公开(公告)号：US12260188B2

公开(公告)日：2025-03-25

申请号：US17254254

申请日：2020-11-30

Applicant: KOREA ELECTRONICS TECHNOLOGY INSTITUTE

Inventor： Dong Yeob Shin ,  Tae Beom Lim ,  Yong Seok Lim

IPC: G06F7/544 ,  G06F1/03

Abstract: The present invention relates to a pop count-based deep learning neural network computation method, a multiply accumulator, and a device thereof. The computation method according to an exemplary embodiment of the present invention is a computation method for a deep learning neural network, including a step of generating one-hot encoding codes according to the type of first multiplication result values for a multiplication (first multiplication) of weights (W) and input values (A); a step of performing a pop-count for each generated code; and a step of accumulating result values for a constant multiplication (second multiplication) between each type of the first multiplication result value and each count value of the pop-count which are different constant values.

公开(公告)号：US12199450B2

公开(公告)日：2025-01-14

申请号：US18058688

申请日：2022-11-23

Applicant: KOREA ELECTRONICS TECHNOLOGY INSTITUTE

Inventor： Yong Ju Park ,  Yong Seok Lim ,  Yong Seong Kim ,  Hae Yong Jung ,  Hye Jung Kim

IPC: G01C3/08 ,  G01V8/18 ,  H02J50/12 ,  H02J50/60

Abstract: A system for foreign object detection (FOD) in wireless power transfer is proposed. The system may include a balanced coil which is disposed between a transmitter coil and a receiver coil and which includes a Maxwell bridge circuit. The system may also include a temperature sensor configured to measure a temperature of the transmitter coil. The system may further include a processor configured to determine whether an FO is present between the transmitter coil and the receiver coil on the basis of voltage values detected at both ends of the bridge circuit. The FOD system can recognize the FO by finding a maximum resonant frequency at which a metal reacts using resonant frequency sweeping in a bridge circuit.

公开(公告)号：US20230387725A1

公开(公告)日：2023-11-30

申请号：US18058688

申请日：2022-11-23

Applicant: KOREA ELECTRONICS TECHNOLOGY INSTITUTE

Inventor： Yong Ju Park ,  Yong Seok Lim ,  Yong Seong Kim ,  Hae Yong Jung ,  Hye Jung Kim

IPC: H02J50/60 ,  H02J50/12 ,  G01V8/18

CPC classification number: H02J50/60 ,  H02J50/12 ,  G01V8/18

Abstract: A system for foreign object detection (FOD) in wireless power transfer is proposed. The system may include a balanced coil which is disposed between a transmitter coil and a receiver coil and which includes a Maxwell bridge circuit. The system may also include a temperature sensor configured to measure a temperature of the transmitter coil. The system may further include a processor configured to determine whether an FO is present between the transmitter coil and the receiver coil on the basis of voltage values detected at both ends of the bridge circuit. The FOD system can recognize the FO by finding a maximum resonant frequency at which a metal reacts using resonant frequency sweeping in a bridge circuit.

公开(公告)号：US12022444B2

公开(公告)日：2024-06-25

申请号：US17468563

申请日：2021-09-07

Applicant: Korea Electronics Technology Institute

Inventor： Yong Ju Park ,  Yong Seok Lim

IPC: H04W72/0446 ,  H02J50/20 ,  H02J50/40 ,  H02J50/80 ,  H02J50/90 ,  H04B7/06 ,  H04W74/04

CPC classification number: H04W72/0446 ,  H02J50/20 ,  H02J50/40 ,  H02J50/80 ,  H02J50/90 ,  H04B7/0617 ,  H04W74/04

Abstract: Provided is a power transmission and reception system and a power transmission and reception system method capable of simultaneously transmitting/receiving data and power and including an array antenna including a plurality of antennas, a radio frequency (RF) unit and a baseband unit provided for data transmission and reception, a slot allocation unit configured to allocate a channel for power transfer and a slot for data transmission in a Contention Access Period (CAP) section, and allocate a slot for power transfer in consideration of whether to perform cooperative charging with a nearby another Simultaneous Wireless Information and Power Transfer (SWIPT) power transfer system, and a power supply and beamforming control unit configured to adjust the array antenna such that a power signal to be transmitted is beamformed according to a positioning beacon from a power receiving unit (PRU).

公开(公告)号：US20230206052A1

公开(公告)日：2023-06-29

申请号：US18146727

申请日：2022-12-27

Applicant: KOREA ELECTRONICS TECHNOLOGY INSTITUTE

Inventor： Dongyeob Shin ,  Yong Seok Lim

IPC: G06N3/063 ,  G06F7/544

CPC classification number: G06N3/063 ,  G06F7/5443

Abstract: Provided are a systolic array structure and a device including the same. The systolic array structure includes a processing element (PE) array in which a plurality of PEs are connected. The systolic array structure performs a multiply and accumulate (MAC) operation by applying differential values as first and second inputs which are input to each of the PEs.

公开(公告)号：US11264843B1

公开(公告)日：2022-03-01

申请号：US17127419

申请日：2020-12-18

Applicant: KOREA ELECTRONICS TECHNOLOGY INSTITUTE

Inventor： Yong Seok Lim ,  Hae Yong Jung ,  Tai Gil Kwon ,  Yong Seong Kim ,  Yongju Park

IPC: H02J50/60 ,  H02J50/12 ,  H02J50/40 ,  B60L53/55 ,  B60L53/30 ,  B60L53/124

Abstract: The present invention provides a system tar wireless power transmission, wherein the system is a system for wireless power transmission detecting a foreign object, including a power transmitting coil for transmitting AC power, a power receiving coil for receiving the AC power transmitted from the power transmitting coil wherein the power receiving coil is spaced apart from the power transmitting coil, and a detection circuit for detecting a foreign object located between the power transmitting coil and the power receiving coil wherein a first resistor and a first detection coil connected in series, and a second resistor and a second detection coil connected in series are connected in parallel, and wherein at least one of the first detection coil and the second detection coil is disposed between the power transmitting coil and the power receiving coil.