Patent ID: 11882637
Assignee: SENSORTEK TECHNOLOGY CORP.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC G  H | IPC H

Claim 7:
8. An operation method of proximity sensor, comprising steps of:
a processing circuit controlling a light-emitting device to emit light using a plurality sets of light-source turn-on operations and light-source turn-off operations;
an optical sensor receiving said light and outputting a sensing signal corresponding to the intensity of said light; and
said processing circuit operating said sensing signal for producing a sensing result;
wherein said plurality sets of light-source turn-on operations and light-source turn-off operations include a group; said group includes a first light-source turn-on operation, a first light-source turn-off operation, a second light-source turn-on operation, and a second light-source turn-off operation; said group is performed in the order of said first light-source turn-on operation, said first light-source turn-off operation, said second light-source turn-off operation, and said second light-source turn-on operation; and said first light-source turn-off operation and said second light-source turn-off operation are performed successively.