Apparatus and method for storing reproduction related information in digital versatile disc player

• US 5,933,394 A
• Filed: 06/20/1997
• Issued: 08/03/1999
• Est. Priority Date: 06/21/1996
• Status: Expired due to Term

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Kim, Young-Chul
• Primary Examiner(s): DINH, TAN X
• Application Number:
  US08/880,171
• Time in Patent Office: 774 Days
• Field of Search: 309/32, 309/275.3, 309/58, 309/54, 309/47, 309/48, 386/69, 386/70, 386/83, 386/125, 386/126
• US Class Current: 386/353
• CPC Class Codes: G11B 2220/2562 DVDs [digital versatile discs]; Digital video discs; MMCDs; HDCDs
• CPC Class Codes: G11B 27/105 of operating discs
• CPC Class Codes: G11B 27/11 by using information not detectable on the record carrier

Abstract

An apparatus and a method for storing reproduction related information in a digital versatile disc includes temporarily storing information read from a disc in a memory, compressing, classifying, clearing, and converting the information, and storing only a minimum amount of the information into a second memory based on user selections, thereby reducing the size of the memory and the fabricating cost. The apparatus stores reproduction related information in the temporary memory from a higher level to a lower level. Therefore, only a minimum amount of information is stored in the memory, enabling a reduction in the size and fabricating cost of the memory.

Claims

1. An apparatus for storing reproduction related information in a digital versatile disc, comprising:

a pickup for reading data recorded on a disc;

high-frequency processing means for decoding the data read by said pickup, correcting errors thereof, and outputting a digital data stream;

information detecting means for receiving the digital data stream of said high-frequency processing means, detecting reproduction related information, and outputting desired reproduction related information, wherein said information detecting means comprises;

navigating means for extracting information including at least one of a title search pointer, program chain information, and program reproducing information from said digital data stream output from said high-frequency processing means; and

information selecting means for enabling selection of the desired reproduction related information from among the reproduction related information based on user input and for outputting the desired reproduction related information;

a first storing means for temporarily storing the information extracted by said navigating means; and

a second storing means for storing the desired information selected by said information selecting means from among the information stored in said first storing means.

2. A method for storing reproduction related information in a digital versatile disc, comprising:

extracting title search pointers from data read from a disc and temporarily storing the title search pointers in a first memory;

selecting a desired title search pointer among said title search pointers and storing the selected title search pointer in a second memory;

finding a position on the disc where program chain information corresponding to said desired title search pointer is located and temporarily storing the program chain information recorded at said position in the first memory;

selecting a desired program chain information among said program chain information and storing the desired program chain information in the second memory; and

finding a position on the disc where program reproducing information corresponding to said desired program chain information is located and storing the program reproducing information that is recorded at said position of the disc in the second memory.

3. The method of claim 2, wherein the program reproducing information includes at least one of a program command, an entry cell of a first program, cell playback information, and cell position information.

4. The method of claim 2, wherein selecting the desired title search pointer comprises:

displaying the title search pointers; and

enabling selection of the displayed title search pointers.

5. The method of claim 2, wherein selecting the desired program chain information comprises:

displaying the program chain information; and

enabling selection of the displayed program chain information.

24. The apparatus of claim 2, wherein the reproduction related information includes information that is related to reproduction of data from the disc.

6. An apparatus for storing reproduction related information in a digital versatile disc, comprising:

a digital data stream generating device generating a digital data stream based on information stored on a disc;

an information detecting unit receiving the digital data stream generated by said digital data stream generating device, and detecting and outputting reproduction related information based on the digital data stream received; and

a storage unit storing desired reproduction related information from among the reproduction related information detected by the information detecting unit, wherein the desired reproduction related information includes selected information from among the reproduction related information output by the information detecting unit.

7. The apparatus recited by claim 6, further comprising:

a memory for temporarily storing the reproduction related information output by the information detecting unit before the desired reproduction related information is stored in the storage unit.

8. The apparatus recited by claim 6, wherein said information detecting unit comprises:

a selector enabling selection of the desired reproduction related information to be output from among the reproduction related information detected by the information detecting unit.

9. The apparatus recited by claim 8, wherein the selection is made by a user.

10. The apparatus recited by claim 8, wherein said information detecting unit further comprises:

a navigator extracting at least one of a title search pointer, program chain information, and program reproducing information from said video signals output from said video signal generating device.

11. The apparatus recited by claim 10, further comprising:

a memory for temporary storing the reproduction related information detected by the information detecting unit before the desired reproduction related information is stored in the storage unit,

wherein said navigator transfers the desired reproduction related information from the memory to the storage unit based on output from the selector.

12. The apparatus as recited in claim 6, wherein the video signal generating device comprises:

a pickup reading data recorded on a disc; and

a high-frequency processing unit decoding the data read by said pickup, correcting errors of the decoded data, and outputting video signals based on the corrected decoded data.

13. The apparatus as recited in claim 6, wherein the desired reproduction related information that is stored in the storage device is program chain information.

14. The apparatus of claim 6, wherein the reproduction related information includes information that is related to reproduction of data from the disc.

15. A method for storing reproduction related information in a digital versatile disc, comprising:

generating a digital data stream based on information stored on a disc;

detecting and outputting reproduction related information based on the a digital data stream generated; and

storing desired reproduction related information from among the reproduction related information detected and output,

wherein the desired reproduction related information includes selected information from among the reproduction related information detected and output.

16. The method recited by claim 15, further comprising:

temporarily storing the reproduction related information output in a temporary memory before the desired reproduction related information is stored in a storage device.

17. The method recited by claim 16, wherein detecting reproduction related information comprises:

enabling selection of the desired reproduction related information to be output from among the reproduction related information detected.

18. The method recited by claim 17, wherein the selection is made by a user.

19. The method recited by claim 17, wherein detecting reproduction related information further comprises:

extracting at least one of a title search pointer, program chain information, and program reproducing information from said digital data stream generated.

20. The method recited by claim 15, further comprising:

temporarily storing the reproduction related information in a temporary memory before the desired reproduction related information is stored in a storage device,

wherein the desired reproduction related information is transferred from the temporary memory to the storage device based on a selection of the desired reproduction related information from among the reproduction related information detected.

21. The method as recited in claim 15, wherein generating the digital data stream comprises:

reading data recorded on a disc using a pickup; and

decoding the data read by said pickup, correcting errors of the decoded data, and outputting the digital data stream based on the corrected decoded data.

22. The method as recited in claim 15, wherein the desired reproduction related information is program chain information.

23. The method of claim 15, wherein the reproduction related information includes information that is related to reproduction of data from the disc.