PATENT CLAIM ANALYSIS

Application Number: 15742791
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2018-07
Patent Classification: ["320", "108000"]

Abstract:
In a non-contact power feeding system which is formed with a power transmission device having a power transmission-side resonant circuit including a power transmission-side coil and a power reception device having a power reception-side resonant circuit including a power reception-side coil and which can transmit and receive power by a magnetic field resonance method, when the power is transmitted, the power transmission device monitors the amplitude of a current flowing through the power transmission-side coil. Then, when a current amplitude detection value (V mFOD ) falls outside a predetermined normal range, it is determined that a foreign object is present, and thus the power transmission is stopped.

Claim (Index 6):
The power transmission device according to any one of  claims 1  to  5 ,\n wherein the power reception device includes: a power reception-side resonant circuit which includes a power reception-side coil that receives the power; and a change/short circuit which changes a resonant frequency of the power reception-side resonant circuit from a resonant frequency when the power is received or short-circuits the power reception-side coil before the reception of the power, \n the control circuit includes: a first processing portion which controls the power transmission circuit such that in a state where the power reception device changes the resonant frequency of the power reception-side resonant circuit or short-circuits the power reception-side coil according to a signal provided by communication from the power transmission device, a predetermined test magnetic field is generated in the power transmission-side coil before the transmission of the power; a second processing portion which determines, based on the amplitude detection value of the detection circuit when the test magnetic field is generated, whether or not the power transmission can be performed; and a third processing portion which realizes the power transmission by controlling the power transmission circuit such that after it is determined that the power transmission can be performed, a power transmission magnetic field larger than the test magnetic field is generated in the power transmission-side coil and \n the detection circuit detects, through processing which amplifies a signal indicating the amplitude of the current flowing through the power transmission-side coil, the amplitude, and an amplification factor in the amplification when the power transmission magnetic field is generated in the power transmission-side coil is smaller than an amplification factor in the amplification when the test magnetic field is generated in the power transmission-side coil.

Metadata:
- Claim Count in Document: 1.0
- Percentile: 86.0
- Lexical Diversity: 1.91667
- Patent Class: 320.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['15775643', '15768327', '15804611', '15546738', '14672553']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7808345589857172
- 35 USC 102 Novelty (BERT): 0.5353670733100584
- Combined Prediction Score: 0.7562878104181513
- Mean Citation Score: 297.8860600000001
- Max Citation Score: 393.74142
- Similarity Product: 287.19362233311296

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

Dataset: test