Patent application number | Description | Published |
20110242421 | IMAGE DISTORTION CORRECTION APPARATUS AND METHOD - An image distortion correction apparatus and method are provided. The image distortion apparatus includes an image projector which projects an image on a projection screen; a user interface which receives an adjustment signal allowing a keystone correction on the projected image; a keystone correction unit which corrects a keystone distortion of the projected image by moving each side of the projected image according to the adjustment signal; and a controller which controls the image projector and the keystone correction unit to correct the image. | 10-06-2011 |
20120032880 | POINTING DEVICE AND DISPLAY APPARATUS HAVING THE SAME - A display apparatus including a pointing device which generates a light beam and projects the light beam on a screen; a camera which detects a trace of the light beam imaged on the screen; and an image processing unit which processes an image corresponding to the trace of the light beam detected by the camera to display the image on the screen. The pointing device includes: a first light source unit which generates and emits a first light beam having a first wavelength range, a second light source unit which generates and emits a second light beam having a second wavelength range different from the first wavelength range, and a switching circuit which selectively applies power to one of the first light source unit and the second light source unit depending on a distance between the screen and the pointing device, so that one of the first light beam of the first wavelength range and the second light beam of the second wavelength range is selectively projected to form the light beam on the screen. | 02-09-2012 |
20130062571 | METHOD FOR PREPARING ELECTRODE ACTIVE MATERIAL SLURRY AND ELECTROCHEMICAL CAPACITOR COMPRISING ELECTRODE USING ELECTRODE ACTIVE MATERIAL SLURRY PREPARED BY THE METHOD - A method for preparing electrode active material slurry including: mixing a conductive agent and a first thickener with a low molecular weight to primarily disperse the mixture; and mixing an active material and a second thickener with a higher molecular weight than the first thickener in the primary dispersion to secondarily disperse the mixture, and an electrochemical capacitor comprising an electrode using electrode active material slurry prepared by the method. It is possible to prepare a low resistance and high capacity electrochemical capacitor by selectively using at least two thickeners with different degrees of polymerization and molecular weights to remarkably improve dispersibility of an active material and a conductive agent. Particularly, it is possible to reduce resistance based on an electrochemical capacitor with the same capacity. | 03-14-2013 |
20130070389 | ELECTRODE FOR ENERGY STORAGE AND METHOD FOR MANUFACTURING THE SAME - The present invention relates to an electrode for an energy storage and a method for manufacturing the same and provides a useful effect of improving resistance characteristics of an electrode for an energy storage by forming a trench of predetermined dimensions on a surface of a current collector, forming a conductive layer, which includes a conductive agent as much as possible, on the surface of the current collector, and forming an electrode layer including an electrode active material, a conductive agent, and a binder on the conductive layer. | 03-21-2013 |
20130163146 | ELECTRODE ACTIVE MATERIAL-CONDUCTIVE AGENT COMPOSITE, METHOD FOR PREPARING THE SAME, AND ELECTROCHEMICAL CAPACITOR COMPRISING THE SAME - The present invention relates to an electrode active material-conductive agent composite including an electrode active material and a conductive agent, a method for preparing the same, an electrochemical capacitor comprising the same. | 06-27-2013 |
20130170099 | ELECTRODE OF ENERGY STORAGE AND METHOD FOR MANUFACTURING THE SAME - Disclosed herein are an electrode of an energy storage and a method for manufacturing the same. The electrode includes: a current collector; a first electrode layer provided on one surface or both surfaces of the current collector; and a second electrode layer bonded to an outer surface of the first electrode layer, wherein in each of the first and second electrode layers, content ratios of an active material, a conductive material, and a binder, and materials thereof are different. Therefore, reliability of the energy storage may be increased and resistance thereof may be decreased. | 07-04-2013 |
20130238553 | CLOUD COMPUTING SYSTEM AND DATA SYNCHRONIZATION METHOD - A cloud computing system includes a plurality of small medium business (SMB) network system and a cloud hosting and storage system. Each of the SMB network systems includes a plurality of first client terminals and a physical network-attached storage (NAS) configured to store one or more original files accessible by at least one of the first client terminals. The cloud hosting and storage system is configured to generate a virtual NAS corresponding to the physical NAS in accordance with one or more requests for cloud hosting service made by the physical NAS through a network, and allocate a virtual storage space for the SMB network system. The virtual storage space is configured to store one or more backup files of the original files stored in the physical NAS. | 09-12-2013 |
20140173272 | CLOUD STORAGE SYSTEM, DATA ENCRYPTION PROCESSING DEVICE AND DATA ENCRYPTION METHOD IN CLOUD STORAGE SYSTEM - A cloud storage system includes a plurality of cloud storage modules for storing and managing data and a data encryption processing device. The data encryption processing device includes a priority manager for managing priorities on encrypting data of a plurality of cloud storage modules by using information on whether encryption processing for each of the plurality of the cloud storage modules is supported; and an encryption requester for selecting at least one cloud storage module on the basis of the priorities managed by the priority manager when receiving request of a data encryption, and performing, by the selected at least one cloud storage module, encryption after delivering the data to the selected cloud storage module. | 06-19-2014 |