PATENT CLAIM ANALYSIS

Application Number: 15940200
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2018-08
Patent Classification: ["726", "023000"]

Abstract:
A security apparatus is provided that is connected to a bus. The security apparatus includes a receiver that receives a first frame from the bus, a memory that stores an examination parameter defining a content of an examination on the first frame, and processing circuitry that performs operations. The performed operations include first determining whether a predetermined condition is satisfied for the first frame. The performed operations also include, in a case where the first determining determined that the predetermined condition is satisfied, updating the examination parameter stored in the memory. The performed operations further include second determining whether the first frame is an attack frame based on the updated examination parameter stored in the memory.

Claim (Index 8):
The security apparatus according to  claim 7 , wherein\n the security apparatus is installed in a vehicle, the vehicle includes a plurality of electronic controllers that transmit and receive frames via the one or the plurality of buses according to a Controller Area Network (CAN) protocol, the frame is a data frame including an ID field storing an ID, Data Length Code (DLC), and a data field, the examination parameter stored in the memory is a frequency-of-transmission examination parameter associated with an examination as to how often one or more frames whose ID values are identical are transmitted within a predetermined unit time, and the frequency-of-transmission examination parameter includes a threshold value indicating an upper limit of an allowable range of the frequency of transmission, the checker performs the determination such that the checker detects a transmission period indicating a time interval between transmission of two frames whose ID values are identical, and, in a case where a reception interval between two frames whose ID values are identical is out of a predetermined allowable range, the checker determines that the conditions is satisfied, in the updating of the examination parameter by the updater, the updater updates the threshold value included in the frequency-of-transmission examination parameter stored in the memory, and in the examination by the examiner, in a case where the frequency of transmission of the frame received by the receiver is higher than the threshold value included in the frequency-of-transmission examination parameter, the examiner determines that the frame received by the receiver is an attack frame.

Metadata:
- Claim Count in Document: 20.0
- Percentile: 90.0
- Lexical Diversity: 2.31481
- Patent Class: 726.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['15879962', '15936511', '15209882', '15275860', '15881826']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.2947230592508427
- 35 USC 102 Novelty (BERT): 0.4837909092195396
- Combined Prediction Score: 0.3136298442477124
- Mean Citation Score: 162.607076
- Max Citation Score: 190.95866
- Similarity Product: 139.05122822088362

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