公开(公告)号：US20230379176A1

公开(公告)日：2023-11-23

申请号：US18030456

申请日：2021-08-24

Applicant: LG ELECTRONICS INC.

Inventor： Eujin HWANG ,  Sangduk YU ,  Sanghoon CHOI ,  Kwangchoong KIM ,  Sungwoon MOON ,  Sungwook HWANG

IPC: H04L9/32

CPC classification number: H04L9/3278

Abstract: A physically unclonable device according to an embodiment of the present disclosure comprises: a plurality of inverters disposed on a first path to which a first signal is input; a plurality of inverters disposed on a second path to which a second signal is input; a first MOS capacitor disposed on the first path; and a second MOS capacitor disposed on the second path, wherein a first voltage is applied to a MOS capacitor located on the path corresponding to whichever of the first signal or the second signal arrives later at an output terminal of the first path or an outer terminal of the second path. Accordingly, a physically unclonable device that does not require separate error correction can be achieved.

公开(公告)号：US20230370289A1

公开(公告)日：2023-11-16

申请号：US18030475

申请日：2021-08-24

Applicant: LG ELECTRONICS INC.

Inventor： Sungwoon MOON ,  Seungyup JANG ,  Sungwook HWANG

IPC: H04L9/32

CPC classification number: H04L9/3278

Abstract: A physical unclonable function device according to an embodiment of the present invention comprises: a bias circuit for outputting a first signal on the basis of a first operating power; a power source for outputting a second operating power on the basis of the first signal and the first operating power; and a plurality of inverters for performing an amplification operation on the basis of the second operating power from the power source. Accordingly, a physical unclonable function device which is robust to changes in operating power and reduces bit errors can be implemented.