H - Electricity – 04 – B
Patent
H - Electricity
04
B
H04B 1/04 (2006.01)
Patent
CA 2089589
- 13 - ABSTRACT OF THE DISCLOSURE In order to realize control of a transmission siganl level from a radio trasmitter of TDMA (Time Division Multiplex System) with a simplified arrangement and with a high precision, a control circuit 9 outputs a transmission signalfor each time slot and a level designation signal. A levelcontrol signal generator circuit 4 generates a level control signal in response to the level designation signal and outputs the level control signal through D/A converter 5 to a level control circuit 2. The level of the modulated transmission signal is controlled by the level control circuit 2 and is amplified by a RF amplifier circuit 3 thereby being output outside. The output level is detected by a detecter circuit 8 and fedback through A/D converter 7 and a detection characteristic storage circuit 8 to level control signal generator circuit 4 so that the value of the level control signal is corrected.
Corporation Nec
G. Ronald Bell & Associates
LandOfFree
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