Information recording medium, method for recording information, and method for reproduction information

• US 6,385,389 B1
• Filed: 01/20/1999
• Issued: 05/07/2002
• Est. Priority Date: 01/21/1998
• Status: Expired due to Term

• Current Assignee: Kabushiki Kaisha Toshiba (Toshiba Corporation)
• Original Assignee: Kabushiki Kaisha Toshiba (Toshiba Corporation)
• Inventors: Ando, Hideo, Maruyama, Koji, Kikuchi, Shinichi, Taira, Kazuhiko, Ishizawa, Yoshiyuki
• Primary Examiner(s): NGUYEN, HUY THANH
• Application Number:
  US09/233,027
• Time in Patent Office: 1,203 Days
• Field of Search: H04/N.592, 386/46, 386/95, 386/111, 386/112, 386/124, 386/121, 386/125, 386/126, 386/98
• US Class Current: 386/248
• CPC Class Codes: G11B 20/00086 Circuits for prevention of unauthorised reproduction or copying, e.g. piracy indicating unauthorised use of record carriers in general G11B23/28; scrambling for television signal recording H04N5/913; network architectures or network protocols for network security H04L63/00; cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
• CPC Class Codes: G11B 2220/211 Discs having both read-only and rewritable or recordable areas containing application data; Partial ROM media
• CPC Class Codes: G11B 2220/216 Rewritable discs
• CPC Class Codes: G11B 2220/218 Write-once discs
• CPC Class Codes: G11B 2220/237 having exactly two recording layers
• CPC Class Codes: G11B 2220/2516 Hard disks
• CPC Class Codes: G11B 2220/2562 DVDs [digital versatile discs]; Digital video discs; MMCDs; HDCDs
• CPC Class Codes: G11B 2220/2575 DVD-RAMs
• CPC Class Codes: G11B 2220/455 said record carriers being in one device and being used as primary and secondary/backup media, e.g. HDD-DVD combo device, or as source and target media, e.g. PC and portable player
• CPC Class Codes: G11B 2220/90 Tape-like record carriers
• CPC Class Codes: G11B 27/034 on discs G11B27/036, G11B27/038 take precedence
• CPC Class Codes: G11B 27/036 Insert-editing
• CPC Class Codes: G11B 27/105 of operating discs
• CPC Class Codes: G11B 27/3027 used signal is digitally coded
• CPC Class Codes: G11B 27/329 on a disc [VTOC]
• CPC Class Codes: G11B 27/34 Indicating arrangements indicating means incorporated in magazine or cassette G11B23/046 and G11B23/0875; indicating measured values in general G01D
• CPC Class Codes: G11B 27/36 Monitoring, i.e. supervising the progress of recording or reproducing for digital recording G11B20/00 and s.gr.; for monitoring, testing or measuring of TV recorders of the type covered by H04N5/76 and subgroups, see H04N17/06
• CPC Class Codes: H04N 5/85 on discs or drums
• CPC Class Codes: H04N 9/8042 involving data reduction
• CPC Class Codes: H04N 9/8063 using time division multiplex of the PCM audio and PCM video signals
• CPC Class Codes: H04N 9/8205 : involving the multiplexing of an additional signal and the colour video signal
• CPC Class Codes: H04N 9/8227 : the additional signal being at least another television signal

Abstract

An information recording medium includes a first area (DA2) for storing picture data for forming a plurality of pictures, a second area (DA21) which is included in the first area and stores control data of the picture data, and a third area (INFO1) which is included in the second area and stores specifying data for specifying the storage position of representative picture data for forming a representative picture in the plurality of pictures.

