公开(公告)号：US11817798B2

公开(公告)日：2023-11-14

申请号：US17456833

申请日：2021-11-29

Applicant: KOREA ELECTRONICS TECHNOLOGY INSTITUTE

Inventor： Hyun Moon Park ,  Byung Soo Kim ,  Tae Ho Hwang

IPC: H02N1/04

CPC classification number: H02N1/04

Abstract: This application relates to a frictional electricity generator increasing output transfer efficiency. In one aspect, the frictional electricity generator includes a housing and a power generation element which is arranged in the housing and in which a + position pole and a − position pole are arranged according to the movement of a positive charge and a negative charge by friction. The + position pole and the − position pole of the power generation element may be arranged at a distance of a predetermined angle on a plane so as to minimize energy loss due to mutual repulsion, and may be connected to each transmission path.

公开(公告)号：US11922302B2

公开(公告)日：2024-03-05

申请号：US16684087

申请日：2019-11-14

Applicant: Korea Electronics Technology Institute

Inventor： Seok Hoon Jeon ,  Byung Soo Kim ,  Hee Tak Kim ,  Tae Ho Hwang

IPC: G06N3/08 ,  G06N3/049 ,  G06N3/082 ,  G06N3/084

CPC classification number: G06N3/08 ,  G06N3/049 ,  G06N3/082 ,  G06N3/084

Abstract: Provided are a hyperparameter optimizer and method for optimizing hyperparameters and a spiking neural network processing unit. The optimizer includes a statistical analyzer configured to receive training data and perform statistical analysis on the training data, an objective function generator configured to generate hyperparameter-specific objective functions by using a statistical analysis value of the statistical analyzer, and an optimal hyperparameter selector configured to select optimal hyperparameters according to certain rules on the basis of the hyperparameter-specific objective functions.

公开(公告)号：US11090501B2

公开(公告)日：2021-08-17

申请号：US16209400

申请日：2018-12-04

Applicant: KOREA ELECTRONICS TECHNOLOGY INSTITUTE

Inventor： Hyun Moon Park ,  Dong Sun Kim ,  Tae Ho Hwang

IPC: A61N1/37 ,  A61N1/378 ,  H02N2/18 ,  A61N1/375

Abstract: A heart pacemaker according to the present invention includes a generator configured to generate nonlinear electrical energy using a friction element and an energy harvester configured to sequentially store the generated nonlinear electrical energy in multi-stage multiple energy storages and supply the electrical energy stored in the multiple energy storages.