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：US11907578B2

公开(公告)日：2024-02-20

申请号：US17587239

申请日：2022-01-28

Applicant: KOREA ELECTRONICS TECHNOLOGY INSTITUTE

Inventor： Young Kyu Kim ,  Byung Soo Kim ,  Young Jong Jang

IPC: G06F3/06 ,  G06F9/30

CPC classification number: G06F3/0659 ,  G06F3/0626 ,  G06F3/0673 ,  G06F9/30043

Abstract: The present disclosure relates to a method for classifying instructions according to the number of operands required for processing-in-memory instruction processing, and a computing device applying same. Efficient instruction processing in a processing-in-memory may include identifying the number of operands required when processing an instruction queuing to be processed, interpreting the instruction queuing to be processed and processing an instruction corresponding to the identified number of required operands. When the number of required operands is 0, the instruction interpretation may interpret the instruction queuing to be processed as a WRITE instruction, and the instruction processing may execute memory writing. When the number of required operands is not 0, the instruction processing may execute memory reading in an internal memory of the processing-in-memory by the same number of times as the number of operands required in the instruction interpreted in the instruction interpretation.

公开(公告)号：US11435942B2

公开(公告)日：2022-09-06

申请号：US17136813

申请日：2020-12-29

Applicant: Korea Electronics Technology Institute

Inventor： Byung Soo Kim ,  Young Jong Jang ,  Young Kyu Kim

IPC: G06F3/06

Abstract: This application relates to a method and apparatus for processing a new read-write-operation instruction added to an instruction set to maximize the performance of processing-in-memory (PIM). The read-write-operation instruction performs reading and writing on an operation result of the PIM by returning the operation result of the PIM to a computer system and, at the same time, writing the operation result to a destination address. An instruction processor in PIM includes a response data selector and a finite state machine to process the read-write-operation instruction. The response data selector includes a selector configured to select one of a response data signal and an operation result, and a three-phase buffer configured to allow or disallow response data. The finite state machine of the instruction processor outputs a response permission signal and a response selection signal for controlling the buffer and the selector.

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：US11347504B2

公开(公告)日：2022-05-31

申请号：US17137003

申请日：2020-12-29

Applicant: Korea Electronics Technology Institute

Inventor： Byung Soo Kim ,  Young Jong Jang ,  Young Kyu Kim

IPC: G06F9/30 ,  G06F9/38 ,  G06F9/448

Abstract: This application relates to a memory management method for maximizing processing-in-memory (PIM) performance and reducing unnecessary DRAM access time. In one aspect, when processing a PIM instruction packet, an instruction processing unit secondarily processes a request for access to a destination address at which read and write actions of an internal memory are likely to be sequentially performed. By secondarily requesting the destination address, a row address of an open page of the internal memory may match a row address to which a PIM instruction packet processing result is written back. Also, the instruction processing unit inside the PIM maintains memory write and read addresses that have previously requested. The instruction processing unit compares the address of a packet to be processed to the maintained previous memory address and informs a memory controller about the comparison result through a page closing signal.