US 2012/0237017 A1 · METHOD, DEVICE AND SYSTEM FOR EXTENDING CHANNELS

Abstract

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.

Claims14

Dependent claims

A method for extending channels, comprising:

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,
wherein 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.

1 more element

A device for extending channels, comprising:

a first transformer, connected to a first channel, and comprising a first central tap;
and
a second transformer, connected to a second channel, and comprising a second central tap,
wherein a signal over the first central tap is a common-mode signal of the first channel, a signal over the second central tap is a common-mode signal of the second channel, and the signal over the first central tap and the signal over the second central tap are differentiated to generate a non-cascade extended channel;
and the first channel and the second channel are both twisted-pair channels.

2 more elements

A system for extending channels, comprising a first device and a second device, wherein the first device is at a network side for extending channels, the first device comprises:

a first transformer, connected to a first channel, and comprising a first central tap;
a second transformer, connected to a second channel, and comprising a second central tap,
wherein a signal over the first central tap is a common-mode signal of the first channel, a signal over the second central tap is a common-mode signal of the second channel, and the signal over the first central tap and the signal over the second central tap are differentiated to generate a non-cascade extended channel;
and the first channel and the second channel are both twisted-pair channels;
and
the second device is at a user side for extending channels, the second device comprises
the first transformer, connected to a first channel, and comprising the first central tap;
the second transformer, connected to the second channel, and comprising the second central tap,
wherein the signal over the first central tap is the common-mode signal of the first channel, the signal over the second central tap is the common-mode signal of the second channel, and the signal over the first central tap and the signal over the second central tap are differentiated to generate the non-cascade extended channel;
and the first channel and the second channel are both the twisted-pair channels.

7 more elements

Dependencies are inferred from the claim text.

Method, device and system for extending channels

Life of this patent

Method, device and system for extending channels

Life of this patent

Abstract

Claims14