| 摘要 |
<P>PROBLEM TO BE SOLVED: To reduce the power consumption and the cost of an amplifier, and to simplify the amplifier by preventing the generation of spurious signals from an analog amplifier, without the need for a large transmission back-off in a transmitter for code division multiplexed signal for use in spread spectrum communication. <P>SOLUTION: Transmission signals on a plurality of channels are subjected to spread spectrum processing (19) with a spread code (20), and a maximum amplitude value of code division multiplex signals (21) multiplexed is limited by an amplitude control circuit (22), to reduce the back-off of the analog amplifier (27) at the post-stage. <P>COPYRIGHT: (C)2004,JPO&NCIPI |
