PATENT CLAIM ANALYSIS

Application Number: 16157025
Application Type: Utility
Filing Date: 2018-10
Publication Date: 2019-02
Patent Classification: ["398", "079000"]

Abstract:
The present invention includes novel techniques, apparatus, and systems for optical WDM communications. Tunable lasers are employed to generate respective subcarrier frequencies which represent subchannels of an ITU channel to which client signals can be mapped. In one embodiment, subchannels are polarization interleaved to reduce crosstalk. In another embodiment, polarization multiplexing is used to increase the spectral density. Client circuits can be divided and combined with one another before being mapped, independent of one another, to individual subchannels within and across ITU channels. A crosspoint switch can be used to control the client to subchannel mapping, thereby enabling subchannel protection switching and hitless wavelength switching. Network architectures and subchannel transponders, muxponders and crossponders are disclosed, and techniques are employed (at the subchannel level/layer), to facilitate the desired optical routing, switching, concatenation and protection of the client circuits mapped to these subchannels across the nodes of a WDM network.

Claim (Index 25):
A method for multiplexing, transmitting and demultiplexing polarization-multiplexed signals, the method comprising:\n combining a first set of signals aligned along a first linear polarization axis with a second set of signals aligned along a second linear polarization axis, wherein the first and second polarization axes are orthogonally polarized; modifying, via a transmitting medium, polarization states of the first and second sets of signals and maintaining orthogonality of the polarization between the first and second sets of signals; separating two orthogonal polarizations received by a receiver; receiving a plurality of transmitted signals with linear or not linear orthogonal polarization states from the first and second sets of signals; transforming the polarization states of the received plurality of signals to the linear polarization state of the first set of signals to a first output of linear polarization axis; transforming the polarization states of the received plurality of signals to the linear polarization state of the second set of signals to a second output of linear polarization axis that is orthogonal to the first output of linear polarization axis; and monitoring and analyzing one or both outputs of the linear polarization axis, and assuring that the signal polarizations of the first set of signals with the first polarization axis and the signal polarizations of the second set of signals with the second polarization axis are separated and separately detected by the receiver.

Metadata:
- Claim Count in Document: 56.0
- Percentile: 97.0
- Lexical Diversity: 1.8172
- Patent Class: 398.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['12961432', '12961436', '15851673', '13851936', '13797684']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7843825316652384
- 35 USC 102 Novelty (BERT): 0.6216261808782765
- Combined Prediction Score: 0.7681068965865422
- Mean Citation Score: 535.3215739999998
- Max Citation Score: 572.38605
- Similarity Product: 489.9279701954305

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 1
- Claim Label 112: 1
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test