RADIO TRANSMITTER
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United States of America
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Issued Date -
Feb 27, 2020
app pub date -
Jul 2, 2019
filing date -
Jul 2, 2019
priority date (Note) -
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Abstract
In a gain control device, a gain control voltage adjust circuit includes a time-constant circuit and outputs an adjusted gain control voltage depending on an adjustment signal and a control voltage generated by a differential amplifier upon input of the adjustment signal. An adjustment signal generation circuit outputs the adjustment signal during an adjustment signal output period. This period is a specified period before a first burst signal is output from a signal output unit and where a burst signal is not output from the signal output unit. The adjustment signal is to make the adjusted gain control voltage closer to a target voltage. The target voltage is a gain control voltage output from the gain control voltage adjust circuit and corresponding to a steady part of a second burst signal. The second burst signal is a burst signal output before the first burst signal.
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