PATENT CLAIM ANALYSIS

Application Number: 16021494
Application Type: Utility
Filing Date: 2018-06
Publication Date: 2018-10
Patent Classification: ["726", "032000"]

Abstract:
The inventive concept provides a security device capable of reducing an area of a die required for implementation of a stable PUF by increasing the value of entropy from a predefined number of entropy sources and/or minimizing a blind zone of a validity checking module. The security device uses an asynchronous configuration to minimize a blind zone. In various embodiments of the inventive concept, the blind zone is generated only in a period when a reset signal is at a first logic level. Therefore, it is possible to minimize the blind zone by minimizing a period in which the reset signal is at such logic level. A semiconductor device, semiconductor package, and/or smart card can be provided with such security device, as well as a method for determining a validity of a random signal using a semiconductor security device.

Claim (Index 1):
A security device, comprising:\n a first entropy source configured to generate a first analog random signal; a second entropy source configured to generate a second analog random signal; a first combination unit configured to receive the first analog random signal and the second analog random signal and to output the first analog random signal and the second analog random signal to at least two output nodes; a first digitizer configured to receive one of the first analog random signal and the second analog random signal through one of the at least two output nodes, and to generate a first digital random signal; a second digitizer configured to receive one of the first analog random signal and the second analog random signal through the other of the at least two output nodes, and to generate a second digital random signal; a validity detector configured to detect validity of the first digital random signal to generate a first validity signal and to detect validity of the second digital random signal to generate a second validity signal; and a finalizer configured to determine whether to exclude the first digital random signal and the second digital random signal based on the first validity signal and the second validity signal and to output a final digital random signal in accordance with a determination result, wherein the validity detector is configured to determine whether the first digital random signal is time-invariant to detect validity of the first digital random signal, and to determine whether the second digital random signal is time-invariant to detect validity of the second digital random signal.

Metadata:
- Claim Count in Document: 7.0
- Percentile: 94.0
- Lexical Diversity: 1.96053
- Patent Class: 726.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['14460982', '14184925', '09738719', '15006991', '14148384']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.2212366377386987
- 35 USC 102 Novelty (BERT): 0.564295128444043
- Combined Prediction Score: 0.2555424868092332
- Mean Citation Score: 216.85462400000003
- Max Citation Score: 430.05136
- Similarity Product: 391.0157748265744

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