Patent application number | Description | Published |
20080208756 | APPARATUS AND METHOD FOR PROVIDING SECURITY DOMAIN - An apparatus and method for providing a security domain are provided. The apparatus includes a security domain which is not connected to an external system and which manages a digital rights management (DRM) license requiring security; a non-security domain which can be connected to the external system and which manages encrypted DRM content; and a virtual controller which controls the security domain and the non-security domain. The method includes requesting checking of a license for encrypted content; checking whether the license for encrypted content exists, in response to the requesting checking of the license; and if it is determined that the license exists, requesting transmission of encrypted content, decrypting the encrypted content, and playing the decrypted content. | 08-28-2008 |
20080256599 | APPARATUS AND METHOD FOR PROTECTING SYSTEM IN VIRTUALIZED ENVIRONMENT - Provided is an apparatus and method for protecting a system in a virtualized environment. The apparatus includes a domain unit including a plurality of domains, each having one or more device drivers; a system resource unit forming hardware of the system; a direct memory access (DMA) driver; and a control unit including an access control module which controls the access of the domain unit to the system resource unit in the virtualized environment. | 10-16-2008 |
20080263676 | SYSTEM AND METHOD FOR PROTECTING DATA INFORMATION STORED IN STORAGE - A system and method are provided for protecting data information stored in a storage medium. The system includes a memory unit which is divided into a plurality of storage regions in which data information is stored; a domain unit which includes a plurality of OS domains, which are access subjects, and loads the data information stored in the storage regions that are accessed by the OS domains; and a control unit which controls access of the domain unit to the memory unit. | 10-23-2008 |
20080276299 | WIRELESS TERMINAL APPARATUS AND METHOD OF PROTECTING SYSTEM RESOURCES - A wireless terminal apparatus is provided, which includes a domain unit having a first domain which drives a first application and a second domain, separated from the first domain, which drives a second application; a system resource unit composed of hardware of the wireless terminal apparatus; and a control unit which controls an operation of the domain unit that accesses the system resource unit. | 11-06-2008 |
20090031421 | METHOD OF INTRUSION DETECTION IN TERMINAL DEVICE AND INTRUSION DETECTING APPARATUS - A method of intrusion detection in a terminal device that supports driving of a plurality of operating systems, is provided. The method includes collecting at a first operating system of the plurality of operating systems intrusion detection data for analyzing whether there is an intrusion in at least a second operating system of the plurality of operating systems; and performing at the first operating system an intrusion detection with respect to the at least a second operating system using the collected intrusion detection data. | 01-29-2009 |
20090259658 | APPARATUS AND METHOD FOR STORING AND RETRIEVING FILES - An apparatus and a method for storing and retrieving files, the apparatus including a menu generation unit to generate a retrieval menu screen to input a retrieval condition, a token generation unit to generate a token by hashing at least one retrieval condition which is input through the retrieval menu screen, and a file retrieval unit to retrieve files matching the retrieval condition by comparing the generated token with each file information included in at least one file to be retrieved. | 10-15-2009 |
20090293058 | VIRTUAL SYSTEM AND METHOD OF RESTRICTING USE OF CONTENTS IN THE VIRTUAL SYSTEM - Provided is a method of restricting use of contents in a virtual system comprising at least one virtual machine implemented by applying virtualization technology to a predetermined device. The method includes: reading a first device identifier from the device in order to identify the device; reading a second device identifier, which is a device identifier allocated to the at least one virtual machine, from the at least one virtual machine; determining whether the first device identifier is identical to the second device identifier; and selectively restricting use of contents in the at least one virtual machine based on a result of the determining. | 11-26-2009 |
20100037232 | Virtualization apparatus and method for controlling the same - A virtualization apparatus and a method for controlling the same. In a method for controlling a virtualization apparatus including a plurality of domains, a sub domain transmits an input/output (IO) request for a hardware device to a main domain, and the main domain controls whether or not the IO request accesses the hardware device according to a resource needed to perform the IO request. | 02-11-2010 |
20100132015 | APPARATUS AND METHOD FOR PROVIDING SECURITY INFORMATION IN VIRTUAL ENVIRONMENT - An apparatus and method of providing security information in a virtual environment that supports a plurality of operating systems. The plurality of operating systems include at least one secure operating system in which applications whose safety has been verified are installed, and at least one normal operating system in which applications whose safety has been not verified are freely installed. The server operating system may provide security information corresponding to an operating system in which an application executed as foreground is installed, to provide information indicating whether an application is operated in a secure operating system, to a user. | 05-27-2010 |
