| 摘要 |
<p>A digital data demodulator/decoder (30) for either a quadrature amplitude (QAM) or vestigial sideband (VSB) modulated signal includes a quadrature detector (32, 33) feeding through digital filters (38, 39) to a decoder (50) which switches between the in-phase and quadrature outputs of the digital filters (38, 39).</p> |
