fourth digital switch, and a first, second and third adder. Within the scaling and switching network, the first digital switch is responsive to the DUC. The first adder is responsive to the first and second digital switches, while the second adder is responsive to the third and fourth digital switches. Finally, the third adder is responsive to the first and second adders.
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