PATENT CLAIM ANALYSIS

Application Number: 16243455
Application Type: Utility
Filing Date: 2019-01
Publication Date: 2019-07
Patent Classification: ["327", "538000"]

Abstract:
An oscillator circuit including a ring oscillator and a reference current source is provided. The ring oscillator includes an odd number of inverter stages. Each inverter stage includes a first transistor having a first reference threshold that varies over temperature. The reference current source is configured to generate a plurality of currents, where a respective current is applied directly to the drain of a respective first transistor of a respective inverter stage. The reference current source includes a reference transistor that has a second reference threshold that varies over temperature; a resistor coupled between a gate and a source of the reference transistor; a second transistor having a source coupled to the gate of the reference transistor for generating a reference current that flows through the resistor to regulate a voltage of the resistor to the second threshold voltage; and a current mirror configured to generate the plurality of currents.

Claim (Index 12):
An integrated circuit, comprising:\n a ring oscillator including a plurality of inverter stages, the plurality of inverter stages comprising a first inverter stage, a last inverter stage, and an intermediate inverter stage, wherein each inverter stage of the plurality of inverter stages includes:\n a first transistor having a first reference threshold that varies over temperature; and \n a capacitor coupled to the first transistor, the intermediate inverter stage being coupled between the first inverter stage and the last inverter stage, and an input terminal of the first inverter stage being coupled to an output terminal of the last inverter stage; and \n a reference current source coupled to the first transistors of the plurality of inverter stages, the reference current source including:\n a resistor; \n a reference transistor having a second reference threshold that varies over temperature; \n a bias device; \n a second transistor operative to regulate a voltage of the resistor to the second threshold voltage; and \n a first current mirror coupled to the second transistor and configured to generate a plurality of currents for the plurality of inverter stages, respectively, by mirroring the reference current.

Metadata:
- Claim Count in Document: 4.0
- Percentile: 99.0
- Lexical Diversity: 2.78947
- Patent Class: 327.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['11093619', '12653004', '13410104', '12360416', '12385353']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7482702638501472
- 35 USC 102 Novelty (BERT): 0.5003018386317585
- Combined Prediction Score: 0.7234734213283083
- Mean Citation Score: 248.773162
- Max Citation Score: 265.75366
- Similarity Product: 207.9320820391381

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