Recording method of stream data and data structure thereof

• US 7,373,075 B1
• Filed: 09/20/2000
• Issued: 05/13/2008
• Est. Priority Date: 03/17/1999
• Status: Expired due to Fees

• Current Assignee: Kabushiki Kaisha Toshiba (Toshiba Corporation)
• Original Assignee: Kabushiki Kaisha Toshiba (Toshiba Corporation)
• Inventors: Ito, Yuuji, Ando, Hideo, Kikuchi, Shinichi, Uyama, Kazuyuki
• Primary Examiner(s): Boccio; Vincent F.
• Application Number:
  US09/666,129
• Time in Patent Office: 2,792 Days
• Field of Search: 386/46, 386/65, 386/95, 386/68, 386/70, 386125-126, 386109-112, 386/94
• US Class Current: 386/334
• CPC Class Codes: G11B 2220/216 Rewritable discs
• 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 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 27/329 on a disc [VTOC]
• CPC Class Codes: H04N 5/775 between a recording apparatus and a television receiver
• 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 medium which has a data area for recording stream data (SOB) using stream packets each of which includes an application packet area, and a management area for recording management information that pertains to the stream data (SOB) is used. The stream data (SOB) are distributed and recorded in the application packet areas in a plurality of the stream PES packets. When the start portion of the application packet area included in the first stream PES packet in the stream data (SOB) does not match the first byte of a time stamp appended to the first application packet in the application packet area, then information is recorded so that they match.

Claims

1. An information medium having stored thereon stream data of MPEG-TS in accordance with a hierarchical data structure, comprising:

a data area configured to store a stream object corresponding to the stream data, the stream object including one or more stream data units, and the one or more stream data units including one or more pairs of a time-stamp and a transport stream packet; and

a management area, located at an area other than said data area, configured to store management information of the stream object, wherein,

said management information, which is configured to control when the stream object is to be displayed or reproduced, includes an area configured to store first copy management information of the stream object,

the at least one stream data unit stores a second data unit including information of the one or more pairs of said time-stamp and said transport stream packet,

said second data unit, stored in at least one of the stream data units, includes a header containing time-related information with respect to the transport stream packet,

said second data unit, stored in the at least one stream data unit, includes second copy management information indicating a copyright state of the information of the transport stream packet,

a copyright information of the stream object is configured to be managed by said first and second copy management information, and

said management area includes information indicating presentation timestamp information items and a corresponding point in the stream data, wherein recording locations of the presentation timestamp information items are configured to be different from those of the transport packets included in said stream blocks.

2. An apparatus for reproducing information from an information medium as defined in claim 1, said apparatus comprising:

a first reproducer configured to reproduce the management information from the management area; and

a second reproducer configured to reproduce the stream data from the data area.

3. A method of recording information on an information medium configured to have a data structure comprising a data area configured to store a stream object corresponding to the stream data, the stream object including one or more stream data units, and the one or more stream data units including one or more pairs of a time-stamp and a transport stream packet and a management area, located at an area other than said data area, configured to store management information of the stream object, wherein,

said management information, which is configured to control when the stream object is to be displayed or reproduced, includes an area configured to store first copy management information of the stream object,

the at least one stream data unit stores a second data unit including information of the one or more pairs of said time-stamp and said transport stream packet,

said second data unit, stored in at least one of the stream data units, includes a header containing time-related information with respect to the transport stream packet,

said second data unit, stored in the at least one stream data unit, includes second copy management information indicating a copyright state of the information of the transport stream packet,

a copyright information of the stream object is configured to be managed by said first and second copy management information, and

said management area includes information indicating presentation timestamp information items and a corresponding point in the stream data, wherein recording locations of the presentation timestamp information items are configured to be different from those of the transport packets included in said stream blocks,

said method comprising:

recording the stream data on the data area; and

recording the management information on the management area.

4. A method of reproducing information from an information medium configured to have a data structure comprising a data area configured to store a stream object corresponding to the stream data, the stream object including one or more stream data units, and the one or more stream data units including one or more pairs of a time-stamp and a transport stream packet and a management area, located at an area other than said data area, configured to store management information of the stream object, wherein,

said management information, which is configured to control when the stream object is to be displayed or reproduced, includes an area configured to store first copy management information of the stream object,

the at least one stream data unit stores a second data unit including information of the one or more pairs of said time-stamp and said transport stream packet,

said second data unit, stored in at least one of the stream data units, includes a header containing time-related information with respect to the transport stream packet,

said second data unit, stored in the at least one stream data unit, includes second copy management information indicating a copyright state of the information of the transport stream packet,

a copyright information of the stream object is configured to be managed by said first and second copy management information, and

said management area includes information indicating presentation timestamp information items and a corresponding point in the stream data, wherein recording locations of the presentation timestamp information items are configured to be different from those of the transport packets included in said stream blocks,

said method comprising:

reproducing the management information from the management area; and

reproducing the stream data from the data area.