Reception/reproduction device, transmission device, reception/reproduction method and transmission method

• US 9,456,194 B2
• Filed: 08/03/2012
• Issued: 09/27/2016
• Est. Priority Date: 08/05/2011
• Status: Active Grant

• Current Assignee: Panasonic Corporation (Panasonic Holdings Corporation)
• Original Assignee: Panasonic Corporation (Panasonic Holdings Corporation)
• Inventors: Mochinaga, Kazuhiro, Yahata, Hiroshi, Uesaka, Yasushi, Ogawa, Tomoki
• Primary Examiner(s): Le, Rong
• Application Number:
  US14/131,327
• Publication Number:
  US 20140150045A1
• Time in Patent Office: 1,516 Days
• US Class Current: 1/1
• CPC Class Codes: H04N 13/122 Improving the 3D impression of stereoscopic images by modifying image signal contents, e.g. by filtering or adding monoscopic depth cues H04N13/128 takes precedence
• CPC Class Codes: H04N 13/158 Switching image signals
• CPC Class Codes: H04N 13/178 Metadata, e.g. disparity information
• CPC Class Codes: H04N 13/275 from 3D object models, e.g. computer-generated stereoscopic image signals
• CPC Class Codes: H04N 13/282 for generating image signals corresponding to three or more geometrical viewpoints, e.g. multi-view systems
• CPC Class Codes: H04N 13/359 Switching between monoscopic and stereoscopic modes
• CPC Class Codes: H04N 21/23418 involving operations for analysing video streams, e.g. detecting features or characteristics television picture signal circuitry for scene change detection H04N5/147; filtering for image enhancement G06T5/00; methods or arrangements for recognising scenes G06V20/00; arrangements characterised by components specially adapted for monitoring, identification or recognition of video in broadcast systems H04H60/59
• CPC Class Codes: H04N 21/2362 Generation or processing of Service Information [SI]
• CPC Class Codes: H04N 21/42204 User interfaces specially adapted for controlling a client device through a remote control device; Remote control devices therefor constructive details of casings for the remote control device H01H9/0235; user interfaces for controlling a tuning device of a television receiver through a remote control H03J9/00; remote control of peripheral devices connected to a television receiver through the remote control device of the television receiver H04B1/205
• CPC Class Codes: H04N 21/4221 Dedicated function buttons, e.g. for the control of an EPG, subtitles, aspect ratio, picture-in-picture or teletext
• CPC Class Codes: H04N 21/44008 involving operations for analysing video streams, e.g. detecting features or characteristics in the video stream arrangements characterised by components specially adapted for monitoring, identification or recognition of video in broadcast systems H04H60/59
• CPC Class Codes: H04N 21/4854 for modifying image parameters, e.g. image brightness, contrast
• CPC Class Codes: H04N 21/8146 involving graphical data, e.g. 3D object, 2D graphics
• CPC Class Codes: H04N 21/816 involving special video data, e.g 3D video
• CPC Class Codes: H04N 21/8456 by decomposing the content in the time domain, e.g. in time segments

Abstract

To provide a reception and playback device capable of playing back a program in viewer'"'"'s desired display mode. The reception and playback device receives, with respect to a program that is currently played back in a first display mode, a switching instruction to switch from the first display mode to a second display mode, receives switching permission information indicating whether switching of a playback target stream of the program is permissible from a first stream to a second stream respectively corresponding to the first display mode and the second display mode, when receiving the switching instruction, judges whether switching of the display mode is permissible from the first display mode to the second display mode based on the switching permission information, when judging affirmatively, switches from the first stream to the second stream to perform playback using the second stream, and when judging negatively, performs playback using the first stream.

Claims

1. A reception and playback device comprising:

a processor; and

a non-transitory computer-readable memory having stored thereon executable instructions, which when executed by the processor, cause the reception and playback device to;

receive, with respect to a program that is currently played back in a first display mode, a switching instruction to switch a display mode from the first display mode to a second display mode;

receive switching permission information indicating whether switching of a playback target stream of the program is permissible from a first stream corresponding to the first display mode to a second stream corresponding to the second display mode;

judge, when the switching instruction is received, whether switching of the display mode is permissible from the first display mode to the second display mode based on the switching permission information; and

when the judgment is affirmative, switch the playback target stream from the first stream to the second stream to perform playback using the second stream, and when judgment is negative, perform playback using the first stream, wherein

the program is composed of a plurality of scenes,

the switching permission information defines, as a switchable scene, at least one of the plurality of scenes that is the same, except any difference between the first display mode and the second display mode, between the first stream and the second stream in terms of contents, and

with respect to the program that is currently played back in the first display mode, when the second stream exists and a scene that is played back is not the switchable scene defined by the switching permission information, the judgment is negative.

2. The reception and playback device of claim 1, wherein

the first stream is an MPEG2-TS (Moving Picture Experts Group 2-Transport Stream) compliant data stream,

the switching permission information is included in an EIT (Event Information Table) corresponding to the first stream, and

wherein the executable instructions, when executed by the processor, cause the reception and playback device to further acquire the switching permission information from the EIT to judge whether switching of the display mode is permissible.

