| 摘要 |
Control circuitry for a transmitter comprises means for receiving a first plurality of signals at different frequencies at the same time; means for generating a second plurality of signals; means for reducing the frequency of the first plurality of signals by mixing the first plurality of signals with said second plurality of signals to provide a series of samples of said first plurality of signals, wherein each of said samples is separated in time; and means for adjusting a characteristic of signals to be transmitted dependent upon said samples. |
