Patent ID: 11899918
Assignee: ANHUI HONGCHENG OPTO-ELECTRONICS CO., LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 13:
14. The method according to claim 13, wherein the preset pattern further comprises a third preset pattern, and after judging whether the lengths of all the key line segments are approximately equal within the preset error range, the method further comprises:
further judging whether at least one of the key angles is within a preset straight angle threshold range under a condition that the lengths of all the key line segments are not approximately equal within the preset error range;
judging whether the distance between the first key point and the fifth key point is greater than the preset distance threshold under a condition that at least one of the key angles is within the preset straight angle threshold range; and
determining that the sliding track satisfies a recognition condition of the third preset pattern under a condition that the distance between the first key point and the fifth key point is not greater than the preset distance threshold.