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 10):
The optical device according to  claim 9 , further comprising:\n a different monitoring optical filter that is provided between each adjacent ones of the stages of the plurality of optical filters and has the optical path length difference equal to that of the optical filter in the stage at the input side by one stage; and a different monitoring photodetector coupled to the output side of the different monitoring optical filter; wherein the different monitoring optical filter includes an asymmetrical Mach-Zehnder interferometer including a first arm waveguide and a second arm waveguide that have the optical path lengths different from each other; and the plurality of wavelength adjustment units area plurality of optical path length adjustment units each of which is provided on at least one of the first arm waveguide and the second arm waveguide included in the asymmetrical Mach-Zehnder interferometer included in each of the plurality of optical filters, the monitoring optical filter and the different monitoring optical filter and varies the optical path length thereof in response to the optical path length difference to cause wavelength shifts of an equal amount in a same direction.

Metadata:
- Claim Count in Document: 15.0
- Percentile: 96.0
- Lexical Diversity: 2.07018
- Patent Class: 398.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['10727171', '10560132', '12324205', '12983637', '12289870']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6403041462979492
- 35 USC 102 Novelty (BERT): 0.5143477331577802
- Combined Prediction Score: 0.6277085049839324
- Mean Citation Score: 230.80234
- Max Citation Score: 247.60487
- Similarity Product: 196.90454042362808

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