Method of recording and reproducing information on a video disk utilizing table of contents data

• US 5,351,132 A
• Filed: 09/09/1992
• Issued: 09/27/1994
• Est. Priority Date: 09/09/1991
• Status: Expired due to Fees

• Current Assignee: Pioneer Electronics (USA) Incorporated (Pioneer Corporation)
• Original Assignee: Pioneer Electronics (USA) Incorporated (Pioneer Corporation)
• Inventors: Todoroki, Ryuichi, Sakakibara, Takashi, Sawabe, Takao
• Primary Examiner(s): Chin, Tommy P.
• Assistant Examiner(s): Chevalier, Robert
• Application Number:
  US07/942,745
• Time in Patent Office: 748 Days
• Field of Search: 358/342, 358/313, 358/335, 358/310, 358/330, 369/44.26, 369/54, 369/48, 369/58
• US Class Current: 386/243
• CPC Class Codes: G11B 19/12 by sensing distinguishing features of or on records, e.g. diameter end mark
• CPC Class Codes: G11B 2220/20 Disc-shaped record carriers
• CPC Class Codes: G11B 2220/2587 Laser Discs; Optical disc using analog recording
• CPC Class Codes: G11B 27/034 on discs G11B27/036, G11B27/038 take precedence
• CPC Class Codes: G11B 27/105 of operating discs
• CPC Class Codes: G11B 27/3027 used signal is digitally coded
• CPC Class Codes: G11B 27/309 Table of contents
• CPC Class Codes: G11B 27/329 on a disc [VTOC]
• CPC Class Codes: H04N 9/797 for recording the signal in a plurality of channels, the bandwidth of each channel being less than the bandwidth of the signal H04N9/804, H04N9/81, H04N9/82 take precedence
• CPC Class Codes: H04N 9/8233 the additional signal being a character code signal

Abstract

A method of recording information on a video disk, includes the steps of: recording a video signal on the video disk; and recording table-of-contents data to control reproduction of the recorded video signal, on a plurality of frames in a lead-in area of the video disk. The table-of-contents data has a data structure, which is completed in each of the plurality of frames and is repeatedly identical in each of the plurality of frames adjacent to each other.

Claims

1. A method of recording and reproducing information on a video disk having a program area and a lead-in area, in which a plurality of frames are arranged in a circular direction, comprising the steps of:

recording a video signal on the program area of the video disk;

recording table-of-contents data, to control reproduction of the recorded video signal, on each of the plurality of frames in the lead-in area of the video disk, said table-of-contents data including at least chapter number information and frame number information for all chapter numbers and frame numbers of the recorded video signal in the program area and having a data structure which is completed in each of said plurality of frames in the lead-in area and the table-of-contents data is identically repeated in each of said plurality of frames adjacent to each other;

reading the table-of-contents data from one of the plurality of frames and storing the read table-of-contents data before reproducing the video signal; and

performing chapter number search and frame number search on the basis of the stored table-of-contents data, to reproduce the video signal from the program area.

2. A method as claimed in claim 1, wherein said video signal comprises a MUSE (Multiple Sub-Nyquist Sampling Encoding) signal, and said table-of-contents data is recorded in a video signal area of said MUSE signal.

3. A method as claimed in claim 2, wherein said table-of-contents data recording step comprises the step of recording the identical table-of-contents data repeatedly at predetermined intervals.

4. A method as claimed in claim 2, wherein said table-of-contents data has a block structure completed in each of said frames.

5. A method as claimed in claim 1, further comprises the step of recording a control code on an undefined area of the video disk in a MUSE (Multiple Sub-Nyquist Sampling Encoding) system.

6. A method as claimed in claim 5, wherein said undefined area of the video disk comprises a free line having a line number 564 in the MUSE signal.

7. A method as claimed in claim 5, wherein said control code comprises an identification code showing whether or not the table-of-contents data is recorded.

8. A method as claimed in claim 1, wherein said identical table-of-contents data is repeatedly recorded on more than thirty frames in said lead-in area.

9. A method as claimed in claim 1, wherein said video disk has front and back sides each having the program area, and, in the table-of-contents data recording step, the table-of-contents data for both the front and back sides is recorded, to permit direct access to the video signal recorded on the front and back sides.