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| 20100266157 | METHOD FOR EMBEDDING WATERMARK INTO AN IMAGE AND DIGITAL VIDEO RECORDER USING SAID METHOD - The present invention relates to a method for embedding and detecting watermark wherein forgery/alternation of image can be identified and the location of forgery/alternation can be verified by embedding and detecting watermark into a digital image which is shot in real time. Watermark is generated by using a quantized coefficient after frequency transform used in the compression process. By embedding this into an image, image can be compressed simultaneously with embedding watermark. The present invention discloses a method for embedding robust watermark which embeds a random sequence circular shifted from an original pseudo random sequence by the distance d as watermark into an image. The present invention discloses a technology for generating and embedding watermark by using a DCT coefficient quantized during the process for MPEG compressing the image, wherein said watermark can be generated and embedded in a unit of macro blocks or slices. The present invention discloses a technology for generating and embedding watermark by using a wavelet coefficient quantized during the process for wavelet compressing the image. Further, the present invention discloses a digital video recorder recording the image which is shot in real time embedded with watermark in accordance with the above method for embedding watermark. | 10-21-2010 |
| 20100299759 | DIGITAL INFORMATION SECURITY SYSTEM, KERNAL DRIVER APPARATUS AND DIGITAL INFORMATION SECURITY METHOD - Disclosed herein are a digital information security system, a kernel driver apparatus, and a digital information security method. The digital information security system includes a user module configured to operate in a user mode and to provide environment setting information comprising policy information about a use of digital information, and a kernel driver configured to operate in a kernel mode, to acquire information generated by an application of the user mode for the use of digital information, and to perform rights control regarding the use of digital information based on the acquired information and the policy information. Accordingly, the construction of a security system can be simplified, and the security of a security system can be improved. | 11-25-2010 |
| 20110010559 | METHOD FOR ENCRYPTING DIGITAL FILE, METHOD FOR DECRYPTING DIGITAL FILE, APPARATUS FOR PROCESSING DIGITAL FILE AND APPARATUS FOR CONVERTING ENCRYPTION FORMAT - Disclosed herein are a digital file encryption method, a digital file decryption method, a digital file processing apparatus, and an encryption format conversion apparatus. The digital file encryption method includes encrypting a file using specific encryption information, storing the encrypted file in a file system, and storing the encryption information in a stream provided by the file system. Accordingly, since file lengths before and after encryption are identical to each other, an application needs not to consider a header length or perform offset correction when using an encrypted file. | 01-13-2011 |
| 20110010756 | VIRTUAL APPLICATION PROGRAM SYSTEM, STORING DEVICE, METHOD FOR EXECUTING VIRTUAL APPLICATION PROGRAM AND METHOD FOR PROTECTING VIRTUAL ENVIRONMENT - The present invention relates to a virtual application program system, a storage device, a method of executing a virtual application program, and a method of protecting a virtual environment. The virtual application program system includes an execution control module for executing a virtual application program, and a virtual environment protection module loaded by the execution control module and configured to block non-permitted application programs from accessing a virtual environment accessed by the virtual application program. Accordingly, the virtual environment can be protected from a host application program, etc., and independency and security of a task using a virtual application program can be guaranteed. | 01-13-2011 |
| 20110072424 | SYSTEM FOR CREATING VIRTUAL APPLICATION, METHOD FOR INSTALLING VIRTUAL APPLICATION, METHOD FOR CALLING NATIVE API AND METHOD FOR EXECUTING VIRTUAL APPLICATION - A virtual application creating system, a virtual application installing method, a native API calling method and a virtual application executing method are disclosed. The virtual application creating system comprises a virtual environment library block including a plurality of modules that process native application program interfaces (APIs) of an operating system such that the native application APIs are suited to a virtual environment, finding a module capable of processing a specific native API from the plurality of modules when the specific native API is called and operating the found module; a virtual application installation block receiving position information of an application to be virtualized and information on an installation place where the application will be virtualized and installed from a user and inserting the virtual environment library block into a memory to install a virtual application in the installation place; and a virtual application execution block executing the virtual application installed in the installation place. Accordingly, an application selected by a user can be virtualized and installed in a position designated by the user, for example, an external storage unit, and the installed virtual application can be executed in a virtual environment independent from a host. | 03-24-2011 |
