Patent ID: 6694089
Filing Date: 2004-02-17
Classification: G11B,H04N

Abstract:
An optical disk recording device comprising:an audio encoder encoding audio data to be recorded on an optical disk; a video encoder encoding video data to be recorded on the optical disk; a mixer mixing the outputs of the audio and video encoders and outputting data to be recorded on the optical disk; a memory prestoring a plurality of pictures; a switch selectively selecting one of the outputs of the mixer and the memory; a channel encoder channel-encoding the output of the switch and outputting bit streams; a laser driver driving a light source of an optical pickup according to the bit streams received from the channel encoder, and recording the bit streams on the optical disk; a random number generator generating random numbers; a timer generating an interrupt signal upon passage of a preset time unit; and a microcontroller that: sets a direct access unit time in the timer; activates the timer when data starts to be recorded on the disk; stores a current recording location of the disk as a reproduction starting address upon generation of the interrupt signal; sequentially reads one of the plurality of pictures based on a random number from the random number generator; records the picture as a choice menu on the optical disk after the data has been completely recorded on the disk; generates a direct access table in which reproduction starting addresses are cross-referenced with the recording locations of the choice menus on the disk; and records the direct access table at a specific area on the disk.