PATENT CLAIM ANALYSIS

Application Number: 15990266
Application Type: Utility
Filing Date: 2018-05
Publication Date: 2018-09
Patent Classification: ["320", "107000"]

Abstract:
A charging circuit and a mobile terminal are provided. The charging circuit is coupled between a charging interface and a battery. The charging circuit includes a first circuit, a magnetic coupling element, and a second circuit connected in series between the charging interface and the battery. The first circuit is configured to receive a first current from the charging interface and convert the first current to a second current with magnitude and/or direction changed. The charging interface is a universal serial bus interface and the first current is a direct current. The magnetic coupling element includes a first coil and a second coil, the first coil is connected with the first circuit, the second coil is connected with the second circuit, and the first coil and the second coil are separated from each other to disconnect a direct current path of the charging circuit when the first circuit fails.

Claim (Index 4):
A mobile terminal, comprising a charging interface, a battery, and a charging circuit, wherein the charging circuit is coupled between the charging interface and the battery of the mobile terminal and the charging circuit comprises a first circuit, a magnetic coupling element, and a second circuit connected in series between the charging interface and the battery, wherein\n the first circuit is configured to receive a first current from the charging interface and convert the first current to a second current with magnitude and/or direction changed; wherein the charging interface is a universal serial bus (USB) interface and the first current is a direct current (DC); the magnetic coupling element comprises a first coil and a second coil, the first coil is connected with the first circuit, the second coil is connected with the second circuit, and the first coil and the second coil are separated from each other to disconnect a direct current path of the charging circuit when the first circuit fails; wherein the magnetic coupling element is configured to transfer energy from the first coil to the second coil in an electromagnetic induction manner by utilizing the second current with magnitude and/or direction changed when the first circuit outputs the second current, to generate a third current at the second coil; the second circuit is configured to adjust the third current to a fourth current suitable for battery charging to charge the battery; and the first circuit comprises a half-bridge circuit and a control circuit controlling the half-bridge circuit, and the half-bridge circuit comprises a first switch transistor and a second switch transistor; wherein the first switch transistor has a first end configured to be connected with the charging interface, a second end connected with a first end of the first coil, and a control end connected with the control circuit; wherein the second switch transistor has a first end connected with the second end of the first switch transistor, a second end configured to be grounded, and a control end connected with the control circuit; wherein the first coil has a second end configured to be grounded; or the first circuit comprises a full-bridge circuit and a control circuit controlling the full-bridge circuit, and the full-bridge circuit comprises a first switch transistor, a second switch transistor, a third switch transistor, and a fourth switch transistor; wherein the first switch transistor has a first end configured to be connected with the charging interface, a second end connected with a second end of the first coil, and a control end connected with the control circuit; wherein the second switch transistor has a first end connected with the second end of the first switch transistor, a second end configured to be grounded, and a control end connected with the control circuit; wherein the third switch transistor has a first end configured to be connected with the charging interface, a second end connected with a first end of the first coil, and a control end connected with the control circuit; wherein the fourth switch transistor has a first end connected with the second end of the third switch transistor, a second end configured to be grounded, and a control end connected with the control circuit; or the first circuit comprises a switch transistor and a control circuit controlling the switch transistor; wherein the switch transistor has a first end configured to be connected with the charging interface, a second end connected with a first end of the first coil, and a control end connected with the control circuit; wherein the first coil has a second end configured to be grounded.

Metadata:
- Claim Count in Document: 5.0
- Percentile: 93.0
- Lexical Diversity: 3.13725
- Patent Class: 320.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15306093', '14419111', '15325600', '15132471', '13807007']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7523140069386894
- 35 USC 102 Novelty (BERT): 0.4650725431998537
- Combined Prediction Score: 0.7235898605648059
- Mean Citation Score: 205.83197
- Max Citation Score: 215.56673
- Similarity Product: 186.4057336619652

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