发明授权
- 专利标题: Negative amplitude polar transmitter
- 专利标题(中): 负极极发射机
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申请号: US13419375申请日: 2012-03-13
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公开(公告)号: US08260222B2公开(公告)日: 2012-09-04
- 发明人: Paul J. Husted , David J. Weber , William J. McFarland , William W. Si
- 申请人: Paul J. Husted , David J. Weber , William J. McFarland , William W. Si
- 申请人地址: US CA San Jose
- 专利权人: Qualcomm Atheros, Inc.
- 当前专利权人: Qualcomm Atheros, Inc.
- 当前专利权人地址: US CA San Jose
- 代理机构: Bever, Hoffman & Harms, LLP
- 主分类号: H03C1/62
- IPC分类号: H03C1/62 ; H04B17/00
摘要:
A polar transmitter includes a phase monitoring unit for monitoring input modulating data. When a phase transition exceeds a phase transition threshold, the phase monitor unit can signal an amplitude negation unit to invert the amplitude data coupled to the polar amplifier. The phase monitoring unit can also add an offset to the phase data that is provided to a frequency synthesizer. In another embodiment, when the phase transition threshold is exceeded, the phase monitoring unit can trigger inverting differential frequency data coupled to the polar amplifier. In one embodiment, the phase offset and the amplitude negation are applied until a second phase transition value exceeding the phase transition threshold is detected. If such an event is detected, then the input amplitude data is no longer inverted and the phase offset value is no longer added to the modulating data.
公开/授权文献
- US20120170681A1 Negative Amplitude Polar Transmitter 公开/授权日:2012-07-05
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