PATENT CLAIM ANALYSIS

Application Number: 15747833
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2018-08
Patent Classification: ["726", "006000"]

Abstract:
A communication apparatus includes a counter, a reception portion, an update portion, a code generation portion, a determination portion, and a transmission portion. The reception portion receives a communication data from a different one of the communication apparatus. The update portion updates a value of the counter. The code generation portion generates a message authentication code based on the communication data received by the reception portion, the value of the counter, and a common key. The determination portion determines whether the message authentication code generated by the code generation portion matches a message authentication code set in the communication data. The transmission portion transmits a synchronization request when a number of times that the determination portion determines a mismatch between the message authentication codes becomes equal to or more than a predetermined number of mismatches.

Claim (Index 5):
The communication apparatus according to  claim 1 , wherein\n the transmission portion transmits a reset and update request, which requests a reset of the value of the counter and an update of the common key, when a number of times that the determination portion determines a mismatch between the message authentication code generated by the code generation portion and the message authentication code set in the communication data received by the reception portion becomes equal to or more than a predetermined number of synchronizations after the transmission portion has transmitted the synchronization request.

Metadata:
- Claim Count in Document: 1.0
- Percentile: 86.0
- Lexical Diversity: 2.46667
- Patent Class: 726.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['15183443', '15636007', '15315084', '15868663', '14965683']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.2861318045892647
- 35 USC 102 Novelty (BERT): 0.4872855842520932
- Combined Prediction Score: 0.3062471825555475
- Mean Citation Score: 177.07767399999997
- Max Citation Score: 190.59666
- Similarity Product: 130.8001220364797

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

Dataset: test