US Patent No. 10,338,741

FAILURE DETECTION DEVICE AND FAILURE DETECTION METHOD FOR INPUT INTERFACE DEVICE


Patent No. 10,338,741
Issue Date July 02, 2019
Title Failure Detection Device And Failure Detection Method For Input Interface Device
Inventorship Hiroyuki Morimoto, Osaka (JP)
Assignee PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD., Osaka (JP)

Claim of US Patent No. 10,338,741

1. A failure detection method for detecting failures of a plurality of input interface devices each having a touch screen that detects and outputs input operations, the failure detection method comprising:acquiring and accumulating pieces of position information from each of the plurality of input interface devices, which indicate positions on the touch screen at which touch operations are performed;
counting a number of determinations that a first position indicated by the pieces of position information for an image on the touch screen output from a first interface device among the plurality of input interface devices is different from a second position indicated by the pieces position information for the image on the touch screen output from remaining input interface devices among the plurality of other input interfaces devices; and
determining that the first input interface device is in the abnormal state, as a result of determining that the number is a threshold value or more.