Samsung Electronics Co., Ltd.

Byong-ki Lee

Tae-hee Kim

Yun-ho Choi

Dong-keun Lim

A security device and controlling method thereof are provided. The security device includes: a storage configured to store a plurality of passwords, wherein a complexity of the passwords increases according to a security level; an inputter configured to receive a password input by a user; a detector configured to detect a security level of the received password by comparing the received password and the plurality of passwords stored in the storage; and a controller configured to provide an authority to access an element of an electronic device connected with the security device according to the detected security level.

Security device and controlling method thereof

An apparatus and a method of arbitrarily adjusting the output time of caption information included in a received multimedia transport stream for broadcasting, by user input. The method includes: receiving an input of a time value for adjusting the output time of caption information, from a user through a user interface; by demultiplexing the multimedia transport stream, dividing the transport stream into video, audio, and data packets, decoding each packet, and storing the decoded packets in buffers corresponding to a type of each packet; resetting the output time of the caption information by adding the input time value to or subtracting the input time value from the output time included in the video or audio packet; and according to the output time of the reset caption information, blending the data stored in the buffer with the video information and presenting the blended information on the screen.

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Suwon-si, South Korea

Byong-ki Lee