PATENT CLAIM ANALYSIS

Application Number: 16026180
Application Type: Utility
Filing Date: 2018-07
Publication Date: 2020-01
Patent Classification: ["330", "251000"]

Abstract:
A switching amplifier circuit ( 200 ) connected to drive an impedance-based output load ( 230 ) includes high side and low side switches ( 201 - 204 ) configured and connected to connect first and second supply voltage lines to first and second output nodes (ANTP, ANTN) in response to gating control signals, and also includes an output current sensing circuit for measuring a current through the output load with a current sensing resistor (Rs) connected between the second supply voltage line and a source of one or more split gate-source switching transistors ( 203 C) in the low side gate-source switching transistor, where a voltage sense circuit connected across the current sensing resistor is configured to sample a voltage across the current sensing resistor for measuring a sense current at the current sensing resistor.

Claim (Index 1):
A switching amplifier circuit comprising:\n an output driving circuit comprising a high side switching transistor and low side split gate-source switching transistor connected in series between first and second supply voltage lines; a switch driver circuit configured to drive the switching transistors with first and second respective control signals; an output connection between the switching transistors for driving an output load; and an output current sensing circuit for measuring a current through the output load with a current sensing resistor connected between the second supply voltage line and a source of one or more split gate-source switching transistors in the low side split gate-source switching transistor, wherein the one or more low side split gate-source switching transistors comprises a current sense transistor having a drain node directly connected to the output connection, a source node connected to the current sensing resistor, and a gate node, the gate node of the current sense transistor connected by a connection switch to a shared gate control signal in a first connection state and to the source node of the current sense transistor in a second connection state so that less current is provided to the current sensing resistor in the second state than in the first state.

Metadata:
- Claim Count in Document: 45.0
- Percentile: 95.0
- Lexical Diversity: 2.04225
- Patent Class: 330.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15213217', '11560783', '15117512', '14542806', '15712770']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7684758544068755
- 35 USC 102 Novelty (BERT): 0.4600573960915969
- Combined Prediction Score: 0.7376340085753477
- Mean Citation Score: 169.548544
- Max Citation Score: 182.02832
- Similarity Product: 159.0325705526352

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