Abstract: A image processing method includes computing an initial phase corresponding to a difference between a position of a first pixel of an input image and a position of a first pixel of an output image using at least one of scaling ratio information between the input and output images, chroma subsampling format conversion information applied between the input and output images, or rotation angle information of the input image, and determining the position of the first pixel of the output image based on the initial phase and the position of the first pixel of the input image.

Abstract: Provided herein is a platform application service of a virtual desktop using virtualization technology, and more particularly, a virtual desktop providing method and virtual desktop providing server that support a lightweight protocol technology so that a virtual desktop service may be used smoothly even where a network environment is poor when providing a virtual desktop service, the virtual desktop providing method including collecting state information of a client terminal being received from the client terminal and state information of the virtual desktop providing server; determining an environment factor for a virtual desktop of the client terminal based on the state information of the client terminal and the state information of the virtual desktop providing server; and applying the environment factor and controlling the virtual desktop being serviced to the client terminal.

Abstract: An image processor, an application processor, a method of operating an image processor, and a chips set of an image processor are provided. The image processor includes a scaler configured to perform scaling on an input image and generate a scaled input image; and a selection circuit configured to transmit the scaled input image to either a low latency memory or a high density memory according to a memory selection signal. The application processor includes a memory configured to store an input image; and an image processor configured to scale the input image, wherein the image processor comprises a scaler configured to perform scaling on the input image and generate a scaled input image and a selection circuit configured to transmit the scaled input image to either a low latency memory or a high density memory according to a memory selection signal.

Abstract: A portable terminal including: a controller receiving signals corresponding to a plurality of input buttons and outputting image data to be displayed on the plurality of input buttons using the received signals; and a plurality of buttons for inputting a key from a user and outputting a signal corresponding to the key pressed, and for receiving the image data from the controller and displaying the received image data. By using the display buttons for displaying variable images corresponding to specific functions as well as an essential function of inputting keys from a user when a specific function is input in the portable terminal, a plurality of functions can be input with only a few buttons, providing speed and convenience to the user for function input.

Abstract: A system on chip (SoC) including a memory management unit (MMU) and a memory address translation method thereof are provided. The SoC includes a master intellectual property (IP) configured to output a request corresponding to each of a plurality of working sets; an MMU module comprising a plurality of MMUs, each of which is allocated for one of the working sets and translates virtual addresses corresponding to the request into physical addresses; a first bus interconnect configured to connect the MMU module with a memory device and to transmit the request, on which address translation has been performed in at least one of the MMUs, to the memory device; and a second bus interconnect configured to connect the master IP with the MMU module and to allocate one of the MMUs for each of the working sets.

Abstract: Disclosed are an asynchronous pipeline system, a stage, and a data transfer mechanism. The asynchronous pipeline system having a plurality of stages based on a 4-phase protocol, includes: a first stage among the plurality of stages; and a second stage among the plurality of stages connected next to the first stage, wherein the first stage transmits and the second receives bundled data and control data through an always bundled data channel and on-demand data through an on-demand data channel according to need of the second stage.

Abstract: An application processor includes a first scaler including a first vertical scaler and a first horizontal scaler, and a second scaler including a second vertical scaler and a second horizontal scaler, wherein the second vertical scaler is selectively shared between the first scaler and the second scaler in response to a determination of resolution for an image being processed.

Abstract: A method of operating an integrated circuit is provided. The method includes receiving a data block offset from a second storage device, obtaining a target entry address using the data block offset, and reading an entry among a plurality of entries comprised in a buffer descriptor stored in a first storage device based on the target entry address. The method also includes reading data from a data buffer among a plurality of data buffers included in the first storage device using a physical address included in the entry and transmitting the data to the second storage device.

Abstract: A portable terminal having display buttons for displaying images corresponding to specific functions through keys pressed by a user, and a method of inputting functions of the portable terminal using the display buttons. The portable terminal includes: a controller which receives signals corresponding to a user key pressed from the plurality of input buttons and outputs image data to be displayed on each of the plurality of input buttons using the received signals; and a plurality of buttons for inputting a key from a user and outputting a signal corresponding to the key pressed, and for receiving the image data from the controller and displaying the received image data.

Abstract: Disclosed herein are a Desktop As A Service (DaaS) manager and DaaS client for a DaaS system. The DaaS manager includes a connection broker module, a provisioning module, a management module, and a web server module. The connection broker module permits connections to a DaaS client and a DaaS server to a user who has performed user authentication. The provisioning module determines the operating status of the DaaS server, and assigns a virtual machine of an optimum DaaS server to the DaaS client. The management module monitors the operating status of the DaaS server and the virtual machine, and executes a control command of the DaaS server. The web server module provides a web-based management tool Graphic User Interface (GUI) to the user.

Abstract: A method and apparatus for audio signal encoding for noise reduction are provided. The method includes: receiving an audio signal and performing modified discrete cosine transformation (MDCT) on the audio signal to convert the audio signal into a long block or a short block; reducing noise included in the audio signal in accordance with the long block or the short block; and performing advanced audio coding (AAC) on the long block or the short block in which noise is reduced.

