公开(公告)号：US12206756B2

公开(公告)日：2025-01-21

申请号：US17082790

申请日：2020-10-28

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Younsung Chu ,  Junho Huh

IPC: H04L9/00 ,  H04L9/06 ,  H04L9/32

Abstract: An electronic device of a first domain, which is a blockchain-based public key infrastructure (PKI) domain, includes: an interface configured to receive, from a first entity belonging to a second domain which is a certification authority (CA)-based PKI domain, a first certificate of the first entity and a second certificate of a second entity, wherein the second entity is an upper node of the first entity and is a node of a blockchain; a memory configured to store the first certificate and the second certificate; and a processor configured to look up a transaction corresponding to the second entity at a distributed ledger of the first domain based on an identifier of the second entity, verify the second certificate based on the transaction, and verify the first certificate based on the second certificate.

公开(公告)号：US12131696B2

公开(公告)日：2024-10-29

申请号：US18351177

申请日：2023-07-12

Applicant: Samsung Electronics Co., Ltd.

Inventor： Changju Lee ,  Kyounghwan Kwon ,  Junho Huh

IPC: G09G3/3225 ,  G09G3/3233

CPC classification number: G09G3/3225 ,  G09G2310/08 ,  G09G2320/0247 ,  G09G2330/023

Abstract: A display system includes a host configured to transfer image data respectively corresponding to a plurality of frames through a main channel, and to transfer a synchronization signal that synchronizes a clock signal of the host with a clock signal of the display driving circuit through an auxiliary channel, a display panel configured to display the image data, and a display driving circuit configured to generate control signals driving the display panel, based on the synchronization signal received through the auxiliary channel. The host is configured to transfer the synchronization signal including a first synchronization signal and a second synchronization signal that is different from the first synchronization signal, to the display driving circuit, through the auxiliary channel.

公开(公告)号：US11615752B2

公开(公告)日：2023-03-28

申请号：US17244369

申请日：2021-04-29

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Changju Lee ,  Yongil Kwon ,  Yoon-Kyung Choi ,  Junho Huh

IPC: G09G3/32 ,  G09G3/34 ,  G09G5/10

Abstract: A backlight device includes LED elements divided into dimming groups; a panel driver configured to output a reference current for driving the LED elements; and pixel circuits, each of which is connected to the panel driver through a common line and is respectively configured to drive first LED elements comprised in a corresponding dimming group. Each of the pixel circuits is configured to: in a first period of a frame period, obtain a reference voltage based on the reference current and store the reference voltage, in a second period of the frame period, obtain luminance data of an image displayed by the corresponding dimming group, and in a third period of the frame period, drive the first LED elements during a light emitting time corresponding to the luminance data obtained in the second period using the reference voltage stored in the first period.

公开(公告)号：US12225286B2

公开(公告)日：2025-02-11

申请号：US17730616

申请日：2022-04-27

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sooyong Kim ,  Dongook Chung ,  Junho Huh

IPC: H04N23/60 ,  G06T7/20 ,  H04N23/611 ,  H04N23/65 ,  H04N23/667

Abstract: A sensor includes a control circuit set to a first operation mode in which an operation is prepared by receiving a clock signal from a processor and receiving an operation command from the processor. The sensor is configured to generate a first signal including a result of an operation corresponding to the operation command and a second signal indicating completion of the operation. An interface circuit is configured to transmit the first signal and the second signal to the processor. The control circuit is set to a second operation mode due to blocking of the clock signal by a control of the processor in response to the transmission of the second signal.

公开(公告)号：US11537154B2

公开(公告)日：2022-12-27

申请号：US17460389

申请日：2021-08-30

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Kyoungmin Lee ,  Changsoo Kim ,  Byungchul Jeon ,  Junghun Heo ,  Junho Huh

IPC: G05F1/56 ,  H02M1/00 ,  H02M3/04 ,  H05K1/18

Abstract: A mobile device includes; a PCB including a first side and a second side, a PMIC generating power supply voltages and mounted on the second side of the PCB, a package substrate mounted on the first side of PCB using first interconnects, an IC mounted on the first side of the package substrate, LDO regulators mounted on the second side of the package substrate and disposed between the first interconnects, and high density capacitors disposed between each of the LDO regulators and the second side of the package substrate, wherein the PCB includes first electrical paths connecting the PMIC to the LDO regulators, and the package substrate includes second electrical paths connecting the LDO regulators to the IC.

