PATENT CLAIM ANALYSIS

Application Number: 15881940
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2019-08
Patent Classification: ["323", "313000"]

Abstract:
A startup circuit for a voltage reference circuit is provided. The startup circuit includes first, second, and third transistors. The first transistor has a first current electrode coupled to the voltage reference circuit, a control electrode, and a second current electrode coupled to a ground terminal. The second transistor has a first current electrode and a control electrode both coupled to a power supply voltage terminal, and a second current electrode. The third transistor has a first current electrode coupled to the second current electrode of the second transistor and to the control electrode of the first transistor, a control electrode coupled to the voltage reference circuit, and a second current electrode coupled to the ground terminal. During application of a power supply voltage, the second transistor is off, thus providing only a leakage current to the gate of the first transistor. This provides for reliable startup with very low residual current after startup is complete.

Claim (Index 6):
The startup circuit of  claim 1 , wherein the voltage reference circuit comprises:\n a first P-channel transistor having a source coupled to the power supply voltage terminal, a gate coupled to the first current electrode of the first transistor, and a drain; a second P-channel transistor having a source coupled to the power supply voltage terminal, a gate and a drain both coupled to the gate of the first P-channel transistor; a first N-channel transistor having a drain and a gate both coupled to the drain of the first P-channel transistor, and a source coupled to the ground terminal; and a second N-channel transistor having a drain coupled to the drain of the second P-channel transistor, a gate coupled to the gate of the first N-channel transistor, and source coupled to the ground terminal.

Metadata:
- Claim Count in Document: 4.0
- Percentile: 86.0
- Lexical Diversity: 3.5102
- Patent Class: 323.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: False
- Related Applications: ['12407587', '11405912', '11677309', '15305041', '14020979']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7722210597189652
- 35 USC 102 Novelty (BERT): 0.48824164879784
- Combined Prediction Score: 0.7438231186268527
- Mean Citation Score: 260.360196
- Max Citation Score: 264.3031
- Similarity Product: 224.61056926862005

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