| 20110286624 | METHOD AND APPARATUS FOR WATERMARKING OF 3D MESH MODEL - Provided are a watermarking method and a watermarking apparatus for a mesh mode, which are applicable to a system which requires high precision, such as a rapid prototyping system. A reference coordinate system is set using 1-ring values of vertices of a 3D mesh model. The vertices are sorted based on the set reference coordinate system, and bit-information of the watermark consisting of bit string is, respectively, embedded into each of polygonal faces of the 3D mesh model in the sorted order. | 11-24-2011 |
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| 20080294097 | Portable Infusion Set - Disclosed is a portable infusion set which comprises a supply pump for artificially supplying infusion solution to a tube passage connecting a solution storing vessel and an injection syringe, an elastic tube which is installed at the rear end of the supply pump and which is made of elastic material so that the infusion solution supplied from the supply pump is introduced or discharged through the expansion or contraction of the elastic tube, a supply sensor which detects the expansion or contraction limit of the elastic tube, and a micro-computer which controls power supply to the supply pump according to the signal of the supply sensor. The infusion solution is temporarily stored in elastic tube by the supply pump which is set to on/off by the micro-computer, and then injected to a human body with constant pressure through the contractile force of the elastic tube. By using the portable infusion set of the present invention, infusion solution can be supplied when the storing vessel is below human body and power consumption is lowered by intermittent use of the supply pump making the infusion set light and portable, and overpressure between the supply pump and the injection syringe that occurs when the syringe is clogged is prevented making the use of the infusion set more safe | 11-27-2008 |
| 20100194712 | OPTICAL POINTING DEVICE AND PORTABLE ELECTRONIC DEVICE HAVING THE SAME - Disclosed herein is an optical pointing device as a user interface for electronic devices such as communication terminals and the like. The optical pointing device includes a light receiving part, an optical unit transferring light to the light receiving part and including a reflection part disposed in an optical path, a frame body integrally formed with the reflection part to support the reflection part, a cover covering the frame body and having an interface surface, and a light source illuminating the cover. The optical pointing device reduces the number of components and permits convenient and easy assembly, thereby significantly improving productivity while reducing assembly defect. | 08-05-2010 |
| 20110085665 | Method For Generating Dynamic Group Key - A method of generating a dynamic group key of a group formed of a plurality of nodes, the method including: unicasting a public key that is based on respective secret keys of each of a plurality of general nodes excluding a master node, which is one of the plurality of nodes, wherein the unicasting is performed by the general nodes; broadcasting to the group an encryption value obtained by exponentially-calculating a secret key of the master node to the plurality of public keys, wherein the broadcasting is performed by the master node upon receiving the plurality of public keys; and obtaining a group key by using an inverse power-calculation of the respective secret keys of each of the general nodes based on the encryption value, wherein the obtaining is performed by the general nodes. | 04-14-2011 |
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| 20100084649 | OXIDE THIN FILM TRANSISTOR AND METHOD OF FABRICATING THE SAME - An oxide thin film transistor (TFT) and its fabrication method are disclosed. In a TFT of a bottom gate structure using amorphous zinc oxide (ZnO)-based semiconductor as an active layer, source and drain electrodes are formed, on which the active layer made of oxide semiconductor is formed to thus prevent degeneration of the oxide semiconductor in etching the source and drain electrodes. The oxide TFT includes: a gate electrode form on a substrate; a gate insulating layer formed on the gate electrode; source and drain electrodes formed on the gate insulating layer and having a multi-layer structure of two or more layers; and an active layer formed on the source and drain electrodes and formed of amorphous zinc oxide-based semiconductor, wherein a metal layer such as indium-tin-oxide, molybdenum, and the like, having good ohmic-contact characteristics with titanium and a titanium alloy having good bonding force with oxygen or the oxide-based semiconductor is formed at an uppermost portion of the source and drain electrodes. In a method for fabricating an oxide TFT, a silicon nitride film is deposited with a sputter equipment without the necessity of H | 04-08-2010 |
| 20100210056 | Method of fabricating array substrate - A method of fabricating an array substrate for a display device includes steps of forming a gate line and a gate electrode on a substrate, forming a gate insulating layer and an intrinsic amorphous silicon layer, forming an oxide semiconductor layer, increasing a conductive property of the oxide semiconductor layer, forming a metal layer, forming a first photoresist pattern and a second photoresist pattern having a thinner thickness than the first photoresist pattern, forming a data line, a source drain pattern, an oxide semiconductor pattern and an active layer, removing the second photoresist pattern and exposing the source drain pattern, wet-etching the source drain pattern using a first etchant, thereby forming source and drain electrodes, wet-etching the oxide semiconductor pattern using a second etchant, thereby forming ohmic contact layers, removing the first photoresist pattern, forming a passivation layer having a drain contact hole exposing the drain electrode on the source and drain electrodes, and forming a pixel electrode connected to the drain electrode through the drain contact hole, wherein the active layer has a uniform thickness in the switching region. | 08-19-2010 |
