# US 6,724,979 B2 · System of sharing objects having a plurality of contents

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- Number: US 6,724,979 B2
- Document ID: US6724979B2
- Status: Granted
- Kind: B2
- Application number: 09/789,516
- Filed: 2001-02-22
- Published: 2001-07-26
- Granted: 2004-04-20
- Earliest claimed: 1997-12-25
- Assignees: Kabushiki Kaisha Toshiba
- Inventors: Hitoshi Otomo; Shigeru Todokoro; Hideki Mimura
- Web page: https://patentgrep.com/patent/US6724979B2

## CPC

- H04N 9/8042: {involving data reduction}
- G11B 27/034: on discs (G11B27/036, G11B27/038 take precedence)
- G11B 27/105: {of operating discs}
- G11B 27/329: {on a disc [VTOC]}
- G11B 27/34: Indicating arrangements {(indicating means incorporated in magazine or cassette G11B23/046 and G11B23/0875; indicating measured values in general G01D)}
- G11B 2220/211: Discs having both read-only and rewritable or recordable areas containing application data; Partial ROM media
- G11B 2220/216: Rewritable discs
- G11B 2220/218: Write-once discs
- G11B 2220/235: Multilayer discs, i.e. multiple recording layers accessed from the same side
- G11B 2220/2545: CDs
- G11B 2220/2562: DVDs [digital versatile discs]; Digital video discs; MMCDs; HDCDs
- G11B 2220/2575: DVD-RAMs
- G11B 2220/2583: wherein two standards are used on a single disc, e.g. one DVD section and one CD section
- H04N 5/85: on discs or drums
- H04N 9/8063: {using time division multiplex of the PCM audio and PCM video signals}
- H04N 9/8227: {the additional signal being at least another television signal}
- H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION
- G11B: INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER (recording measured values in a way that does not require playback through a transducer G01D9/00; recording or playback apparatus using mechanically marked tape, e.g. punched paper tape, or using unit records, e.g. punched or magnetically marked cards G06K; transferring data from one type of record carrier to another G06K1/18; circuits for coupling output of reproducer to radio receiver H04B1/20; gramophone pick-ups or like acoustic electromechanical transducers or circuits therefor H04R)

## Abstract

In order to use video contents created according to DVD video in DVD audio, audio and video sub-directories are located under a root directory. The video sub-directory includes video contents and their management information. The audio sub-directory includes audio contents and their management information. The video management information can only access the video contents. However, the audio management information can access not only the audio contents but also the video contents.

## Claims

### Claim 1

A digital information recording medium configured to have data recorded thereon and data reproduced therefrom by an information recording or reproducing apparatus, comprising:
an audio management block configured to store audio management information; and
an audio data area configured to store at least one audio title set;
said at least one audio title set includes audio title set information containing an audio title set information management table and at least one audio title set program chain information, said audio title set information being different from said audio management information,
said audio title set information management table includes at least one mix down coefficient, said at least one mix down coefficient describing a coefficient to mix down audio data from multichannel to 2-channel,
said audio title set program chain information includes at least one program information, and said at least one program information includes program content information, said program content information including information which describes a coefficient table number of said at least one mix down coefficient, wherein
at least one of the respective information recording or reproducing apparatus' records data or reproduces data from the medium in accordance with the configuration of the medium.

### Claim 2

A method of recording audio information on a digital information recording medium which comprises,
an audio management block configured to store audio management information, and
an audio data area configured to store at least one audio title set,
wherein said at least one audio title set includes audio title set information containing an audio title set information management table and at least one audio title set program chain information, said audio title set information being different from said audio management information,
said audio title set information management table includes at least one mix down coefficient, said at least one mix down coefficient describing a coefficient to mix down audio data from multichannel to 2-channel,
said audio title set program chain information includes at least one program information, and said at least one program information includes program content information, said program content information including information which describes a coefficient table number of said at least one mix down coefficient, said method comprising:
recording said one or more audio title sets on the audio data area; and
recording said audio management information on the audio management block.

### Claim 3

A method of reproducing audio information from a digital information recording medium which comprises,
an audio management block configured to store audio management information, and
an audio data area configured to store at least one audio title set,
wherein said at least one audio title set includes audio title set information containing an audio title set information management table and at least one audio title set program chain information, said audio title set information being different from said audio management information,
said audio title set information management table includes at least one mix down coefficient, said at least one down mix coefficient describing a coefficient to mix down audio data from multichannel to 2-channel,
said audio title set program chain information includes at least one program information, and said at least one program information includes program content information, said program content information including information which describes a coefficient table number of said at least one mix down coefficient, said method comprising:
reproducing said audio management information from the audio management block; and
reproducing said one or more audio title sets from the audio data area.

### Claim 4

A player for reproducing audio information from a digital information recording medium which comprises,
an audio management block configured to store audio management information, and
an audio data area configured to store at least one audio title set,
wherein said at least one audio title set includes audio title set information containing an audio title set information management table and at least one audio title set program chain information, said audio title set information being different from said audio management information,
said audio title set information management table includes at least one mix down coefficient, said at least one mix down coefficient describing a coefficient to mix down audio data from multichannel to 2-channel,
said audio title set program chain information includes at least one program information, and said at least one program information includes program content information, said at least one program content information including information which describes a coefficient table number of said at least one mix down coefficient, said player comprising:
a first reproducer configured to reproduce said audio management information from the audio management block; and
a second reproducer configured to reproduce said one or more audio title sets from the audio data area.

### Claim 5 (depends on 1)

The information recording medium according to claim 1, wherein said audio title set program chain information includes information of a cell type that is configured to include predetermined usage data indicating a spotlight part.

### Claim 6 (depends on 2)

The method according to claim 2, wherein said audio title set program chain information includes information of a cell type that is configured to include predetermined usage data indicating a spotlight part.

### Claim 7 (depends on 3)

The method according to claim 3, wherein said audio title set program chain information includes information of a cell type that is configured to include predetermined usage data indicating a spotlight part.

### Claim 8 (depends on 4)

The player according to claim 4, wherein said audio title set program chain information includes information of a cell type that is configured to include predetermined usage data indicating a spotlight part.