发明名称 |
Gain compensation over temperature and frequency variations in wireless transceivers |
摘要 |
Systems and methods are provided for controlling gain compensation over temperature and frequency variations. A variable amplifier may be used to receive a control signal and an input signal. The variable amplifier may be operable to apply a gain to the input signal to generate an output signal, wherein the gain is a function of the control signal. A summation module may be used to combine a gain reference signal and a gain variation signal to generate the control signal. The gain reference signal may be calibrated at a reference temperature and a reference frequency. A gain calibration module may be used to output the gain variation signal as a function of both a current operating temperature and a current operating frequency.
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申请公布号 |
US7356102(B2) |
申请公布日期 |
2008.04.08 |
申请号 |
US20030725689 |
申请日期 |
2003.12.02 |
申请人 |
RESEARCH IN MOTION LIMITED |
发明人 |
MORTON STEVEN P.;JIAO QING ZHONG;JIN XIN |
分类号 |
H04L27/08;H03G1/04;H03G3/30 |
主分类号 |
H04L27/08 |
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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