PATENT CLAIM ANALYSIS

Application Number: 15862466
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2018-05
Patent Classification: ["351", "159030"]

Abstract:
A lens driver or lens driver circuitry for an ophthalmic apparatus comprising an electronic system which actuates a variable-focus optic is disclosed herein. The lens driver is part of an electronic system incorporated into the ophthalmic apparatus. The electronic system includes one or more batteries or other power sources, power management circuitry, one or more sensors, clock generation circuitry, control algorithms and circuitry, and lens driver circuitry. The lens driver circuitry includes one or more power sources, one or more high voltage generators and one or more switching circuits. Specifically, the lens driver comprises an H-bridge/H-bridge controller for providing the proper voltage, including polarity, to drive the electronic included in the ophthalmic apparatus.

Claim (Index 1):
An electronic system comprising:\n a power source; an H-bridge circuit configured to control a voltage supplied to the optic element, to reverse the polarity of a voltage supplied to the optic element and to short the optic element, the H-bridge circuit including first and second lower switches implemented as N-channel MOSFET transistors, and first and second upper P-channel MOSFET switches; an H-bridge control circuit used to control the first and second upper P-channel MOSFET switches using level shifter cells and configured to be a high impedance circuit thereby preventing a loading of the power source, the level shifter cells comprising buffers, a capacitor coupling circuit, and a charge pump cell, wherein the capacitors level shift between a low voltage and a high voltage and transfer the charge to the charge pump cell, the charge pump cell provides an activation voltage for the first and second upper P-channel MOSFET switches, and an active turn-off circuit comprising control switches designed to deactivate the first and second upper P-channel MOSFET switches as necessary by activating an additional level shifter circuit to activate the control switches, and a cross-coupled switch circuit between the outputs of the two level shifter cells thereby ensuring only one of the first and second upper P-channel MOSFET switches is on at a time; and a system controller configured to provide control and timing signals for the electronic system, wherein the power source provides a voltage to sources of the first and second upper P-channel MOSFET transistor and to the H-Bridge control circuit.

Metadata:
- Claim Count in Document: 1.0
- Percentile: 86.0
- Lexical Diversity: 2.15254
- Patent Class: 351.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['14977736', '13798295', '13780707', '13780014', '14527882']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.5627605208344724
- 35 USC 102 Novelty (BERT): 0.5226121026290172
- Combined Prediction Score: 0.5587456790139269
- Mean Citation Score: 219.95448800000003
- Max Citation Score: 371.8324
- Similarity Product: 294.9466632567168

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

Dataset: test