公开(公告)号：US10770967B2

公开(公告)日：2020-09-08

申请号：US16185060

申请日：2018-11-09

Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP

Inventor： William J. Walker

IPC: H02M1/42 ,  H05K7/20

Abstract: A predictive power factor control system for an electronic system which includes a power supply providing power at a power supply output to a load having at least one component operable in a plurality of operating states. A load controller selectively determines the operating state of the load. A power factor control (PFC) circuit is coupled to the power supply and cooperates with the power supply to maintain the power factor of the power supply output within desired ranges. The load controller may provide the PFC circuit with a pending load change notification prior to a pending change in the operating state of the controlled load or prior to the activation of additional loads on the power supply output, enabling the PFC circuit to predictively adjust operation to avoid or minimize power factor fluctuations arising from changes in operating state of the load or activation of an additional loads.

公开(公告)号：US20200153329A1

公开(公告)日：2020-05-14

申请号：US16185060

申请日：2018-11-09

Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP

Inventor： William J. Walker

IPC: H02M1/42 ,  H05K7/20

Abstract: A predictive power factor control system for an electronic system which includes a power supply providing power at a power supply output to a load having at least one component operable in a plurality of operating states. A load controller selectively determines the operating state of the load. A power factor control (PFC) circuit is coupled to the power supply and cooperates with the power supply to maintain the power factor of the power supply output within desired ranges. The load controller may provide the PFC circuit with a pending load change notification prior to a pending change in the operating state of the controlled load or prior to the activation of additional loads on the power supply output, enabling the PFC circuit to predictively adjust operation to avoid or minimize power factor fluctuations arising from changes in operating state of the load or activation of an additional loads.

公开(公告)号：US20200151324A1

公开(公告)日：2020-05-14

申请号：US16183793

申请日：2018-11-08

Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP

Inventor： William J. Walker ,  Michael T. Gill

IPC: G06F21/55 ,  G06F21/62

Abstract: Securing data exchanged between components such as hardware sub-systems of a computing device (e.g., internal communications) during a request-response cycle is desirable. In some implementations, methods and systems as disclosed to secure computing devices against attackers attempting to take physical control of a computer system (or portion thereof) to compromise the system or steal data managed by the computer system. In one example, data transmission request from sender to a receiver may be identified and associated with a unique identifier to individually identify the data transmission request (e.g., a request internal to the computer system). The request may then be provided to the receiver and a later response may be identified and validated prior to returning the response data to the requestor. The validation may include ensuring an associated tag (e.g., unique identifier) is provided with the response to tie it to the request for which the response is being sent.

公开(公告)号：US11106788B2

公开(公告)日：2021-08-31

申请号：US16183793

申请日：2018-11-08

Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP

Inventor： William J. Walker ,  Michael T. Gill

IPC: G06F21/82 ,  G06F21/85 ,  G06F21/55 ,  G06F21/62 ,  G06F21/70

Abstract: Securing data exchanged between components such as hardware sub-systems of a computing device (e.g., internal communications) during a request-response cycle is desirable. In some implementations, methods and systems as disclosed to secure computing devices against attackers attempting to take physical control of a computer system (or portion thereof) to compromise the system or steal data managed by the computer system. In one example, data transmission request from sender to a receiver may be identified and associated with a unique identifier to individually identify the data transmission request (e.g., a request internal to the computer system). The request may then be provided to the receiver and a later response may be identified and validated prior to returning the response data to the requestor. The validation may include ensuring an associated tag (e.g., unique identifier) is provided with the response to tie it to the request for which the response is being sent.