Abstract: A time shift apparatus and method for a digital multimedia broadcasting (DMB) terminal are disclosed wherein bookmarks are automatically placed at individual programs during time-shift recording of broadcast data, thereby enabling movement between programs. A broadcast data recording method comprises performing, in response to a request for a time-shift/bookmark operation during reception of DMB broadcast data, a time-shift operation; finding start times of individual programs in the broadcast data during the time-shift operation; and inserting a bookmark at each program and storing the broadcast data.

Abstract: An optical disk recording and reproducing apparatus including at least two optical disk drives, and a digital converter to encode and decode audio/video (A/V) signals reproduced from the at least two optical disk drives. The digital converter is installed at a middle portion between the at least two optical disk drives, such that the at least two optical disk drives and the digital converter respectively form the shortest communication paths possible.

Abstract: The present invention relates to a safety lever system in a cab of an excavator, which is capable of preventing an unintended descending of a control box without the operation of the safety lever, and promoting a safer tilting of the control box through a limit means that controls the power application/short-circuit. According to the present invention, if the operator tilts the control box to get in or get out of the cab, the safety lever system shunts (i.e., short-circuit) the power of the control lever or the control box. Therefore, the possibility of malfunction of the excavator due to the miss-operation of the operator is very slim, and the control box cannot be returned to its original position unless the operator operates the safety lever again. This structural improvement of the safety lever eliminates a possibility of the malfunction of the excavator due to the operator's mistake, and markedly increases the reliability of the excavator.