摘要:
Audio information coexists with best efforts data on a wireless network, such as a wireless local area network, by defining a backoff dedicated to communicate of audio information and using undedicated resources to communicate best efforts data. The backoff has a periodic interval that corresponds to the sample rate of the audio information so that a set of audio frame slots communicated at the start of a backoff interval has a length of time to complete communication. The set of audio frame slots has, for instance, an audio frame slot for each audio endpoint interfaced with the network. Periodic backoffs ensures synchronized audio playback by dedicating an antenna to communication of audio frames at the sample rate of the audio information, while supporting best efforts network communication when audio information is not being communicated.
摘要:
Systems and methods for providing secure platform services using an information handling system, and which may be implemented to sequester or otherwise isolate sensitive cryptographic processes, as well as the keys used during such decryption and encryption processes. The systems and methods may be implemented as a set of secure services that are available to an operating system or to a Hypervisor executing on an information handling system, and the processing environment may be provided as a closed environment, thus preventing malicious code from infiltrating the processing environment. Dedicated and secure memory space may be employed to prevent key detection through memory scans.
摘要:
An information handling system plays audio provided from a portable audio device at an information handling system audio subsystem in operating and powered down states of the information handling system. In the operating state, digital audio information is communicated from the portable audio device through a serial link for rendering at the information handling system into an analog audio signal presented by the audio subsystem. In the powered down state, digital audio information is rendered at the portable audio device and communicated as an analog audio signal through the serial link to the information handling system. A system module at the information handling system selectively switches the serial link to interface with the audio subsystem and play the analog signal as audible sounds. The system module supplies power to the audio subsystem to support playing the analog signal with the information handling system in the powered down state.
摘要:
An error engine associated with an optical disc drive plays an audible voice error message if an optical medium inserted in the optical drive based system is incompatible with the optical drive based system. For instance, if an optical medium with video navigation is input into an optical drive based system that supports only audio navigation, a voice message states, “this video disc is not playable in an audio system.” Plural types of voice messages may be selected to address plural types of incompatibilities. The voice messages are stored on the optical medium, in the optical drive based system or at a network location accessible by the optical drive based system.
摘要:
An information handling system—docking station arrangement is disclosed. The information handling system includes a first processor coupled to a main memory and a first docking connector. The docking station includes a second docking connector which mates with the first docking connector of the information handling system. When the information handling system is docked with the docking station, the information handling system interrogates the docking station to determine if a second processor is present in the docking station. If the information handling system detects a second processor in the docking station, then the information handling system switches to a multi-processing mode in which both the first and second processors are employed to process information. However, if the information handling system does not detect a second processor, then the system uses the first processor to process information.
摘要:
A system, method and apparatus are provided for creating a secure data path using a peer-to-peer enabled Peripheral Component Interconnect-Express (PCI-E) data communications path. In an exemplary implementation, a content receiver and rendering subsystem are provided, each aware of the other. The content receiver is operable to receive protected content from a source such as a set-top box. After authenticating the rendering subsystem as an approved content recipient, the content receiver preferably communicates decrypted content signals to the rendering subsystem via a peer-to-peer enabled PCI-E communications channel between the device systems. Once desired rendering processing operations have been performed on the decrypted content, the rendering subsystem may encrypt the rendered content before transmission to an associated display device for presentation.
摘要:
A protected stream manager includes one or more subsystems to receive a content stream in a virtual environment, obfuscate the content stream, and prioritize use of a processor to process the content stream.
摘要:
A method is provided for providing speaker management. The method may include initializing an information handling system (IHS) and initializing an external speaker coupled to the IHS. The external speaker may have a device identifier (ID) associated with it. Therefore, the method may also include receiving the device ID and filtering audio data sent to the external speaker. automatically loading an audio driver corresponding to the device ID. Using speaker compensation parameters associated with the audio driver, the method may include
摘要:
Option ROM updates are performed in a secure manner with centralized control through system initialization firmware, such as the system BIOS. An option ROM updater manages copying an option ROM update to an auxiliary subsystem if an update bit is set, such as by a secure system management interface with the BIOS. Upon detection of an update bit, the option ROM updater unlocks a write protect at the auxiliary subsystem firmware and copies an option ROM update to the auxiliary subsystem to update the option ROM. After completing the option ROM update, the option ROM updater locks write protection of the option ROM to maintain system security.
摘要:
A system, method, and computer-readable medium are disclosed for automatically provisioning a virtual image on a target system. A service operating system comprising a virtual machine monitor and a personalization agent is installed on a target system. A set of digital assets entitlement data is provided along with an associated set of digital assets data contained in a virtual software image, which is then installed on the target system by the personalization agent.