Patent ID: 11902778
Assignee: MILWAUKEE ELECTRIC TOOL CORPORATION
Field: Control (Instruments)
Classification: CPC G  H  B | IPC H

Claim 16:
17. A communication system comprising:
a power tool device including a first wireless transceiver;
an external device including a second wireless transceiver, wherein the external device includes a handheld portable device; and
a wireless fob including:
a third wireless transceiver,
a memory, and
an electronic processor coupled to the third wireless transceiver and to the memory, the electronic processor configured to:
establish, via the third wireless transceiver and the second wireless transceiver, a first communication link between the wireless fob and the external device, wherein the first communication link includes a first short-range communication link,
receive, over the first communication link, first identification information and credential information of the power tool device from the external device,
store the first identification information and the credential information in the memory,
receive, via the third wireless transceiver, an identification signal from the first wireless transceiver, the identification signal including second identification information,
identify the power tool device by determining that the first identification information matches with the second identification information,
transmit, via the third wireless transceiver, the credential information to the first wireless transceiver;
establish a second communication link between the wireless fob and the power tool device based on the credential information, wherein the second communication link includes a second short-range communication link,
transmit, over the second communication link, a command to the power tool device to control an operation of the power tool device,
receive, over the first communication link and from the external device, a credential expiration period that indicates a first amount of time, after receiving the credential information, during which the wireless fob has permission to use the credential information to establish the second communication link,
cease use of the credential information upon expiration of the first amount of time, and
receive, over the first communication link and from the external device, an unlock duration time that indicates a second amount of time during which the power tool device is configured to be enabled after receiving the command from the wireless fob, wherein the command includes an enable command that allows operation of a motor of the power tool device in response to a trigger of the power tool device being actuated.