Hewlett-packard Development Company, L.p.

Compaq Information Technologies Group, L.p.

Craig Walrath

Robin T Castell

William Caldwell Crosswy

Matthew J Wagner

Christian Perone

Diego Rahn Medaglia

Wagston Staehler

Keith A Rogers

Ricardo Marquez

Lee Warren Atkinson

James M Mann

Taciano Perez

Philip H Doragh

Liqun Chen

Boris Balacheff

Thomas J Bonola

Lee Atkinson

Michael P Moriarty

Fraser John Dickin

Charles N Shaver

Carlos Haas Costa

Joao Claudio Ambrosi

Thiago Silva

Taciano Dreckmann Perez

In some examples, securing data on a computing device includes one or more cryptographic operations on at least a portion of data stored in a memory module of the computing device in response to a change of operational state of the system from a first operational state to a second operational state.

Securing data

Examples of a system and method for securing data on a computing device are described herein. One or more cryptographic operations are executed on at least a portion of data stored in a memory module of the computing device in response to a change of operational state of the system from a first operational state to a second operational state.

An example non-transitory computer-readable medium includes instructions that, when executed by a processor, cause the processor to receive a request for data. The instructions also cause the processor to determine a region containing the data based on the metadata. The instructions cause the processor to traverse a tree in the metadata to determine key generation information relating a decryption key for the region to a root key.

Key generation information trees

An example computing device includes a battery to power the computing device, a first operating system (OS), a second OS, and a hypervisor. The hypervisor is to: monitor a parameter of the first OS related to power to be drawn by the computing device for the first OS to enter a hibernate state; monitor a parameter of the second OS related to power to be drawn by the computing device for the second OS to enter the hibernate state; set a first modified remaining battery capacity of the first OS based on an actual remaining battery capacity of the battery and the parameter of the first OS; and set a second modified remaining battery capacity of the second OS based on the actual remaining battery capacity and the parameter of the second OS.

Report updated threshold level based on parameter

A system includes a non-volatile memory to store a page cache that contains pages of data allocated by an operating system, the pages in the page cache being persistent across a power cycle of the system. The page cache is located in a specified region of the non-volatile memory and is to store the pages of data without tagging a memory region.

Page cache in a non-volatile memory

As part of starting a system including a system-on-a-chip (SoC) device from a mode in which power is removed from the system, the SoC device determines, based on the metadata, whether to resume the system to a prior system state. In response to the metadata indicating that the system is to be resumed to the prior system state, the system is resumed to the prior system state using system state information stored in the on-chip non-volatile memory.

Resuming a system-on-a-chip device

In one embodiment of the present invention, a portable computing device for wireless communications comprises a first network interface for communicating with a public wireless wide area network (WWAN), a second network interface for communicating with a private wireless local area network (WLAN), and a processor executing under control of software instructions, the software instructions defining a gateway protocol, the gateway protocol establishing the portable computing device as an access point within the private WLAN after the wireless presence on the public WWAN is established.

Portable computing device for wireless communications and method of operation

Example embodiments disclosed herein relate to reporting a first updated threshold level related to a battery. A parameter related to power to be drawn by the computing device for the first OS to enter a hibernate state is monitored. The first updated threshold level are set based on the parameter. The first updated threshold level is reported to the first OS. The first OS is to vary the first battery level threshold based on the first updated threshold level.

To recover data, tampering of an electronic device that stores data in a storage medium of the electronic device is detected. A recovery procedure receives information relating to prioritizing of types of the data, and the recovery procedure detects a communication link. The recovery procedure sends the data over the communication link for transfer to a recovery destination, wherein the data is sent in an order according to the information relating to prioritizing of the types of the data.

Recovering data in a storage medium of an electronic device that has been tampered with

An address to access a location in a storage device () is received, and the address is scrambled. Write data is encrypted using an encryption key. The encrypted write data is stored in the storage device at a location of the storage device specified by the scrambled address.

Scrambling an address and encrypting write data for storing in a storage device

A virtualized environment allocation system comprises a computer system having a plurality of virtualized stacks, the computer system configured to have a plurality of input/output (I/O) devices coupled thereto, and an allocation controller configured to allocate at least one of the plurality of I/O devices to a first of the plurality of virtualized stacks and at least another of the plurality of I/O devices to a second of the plurality of virtualized stacks.

Virtualized environment allocation system and method

A first software stack and a second software stack are run in a virtual environment. The virtual environment may be created by a hardware virtualizer. The hardware virtualizer may send the first software stack to the discrete graphics processing unit and the second software stack to the integrated graphics processing unit.

Growing community of inventors

Spring, TX, United States of America

Craig Walrath