| 摘要 |
The detection circuit for maintaining a detector stable for temperature in a cellular phone by checking the variation of an output level to vary a resonance frequency according to the temperature, includes a discriminator shifting the resonance to bypass a carrier signal out of modulated signals under a tuning control voltage, a detector receiving the modulated signals to amplify them twice(the first for just the signals and the second for high frequency filtered), an integral amplifier integrating an output from the detector to provide them to the discriminator.
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