| 20100301325 | OXIDE THIN FILM TRANSISTOR AND METHOD OF FABRICATING THE SAME - A method for fabricating a liquid crystal display (LCD) device include: forming a gate electrode on a substrate; forming a gate insulating layer on the substrate; forming a primary active layer having a tapered portion to a side of a channel region of the primary active layer on the gate insulating layer, and forming source and drain electrodes on the primary active layer; and forming a secondary active layer made of amorphous zinc oxide-based semiconductor on the source and drain electrodes and being in contact with the tapered portion of the primary active layer, wherein the primary active layer is etched at a low selectivity during a wet etching of the source and drain electrodes, to have the tapered portion. | 12-02-2010 |
| 20100304528 | METHOD OF FABRICATING OXIDE THIN FILM TRANSISTOR - According to a method of fabricating an oxide thin-film transistor, when a thin-film transistor is fabricated by using an amorphous zinc oxide (ZnO)-based semiconductor as an active layer, it may be possible to reduce a tact time as well as attain an enhanced element characteristic by depositing an insulation layer having an oxide characteristic in-situ through controlling oxygen (O | 12-02-2010 |
| 20110108832 | LIQUID CRYSTAL DISPLAY DEVICE AND METHOD FOR FABRICATING THE SAME - Disclosed are a liquid crystal display device employing an amorphous zinc oxide-based semiconductor as an active layer, and a method for fabricating the same, whereby device stability can be secured by employing an etch stopper structure and device characteristics can be enhanced by minimizing exposure and deterioration of the active layer excluding content regions by virtue of the design of the etching stopper in a shape like “H”. Also, the liquid crystal display device and the fabrication method thereof can further form a semiconductor pattern and an insulating layer pattern on the intersection between the gate line and the data line, so as to compensate a stepped portion, thereby preventing an occurrence of short-circuit. | 05-12-2011 |
| 20110291096 | ARRAY SUBSTRATE AND METHOD OF FABRICATING THE SAME - A method of fabricating an array substrate and a display device including the array substrate are discussed. According to an embodiment, the method includes forming a gate electrode on a substrate, forming a gate insulating layer on the gate electrode, forming an oxide semiconductor layer and an etch prevention layer on the gate insulating layer using a single mask, forming source and drain electrodes on the etch prevention layer, and forming a passivation layer including a contact hole on the source and drain electrodes and on the gate insulating layer, and forming a pixel electrode on the passivation layer and through the contact hole. | 12-01-2011 |
| 20120012839 | OXIDE THIN FILM TRANSISTOR AND METHOD OF FABRICATING THE SAME - A method for fabricating a liquid crystal display (LCD) device include: forming a gate electrode on a substrate; forming a gate insulating layer on the substrate; forming a primary active layer having a tapered portion to a side of a channel region of the primary active layer on the gate insulating layer, and forming source and drain electrodes on the primary active layer; and forming a secondary active layer made of amorphous zinc oxide-based semiconductor on the source and drain electrodes and being in contact with the tapered portion of the primary active layer, wherein the primary active layer is etched at a low selectivity during a wet etching of the source and drain electrodes, to have the tapered portion. | 01-19-2012 |
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| 20080311333 | Silicone Release Compositions with Controlled Peeling Force and Silicone Release Coating Films Coated with the Same - The invention pertains to a silicone release composition of which the peeling force can be controlled and also a silicone release film coated with the composition. With the inventive composition and the release film coated with the composition, it is possible to obtain a reproducible peeling force with a given value, and also possible to produce a uniformly coated release film without discharged harmful solvent. The silicone release film produced as such can have controlled peeling force with a stable peeling force characteristic compatible with viscous agent. To this end, the invention is characterized in that the silicone release composition of which the peeling force can be controlled according to the invention is a silicone water-dispersed release coating composition, contains organopolysiloxane, organopolysiloxane resin, organo hydrogen polysiloxane and platinum chelate catalyst, and meets the following math figure for peeling force:
| 12-18-2008 |
| 20090197100 | ANTISTATIC SILICONE RELEASE COATING FILMS - The invention relates to an antistatic silicone release film having a layer coated with an antistatic silicone release composition, and, used for semiconductors, electronics and display devices while addressing problems of static electricity generated when a general release film is separated from adhesive or an adhesive layer, and of contamination by such static electricity that causes critical product defects. The invention also relates to an antistatic silicon release film that can reduce product contamination caused by static electricity in peeling the film from adhesive or an adhesive layer, and achieves close adhesion between a substrate and a coated layer because of no interruption in curing a release layer, and also thereby has a stable release property. | 08-06-2009 |
