PATENT CLAIM ANALYSIS

Application Number: 16039560
Application Type: Utility
Filing Date: 2018-07
Publication Date: 2020-01
Patent Classification: ["398", "202000"]

Abstract:
A self-coherent optical data receiver configured to use direct detection of optical signals that is compatible with full (amplitude/phase) electric-field reconstruction. To enable the latter, the direct-detected optical signal includes CW light whose carrier frequency is spectrally aligned with a roll-off edge of the data-modulated portion of the signal. In an example embodiment, the receiver may employ two digital filters placed upstream and downstream, respectively, of the field-reconstruction circuit. The upstream filter is configurable to at least partially cancel the effects of SSBI caused by the direct detection. The downstream filter can be configured to perform electronic dispersion compensation and/or electronic polarization demultiplexing. In different embodiments, a filter controller may operate to adaptively change the filter coefficients of the upstream filter based on different signals generated within the digital receive chain. For example, the filter controller can use either input or output of the downstream filter for this purpose.

Claim (Index 18):
The apparatus of  claim 17 , wherein the CW light has a carrier frequency that is spectrally aligned with a roll-off edge of the modulated optical signal.

Metadata:
- Claim Count in Document: 50.0
- Percentile: 95.0
- Lexical Diversity: 1.64
- Patent Class: 398.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: False
- Related Applications: ['14575596', '15475300', '15966697', '15434687', '14154370']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6964670619519091
- 35 USC 102 Novelty (BERT): 0.4867605397352244
- Combined Prediction Score: 0.6754964097302407
- Mean Citation Score: 177.57446199999995
- Max Citation Score: 182.13019
- Similarity Product: 145.96077455212355

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