| 摘要 |
<p>According to the invention, an information signal is sampled, quantized and processed digitally through an information encoder (100). Digitally processed samples (1104, 1106) produced by the encoder (100) are modulated onto a communication channel to create channel symbols having a magnitude of modulation proportional to a characteristic of a respective digitally processed sample. Both a radio frequency (RF) transmission embodiment, and a wireline embodiment are provided. In a final aspect of the present invention, encryption (1101) is provided to ensure communication privacy.</p> |
