A LAN Adapter device having a frequency domain equalizer. The LAN adapter device allows LAN computing devices to connect to the LAN medium. The adapter devices are internal or external to the LAN devices and provide a transceiver and protocol stacks for the LAN devices to communicate with each other....http://www.google.de/patents/US6507585?utm_source=gb-gplus-sharePatent US6507585 - Multi-carrier LAN adapter device using frequency domain equalizer