Claims

1. An information recording method for recording data on an information recording disc which includes a first area of a managing file in which management information is stored, and which includes a second area of an audio data or video data in which video information is stored, the information recording method comprising the steps of:

(a) recording at least one object in the audio data or video data on the information recording disc, wherein said object includes object units and said object units each include at least one of a video pack in which video data is recorded and an audio pack in which audio data is recorded; and

(b) recording management information in the managing file, wherein said management information includes program chain information, cells, and disc representative picture information for one disc representative picture to identify the disc, said program chain information designates the reproduction order of said cells, said cells designate the reproduction order of the object units, and said disc representative picture information includes a program chain number, cell number, picture point as a presentation time of a picture representing the recording contents of the disc in the object unit, and time when the disc representative picture was made, said disc representative picture is any picture included in a program.

2. An information recording method according to claim 1, wherein the video object units further include sub-picture packs and step (b) further includes the step of recording sub-picture information in each of the sub-picture packs.

6. An information recording method according to claims 1, wherein the number of the representative picture is one to one with said program.

3. An information reproducing method for reproducing one disc representative picture recorded on an information recording disc which represents the recording contents of the disk, wherein the information recording disc includes a first area of a managing file in which management information is stored and includes a second area of an audio data or video data in which video information is stored, the information recording disc having at least one object recorded in the audio data or video data and management information recorded in the managing file, said object including object units, said object units each including at least one of a video pack in which video data is recorded and an audio pack in which audio data is recorded, and said management information including program chain information, cells and disc representative picture information for said one disc representative picture, said program chain information designating a reproduction order of the cells, said cells designating a reproduction order of the object units, said disc representative picture information including information regarding a program chain number, cell number, picture point as a presentation time of a corresponding disc representative picture in the object unit, and time when the disc representative picture was made, said disc representative picture is any picture included in a program, the information reproducing method comprising:

a first step of reading the management information, referring to the disc representative picture information, and determining a position of the disc representative picture in the audio data or video data;

a second step of reading the disc representative picture based on the position determined by the first step; and

a third step of decoding the disc representative picture read by the second step.

7. An information reproducing method according to claims 3, wherein the number of the representative picture is one to one with said program.

4. An information recording apparatus for recording data on an information recording disc which includes a first area of a managing file in which management information is stored, and which includes a second area of an audio data or video data in which video information is stored, the information recording apparatus comprising:

means for recording at least one object in the audio data or video data on the information recording disc, wherein said object includes object units and said video object units each include at least one of a video pack in which video data is recorded and an audio pack in which audio data is recorded; and

means for recording management information in the managing file, wherein said management information includes program chain information, cells, and disc representative picture information for one disc representative picture to identify the disc, said program chain information designates a reproduction order of said cells, said cells designate a reproduction order of the object units, said disc representative picture information includes information regarding a program chain number, cell number, picture point as a presentation time of a picture representing the recording contents of the disc in the object unit, and time when the disc representative picture was made, said representative picture is any picture included in a program.

8. An information recording apparatus according to claim 4, wherein the number of the representative picture is one to one with said program.

5. An information reproducing apparatus for reproducing one disc representative picture recorded on an information recording disc which represents the recording contents of the disk, wherein the information recording disc includes a first area of a managing file in which management information is stored and includes a second area of an audio data or video data in which video information is stored, the information recording disc having at least one object recorded in the audio data or video data and management information recorded in the managing file, said object including object units, said object units each including at least one of a video pack in which video data is recorded and an audio pack in which audio data is recorded, and said management information including program chain information, cells and disc representative picture information for said one disc representative picture, said program chain information designating a reproduction order of the cells, said cells designating a reproduction order of the object units, said representative picture information including information regarding a program chain number, cell number, picture point as a presentation time of a picture representing the recording contents of the disc in the object unit and time when the disc representative picture was made, said representative picture is any picture included in program, the information reproducing apparatus comprising:

first means for reading the management information, referring to the disc representative picture information, and determining a position of the disc representative picture in the audio data or video data;

second means for reading the disc representative picture based on the position determined by the first mean; and

third means for decoding the disc representative picture read by the second means.

9. An information reproducing apparatus according to claim 5, wherein the number of the representative picture is one to one with said program.