Video data reproducing apparatus, video data generating apparatus and recording medium

• US 8,401,368 B2
• Filed: 06/13/2006
• Issued: 03/19/2013
• Est. Priority Date: 06/20/2005
• Status: Active Grant

• Current Assignee: Sharp Kabushiki Kaisha (Hon Hai Precision Industry Co., Ltd.)
• Original Assignee: Sharp Kabushiki Kaisha (Hon Hai Precision Industry Co., Ltd.)
• Inventors: Watanabe, Shuichi, Kiyama, Jiro
• Primary Examiner(s): Hoffman, Brandon
• Assistant Examiner(s): BROWN, ANTHONY D
• Application Number:
  US11/920,937
• Publication Number:
  US 20090232479A1
• Time in Patent Office: 2,471 Days
• Field of Search: 386/248
• US Class Current: 386/248
• 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 27/3027 used signal is digitally coded
• CPC Class Codes: G11B 27/322 used signal is digitally coded
• CPC Class Codes: H04N 19/44 Decoders specially adapted therefor, e.g. video decoders which are asymmetric with respect to the encoder
• CPC Class Codes: H04N 19/46 Embedding additional information in the video signal during the compression process H04N19/517, H04N19/68, H04N19/70 take precedence
• CPC Class Codes: H04N 21/4316 for displaying supplemental content in a region of the screen, e.g. an advertisement in a separate window
• CPC Class Codes: H04N 21/4325 by playing back content from the storage medium reproduction of recorded television signals H04N5/76; reproduction of recorded television signals H04N9/79
• CPC Class Codes: H04N 21/440281 by altering the temporal resolution, e.g. by frame skipping television signal recording using magnetic recording on tape for reproducing at a rate different from the recording rate H04N5/783
• CPC Class Codes: H04N 5/45 Picture in picture , e.g. displaying simultaneously another television channel in a region of the screen
• CPC Class Codes: H04N 5/783 Adaptations for reproducing at a rate different from the recording rate
• CPC Class Codes: H04N 9/8227 the additional signal being at least another television signal

Abstract

To provide a video data reproducing apparatus or the like, which includes: a flag reader 101 for reading out a flag that designates a playback style during special playback, from video data; decoders 102 and 103 for decoding two sets of video data; a synthesizer 106 for combining the decoded videos to output the result; and a manager 109 for controlling the operations of decoders 102, 103 and synthesizer 106 in accordance with the flag value, and which manages the playback style in the special playback during picture-in-picture playing in accordance with the flag value, to thereby realize the playback style of the picture-in-picture video during the special playback that reflects the distributor'"'"'s intention.

Claims

1. A video data reproducing apparatus which receives a plurality of sets of video data and outputs a playback video that is obtained by combining a plurality of decoded videos obtained by decoding the plurality of sets of video data, comprising:

a decoding portion for decoding the plurality of sets of video data to obtain the plurality of decoded videos;

a synthesizing portion for combining the plurality of decoded videos to obtain the playback video;

an indication information reading portion for reading out indication information that designates a playback style of the playback video, from at least one of the plurality of sets of video data; and

a managing portion for managing the playback style by controlling at least one of the operations of the decoding portion and the synthesizing portion in accordance with the indication information read out by the indication information reading portion,

wherein the playback video is a video given in a picture-in-picture format, the playback style refers to a playback style during a special playback, and the indication information is information that indicates;

(a) whether or not a video in a child frame is played in the special mode, while a video in a parent frame is being played in the special mode;

(b) whether or not a video in the child frame is displayed, while a video in the parent frame is being played in the special mode;

or

(c) whether or not a video in the parent frame is played in the special mode, while a video in the child frame is being played in the special mode.

2. A video data reproducing apparatus which receives a plurality of sets of video data and management data regarding at least one of the plurality of sets of video data and outputs a playback video that is obtained by combining a plurality of decoded videos obtained by decoding the plurality of sets of video data, comprising:

a decoding portion for decoding the plurality of sets of video data to obtain the plurality of decoded videos;

a synthesizing portion for combining the plurality of decoded videos to obtain the playback video;

an indication information reading portion for reading out indication information that designates a playback style of the playback video, from the management data; and

a managing portion for managing the playback style by controlling at least one of the operations of the decoding portion and the synthesizing portion in accordance with the indication information read out by the indication information reading portion,

wherein the playback video is a video given in a picture-in-picture

format, the playback style refers to a playback style during a special playback, and the indication information is information that indicates;

(a) whether or not a video in a child frame is played in a special mode, while a video in a parent frame is being played in the special mode;

(b) whether or not a video in the child frame is displayed, while a video in the parent frame is being played in the special mode;

or

(c) whether or not a video in the parent frame is played in the special mode, while a video in the child frame is being played in the special mode.

