发明名称 |
METHOD AND APPARATUS FOR COMPENSATING LOCAL OSCILLATOR FREQUENCY ERROR THROUGH ENVIR0NMENTAL CONTROL |
摘要 |
The frequency error of an oscillator is minimized by characterizing the operating environment of the oscillator. An electronic device monitors parameters that are determined to have an effect on the frequency accuracy of the internal frequency source. Temperature is one parameter known to have an effect on the frequency of the internal frequency source and a primary contributor to device temperature is the RF Power Amplifier (PA). The electronic device collects and stores the activity level of the PA. The effective PA duty cycle over a predetermined period of time is calculated. The LO operating environment is stabilized by operating the PA at the calculated duty cycle when the LO is required to operate in a high stability mode.
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申请公布号 |
IL152664(D0) |
申请公布日期 |
2003.06.24 |
申请号 |
IL20010152664 |
申请日期 |
2001.05.08 |
申请人 |
QUALCOMM INCORPORATED |
发明人 |
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分类号 |
H03L7/06;H03J7/04;H04B1/16;(IPC1-7):H03J |
主分类号 |
H03L7/06 |
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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