Patent ID: 11928881
Assignee: JAPAN DISPLAY INC.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 7:
8. A detection system comprising:
a detection device configured to determine a touch detection duration in which a coordinate of a finger contacting or nearby a sensor unit is detected and a fingerprint detection duration in which a fingerprint of the finger is detected; and
a control circuit configured to perform processing in accordance with an output from the detection device, wherein
the detection device alternately determines the touch detection durations and the fingerprint detection durations, and
the control circuit
acquires a fingerprint image in each fingerprint detection duration,
calculates a difference value between the coordinates of the finger detected in the touch detection durations before and after the fingerprint detection duration in which the fingerprint image is acquired,
holds the acquired fingerprint image when the difference value is equal to or smaller than a predetermined value, and
discards the acquired fingerprint image when the difference value is larger than the predetermined value.