PATENT CLAIM ANALYSIS

Application Number: 16058628
Application Type: Utility
Filing Date: 2018-08
Publication Date: 2018-12
Patent Classification: ["307", "104000"]

Abstract:
The present power transmission device performs a power transmission process for transmitting power in a wireless manner through electromagnetic field resonance coupling using a resonance circuit. In a case where a resonance frequency of the resonance circuit set to be the same as a frequency of a power transmission signal which is output as transmission power is deviated during transmission of the power, the present power transmission device detects a direction in which the resonance frequency is deviated and controls the power transmission process on the basis of a detection result thereof. Consequently, it is possible to determine not only whether or not a foreign substance is present in a power transmission region but also determines whether or not the foreign substance influences wireless power transmission with high accuracy, and thus reliability of the wireless power transmission system can be improved.

Claim (Index 7):
The power transmission device according to  claim 1 , comprising:\n a power source unit that generates an AC signal corresponding to the transmission power; a primary side resonance circuit that includes a primary side resonance coil and a resonance capacitor as a power transmission antenna, and is supplied with power based on the AC signal generated by the power source unit; a resonance frequency adjustment unit that is provided between the power source unit and the primary side resonance circuit, and adjusts a resonance frequency of the primary side resonance circuit; a power amount detection unit that detects the magnitude of a reflected power amount of an AC signal which is supplied to the primary side resonance circuit from the power source unit; and a control unit, wherein the control unit changes the resonance frequency of the primary side resonance circuit by controlling the resonance frequency adjustment unit, and determines a direction in which the resonance frequency is deviated by determining a direction in which the reflected power amount detected by the power amount detection unit is changed.

Metadata:
- Claim Count in Document: 47.0
- Percentile: 96.0
- Lexical Diversity: 2.07042
- Patent Class: 307.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['14898830', '14313617', '15628772', '13504806', '15068049']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7762567136285968
- 35 USC 102 Novelty (BERT): 0.5815209400032616
- Combined Prediction Score: 0.7567831362660633
- Mean Citation Score: 279.031336
- Max Citation Score: 473.3562
- Similarity Product: 457.3625133436918

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

Dataset: test