Communication Network with Skew Compensation
AssigneeInfinera Corporation
InventorsDrew D. Perkins, David F. Welch, Ting-Kuang Chiang, Edward E. Sprague, Parthiban Kandappan, Stephen G. Grubb, Prasad Paranjape
Life of this patent
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Abstract
Embodiments of the present invention compensate for skew across a wavelength division multiplexed network. The network is a wavelength division multiplexed optical transport network. The skew compensation can be performed electrically or optically. It can be performed on the transmission side of the network, the receiver side of the network or at any intermediary node on the network.
Claims26
A networking system for routing a signal, the system comprising:
- a transmission node that transmits the signal;
- a first path that transports a first portion of the signal;
- a second path that transports a second portion of the signal;
- a skew compensation module, coupled within the networking system, that compensates for skew relative to the first and second paths whereby the resulting skew relative to the first and second paths is within a skew limit;
- and
- a receiver node that receives the first and second portions of the signal.
A transceiver that compensates for skew, the transceiver comprising:
- an input on which a signal is received;
- a deinterleaver, coupled to the input, that partitions the signal into a first signal portion that can be transmitted on a first communication path and a second signal portion that can be transmitted on a second communication path;
- and
- a skew compensation module, coupled to the deinterleaver, that compensates for skew relative to the first and second communication path.
A transceiver that compensates for skew, the transceiver comprising:
- a first input on which a first input portion is received;
- a second input on which a second input portion is received;
- a skew compensation module, coupled within the transceiver node, that compensates for skew relative to the first and second signal portions;
- a first output on which a first output portion is transmitted;
- a second output on which a second output portion is transmitted.
A method for compensating for skew, the method comprising:
- providing a first communication path for transmitting a first portion of a signal;
- providing a second communication path for transmitting a second portion of the signal;
- and
- compensating for skew relative to the first and second communication paths such the relative skew is equalized.
Dependencies are inferred from the claim text.