US2007053665A1PendingUtilityA1

Apparatus and method for image coding and decoding

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Assignee: SONY CORPPriority: Jun 2, 2000Filed: Nov 6, 2006Published: Mar 8, 2007
Est. expiryJun 2, 2020(expired)· nominal 20-yr term from priority
Inventors:Motoki Kato
H04N 21/6377H04N 19/188H04N 21/4348H04N 9/8233H04N 9/8227H04N 19/40H04N 21/4341H04N 21/440263H04N 19/162H04N 19/59H04N 19/146H04N 21/6373H04N 21/6332H04N 19/70H04N 19/115H04N 21/23614H04N 19/46H04N 9/8205H04N 21/4334H04N 7/0122H04N 5/781H04N 21/40H04N 9/8042H04N 19/172H04N 21/654H04N 21/658H04N 19/149H04N 19/44H04N 19/177H04N 5/91
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Claims

Abstract

An image coding apparatus is provided. A selector receives a multiplexed transport stream that includes multimedia coding data. A demultiplexer separates a video stream from the multiplexed transport stream. A decoder reproduces the video stream as decoded video data. A coding generator receives multimedia information associated with the multimedia coding data and generates display control information. The display control information includes a mismatch flag which indicates whether a display mismatch condition exists between the video data and multimedia coding data. An output unit outputs the decoded video data, the multimedia coding data and the mismatch flag.

Claims

exact text as granted — not AI-modified
1 . An image coding apparatus, comprising: 
 a selector operable to receive a multiplexed transport stream that includes multimedia coding data;    a demultiplexer operable to separate a video stream from the multiplexed transport stream;    a decoder operable to reproduce the separated video stream as decoded video data;    a coding generator operable to receive multimedia information associated with the multimedia coding data and to generate display control information, the display control information including a mismatch flag which indicates whether a display mismatch condition exists between the video data and multimedia coding data; and    an output unit operable to output the decoded video data, the multimedia coding data and the mismatch flag.    
     
     
         2 . The image coding apparatus of  claim 1 , further comprising an encoder which is coupled to said decoder and which is operable to reproduce the video stream based on the multimedia information associated with the multimedia coding data and the video data.  
     
     
         3 . The image coding apparatus of  claim 1 , wherein said output unit comprises a writing unit operable to record the decoded video data, the multimedia coding data and the mismatch flag onto a recording medium.  
     
     
         4 . The image coding apparatus of  claim 1 , further comprising a coding controller which is coupled between said selector and said coding generator and which is operable to generate the multimedia information associated with the multimedia coding data.  
     
     
         5 . The image coding apparatus of  claim 1 , further comprising a data analyzer which is coupled between said selector and said coding controller and which is operable to detect at least a bit rate associated with the video stream.  
     
     
         6 . The image coding apparatus of  claim 1 , wherein the display control information includes a re-encode flag which indicates whether the video data is re-encoded.  
     
     
         7 . The image coding apparatus of  claim 1 , wherein the display control information includes a frame size change flag which indicates whether a size of a picture frame associated with the video data has been changed.  
     
     
         8 . An image coding method, comprising: 
 receiving a multiplexed transport stream that includes multimedia coding data;    separating a video stream from the multiplexed transport stream;    reproducing the separated video stream as decoded video data;    receiving multimedia information associated with the multimedia coding data;    generating display control information that includes a mismatch flag which indicates whether a display mismatch condition exists between the video data and multimedia coding data; and    outputting the decoded video data, the multimedia coding data and the mismatch flag.    
     
     
         9 . The image coding method of  claim 8 , further comprising: reproducing the video stream based on the multimedia information associated with the multimedia coding data and the video data.  
     
     
         10 . The image coding method of  claim 8 , wherein said outputting step includes writing the decoded video data, the multimedia coding data and the mismatch flag onto a recording medium.  
     
     
         11 . The image coding method of  claim 8 , further comprising: generating the multimedia information associated with the multimedia coding data.  
     
     
         12 . The image coding method of  claim 8 , further comprising: detecting at least a bit rate associated with the video stream.  
     
     
         13 . The image coding method of  claim 8 , wherein the display control information includes a re-encode flag which indicates whether the video data is re-encoded.  
     
     
         14 . The image coding method of  claim 8 , wherein the display control information includes a frame size change flag which indicates whether a size of a picture frame associated with the video data has been changed.  
     
     
         15 . A computer-readable medium having recorded instructions for carrying an image coding method, said method comprising: 
 receiving a multiplexed transport stream that includes multimedia coding data;    separating a video stream from the multiplexed transport stream;    reproducing the separated video stream as decoded video data;    receiving multimedia information associated with the multimedia coding data;    generating display control information that includes a mismatch flag which indicates whether a display mismatch condition exists between the video data and multimedia coding data; and    outputting the decoded video data, the multimedia coding data and the mismatch flag.    
     
     
         16 . The computer-readable medium of  claim 15 , wherein said image coding method further comprises: reproducing the video stream based on the multimedia information associated with the multimedia coding data and the video data.  
     
     
         17 . The computer-readable medium of  claim 15 , wherein said outputting step includes writing the decoded video data, the multimedia coding data and the mismatch flag onto a recording medium.  
     
     
         18 . The computer-readable medium of  claim 15 , wherein said image coding method further comprises: generating the multimedia information associated with the multimedia coding data.  
     
     
         19 . The computer-readable medium of  claim 15 , wherein said image coding method further comprises: detecting at least a bit rate associated with the video stream.  
     
     
         20 . The computer-readable medium of  claim 15 , wherein the display control information includes a re-encode flag which indicates whether the video data is re-encoded.  
     
     
         21 . The computer-readable medium of  claim 15 , wherein the display control information includes a frame size change flag which indicates whether a size of a picture frame associated with the video data has been changed.

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