PATENT CLAIM ANALYSIS

Application Number: 15891221
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2019-08
Patent Classification: ["330", "261000"]

Abstract:
A bias current generator is disclosed that include an operational amplifier that is self-biased during an inactive period with a bias current to bias a gate of an output transistor. Since the inactive period bias is close to an active period bias applied to the gate of the output transistor during active operation of the bias current generator, the speed of transition from the inactive period to the active period is enhanced by the self-biasing of the operational amplifier.

Claim (Index 12):
A method of operation for an operational amplifier including a first differential pair transistor having a gate connected to a terminal of an output resistor and having a second differential pair transistor having a gate connected to a voltage source providing a reference voltage and having a terminal connected to a gate of an output transistor having a terminal coupled to ground through a first switch and the output resistor, comprising:\n during an inactive period for the operational amplifier:\n opening the first switch to prevent the output transistor from conducting; and \n closing a second switch to charge the gate of the first differential pair transistor to a power supply voltage while conducting a node-biasing current through a channel of the first differential pair transistor and through a body diode of the second differential pair transistor in the operational amplifier to bias the gate of the output transistor with the node-biasing current; \n during an active period for an operational amplifier:\n closing the first switch and opening the second switch so that feedback through the operational amplifier causes the output transistor to conduct a bias current through the output resistor equaling a ratio of the reference voltage and a resistance for the output resistor, wherein the bias current is greater than the node-biasing current; and \n mirroring the bias current into at least one secondary current.

Metadata:
- Claim Count in Document: 12.0
- Percentile: 88.0
- Lexical Diversity: 2.27778
- Patent Class: 330.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['12807365', '12117180', '11029282', '13434321', '15785294']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7793206996813525
- 35 USC 102 Novelty (BERT): 0.4979982905157724
- Combined Prediction Score: 0.7511884587647945
- Mean Citation Score: 208.288704
- Max Citation Score: 213.02823
- Similarity Product: 140.68034561905503

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