PATENT CLAIM ANALYSIS

Application Number: 16153341
Application Type: Utility
Filing Date: 2018-10
Publication Date: 2019-02
Patent Classification: ["398", "208000"]

Abstract:
A method and structure for tap centering in a coherent optical receiver device. The center of gravity (CG) of the filter coefficients can be used to evaluate a proper convergence of a time-domain adaptive equalizer. However, the computation of CG in a dual-polarization optical coherent receiver is difficult when a frequency domain (FD) adaptive equalizer is adopted. In this case, the implementation of several inverse fast-Fourier transform (IFFT) stages is required to back time domain impulse response. Here, examples of the present invention estimate CG directly from the FD equalizer taps and compensate for an error of convergence based off of the estimated CG. This estimation method and associated device architecture is able to achieve an excellent tradeoff between accuracy and complexity.

Claim (Index 5):
The device of  claim 4  wherein the evaluation module is configured to estimate the group delay n d  from the plurality of PMD taps.

Metadata:
- Claim Count in Document: 74.0
- Percentile: 97.0
- Lexical Diversity: 1.61176
- Patent Class: 398.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: False
- Related Applications: ['15792582', '15792396', '16134722', '15792416', '10997442']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6952667829578979
- 35 USC 102 Novelty (BERT): 0.6351644485267559
- Combined Prediction Score: 0.6892565495147838
- Mean Citation Score: 375.098438
- Max Citation Score: 548.48047
- Similarity Product: 514.488457000345

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