20110126139 | APPARATUS AND METHOD FOR SWITCHING BETWEEN VIRTUAL MACHINES - An apparatus and method for switching a VM screen in an environment in which a plurality of OSs operating on a virtual machine monitor (VMM), are provided. The VM screen switching apparatus provides VM screen switching so that features of a home screen or an operation screen provided by each VM can be shown. The VM screen switching apparatus provides a user interface for enabling a user to select a desired VM from a plurality of VMs. The apparatus determines a VM to be displayed as a foreground according to a user input signal, and combines graphic data of a currently displayed screen of a VM with graphic data for a screen of the determined VM to create a screen displaying VM screen switching, and outputs the created screen to a display device. | 05-26-2011 |
20110154328 | Virtualization Apparatus and Method - An apparatus and method for providing an integrated user interface for a variety of operating systems are provided. When a user request execution of an application included in a second operating system an application of a first operating system is in the foreground of a display, the apparatus switches the application included in the second operating system to the foreground of the display without the need for a separate window. One of a server operating system and client operating systems may be set as a main domain that provides an integrated graphic user interface with respect to applications executed on a plurality of operating systems. The operating systems not set to the main domain may be set as sub-domains each of which provides application information to the main domain in response to a request from the main domain. In response to an application execution request, the server operating system may switch an operating system in which the corresponding application is present to the foreground of the display. | 06-23-2011 |
20110202706 | METHOD AND DRIVER FOR PROCESSING DATA IN A VIRTUALIZED ENVIRONMENT - A data processing method and driver capable of reducing transactions between operating systems (OS) in a virtualization environment that supports a plurality of operating systems are provided. The data processing driver reads, when reading data, an Inode of next data. Then, the data processing driver determines whether or not to request an Inode to a host OS by comparing the read Inode with a requested Inode. | 08-18-2011 |
20120084602 | FAULT RESTORATION APPARATUS AND METHOD FOR USE IN A VIRTUAL ENVIRONMENT - A fault restoration technique for use in a virtual environment is provided. The fault restoration technique includes monitoring fault state values of a plurality of domains, detecting a faulty domain, if any, from the plurality of, and restoring the faulty domain by reloading the OS of the faulty domain. | 04-05-2012 |
20120084787 | APPARATUS AND METHOD FOR CONTROLLING A RESOURCE UTILIZATION POLICY IN A VIRTUAL ENVIRONMENT - An apparatus and method for controlling a resource utilization policy in a virtual environment are provided. The apparatus may increase network throughput by dynamically adjusting the resource utilization policies of a driver domain that can directly access a shared device, and a guest driver that cannot directly access the shared device. In addition, the apparatus may improve the efficiency of the use of CPU resources by appropriately adjusting the CPU occupancy rates of the driver and guest domains. | 04-05-2012 |
20120101996 | APPARATUS AND METHOD FOR SNAPSHOT IMAGE SEGMENTATION - Provided are an apparatus to restore data, and a snapshot image segmentation apparatus and method that create a plurality of snapshot images, store the snapshot images in a storage, and load the stored snapshot images to a memory according to snapshot image loading priority. The snapshot image segmentation apparatus may includes a number-of-snapshot images deciding unit configured to decide the number of snapshot images, a segmentation unit configured to segment an entire image including data stored in a memory into one or more snapshot images, based on the number of snapshot images, and a loading priority deciding unit configured to decide snapshot image loading priority of the segmented snapshot images, based on data loading priority of the data stored in the memory. | 04-26-2012 |
20120159482 | SEAMLESS APPLICATION INTEGRATION APPARATUS AND METHOD - A seamless application integration apparatus and method are provided. The seamless application integration apparatus includes a seamless integration server that is installed in a host virtual machine so as to provide a seamless application integration (SAI) environment in a virtualization system that comprises the host virtual machine and at least one guest virtual machine. The apparatus also includes a dynamic reconfiguration unit determines whether a seamless integration client that corresponds to the seamless integration server has been installed in the guest virtual machine, and that may install the seamless integration client in the guest virtual machine according to the determination result. | 06-21-2012 |
20120216193 | APPARATUS AND METHOD FOR CONTROLLING VIRTUAL MACHINE SCHEDULE TIME - A virtualization apparatus is provided. The virtualization apparatus includes a plurality of virtual machines (VMs), a process scheduler configured to schedule processes to be executed on the respective virtual machines, a virtual machine monitor (VMM) configured to provide each of the virtual machine with a virtualized execution environment, a virtual machine scheduler configured to schedule the virtual machines to run in the virtual machine monitor, and a synchronization unit configured to synchronize a process schedule time which is scheduled by the process scheduler and a virtual machine schedule time which is scheduled by the virtual machine scheduler, or to change the virtual machine schedule time in consideration of the process schedule time. | 08-23-2012 |
