发明名称 |
DIRECT CONVERSION DIGITAL DOMAIN CONTROL |
摘要 |
A system and method for a multi-band direct conversion wireless communication receiver is presented. The system incorporates a low noise amplifier (LNA) configured to amplify received RF signals, a local oscillator (LO) configured to output a frequency, and I and Q channel mixers. Each mixer has a first input operatively coupled to the LNA, a second input operatively coupled to the LO output, and an output. The system further includes an adjustment mechanism configured to adjust drive level of the LO depending on a level of jammers detected by the receiver. Thus, the receiver may operate in multiple wireless communication bands and modes and meet the associated specifications.
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申请公布号 |
WO02056490(A9) |
申请公布日期 |
2004.04.08 |
申请号 |
WO2002US00891 |
申请日期 |
2002.01.10 |
申请人 |
QUALCOMM INCORPORATED |
发明人 |
PETERZELL, PAUL, E.;SAHOTA, KAMAL |
分类号 |
H04B1/10;H04B1/30;H04B1/40;(IPC1-7):H04B1/30 |
主分类号 |
H04B1/10 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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