Digital video recording system and its recording medium

• US 7,076,153 B2
• Filed: 01/13/2000
• Issued: 07/11/2006
• Est. Priority Date: 01/14/1999
• Status: Expired due to Fees

• Current Assignee: Kabushiki Kaisha Toshiba (Toshiba Corporation)
• Original Assignee: Kabushiki Kaisha Toshiba (Toshiba Corporation)
• Inventors: Ando, Hideo, Kikuchi, Shinichi, Uyama, Kazuyuki
• Primary Examiner(s): NGUYEN, HUY THANH
• Application Number:
  US09/482,085
• Publication Number:
  US 20030133699A1
• Time in Patent Office: 2,371 Days
• Field of Search: 386/46, 386/95, 386/83, 386/111, 386/112, 386/124, 386/125, 386/126, 386/69, 386/68, 348/906, 370/386
• US Class Current: 386/211
• 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 27/005 Reproducing at a different information rate from the information rate of recording for television signals H04N5/783
• 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 27/329 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 9/79 Processing of colour television signals in connection with recording
• 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

In a DVD recording/playback system, a set top box STB receives an MPEG transport stream constituted by a plurality of transport packets, and a formatter extracts support information indicating if management information included in the transport packets includes predetermined items. A disc drive that records data on a recording medium having a management area and data area records the support information in the management area.

Claims

1. An information storage medium configured to store a data structure arranged to include an MPEG-encoded transport stream by a recording/reproducing apparatus, said data structure comprising:

an object data area configured to store stream data, the stream data including a plurality of data units each containing a plurality of transport packets including I-picture information of the MPEG-encoded transport stream, each serving as a unit of access, and each corresponding to a group-of-picture of the MPEG-encoded transport stream; and

a management area, different from the object area, configured to store management information, the management information including table information indicating a relationship between presentation timestamp information and a corresponding access point in the stream data, wherein

said table information of the management information comprises prescribed information of the I-picture information stored in the object data area, said prescribed information being configured to indicate a positional range of the I-picture information in the object data area, and

the recording/reproducing apparatus employs the management information to access stream data in accordance with the format of the medium.

2. A method of recording information on an information storage medium configured to store a data structure arranged to include an MPEG-encoded transport stream by a recording/reproducing apparatus, said data structure including,

an object data area configured to store stream data, the stream data including a plurality of data units each containing a plurality of transport packets including I-picture information of the MPEG-encoded transport stream, each serving as a unit of access, and each corresponding to a group-of-picture of the MPEG-encoded transport stream, and

a management area, different from the object data area, configured to store management information, the management information including table information indicating a relationship between presentation timestamp information and a corresponding access point in the stream data, wherein

said table information of the management information comprises prescribed information of the I-picture information stored in the object data area, said prescribed information being configured to indicate a positional range of the I-picture information in the object data area,

the method comprising:

recording the steam data into the data area; and

recording the management information into the management area.

3. A method of reproducing information from an information storage medium configured to store a data structure arranged to include an MPEG-encoded transport stream by a recording/reproducing apparatus, said data structure including,

an object data area storing stream data, the stream data including a plurality of data units each containing a plurality of transport packets including I-picture information of the MPEG-encoded transport stream, each serving as a unit of access, and each corresponding to a group-of-picture of the MPEG-encoded transport stream, and

a management area, different from the object area, storing management information, the management information including table information indicating a relationship between presentation timestamp information and a corresponding access point in the stream data, wherein

said table information of the management information comprises prescribed information of the I-picture information stored in the object data area, said prescribed information being configured to indicate a positional range of the I-picture information in the object data area,

the method comprising:

reproducing the management information from the management area; and

reproducing the steam data from the data area.

4. An apparatus for reproducing information from an information storage medium configured to store a data structure arranged to include an MPEG-encoded transport stream by a recording/reproducing apparatus, said data structure including,

an object data area storing stream data, the stream data including a plurality of data units each containing a plurality of transport packets including I-picture information of the MPEG-encoded transport stream, each serving as a unit of access, and each corresponding to a group-of-picture of the MPEG-encoded transport stream, and

a management area, different from the object area, storing management information, the management information including table information indicating a relationship between presentation timestamp information and a corresponding access point in the stream data, wherein

said table information of the management information comprises prescribed information of the I-picture information stored in the object data area, said prescribed information being configured to indicate a positional range of the I-picture information in the object data area,

the apparatus comprising:

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

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