Samsung Electronics Co., Ltd.

Jae-jin Choi

Kyung-im Jung

Seung-Hwan Moon

Jung-Hwan Kim

Byung-Rae Lee

Yun-Sang Oh

Moon-Sang Kwon

Shin-Han Kim

Joong-Chul Yoon

Kyung-Im Jung

A method for moving a rights object (RO) between devices, a method of using a content object based on the moving method, and devices using the methods are provided. The moving method includes performing authentication between two devices; securing a connection between the devices; and communicating the rights object between the two devices. The using method includes two devices communicating with each other, the first device having use permission of content objects and the second device including the content objects and corresponding rights objects; the first device searching for the content objects; and the first device using the content object that was found. The device includes an authentication module to authenticate another device; a security formation module to secure a connection for the other device; and a transceiving module which communicates a rights object for which the connection has been secured.

Method for moving a rights object between devices and a method and device for using a content object based on the moving method and device

A method and apparatus for managing digital rights of a portable storage device are provided. The method comprises a device performing authentication together with the portable storage device and sharing an encryption key with the portable storage device as a result of the authentication, requesting a rights object list from the portable storage device, receiving the rights object list from the portable storage device, and processing and displaying the rights object list.

Method and apparatus for managing digital rights of portable storage device

A liquid crystal display of the present invention comprises a panel on which are formed a plurality of thin film transistors, a plurality of gate lines connected to gate electrodes of the thin film transistors, a plurality of data lines connected to source lines of the thin film transistors, a gate driver that applies a gate signal to the gate lines of the panel, a data voltage generator that generates data voltages which has many voltage levels, a data driver that applies to the data lines a data voltage for displaying picture signals on the liquid crystal display, a common electrode voltage generator that generates a common electrode voltage applied to a common electrode of the panel, a compensator for a distortion of common electrode voltage that is connected between the panel and the data voltage generator and compensates for the distortion of common electrode voltage by changing the data voltage. The crosstalk phenomenon of the LCD can be decreased in accordance with the present invention.

Liquid crystal display thin film transistor driving circuit

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Seoul, South Korea

Jae-jin Choi