 Recording and reading space control between a read/write probe and a recording medium |
| The present invention has been made to solve the above-noted problems and has as its object the ... |
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| Method of digitally compressed video and audio data |
| It is therefore an object of the present invention to provide a data recording system capable of ... |
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| Adapter and adapter system for playback of a compact disc and a mini disc in an optical disc apparatus |
| Accordingly, the present invention has been made in order to solve to the aforementioned problems, ... |
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| Method and apparatus for reducing noise in a video signal |
| I claim: 1. A method of reducing noise in a video signal, comprising: passing said video signal ... |
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Compact disk and high-speed search method thereof and recording method appropriate therefor
| Details |
Inventors: Lee, Deok-hyun; Park, Gyoung-chan; You, Won-jae; Kang, Jae-yong;
Assignee: Samsung Electronics Co., Ltd. (Kyungki-do, KR)
Primary Examiner: Dinh; Tan
Assistant Examiner:
Attorney, Agent or Firm: Sughrue, Mion, Zinn, Macpeak & Seas
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. |
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DETAILED DESCRIPTION It is one object of the present invention to provide a search method which can search a program at high speed and thus decrease the overall playback time of a compact disk in which a plurality of programs, each of which has an index number, are recorded.
It is another object of the present invention to provide a compact disk which can reduce a search time for a program recorded therein.
It is a third object of the present invention to provide a recording method appropriate for the compact disk.
To achieve the first object described above, there is provided a method for reproducing a selected program of a plurality of programs recorded on a compact disk, wherein an index table having index numbers and starting addresses corresponding to said plurality of programs is also recorded on said compact disk.
The method comprises the steps of: inputting an input number; creating a temporary index number by combining said input number and any other previously input numbers; reading said index table to obtain a starting address of a program which corresponds to said temporary index number; reading said program corresponding to said temporary index number; storing said program in a temporary memory; repeating the steps of inputting an input number, creating a temporary index number, reading said index table, reading said program, and storing said program until a reproduction command is input.
To achieve the second object, there is provided a compact disk on which a plurality of programs are recorded.
The compact disk comprises: a lead-in area on which table-of-content information is recorded, wherein said table-of-content information comprises information of a plurality of recording tracks and address information of each of said recording tracks; a program area on which index-table information is recorded on an innermost circumference of said compact disk, wherein said index-table information comprises index numbers and starting addresses of a plurality of programs recorded in said program area and wherein said plurality of programs are sequentially recorded in a direction from said innermost circumference to an outermost circumference of said compact disk in a tree structure based on said index numbers of said plurality of programs; and a lead-out area on which termination information of a recording area is recorded
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