Abstract: Disclosed is a virtual machine service system, including: one or more virtual machines connected to a network through connection with virtual network interfaces provided from a first network card or connection with a second network card; a management module monitoring network usage of one or more virtual machines and reallocating the virtual network interfaces to one or more virtual machines according to a monitoring result; and an agent module providing to the management module network connection information of one or more virtual machines.

Abstract: Provided is a method of providing a virtual machine image file in a cloud computing-based virtual desktop infrastructure. This method includes moving a golden image, an initial image provided from a shared storage, to a virtual machine driving server, converting the golden image into an image of a copy-on-write file format, and storing the same in a cache; allocating the converted virtual machine image to a virtual machine, and storing images of each virtual machine in the shared storage and managing the same to recover a virtual desktop when a disaster occurs. The method includes generating only data changed by the virtual machine, as a virtual machine image file, and managing the same, and hierarchically configuring a virtual machine image file based on a base image and storing the same in a cache memory in order to increase a loading rate of the virtual machine image file including the base image-based virtual machine image file.

Abstract: A communication method and a terminal adopting same are provided. The method includes setting a calling terminal in a short-range wireless communication standby mode; and transmitting, upon detecting movement of the calling terminal during the short-range wireless communication standby mode, data to a called terminal via a short-range wireless communication.

Abstract: Exemplary embodiments of the present invention relate to a method and system for providing massive virtual desktops. A system for providing massive virtual desktops according to an embodiment of the present invention comprises a uppermost layer configured to receive a virtual desktop providing request from a client, search an adjacent lower layer involved in a virtual desktop service for the client, and transmit the virtual desktop providing request to the searched adjacent lower layer; and a lowest layer configured to receive the virtual desktop providing request transmitted from an adjacent upper layer, search a virtual desktop to perform a service by analyzing the virtual desktop providing request, and transmit the searched virtual desktop to the client. According to embodiments of the present invention, a virtual desktop can be provided to massive users.

Abstract: The present invention relates to a method and an architecture capable of efficiently providing a virtual desktop service. The service architecture for the virtual desktop service includes a connection broker for performing the management of virtual machines, a server monitoring function, and a protocol coordination function. A resource pool is configured to manage software resources that are transferred to a specific virtual machine in a streaming form at a predetermined time and that are executed on the specific virtual machine and to provide provision information about the managed software resources at the request of the connection broker, in order to provide an on-demand virtual desktop service. A virtual machine infrastructure is configured to support hardware resources, generate virtual machines in which the software of the user terminal is operated, and provide the virtual machines as virtual desktops.

Abstract: Provided is a virtual desktop service, and disclosed is a system for providing a server virtual machine, including: a client configured to receive allocation of a virtual machine for using a virtual desktop service; a connection broker configured to control a type of virtual machine to be allocated to be classified according to user terminal registration information of the client, any one operation server to be selected among a plurality of operation servers, and the virtual machine to be allocated; the plurality of operation servers configured to provide the client with a virtual machine under a control of the connection broker; and a shared storage configured to store data related to the client for providing the virtual machine, and provide the stored data to the operation servers, a method of providing a server virtual machine, and a server device supporting the same.

Abstract: Disclosed herein are a virtual server and a virtual machine management method for supporting a zero client. The virtual server includes a virtual machine management agent unit and a virtualization unit. The virtual machine management agent unit generates a virtual host interface resource pool and a directly allocatable host interface resource pool by classifying attributes of host interface resources of the virtual server. The virtualization unit provides a host interface of a virtual machine by selectively using any one of emulation mode in which a virtual host interface set corresponding to the virtual host interface resource pool is generated and direct connection mode in which a directly allocatable host interface set corresponding to the directly allocatable host interface resource pool is connected to the zero client.

Abstract: Disclosed is a virtual desktop service method. The virtual desktop service method includes configuring and measuring users and resources according to predetermined criteria, copying operating system files and data files to be provided to the users before use request, receiving request to use a virtual machine from any one of the users and performing user authentication and work approval, and providing an operating system file and a data file of the any one of the users, among the copied operating system files and data files, to the any one of the users according to the use request to transmit a virtual desktop environment. Consequently, the virtual desktop service method performs a service to provide a virtual machine to a user in real time.

Abstract: A method and an apparatus for providing a virtual desktop service to provide an optimal virtual desktop service in accordance with distances between virtualization servers and a user are provided. A virtual desktop service suitable for a request of the user is provided to the user so that loads of servers may be dispersed and power usage of the servers may be minimized. That is, in an environment where the virtualization servers that provide the virtual desktop service are locally dispersed, the virtual machines may be allocated to a virtualization server with a shortest network delay based on network distances from the virtualization servers to the user. In addition, after a server power usage amount is predicted in accordance with a virtual machine usage type of the user, a virtualization server may be selected in accordance with the prediction result.