PATENT CLAIM ANALYSIS

Application Number: 16026040
Application Type: Utility
Filing Date: 2018-07
Publication Date: 2018-11
Patent Classification: ["370", "242000"]

Abstract:
An abnormality detection method is provided. The abnormality detection method is for detecting an abnormality that may be transmitted to a bus in an on-board network system. The on-board network system includes a plurality of electronic controllers that transmit and receive messages via the bus in a vehicle according to a CAN protocol. In the abnormality detection method, for example, a gateway transmits vehicle identification information to a server and receives a response determining a unit time. An operation process is performed using feature information based on a number of messages received from the bus per the determined unit time and using a model indicating a criterion in terms of a message occurrence frequency. A judgment is made as to an abnormality according to a result of the operation process.

Claim (Index 15):
An abnormality detection system, comprising:\n one vehicle; and a server, wherein the one vehicle includes an on-board network system and an abnormality detection apparatus, the on-board network system including a plurality of electronic controllers that transmit and receive messages via a bus in the vehicle according to a Controller Area Network protocol, the abnormality detection apparatus being connected to the bus, the abnormality detection apparatus includes:\n first processing circuitry; and \n a first storage including at least one set of instructions that, when executed by the first processing circuitry, causes the first processing circuitry to perform first operations including:\n receiving a message from the bus; \n transmitting vehicle identification information for identifying the one vehicle to the server and determining a unit time based on a response returned from the server; \n identifying feature information based on a number of messages received per the determined unit time; and \n judging whether the received message is abnormal or not according to a result of an operation process performed using the identified feature information and a model indicating a criterion in terms of a message occurrence frequency, and \n \n the server includes:\n second processing circuitry; and \n a second storage including at least one set of instructions that, when executed by the second processing circuitry, causes the second processing circuitry to perform second operations including:\n receiving the vehicle identification information from the one vehicle; and \n transmitting, to the one vehicle, information indicating the unit time identified based on the vehicle identification information.

Metadata:
- Claim Count in Document: 17.0
- Percentile: 95.0
- Lexical Diversity: 1.86486
- Patent Class: 370.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15381498', '15285706', '15940200', '15398815', '15183443']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.544184733569454
- 35 USC 102 Novelty (BERT): 0.4874611897931244
- Combined Prediction Score: 0.538512379191821
- Mean Citation Score: 210.56376
- Max Citation Score: 223.24266
- Similarity Product: 163.5050399069023

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

Dataset: test