公开(公告)号：US20210311603A1

公开(公告)日：2021-10-07

申请号：US17290954

申请日：2019-10-31

Applicant: SMART TECHNOLOGIES ULC

Inventor： Rola Baki ,  Trevor Wellington ,  Colin Gowen

IPC: G06F3/041 ,  G06F3/046 ,  G06F3/0354

Abstract: An interactive input system, a tool and a method for detecting the tool's identity in the interactive input system are provided, in which a touch location of the tool is detected. The system comprises a plurality of antennas. A set of selected antennas associated with the touch location are activated to generate electromagnetic field, thereby activating the tool to send out a unique identifier associated with an attribute of the pen tool. The unique identifier is received and detected by the interactive input system to determine the attribute of the pen tool. The pen tool comprise at least one coil, and at least one NFC transponder, wherein the at least one coil is activated by electromagnetic field to power the NFC transponder for transmitting the unique identifier.

公开(公告)号：US11188173B2

公开(公告)日：2021-11-30

申请号：US17290954

申请日：2019-10-31

Applicant: SMART TECHNOLOGIES ULC

Inventor： Rola Baki ,  Trevor Wellington ,  Colin Gowen

IPC: G06F3/041 ,  G06F3/0354 ,  G06F3/046

Abstract: An interactive input system, a tool and a method for detecting the tool's identity in the interactive input system are provided, in which a touch location of the tool is detected. The system comprises a plurality of antennas. A set of selected antennas associated with the touch location are activated to generate electromagnetic field, thereby activating the tool to send out a unique identifier associated with an attribute of the pen tool. The unique identifier is received and detected by the interactive input system to determine the attribute of the pen tool. The pen tool comprise at least one coil, and at least one NFC transponder, wherein the at least one coil is activated by electromagnetic field to power the NFC transponder for transmitting the unique identifier.