| 摘要 |
<p>A data signal is processed to change its form and spectral content without introducing undesirable frequency and amplitude effects. Multiple data signal states, which determine the essential characteristics of the output signal wave configuration, are utilized in conjunction with clock signals at a rate substantially in excess of twice the largest frequency component of the data signal in order to construct the desired output signal wave configuration. In one embodiment, an input data signal (23, 26) is in an NRZ format and is processed for conversion to the biphase, or Manchester, format by a ROM table (10) look-up function addressed jointly by the input signal states and the clock (11) signals. </p> |