20120221765 | MANAGEMENT OF MEMORY POOL IN VIRTUALIZATION ENVIRONMENT - A virtualization apparatus is provided. The virtualization apparatus includes a plurality of virtual machines configured to have priority levels, a memory pool configured to be shared between the plurality of virtual machines and store part of data stored in a system memory of each of the plurality of virtual machines, and a memory pool manager configured to process a memory allocation request or a data storage request regarding the memory pool in consideration of the priority levels of the plurality of virtual machines, a guaranteed memory size for each of the plurality of virtual machines, and a size of memory that can be allocated to each of the plurality of virtual machines. | 08-30-2012 |
20130024868 | APPARATUS AND METHOD FOR ALLOCATING A TASK - A task allocating apparatus capable of improving task processing performance is provided. The task allocating apparatus measures a core usage of a plurality of tasks that are run in multiple cores, according to predetermined periods, estimates a core usage of each task for a following period based on the measured core usages, and allocates one or more tasks to the multiple cores based on the estimated core usage. | 01-24-2013 |
20130124675 | APPARATUS AND METHOD FOR SOFTWARE MIGRATION IN MOBILE ENVIRONMENT - Provided is an apparatus for software migration between devices in a mobile environment. The software migration apparatus may include a policy manager configured to select a migration method for target software according to a migration environment, and a migration manager configured to perform migration of the target software according to the migration method. In addition, provided herein is a software migration method which is performed in a mobile environment. The software migration method may involve analyzing a current migration environment, selecting a migration method according to the analyzed current migration environment, and performing the migration of the target software. | 05-16-2013 |
20130152086 | APPARATUS AND METHOD FOR MANAGING VIRTUAL MEMORY - A virtual memory management apparatus and method to execute virtual machines in a multi-processor and multi-memory environment are provided. The virtual memory management apparatus includes a virtual system memory manager configured to allocate a virtual system memory to a virtual machine. The virtual memory management apparatus further includes a virtual swap device map storage configured to store location information of virtual swap devices that are able to be allocated to the virtual machine. The virtual memory management apparatus further includes a virtual swap device manager configured to allocate a virtual swap device to the virtual machine with reference to a virtual swap device map. | 06-13-2013 |
20130152096 | APPARATUS AND METHOD FOR DYNAMICALLY CONTROLLING PREEMPTION SECTION IN OPERATING SYSTEM - An apparatus for dynamically controlling a preemption section includes a preemption manager configured to monitor whether a system context has changed, and if the system context has changed, set a current preemptive mode according to the changed system context to dynamically control a preemption section of a kernel. Therefore, even when an application requiring real-time processing, such as a health-care application, co-exists with a normal application, optimal performance may be ensured. | 06-13-2013 |
20130179730 | APPARATUS AND METHOD FOR FAULT RECOVERY - An apparatus and a method for fault recovery are provided. The fault recovery apparatus includes a log manager configured to record system resource allocation information about a thread. The fault recovery apparatus further includes a recovery manager configured to create a recovery thread that substitutes for a target thread where a fault has occurred. The fault recovery apparatus further includes a resource manager configured to map a system resource that the target thread has used to the recovery thread based on referencing to the system resource allocation information. | 07-11-2013 |
20130305028 | METHOD AND APPARATUS FOR AUTHORIZING HOST TO ACCESS PORTABLE STORAGE DEVICE - A method and apparatus for authorizing a host to access a portable storage device and a method and apparatus of providing information for authorizing a host to access a portable storage device. The method includes: verifying integrity of host software requesting to transmit data; determining whether the host is authorized to access the portable storage device; and determining whether the host software is authorized to access the portable storage device. Accordingly, user information may be stored on the portable storage device and moved with security. | 11-14-2013 |
20140189869 | METHOD OF INTRUSION DETECTION IN TERMINAL DEVICE AND INTRUSION DETECTING APPARATUS - A method of intrusion detection in a terminal device that supports driving of a plurality of operating systems, is provided. The method includes collecting at a first operating system of the plurality of operating systems intrusion detection data for analyzing whether there is an intrusion in at least a second operating system of the plurality of operating systems; and performing at the first operating system an intrusion detection with respect to the at least a second operating system using the collected intrusion detection data. | 07-03-2014 |