# US 8,139,925 B2 · Recording medium, playback device, and integrated circuit

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- Number: US 8,139,925 B2
- Document ID: US8139925B2
- Status: Granted
- Kind: B2
- Application number: 12/708,616
- Filed: 2010-02-19
- Published: 2010-09-30
- Granted: 2012-03-20
- Earliest claimed: 2009-02-20
- Assignees: Panasonic Corporation
- Inventors: Taiji Sasaki; Hiroshi Yahata; Wataru Ikeda; Tomoki Ogawa
- Web page: https://patentgrep.com/patent/US8139925B2

## CPC

- H04N 9/8227: {the additional signal being at least another television signal}
- G11B 27/105: {of operating discs}
- H04N 13/161: Encoding, multiplexing or demultiplexing different image signal components (for multi-view video sequence encoding H04N19/597)
- H04N 13/178: Metadata, e.g. disparity information
- H04N 13/183: On-screen display [OSD] information, e.g. subtitles or menus
- H04N 13/189: Recording image signals; Reproducing recorded image signals
- H04N 13/194: Transmission of image signals
- H04N 19/597: specially adapted for multi-view video sequence encoding
- G11B 2020/10814: {involving specific measures to prevent a buffer underrun}
- G11B 2020/10916: {Seeking data on the record carrier for preparing an access to a specific address}
- G11B 2020/10925: {involving an inter-layer jump, i.e. changing from one recording layer to another}
- G11B 2220/2541: Blu-ray discs; Blue laser DVR discs
- H04N 5/765: Interface circuits between an apparatus for recording and another apparatus
- H04N 5/775: between a recording apparatus and a television receiver
- H04N 5/85: on discs or drums
- H04N 9/7921: {for more than one processing mode}
- H04N 9/8042: {involving data reduction}
- H04N 9/8063: {using time division multiplex of the PCM audio and PCM video signals}
- H04N 9/8205: {involving the multiplexing of an additional signal and the colour video signal}
- H04N 9/8216: {using time division multiplex}
- H04N 9/8244: {involving the use of subcodes}
- H04N 13/305: using lenticular lenses, e.g. arrangements of cylindrical lenses
- H04N 13/337: using polarisation multiplexing
- H04N 13/341: using temporal multiplexing
- H04N 13/361: Reproducing mixed stereoscopic images; Reproducing mixed monoscopic and stereoscopic images, e.g. a stereoscopic image overlay window on a monoscopic image background
- 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

Provided is a recording medium that enables seamless connection between preceding playitems which are stream data arranged prior to a position where a long jump occurs, such as a layer boundary, and succeeding playitems which are stream data arranged subsequent to the position where the long jump occurs. A block exclusively for 2D playback Ln2D is arranged succeeding a 3D extent block in which a depth map data block, a right-view data block, and a left-view data block are arranged in an interleaved manner. A 3D extent block including a block exclusively for 3D playback L3SS is arranged between the block exclusively for 2D playback and a long jump point LB. The block exclusively for 2D playback and the block exclusively for 3D playback are identical in content.

## Claims

### Claim 1

A non-transitory recording medium, comprising:
a main-view stream used for monoscopic video playback, a plurality of main-view data blocks formed from the main-view stream;
a sub-view stream used for stereoscopic video playback in combination with the main-view stream, a plurality of sub-view data blocks formed from the sub-view stream;
2D management information used in monoscopic video playback; and
3D management information used in stereoscopic video playback,
wherein a common data area includes one or more of the plurality of main-view data blocks and one or more of the plurality of sub-view data blocks,
wherein a 2D data area includes one or more of the plurality of main-view data blocks,
wherein a 3D data area includes one or more of the plurality of main-view data blocks and one or more of the plurality of sub-view data blocks,
wherein the 2D management information refers to the one or more of the plurality of main-view data blocks included in the common data area and the one or more of the plurality of main-view data blocks included in the 2D data area,
wherein the 3D management information refers to the one or more of the plurality of main-view data blocks included in the common data area and the one or more of the plurality of main-view data blocks included in the 3D data area,
wherein the 2D management information does not refer to the one or more of the plurality of main-view data blocks included in the 3D data area,
wherein the 3D management information does not refer to the one or more of the plurality of main-view data blocks included in the 2D data area,
wherein the 2D data area is accessed immediately before a long jump that occurs in monoscopic video playback,
wherein the 3D data area is accessed immediately before a long jump that occurs in stereoscopic video playback,
wherein the recording medium has the common data area, the 2D data area, and the 3D data area arranged continuously in this order, and
wherein the one or more of the plurality of main-view data blocks included in the 2D data area and the one or more of the plurality of main-view data blocks included in the 3D data area are identical in content.

### Claim 2 (depends on 1)

The recording medium of claim 1, wherein
a presentation time stamp of a last picture included in the 2D data area and a presentation time stamp of a last picture included in the 3D data area match each other.

### Claim 3 (depends on 2)

The recording medium of claim 2 having further recorded thereon playback path information that indicates a playback path using a plurality of playback sections, wherein
a seamless playback with a succeeding playback section is secured for each playback section defined for the 2D data area and each playback section defined for the 3D data area.

### Claim 4 (depends on 1)

The recording medium of claim 1, wherein
the 3D data area has a data size that does not cause buffer underflow to a playback device during the long jump that occurs in stereoscopic playback, and
the 2D data area has a data size which, when read immediately after the common data area, does not cause buffer underflow to the playback device during the long jump that occurs in monoscopic video playback.

### Claim 5 (depends on 1)

The recording medium of claim 1 comprising a plurality of recording layers, wherein
each long jump is a jump from one of the recording layers to another one of the recording layers.

### Claim 6 (depends on 1)

A playback device for playing back the non-transitory recording medium of claim 1, comprising:
reading unit operable to read, from the non-transitory recording medium, the 2D management information, and 3D management information,
wherein the playback device uses the 2D management information in monoscopic video playback, and
wherein the playback device uses 3D management information in stereoscopic video playback.