Patent ID: 11909748
Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 4:
5. The anti-fraud control system according to claim 2, wherein
each of the one or more second error monitoring devices further includes an error state holder that holds at least one of a total number of error detections or a total number of receptions of an error notification frame for each frame type,
in the first error monitoring device,
the first hardware error detector further monitors whether an error occurs in the error notification frame transmitted by the first frame transmitting and receiving hardware unit, and causes the first frame transmitting and receiving hardware unit to transmit an anomaly notification frame for notifying of an occurrence of an anomaly in transmitting and receiving the error notification frame when detecting the occurrence of the error in the error notification frame, and

in each of the one or more second error monitoring devices,
when the second frame transmitting and receiving hardware unit has received the anomaly notification frame, the second hardware error detector regards, as the frame to be invalidated, a frame whose number of error detections or whose number of receptions held in the error state holder is greater than or equal to a predetermined number, and shifts the second error monitoring device to the invalidation mode.