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    Display driving circuit, host, and display system including display driving circuit and host
    2.
    发明授权
    Display driving circuit, host, and display system including display driving circuit and host 有权

    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.

    Backlight driver, backlight device including the same, and operating method of the backlight device
    3.
    发明授权
    Backlight driver, backlight device including the same, and operating method of the backlight device 有权

    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.

    Mobile devices and methods controlling power in mobile devices
    5.
    发明授权
    Mobile devices and methods controlling power in mobile devices 有权

    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.

    System on chip and electronic device including the same
    6.
    发明授权
    System on chip and electronic device including the same 有权

    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.

    Electronic system including voltage regulators
    7.
    发明授权
    Electronic system including voltage regulators 有权

    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.

    System on chip and electronic device including the same
    8.
    发明授权
    System on chip and electronic device including the same 有权

    公开(公告)号：US12181950B2

    公开(公告)日：2024-12-31

    申请号：US17943857

    申请日：2022-09-13

    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.

    Multiple power management integrated circuits and apparatus having dual pin interface
    10.
    发明授权
    Multiple power management integrated circuits and apparatus having dual pin interface 有权

    公开(公告)号：US11604485B2

    公开(公告)日：2023-03-14

    申请号：US17665907

    申请日：2022-02-07

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Minshik Seok ,  Younghoon Lee ,  Kyungrae Kim ,  Kyungsoo Lee ,  Junho Huh

    IPC: G05F1/56 ,  G06F1/26

    Abstract: Multiple power management integrated circuits (PMICs) may perform communication and power sequence operation coordination between the multiple PMICs through a communication interface connected to two signal lines using a dual pin interface. The multiple PMICs include a main PMIC configured to communicate with at least one application processor through a system interface and at least one sub-PMIC configured to communicate with the main PMIC through the communication interface. A first signal line uses a single bidirectional signaling scheme, and a power status signal PSTATUS is exchanged between the main PMIC and the at least one sub-PMIC through the first signal line. A second signal line uses a single unidirectional signaling scheme, and a power sequence control signal PIF is transmitted from the main PMIC to the at least one sub-PMIC through the second signal line.

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