PATENT CLAIM ANALYSIS

Application Number: 15871306
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2018-11
Patent Classification: ["326", "008000"]

Abstract:
A physical unclonable function (PUF) circuit and a PUF system including the same are provided. The PUF circuit includes a plurality of PUF cells each configured to generate an output voltage by dividing a power voltage, a reference voltage generator configured to generate a first reference voltage by dividing the power voltage, and a comparing unit configured to sequentially compare the output voltages of the plurality of PUF cells with the first reference voltage to output data values of the plurality of PUF cells.

Claim (Index 18):
An integrated circuit having a physical unclonable function (PUF), the integrated circuit comprising:\n a plurality of PUF cells configured to generate output voltages, each of the output voltages being generated by dividing a power voltage based on at least two resistors; a reference voltage generator configured to generate a first reference voltage, a second reference voltage and a third reference voltage by dividing the power voltage based on a resistor string, the second reference voltage being higher than the first reference voltage, the third reference voltage being lower than the second reference voltage; a comparison circuit configured to compare the output voltages of the plurality of PUF cells with each of the first reference voltage, the second reference voltage and the third reference voltage, and to output comparison results; and a combinational logic configured to generate validity data indicating validity of each of the plurality of PUF cells based on the comparison results.

Metadata:
- Claim Count in Document: 5.0
- Percentile: 86.0
- Lexical Diversity: 2.04545
- Patent Class: 326.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15598293', '13743239', '15128693', '15817870', '13566805']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6577604138177283
- 35 USC 102 Novelty (BERT): 0.4689803263773897
- Combined Prediction Score: 0.6388824050736944
- Mean Citation Score: 197.426492
- Max Citation Score: 198.77953
- Similarity Product: 157.17624578532934

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

Dataset: test