PATENT CLAIM ANALYSIS

Application Number: 16025962
Application Type: Utility
Filing Date: 2018-07
Publication Date: 2018-11
Patent Classification: ["320", "108000"]

Abstract:
Methods and systems are described for using detection coils to detect metallic or conductive foreign objects that can interfere with the wireless transfer of power from a power transmitter to a power receiver. In particular, the detection coils are targeted to foreign objects that are smaller than a power transmitter coil in the power transmitter.

Claim (Index 20):
A method for wireless power charging by inductive coupling between a power transmitter coil in a transmitter device and a power receiver coil in a separate receiver device, the method comprising:\n pre-charging a receiver circuit that includes the power receiver coil; executing a foreign object detection (FOD) process that detects foreign object presence based on a behavior of a resonant circuit containing a FOD coil, the FOD process comprising:\n charging the resonant circuit; and \n detecting foreign object presence based on a decay in a response of the resonant circuit after the resonant circuit has been charged, wherein foreign object presence affects said decay via interaction of the foreign object with the FOD coil; and wherein said decay is also affected by the receiver circuit via interaction of the power receiver coil with the FOD coil and pre-charging the receiver circuit reduces reduces the effect of the receiver circuit on said decay; and \n upon a lack of detection of foreign object presence, wirelessly power charging the receiver device by inductive coupling between the power transmitter coil and the power receiver coil.

Metadata:
- Claim Count in Document: 1.0
- Percentile: 95.0
- Lexical Diversity: 1.52632
- Patent Class: 320.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15798202', '14869597', '13628348', '15602565', '15264908']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7798865520752452
- 35 USC 102 Novelty (BERT): 0.5403439887963715
- Combined Prediction Score: 0.7559322957473578
- Mean Citation Score: 347.139984
- Max Citation Score: 412.24072
- Similarity Product: 338.3931576450538

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

Dataset: test