The present invention provides asymmetric digital subscriber line (ADSL) modems including a discrete multitone (DMT) modem module. The DMT modem module includes a digital signal processor (DSP) configured to process control signals for initializing the ADSL modem during installation associated with a...http://www.google.com.hk/patents/US20030198178?utm_source=gb-gplus-share專利 US20030198178 - Digital subscriber line (DSL) modems supporting high-speed universal serial bus (USB) interfaces and related methods and computer program products
