| 摘要 |
<p>Disclosed are a method (300) and bi-directional communication device (102), such as a cable modem, for iteratively performing the following steps for each of a plurality of communications channels until a downstream data signal is detected. Selecting (306) a communications channel and checking for a downstream signal having a first bandwidth (308) complying with a first system interface standard, and if (310) the downstream signal having said first bandwidth is not detected, then checking (312) the communications channel for a downstream signal having a second bandwidth complying with a second system interface standard.</p> |
