Abstract: A digital contents control system includes: a set-top box which generates a video for a master display device and a video for a slave display device with a received broadcasting signal and sends the generated videos to the master display device and the slave display device, respectively; the master display device for receiving the video generated for the master display device from the set-top box and displaying the received video; and the slave display device for receiving the video generated for the slave display device from the set-top box, displaying the received video and providing a control video area for control of the master display device or the slave display device to a separate display area, wherein, when a control instruction is input through the control video area provided in the slave display device, the input control instruction is sent to the set-top box and the set-top box controls the video for the master display device or the slave display device according to the input control instruction.

Abstract: The present invention relates to a platform system for object tagging and a method thereof. According to the platform system for object tagging of the present invention, since a user can add information in person, which he/she has about an individual object in contents provided by a website, into the contents of the website, as tag information, it is possible to enable an individual user to accurately, freely, and conveniently express information about an object in contents and to enable a plurality of users to actively create information and share more information by providing more users with information.

Abstract: A digital contents control system includes: a set-top box which generates a video for a master display device and a video for a slave display device with a received broadcasting signal and sends the generated videos to the master display device and the slave display device, respectively; the master display device for receiving the video generated for the master display device from the set-top box and displaying the received video; and the slave display device for receiving the video generated for the slave display device from the set-top box, displaying the received video and providing a control video area for control of the master display device or the slave display device to a separate display area, wherein, when a control instruction is input through the control video area provided in the slave display device, the input control instruction is sent to the set-top box and the set-top box controls the video for the master display device or the slave display device according to the input control instruction.

Abstract: A system, modem, receiver, transmitter and method for improving transmission performance. A coefficient may be calculated using a received signal. A process may be performed on at least one data packet scheduled for transmission based on the calculated coefficient. The process may improve transmission performance.

Abstract: A photographing apparatus wirelessly transmitting an image and a method of controlling the photographing apparatus are provided, in which, a wireless transmitter wirelessly transmits an image to an external apparatus, and a controller controls the wireless transmitter to transmit to the external apparatus at least one of an image generated through photographing and an image pre-stored in a storage unit. Thus, an image, which is being photographed, can be stored and modulated, and transmitted to prevent the photographed image from disappearing. Also, the image can be stored, and another image can be displayed on an external apparatus to provide convenience to a user.

Abstract: A system, modem, receiver, transmitter and method for improving transmission performance. A coefficient may be calculated using a received signal. A process may be performed on at least one data packet scheduled for transmission based on the calculated coefficient. The process may improve transmission performance.

Abstract: A thiazole compound represented by general formula (I), wherein R is hydrogen atom, a hydroxy group, a straight or branched C.sub.1 -C.sub.6 lower alkyl group, a C.sub.1 -C.sub.4 lower alkoxy group, phenyl group, a phenyl group having one to three substituents selected from a group consisting of a C.sub.1 -C.sub.4 lower alkyl group, a C.sub.1 -C.sub.4 lower alkoxy group, fluorine, chlorine, bromine and an amino group, a C.sub.1 -C.sub.5 alkylphenyl group, a phenyl group having one to three substituents selected from a group consisting of a C.sub.1 -C.sub.4 lower alkyl group, a C.sub.1 -C.sub.4 lower alkoxy group, fluorine, chlorine, bromine and an amino group, a substituted or unsubstituted guanidino group, or an amino group having a general formula: NR.sub.3 R.sub.4 in which R.sub.3 and R.sub.4, identical to or different from each other, represent independently a hydrogen atom, a C.sub.1 -C.sub.6 lower alkyl group, a C.sub.3 -C.sub.

Abstract: Novel 4-amino-3-acylnaphthyridine derivatives represented by formula (I), wherein R.sub.1 is hydrogen, C.sub.1 -C.sub.6 lower alkyl group, C.sub.1 -C.sub.6 lower alkoxy group, C.sub.1 -C.sub.6 lower alkoxyalkyl group, C.sub.3 -C.sub.6 cycloalkyl group, C.sub.3 -C.sub.6 cycloalkyl C.sub.1 -C.sub.6 alkyl group, a or phenyl group which maybe substituted with C.sub.1 -C.sub.6 alkyl group; R.sub.2 is hydrogen, C.sub.1 -C.sub.6 lower alkyl group, C.sub.1 -C.sub.6 alkoxy group, C.sub.1 -C.sub.6 alkylthio group, or a group of the formula: NR.sub.6 R.sub.7 wherein R.sub.6 and R.sub.7, identical to or different from each other, are independently hydrogen or C.sub.1 -C.sub.6 lower alkyl group, or R.sub.6 and R.sub.7 may form together 5-membered or 6-membered cycloalkyl group; R.sub.3 is hydrogen, C.sub.1 -C.sub.6 lower alkyl group, C.sub.1 -C.sub.6 alkoxy group, C.sub.1 -C.sub.6 alkylthio group, an amino group substituted with one or two C.sub.1 -C.sub.6 alkyl groups, halogen, cyano group, C.sub.1 -C.sub.