5a641156_Shenzhen___Patent_applications__Description
[Patent application number] 20120237017 [Published] 09-20-2012 [Description] 
METHOD, DEVICE AND SYSTEM FOR EXTENDING CHANNELS - The present invention provides a method, a device and a system for extending channels, and belongs to the field of communications technologies. The method includes: generating a non-cascade extended channel by using a first channel and a second channel; and generating a first-level cascade extended channel by using the non-cascade extended channel and a third channel, where the first channel and the second channel are both twisted-pair channels, and the third channel is a twisted-pair channel or another non-cascade extended channel. The device includes a first transformer and a second transformer. The system includes a first device and a second device.
Lv, Shenzhen - Patent applications