Samsung Electronics Co., Ltd.

Gyoung-chan Park

Jae-yong Kang

Deok-hyun Lee

Yeon-Taek Han

Young-han Kim

Won-jae You

A data format is provided for song accompaniment which includes pointers indicating a starting position of accompaniment data and lyrics data in every section of a song is provided. The data format includes a lyrics data portion having lyrics data; an accompaniment data portion having accompaniment data corresponding to the lyrics data of the lyrics data portion; and a header portion having a plurality of pointer pairs, each pointer pair being composed of one pointer indicating the front position of each section in the lyrics data of the lyrics data portion and the other pointer indicating the front position of accompaniment data corresponding to the front position of each section. The data format has a header portion including pointers indicating the starting position of a section, thereby allowing the synchronization of the lyrics and accompaniment data of every section during the reproduction of a data format.

Data format and apparatus for song accompaniment which allows a user to

A compact disk, a high-speed searching method of the compact disk, and a recording method which corresponds to the high-speed searching method is provided. The compact disk includes a lead-in area and e program area. The lead-in area contains table-of-contents information which includes the number of recording tracks recorded on the disk and address information relating to each track. The program area contains index-table information which includes index numbers and starting addresses for a plurality of programs recorded on the disk. Furthermore, the plurality of programs are recorded in the program area according to its corresponding index number. Specifically, the programs are recorded from the innermost circumference to the outermost circumference of the disk in a tree structure based on the index numbers. By recording programs on the compact disk in the above order, a search through several thousands of song programs can be performed at high speed by gradually decreasing the distance in which an optical pickup device moves as the number of digits relating to the indexed addresses of the programs are increasingly input.

Compact disk and high-speed search method thereof and recording method

In an apparatus for sequentially reproducing the audio signal recorded in an adjacent track with a time interval T, an audio signal reproducing apparatus which reproduces an audio signal during a slow reproduction mode of operation includes a delay receiving an audio signal and generating a delayed audio signal, a signal-free period detector for detecting the period in which the received audio signal is discontinuous, and a switch, controlled by the signal-free period detector, for selectively providing one of the received audio signal and the delayed audio signal. The audio signal reproducing apparatus, which can be provided in a video tape recorder or a video disk player with a slow reproduction mode of operation can reproduce the audio signal without the annoying audio characteristics associated which sounds produced by a conventional slow reproduction apparatus. A method of generating a continuous audio signal during slow reproduction is also described.

Audio signal reproducing apparatus and method for use during a slow

A program search method for a digital signal processor which can search a program irrespective of the presence or absence of chapter numbers indicating portions of a recorded program includes the steps for setting predetermined search interval and reproduction period according to respective external inputs, jumping from a present location by the predetermined search interval set in the setting step, reproducing the program from a recording medium for the predetermined reproduction period set during the setting step after performing the jumping step, and then repeatedly performing the jumping and reproducing steps. In contrast with the conventional method, the program search method performs search and intro functions by the set intervals, which are defined in terms of time or frame units. Thus, the multi-intro scan function can be performed even if there is no chapter number differentiation for each respective program.

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Suwon, South Korea

Gyoung-chan Park