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

• US 6,671,457 B2
• Filed: 06/20/2002
• Issued: 12/30/2003
• 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:
  US10/175,379
• Publication Number:
  US 20020154895A1
• Time in Patent Office: 558 Days
• Field of Search: 386/95, 386/111, 386/112, 386/125, 386/126, 386/120, 386/121
• US Class Current: 386/241
• 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 reproducing method for reproducing a representative picture recorded on an information recording disc, said information recording disc including,

a managing file in which management information is stored, and

an audio file in which audio information is stored or a video file in which video information is stored, wherein,

said audio file or said video file is configured to store a plurality of video objects, said video objects including object units, each object unit 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,

said management information includes,

a plurality of program chain information including cell information representing cells, and

disc representative picture information for a disc representative picture,

at least one of said program chain information designates respective cell reproduction orders,

said cells refer to a part of one of said video objects,

said disc representative picture information includes information regarding a program chain number, a cell number, a picture point which describes a video object number representing recording contents of said information recording disc, and information regarding a time when said disc representative picture was made,

the information reproducing method comprising:

reading said management information;

referring to said disc representative picture information;

determining a position of said disc representative picture in said audio file or said video file, and

decoding said disc representation picture.

2. An information reproducing apparatus for reproducing a representative picture recorded on an information recording disc, said information recording disc including,

a managing file in which management information is stored, and

an audio file in which audio information is stored or a video file in which video information is stored, wherein,

said audio file or said video file is configured to store a plurality of video objects, said video objects including object units, each object unit 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,

said management information includes,

a plurality of program chain information including cell information representing cells, and

disc representative picture information for a disc representative picture,

at least one of said program chain information designates respective cell reproduction orders,

said cells refer to a part of one of said video objects,

said disc representative picture information includes information regarding a program chain number, a cell number, a picture point which describes a video object number representing recording contents of said information recording disc, and information regarding a time when said disc representative picture was made,

the information reproducing apparatus comprising:

a reproducer for reproducing said management information, for referring to said disc representative picture information, and for determining a position of said disc representative picture in said audio file or said video file; and

a decoder for decoding said disc representation picture.

3. An information recording method for recording a representative picture on an information recording disc, said information recording disc including,

a managing file in which management information is stored, and

an audio file in which audio information is stored or a video file in which video information is stored, wherein,

said audio file or said video file is configured to store a plurality of video objects, said video objects including object units, each object unit 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,

said management information includes,

a plurality of program chain information including cell information representing cells, and

disc representative picture information for a disc representative picture,

at least one of said program chain information designates respective cell reproduction orders,

said cells refer to a part of one of said video objects,

said disc representative picture information includes information regarding a program chain number, a cell number, a picture point which describes a video object number representing recording contents of said information recording disc, and information regarding a time when said disc representative picture was made,

the information recording method comprising:

determining a position of said disc representative picture in said audio file or said video file;

generating said disc representative picture information; and

recording said management information including said disc representative picture information.

4. An information recording apparatus for recording a representative picture on an information recording disc, said information recording disc including,

a managing file in which management information is stored, and

an audio file in which audio information is stored or a video file in which video information is stored, wherein,

said audio file or said video file is configured to store a plurality of video objects, said video objects including object units, each object unit 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,

said management information includes,

a plurality of program chain information including cell information representing cells, and

disc representative picture information for a disc representative picture,

at least one of said program chain information designates respective cell reproduction orders,

said cells refer to a part of one of said video objects,

said disc representative picture information includes information regarding a program chain number, a cell number, a picture point which describes a video object number representing recording contents of said information recording disc, and information regarding a time when said disc representative picture was made,

the information recording apparatus comprising:

a first processor for determining a position of said disc representative picture in said audio file or said video file, and for generating said disc representative picture information; and

a second processor for recording said management information including said disc representative picture information.