PATENT CLAIM ANALYSIS

Application Number: 16117958
Application Type: Utility
Filing Date: 2018-08
Publication Date: 2019-03
Patent Classification: ["398", "079000"]

Abstract:
A demultiplexing unit that is provided in an optical device and performs demultiplexing into a plurality of optical signals having wavelengths different from each other includes a plurality of optical filters that are coupled in multiple stages and in which a period of a peak wavelength of a transmission spectrum differs among different stages, a monitoring optical filter coupled to one of the plurality of optical filters, a monitoring photodetector coupled to the output side of the monitoring optical filter, and a plurality of wavelength adjustment units that are provided individually for the plurality of optical filters and the monitoring optical filter and cause wavelength shifts of an equal amount in a same direction.

Claim (Index 14):
The optical apparatus according to  claim 13 , wherein\n the plurality of wavelength adjustment units are a plurality of first optical path length adjustment units that are provided on the first arm waveguides included in the asymmetrical Mach-Zehnder interferometers in each of the plurality of optical filters and the monitoring optical filter and each varies the optical path length thereof in response to the optical path length difference to perform wavelength shift to one of the long wavelength side and the short wavelength side, and a plurality of second optical path length adjustment units that are provided on the second arm waveguides included in the asymmetrical Mach-Zehnder interferometers in each of the plurality of optical filters and the monitoring optical filter and each varies the optical path length thereof in response to the optical path length difference to perform wavelength shift to the other one of the long wavelength side and the short wavelength side; and the controller performs control for the plurality of first optical path length adjustment units and the plurality of second optical path length adjustment units such that the value detected by the monitoring photodetector is minimized.

Metadata:
- Claim Count in Document: 15.0
- Percentile: 96.0
- Lexical Diversity: 2.07018
- Patent Class: 398.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['10727171', '10560132', '12324205', '12983637', '12289870']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6667352234482004
- 35 USC 102 Novelty (BERT): 0.5190100394179284
- Combined Prediction Score: 0.6519627050451732
- Mean Citation Score: 230.80234
- Max Citation Score: 247.60487
- Similarity Product: 190.8291268642831

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