3. A video data reproducing apparatus which receives a plurality of sets of video data and outputs a playback video that is obtained by combining a plurality of decoded videos obtained by decoding the plurality of sets of video data, comprising:

a decoding portion for decoding the plurality of sets of video data to obtain the plurality of decoded videos;

a synthesizing portion for combining the plurality of decoded videos to obtain the playback video;

an indication information reading portion for reading out indication information that designates a playback style of the playback video, from at least one of the plurality of sets of video data; and

a managing portion for managing the playback style by controlling at least one of the operations of the decoding portion and the synthesizing portion in accordance with the indication information read out by the indication information reading portion,

wherein the playback video is a video given in a double-frame format, the playback style refers to a playback style during a special playback, and the indication information is information that indicates;

(d) whether or not a video in one frame is played in the special mode, while a video in the other frame is being played in the special mode;

or

(e) whether or not a video in one frame is displayed, while a video in the other frame is being played in the special mode.

4. A video data reproducing apparatus which receives a plurality of sets of video data and management data regarding at least one of the plurality of sets of video data and outputs a playback video that is obtained by combining a plurality of decoded videos obtained by decoding the plurality of sets of video data, comprising:

a decoding portion for decoding the plurality of sets of video data to obtain the plurality of decoded videos;

a synthesizing portion for combining the plurality of decoded videos to obtain the playback video;

an indication information reading portion for reading out indication information that designates a playback style of the playback video, from the management data; and

a managing portion for managing the playback style by controlling at least one of the operations of the decoding portion and the synthesizing portion in accordance with the indication information read out by the indication information reading portion,

wherein the playback video is a video given in a double-frame display format, the playback style refers to a playback style during a special playback, and the indication information is information that indicates;

(d) whether or not a video in one frame is played in the special mode, while a video in the other frame is being played in the special mode;

or

(e) whether or not a video in one frame is displayed, while a video in the other frame is being played in the special mode.

5. A video data generating apparatus which is used to output a playback video by combining a plurality of decoded videos that are obtained from a plurality of sets of video data, comprising:

an encoding portion for encoding input video to obtain encoded video data; and

an indication information writing portion for writing indication information that designates a playback style of the playback video, into the video data,

wherein the playback video is a video given in a picture-in-picture

format, the playback style refers to a playback style during a special playback, and the indication information is information that indicates;

(a) whether or not a video in a child frame is played in a special mode, while a video in a parent frame is being played in the special mode;

(b) whether or not a video in the child frame is displayed, while a video in the parent frame is being played in the special mode;

or

(c) whether or not a video in the parent frame is played in the special mode, while a video in the child frame is being played in the special mode.

6. A video data generating apparatus which is used to output a playback video by combining a plurality of decoded videos that are obtained from a plurality of sets of video data, comprising:

an encoding portion for encoding input videos to obtain encoded video data;

a management data generating portion for generating management data regarding the video data; and

an indication information writing portion for writing indication information that designates a playback style of the playback video, into the management data generated by the management data generating portion,

wherein the playback video is a video given in a picture-in-picture format, the playback style refers to a playback style during a special playback, and the indication information is information that indicates;

(a) whether or not a video in a child frame is played in a special mode, while a video in a parent frame is being played in the special mode;

(b) whether or not a video in the child frame is displayed, while a video in the parent frame is being played in the special mode;

or

(c) whether or not a video in the parent frame is played in the special mode, while a video in the child frame is being played in the special mode.

10. The video data generating apparatus according to claim 6 or 8, further comprising a multiplexed data generating portion for generating multiplexed data in which the video data and the management data with the indication information written therein are multiplexed.

7. A video data generating apparatus which is used to output a playback video by combining a plurality of decoded videos that are obtained from a plurality of sets of video data, comprising:

an encoding portion for encoding input video to obtain encoded video data; and

an indication information writing portion for writing indication information that designates a playback style of the playback video, into the video data,

wherein the playback video is a video given in a double-frame display format, the playback style refers to a playback style during a special playback, and the indication information is information that indicates;

(d) whether or not a video in one frame is played in the special mode, while a video in the other frame is being played in the special mode;

or

(e) whether or not a video in one frame is displayed, while a video in the other frame is being played in the special mode.

8. A video data generating apparatus which is used to output a playback video by combining a plurality of decoded videos that are obtained from a plurality of sets of video data, comprising:

an encoding portion for encoding input videos to obtain encoded video data;

a management data generating portion for generating management data regarding the video data; and

an indication information writing portion for writing indication information that designates a playback style of the playback video, into the management data generated by the management data generating portion,

wherein the playback video is a video given in a double-frame display format, the playback style refers to a playback style during a special playback, and the indication information is information that indicates;

(d) whether or not a video in one frame is played in the special mode, while a video in the other frame is being played in the special mode;

or

(e) whether or not a video in one frame is displayed, while a video in the other frame is being played in the special mode.

9. A nontransitory computer-readable recording medium recorded with a plurality of sets of video data and management data regarding at least one of the plurality of sets of video data, wherein the management data includes indication information that, when a playback video in a picture-in-picture format is acquired by combining a plurality of decoded videos that are decoded from the plurality of sets of video data, indicates whether or not a video in a child frame is displayed while a video in a parent frame is being played in the special mode.