PATENT CLAIM ANALYSIS

Application Number: 15749821
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2018-08
Patent Classification: ["333", "120000"]

Abstract:
A demultiplexer/multiplexer includes an input terminal, which receives input signals from respective phases of a quadrifilar helix antenna; phase shifter/separator/mixers, which alternately phase-shift right-handed and left-handed circularly polarized waves of the input signals, respectively, by 90°/−90° to produce phase-shifted waves to be combined in an inphase combination; phase shifter/mixers, which receive the left-handed or right-handed circularly polarized waves from the phase shifter/separator/mixers, and phase-shift one of the left-handed and right-handed circularly polarized waves by 180°/−180° to produce a phase-shifted wave to be combined with the other of the left-handed and right-handed circularly polarized waves in an antiphase combination; a variable phase shifter, which adjusts an output signal from the phase shifter/mixers by a phase-shift amount that is received in advance; and an output terminal, which outputs an output signal from the variable phase shifter and the other output signal that is not input to the variable phase shifter.

Claim (Index 6):
A fading elimination method, which is performed by a demultiplexer/multiplexer, the fading elimination method comprising:\n receiving input signals as an input signal of phase 1, an input signal of phase 2, an input signal of phase 3, and an input signal of phase 4 from an input terminal, which is connected to each phase of a quadrifilar helix antenna having phases of phase 1, phase 2, phase 3, and phase 4; receiving the input signal of phase 1 and the input signal of phase 2 from the input terminal, alternately phase shifting the input signal of phase 1 and the input signal of phase 2, respectively, by 90\u00b0 or \u221290\u00b0 to produce phase-shifted signals, and then combining the phase-shifted signals in an inphase combination to output a first left-handed circularly polarized wave and a first right-handed circularly polarized wave; receiving the input signal of phase 3 and the input signal of phase 4 from the input terminal, alternately phase shifting the input signal of phase 3 and the input signal of phase 4, respectively, by 90\u00b0 or \u221290\u00b0 to produce phase-shifted signals, and then combining the phase-shifted signals in an inphase combination to output a second left-handed circularly polarized wave and a second right-handed circularly polarized wave; receiving the first left-handed circularly polarized wave and the second left-handed circularly polarized wave, phase shifting one of the first left-handed circularly polarized wave and the second left-handed circularly polarized wave by 180\u00b0 or \u2212180\u00b0 to produce a phase-shifted wave, and then combining the phase-shifted wave and the other of the first left-handed circularly polarized wave and the second left-handed circularly polarized wave in an antiphase combination to output a combined left-handed circularly polarized wave; receiving the first right-handed circularly polarized wave and the second right-handed circularly polarized wave, phase shifting one of the first right-handed circularly polarized wave and the second right-handed circularly polarized wave by 180\u00b0 or \u2212180\u00b0 to produce a phase-shifted wave, and then combining the phase-shifted wave and the other of the first right-handed circularly polarized wave and the second right-handed circularly polarized wave in an inphase combination to output a combined right-handed circularly polarized wave; receiving one of the combined left-handed circularly polarized wave and the combined right-handed circularly polarized wave, and adjusting the received one of the combined left-handed circularly polarized wave and the combined right-handed circularly polarized wave by an amount of phase shift that is received in advance from a control terminal, to output the adjusted circularly polarized wave; and outputting the adjusted circularly polarized wave, and the other of the combined left-handed circularly polarized wave and the combined right-handed circularly polarized wave from an output terminal.

Metadata:
- Claim Count in Document: 1.0
- Percentile: 88.0
- Lexical Diversity: 2.55556
- Patent Class: 333.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15507860', '11071423', '12533185', '12904658', '13795544']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.824159607201319
- 35 USC 102 Novelty (BERT): 0.5038367029036607
- Combined Prediction Score: 0.7921273167715531
- Mean Citation Score: 205.642652
- Max Citation Score: 224.37268
- Similarity Product: 143.19960264213088

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