Patent ID: 6903651

Claim:
A method used in an electronic lock system which comprises a locked object and a plurality of electronic lock devices, the locked object having a memory storing a first identification code and a second identification code and means for wirelessly transmitting and receiving the identification codes, and each electronic lock device having means for wirelessly transmitting and receiving the identification codes, the method performing an unlock operation on the locked object to be unlocked by using the identification codes, and comprising the steps of: (a) when receiving the first identification code transmitted from the locked object in a starting one of the plurality of electronic lock devices, transmitting an identification code different from the received first identification code, from the starting electronic lock device to another electronic lock device, (b) when receiving the identification code transmitted from the starting electronic lock device in said another electronic lock device, transmitting an identification code different from the received identification code, from said another electronic lock device to another further electronic lock device, wherein the step (b) is repeated in a link manner from the starting electronic lock device to an ending electronic lock device through intermediate electronic lock devices, and (c) when receiving an identification code transmitted from the ending electronic lock device in the locked object and the received identification code is identical with the second identification code, unlocking the locked object.