PATENT CLAIM ANALYSIS

Application Number: 15880242
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2019-07
Patent Classification: ["370", "497000"]

Abstract:
A frequency-selective system that may be used as, or as part of, an add/drop multiplexer. An input signal is fed to a Mach-Zehnder interferometer configured to drop, or suppress, by destructive interference, a signal component in a first frequency band from among a plurality of frequency bands. One or more bandpass filters in one arm of the Mach-Zehnder interferometer suppress other frequencies, outside of the first frequency band, so that signals at these other frequencies are not suppressed by destructive interference and are present at the output of the Mach-Zehnder interferometer. A coupler connected after the output of the Mach-Zehnder interferometer adds, into the signal path, a replacement for the dropped signal.

Claim (Index 1):
A frequency selective system having a first input for receiving an input signal including a plurality of frequency bands and a first output, the frequency selective system comprising:\n a first coupler for splitting the input signal to a first path and a second path each having an input and an output, the first path comprising a first bandpass filter having a pass band extending over a first frequency band of the plurality of frequency bands; and a second coupler, having a first input connected to the output of the first path and a second input connected to the output of the second path, for combining the output of the first path and the output of the second path, the first coupler, the first path, the second path, and the second coupler being configured to produce destructive interference, at the output of the second coupler, of signal components, in the input signal, within the first frequency band.

Metadata:
- Claim Count in Document: 8.0
- Percentile: 86.0
- Lexical Diversity: 1.81159
- Patent Class: 370.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['14854415', '10838985', '10775799', '11369529', '10344154']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.5314636102493776
- 35 USC 102 Novelty (BERT): 0.48105502665791
- Combined Prediction Score: 0.5264227518902309
- Mean Citation Score: 176.95356999999996
- Max Citation Score: 192.9188
- Similarity Product: 138.23069822864534

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

Dataset: test