公开(公告)号：US20220148489A1

公开(公告)日：2022-05-12

申请号：US17414360

申请日：2019-07-29

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： Poying Chih ,  Wen Shih Chen

IPC: G09G3/20

Abstract: Examples of a display device with a removably coupled discrete graphics processing unit are described. In an example, the display device includes control circuitry to control the operation of the display device. The display device may further include a graphics interface. The graphics interface is to electrically and removably couple a discrete graphics processing unit (dGPU) to the control circuitry. The dGPU may generate processed display signals based on source display instructions received from a host computing system. The host computing system is any system operating independently with respect to the display device. In one example, visual information is rendered onto a display panel based on the processed display signal.

公开(公告)号：US20220140732A1

公开(公告)日：2022-05-05

申请号：US17435441

申请日：2019-07-23

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： Chao-Wen Cheng ,  Ying-Chi Chou ,  Feng Ming Lu ,  Chien Fa Huang ,  Chieh-Shen Huang ,  Tsung Yen Chen ,  Peter Seiler ,  Poying Chih

IPC: H02M3/158 ,  H02M1/00 ,  H02M1/10 ,  H02M1/36

Abstract: An example redundant power supply system comprises a power supply input to receive power from a power supply; a buck-boost converter coupled to the power supply input; and a controller coupled to the buck-boost converter. The controller is to receive a power supply identification signal from the power supply. The controller is also to enable or disable the buck-boost converter based on the power supply identification signal.

公开(公告)号：US11294446B2

公开(公告)日：2022-04-05

申请号：US16606848

申请日：2017-04-20

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Poying Chih ,  Raymond Liu ,  Shu Ming Kuo

IPC: G06F1/3206

Abstract: Examples for setting a system state as one of wakeable through a trigger and non-wakeable, are described. In one example, a value of an enabling time interval is obtained. Thereafter, it is determined if the enabling time interval has elapsed since the computing device has been in a low powered mode. Based on the determining, a system state is set as one of wakeable and non-wakeable through a trigger.

公开(公告)号：US20210281063A1

公开(公告)日：2021-09-09

申请号：US16482288

申请日：2017-10-19

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： Poying Chih ,  Chao-Wen Cheng ,  Shu Ming Kuo

IPC: H02H3/08 ,  G06F1/28 ,  G06F1/30 ,  G06F1/26

Abstract: An over current isolation circuit may, in an example, include a control chip, an input/output embedded controller communicatively coupled to the control chip, and an isolation circuit to isolate the control chip from an over current event based on a user selected preference to selectively enable and disable the signal of the over current event to the control chip.

公开(公告)号：US11824447B2

公开(公告)日：2023-11-21

申请号：US17435441

申请日：2019-07-23

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： Chao-Wen Cheng ,  Ying-Chi Chou ,  Feng Ming Lu ,  Chien Fa Huang ,  Chieh-Shen Huang ,  Tsung Yen Chen ,  Peter Seiler ,  Poying Chih

IPC: H02M3/158 ,  H02M1/00 ,  H02M1/10 ,  H02M1/36

CPC classification number: H02M3/1582 ,  H02M1/0009 ,  H02M1/10 ,  H02M1/36

Abstract: An example redundant power supply system comprises a power supply input to receive power from a power supply; a buck-boost converter coupled to the power supply input; and a controller coupled to the buck-boost converter. The controller is to receive a power supply identification signal from the power supply. The controller is also to enable or disable the buck-boost converter based on the power supply identification signal.

公开(公告)号：US20210089103A1

公开(公告)日：2021-03-25

申请号：US16954787

申请日：2018-01-31

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： Poying Chih ,  Tan Lin ,  Raymond Liu ,  ChenTai Huang

IPC: G06F1/32 ,  G06F9/4401 ,  G06F13/42

Abstract: Examples disclosed herein relate to changing power states of a device. Example devices include an input/output port to couple to a component to receive an actuation event. A chipset processor of the device may determine a power state of the device; in response to a determination that the power state is an ultra-low power state, determine a component identification (ID) of the component; fetch a reference ID from non-volatile memory; and compare the determined component ID with the reference ID. The chipset processor of the example device to transmit a signal to change the power state of the device in response to a match between the determined component ID and the reference ID and reception of signals indicative of an actuation event.