PATENT CLAIM ANALYSIS

Application Number: 15756246
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2018-08
Patent Classification: ["398", "044000"]

Abstract:
A mode division multiplexing passive optical network (PON) in which channel estimation/inversion is performed in the optical domain. The PON comprises a plurality of input channels; a multiplexer having a plurality of input ports connected to a respective one of the input channels; an optical fibre having an uplink end connected to an output port of the multiplexer, whereby the multiplexer outputs a mode multiplexed signal corresponding to the optical signals from the plurality of input channels. The PON includes an optical equalizer arranged to transfer power between optical signals having different modes to compensate for crosstalk between the different modes. In this system, compensation for crosstalk occurs in the optical domain, e.g. by using the optical equalizer to adapt the optical signals where necessary.

Claim (Index 1):
A mode division multiplexing passive optical network comprising:\n a plurality of input channels, each of the plurality of input channels being arranged to convey an optical signal in a different one of a plurality of modes; an optical transfer unit comprising:\n a multiplexer having a plurality of input ports and an output port, wherein each of the plurality of input ports is connected to a respective one of the plurality of input channels; \n an optical fiber having an uplink end connected to the output port, wherein the optical fiber is arranged to receive from the multiplexer a mode multiplexed signal corresponding to the optical signals from the plurality of input channels; \n a demultiplexer having an input port and a plurality of output ports, wherein the input port is connected to a downlink end of the optical fiber, and wherein the demultiplexer is arranged to divide the mode multiplexed signal between each of the plurality of output ports; \n a plurality of output channels, each of the plurality of output channels being connected to a respective one of the plurality of output ports and being arranged to convey an optical signal in a different one of the plurality of modes conveyed by the plurality of input channels; and \n an optical equalizer arranged to transfer power between optical signals having different modes to compensate for crosstalk between the different modes.

Metadata:
- Claim Count in Document: 29.0
- Percentile: 88.0
- Lexical Diversity: 1.95714
- Patent Class: 398.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15762386', '13584129', '15385944', '16071588', '16071586']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6120095526795649
- 35 USC 102 Novelty (BERT): 0.5945912232653332
- Combined Prediction Score: 0.6102677197381418
- Mean Citation Score: 244.53001
- Max Citation Score: 448.49127
- Similarity Product: 442.37781148518377

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 1
- Claim Label 112: 0
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test