专利名称：System for calibrating wireless
communications devices
发明人：Tomoki Takeya,Justin Gregg,Ruben
Caballero
申请号：US12128534申请日：20080528公开号：US08903374B2公开日：20141202
专利附图：
摘要：A wireless electronic device such as a portable electronic device may contain abaseband module. Power amplifier circuitry in the device may amplify radio-frequency
signals for transmission. During calibration measurements, a computer directs thebaseband module to generate control signals that adjust the gain of the power amplifiercircuitry. The computer may also direct the baseband module to generate a series ofmodulated or unmodulated test tones at one or more communications channelfrequencies. A power sensor may be connected to the output of the power amplifiercircuitry using a transmission line path. The computer and power sensor may be used inmaking power measurements on radio-frequency signals at the output of the poweramplifier while power amplifier gain and test tone frequency adjustments are beingmade. Power amplifier calibration data may be produced and stored in the electronicdevice based on the power measurements.
申请人：Tomoki Takeya,Justin Gregg,Ruben Caballero
地址：Santa Clara CA US,San Francisco CA US,San Jose CA US
国籍：US,US,US
代理机构：Treyz Law Group
代理人：G. Victor Treyz,Michael H. Lyons
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