公开(公告)号：US11467652B2

公开(公告)日：2022-10-11

申请号：US16845661

申请日：2020-04-10

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Byungchul Jeon ,  Jae Min Kim ,  Hyunseok Kim ,  Junho Huh

IPC: G06F1/00 ,  G06F1/3287 ,  G06F1/3296 ,  H03K17/687

Abstract: A system on chip (SoC) includes a first core and a second core, first and second power gating switches, and a first power switch. The first power gating switch is arranged between the first core and a first power rail that receives a first voltage, and is selectively turned on in response to a first power gating signal. The second power gating switch is arranged between the second core and a second power rail that receives a second voltage, and is selectively turned on in response to a second power gating signal. The first power switch is arranged between the first power rail and the second power rail, and is selectively turned on in response to a first power control signal to connect the first power gating switch or the second power gating switch both the first power rail and the second power rail.

公开(公告)号：US11146161B2

公开(公告)日：2021-10-12

申请号：US15931798

申请日：2020-05-14

Applicant: Samsung Electronics Co., Ltd.

Inventor： Byungchul Jeon ,  Hyunseok Kim ,  Junho Huh ,  Jaemin Kim

IPC: H02M1/00 ,  H02M3/158

Abstract: An electronic system includes a plurality of voltage regulators configured to convert an input voltage, a plurality of inductors respectively connected to the plurality of voltage regulators to respectively output a plurality of converting currents, and a switching unit configured to select at least one converting current from among the plurality of converting currents in response to a switching control signal and supply power to a load unit based on the selected at least one converting current.

公开(公告)号：US11734067B2

公开(公告)日：2023-08-22

申请号：US16789602

申请日：2020-02-13

Applicant: Samsung Electronics Co., Ltd.

Inventor： Jae Min Kim ,  Byungchul Jeon ,  Junho Huh

IPC: G06F9/48 ,  G06F9/50 ,  G06F1/3287 ,  G06F11/30 ,  G06F11/34

CPC classification number: G06F9/4893 ,  G06F1/3287 ,  G06F9/505 ,  G06F11/3024 ,  G06F11/3423 ,  G06F2209/486

Abstract: In a method of operating a multi-core system comprising a plurality of processor cores, a plurality of task stall information respectively corresponding to a plurality of tasks are provided by monitoring a task stall time with respect to each task. The task stall time indicates a time while the each task is suspended within a task active time, and the task active time indicates a time while a corresponding processor core is occupied by the each task. Task scheduling is performed based on the plurality of task stall information, and a fine-grained dynamic voltage and frequency scaling (DVFS) is performed based on the task scheduling. The plurality of tasks may be assigned to the plurality of processor cores based on load unbalancing, and the effects of the fine-grained DVFS may be increased to reduce the power consumption of the multi-core system.

公开(公告)号：US11552801B2

公开(公告)日：2023-01-10

申请号：US16790243

申请日：2020-02-13

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sunghyun Kim ,  Junho Huh

IPC: H04L9/32 ,  G06F3/06 ,  G06F21/55

Abstract: In a method of operating a memory system, first security data and a first timestamp for preventing a replay attack are written by a host device to a first memory area which is an external memory area. A second timestamp is updated by the host device based on the first timestamp. The second timestamp corresponding to the first timestamp is stored in a second memory area distinguished from the first memory area. A first notification signal representing a result of updating the second timestamp is received by the host device. A writing operation for the first security data is completed when it is determined, by the host device, based on the first notification signal that the second timestamp is successfully updated.

公开(公告)号：US11436176B2

公开(公告)日：2022-09-06

申请号：US16734844

申请日：2020-01-06

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Kyungsoo Lee ,  Jaewon Lee ,  Junho Huh ,  Helin Lin

IPC: G06F13/40 ,  G06F9/4401 ,  G06F13/24 ,  G06F13/42

Abstract: A semiconductor integrated circuit includes a central processing unit, a hardware function block that outputs a plurality of hardware signals to be transmitted to an external device independently of the central processing unit, a virtual general purpose input/output (GPIO) finite state machine that transforms the plurality of hardware signals to a virtual GPIO payload, and an I3C communication block that transmits the virtual GPIO payload to the external device through a serial data line and a serial clock line.