PATENT CLAIM ANALYSIS

Application Number: 16023626
Application Type: Utility
Filing Date: 2018-06
Publication Date: 2018-11
Patent Classification: ["380", "044000"]

Abstract:
A key enrollment method of a physically unclonable function (PUF) circuit including a plurality of PUF cells includes receiving a first level key from PUF cells, performing bit encoding on the first level key using a bit coding table based on Hamming weights of a plurality of bits in the first level key to generate a second level key, storing first helper data associated with the second level key in a non-volatile memory, performing block encoding on the second level key using an error correction code to generate a third level key, and storing second helper data associated with the third level key in the non-volatile memory.

Claim (Index 12):
A method of generating a secure key for an electronic device including a nonvolatile memory, the method comprising:\n generating a plurality of first key values, each of the plurality of first key values including a plurality of first bits; reading a plurality of first helper data values stored in the nonvolatile memory, each of the plurality of first helper data values corresponding to the each of the plurality of first key values; performing bit error correction operation on the each of the plurality of first key values using the plurality of first helper data values to generate a plurality of second key values; reading second helper data stored in the nonvolatile memory; performing block error correction operation on the plurality of second key values using the second helper data to correction an error in the plurality of second key values; and outputting the plurality of second key values in which the error is corrected as the secure key.

Metadata:
- Claim Count in Document: 50.0
- Percentile: 94.0
- Lexical Diversity: 2.15094
- Patent Class: 380.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['14553734', '14426728', '13254356', '12443736', '14699354']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.4089806990638768
- 35 USC 102 Novelty (BERT): 0.4742816302379833
- Combined Prediction Score: 0.4155107921812875
- Mean Citation Score: 197.249056
- Max Citation Score: 205.81284
- Similarity Product: 160.2756578419876

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

Dataset: test