3. The reception and playback device of claim 2, wherein

the first display mode is a 3D display mode, and the second display mode is a 2D display mode,

the first stream is a 3D video stream, and the second stream is a 2D video stream,

the executable instructions, when executed by the processor, cause the reception and playback device to further:

when the judgment is affirmative, perform playback using the 2D video stream, and

when the judgment is negative, perform playback for 2D display using the 3D video stream.

4. The reception and playback device of claim 2, wherein

the first display mode is a 2D display mode, and the second display mode is a 3D display mode,

the first stream is a 2D video stream, and the second stream is a 3D video stream,

the executable instructions, when executed by the processor, cause the reception and playback device to further:

when the judgment is affirmative, perform playback using the 3D video stream, and

when the judgment is negative, perform playback for 3D display using the 2D video stream.

5. The reception and playback device of claim 1, wherein

the first display mode is a display mode with a first resolution, and the second display mode is a display mode with a second resolution that is lower than the first resolution,

the executable instructions, when executed by the processor, cause the reception and playback device to further:

when the judgment is affirmative, perform playback using the second stream corresponding to the second resolution, and

when the judgment is negative, perform playback using the first stream corresponding to the first resolution.

6. The reception and playback device of claim 5,

wherein the executable instructions, when executed by the processor, cause the reception and playback device to further:

record the program, and

when recording of images of the program with the first resolution is impossible and the judgment is affirmative, record the images of the program with the second resolution.

7. The reception and playback device of claim 1, wherein

the first display mode is a display mode with a first resolution, and the second display mode is a display mode with a second resolution that is higher than the first resolution,

the executable instructions, when executed by the processor, cause the reception and playback device to further:

when the judgment is affirmative, perform playback using the second stream corresponding to the second resolution, and

when the judgment is negative, perform playback using the first stream corresponding to the first resolution.

8. The reception and playback device of claim 1, wherein

the switching permission information includes a piece of section information indicating a section of the switchable scene,

the executable instructions, when executed by the processor, cause the reception and playback device to further:

judge whether a reception time of the switching instruction belongs to the section indicated by the piece of section information included in the switching permission information,

judge, when judging that the reception time belongs to the indicated section, that switching of the display mode is permissible, and

judge, when judging that the reception time does not belong to the indicated section, that switching of the display mode is impermissible.

9. A transmission device comprising:

a processor; and

a non-transitory computer-readable memory having stored thereon executable instructions, which when executed by the processor, cause the transmission device to;

store therein switching permission information indicating, with respect to a playback target stream of a program to be played back by a reception and playback device, whether switching of the playback target stream is permissible from a first stream corresponding to a first display mode to a second stream corresponding to a second display mode; and

transmit the switching permission information, the first stream, and the second stream, wherein

the program is composed of a plurality of scenes, and

the switching permission information defines, as a switchable scene, at least one of the plurality of scenes that is the same, except any difference between the first display mode and the second display mode, between the first stream and the second stream in terms of contents.

10. The transmission device of claim 9, wherein

the first stream is an MPEG2-TS (Moving Picture Experts Group 2-Transport Stream) compliant data stream,

the executable instructions, when executed by the processor, cause the reception and playback device to further:

store therein an EIT (Event Information Table) corresponding to the first stream and including the switching permission information, and

transmit a data stream into which at least the first stream and the EIT are multiplexed.

11. A reception and playback method for use in a reception and playback device, the reception and playback method comprising:

receiving, with respect to a program that is currently played back in a first display mode, a switching instruction to switch a display mode from the first display mode to a second display mode;

receiving switching permission information indicating whether switching of a playback target stream of the program is permissible from a first stream corresponding to the first display mode to a second stream corresponding to the second display mode;

judging, when the switching instruction is received, whether switching of the display mode is permissible from the first display mode to the second display mode based on the switching permission information; and

switching, when the judging judges affirmatively, the playback target stream from the first stream to the second stream to perform playback using the second stream, and when the judging judges negatively, performing playback using the first stream, wherein

the program is composed of a plurality of scenes,

the switching permission information defines, as a switchable scene, at least one of the plurality of scenes that is the same, except any difference between the first display mode and the second display mode, between the first stream and the second stream in terms of contents, and

with respect to the program that is currently played back in the first display mode, when the second stream exists and a scene that is played back is not the switchable scene defined by the switching permission information, the judging judges negatively.

12. A transmission method for use in a transmission device, the transmission method comprising:

storing switching permission information indicating, with respect to a playback target stream of a program to be played back by a reception and playback device, whether switching of the playback target stream is permissible from a first stream corresponding to a first display mode to a second stream corresponding to a second display mode; and

transmitting the switching permission information, the first stream, and the second stream, wherein

the program is composed of a plurality of scenes, and

the switching permission information defines, as a switchable scene, at least one of the plurality of scenes that is the same, except any difference between the first display mode and the second display mode, between the first stream and the second stream in terms of contents.